2003 Chevrolet Suburban Owners Manual

defogger on or off. An indicator light in the button will come on to let you know that the rear window defogger is activated. The rear window defogger will automatically turn off several minutes after the button is pressed. Pressing the button while the defogger is running can also turn off the defogger. If your vehicle is equipped with heated mirrors this button will activate them. Notice; Don’t use anything sharp on the inside of the rear window. If you do, you could cut or damage the warming grid, and the repairs wouldn’t be covered by your warranty. Do not attach a temporary vehicle license, tape, a decal or anything similar to the defogger grid.

Outlet Adjustment

Use the air outlets located in the center and on the side of your instrument panel to direct the airflow.

Your vehicle has air outlets that allow you to adjust the direction and amount of airflow inside the vehicle. Move the louvers up or down. Use the thumbwheel next to or underneath the outlet to close the louvers. For the most efficient airflow and temperature control, keep the outlet in the fully opened position. Rear seat outlets can be used to adjust airflow toward either seating area, the floor or upward. Move the center louvers up or down to direct the airflow.

3-23

Operation Tips

Keep the hood and front air inlets free of ice, snow, or any other obstruction (such as leaves). The heater and defroster will work far better, reducing the chance of fogging the inside of your windows. Keep the air path under the front seats clear of objects. This helps air to circulate throughout your vehicle. Adding outside equipment to the front of your vehicle, such as hood-air deflectors, etc., may affect the performance of the heating and air conditioning system. Check with your dealer before adding equipment to the outside of your vehicle.

Dual Automatic Climate Control System Your vehicle may have the optional dual automatic climate control system. With this system you can control the heating, cooling and ventilation for your vehicle.

3-24

f : L. ..

If your vehicle is equipped with the dual automatic climate control system, memory seats, and memory mirrors, you can store and recall the climate control settings for temperature, air delivery mode, and fan speed for two different drivers. The personal choice settings recalled are determined by the transmitter used to enter the vehicle. After the button with the unlock symbol on a remote keyless entry transmitter is pressed, the climate control will adjust to the last settings of the identified driver. The settings can also be changed by pressing one of the memory buttons (1 or 2) located on the driver’s door. When adjustments are made, the new settings are automatically saved for that driver.

v (Fan): Press this button to increase or

decrease the fan speed.

0 (Off): Press this button to turn off the entire climate

control system. Outside air will still enter the vehicle, and will be directed to the floor. This direction can be changed by pressing the mode button. The temperature can aiso be adjusted using either temperature knob. Press the up or down arrows on the fan switch, the defrost button, the AUTO button, or the air conditioning button to turn the system on when it is off.

@* 4#

(Mode): Press this button to manually select the air

delivery mode to the floor, panel, or windshield outlets. This system will stay in the selected mode until the mode button is pressed again, or the AUTO button, defrost button, or the off button is pressed. Air delivery mode can be adjusted while the system is off. A five second status display will indicate the current mode.

Display: In the full AUTO mode, the automatic dual climate control system display will show the driver set temperature and an arrow pointing to the driver‘s side. An arrow pointing to the passenger’s side will display if both sides are set to the same temperature. If the temperature settings are not the same, the opposite side temperature setting will be displayed for an additional five seconds. During the five second status display the current mode and blower speed will be displayed.

Driver’s Side Temperature Knob: Turn this knob clockwise or counterclockwise to manually raise or lower the temperature on the driver’s side of the vehicle. The display will show the temperature setting decreasing or increasing and an arrow pointing to the driver; The temperature can be adjusted even if the system is turned off. If the passenger’s set temperature has not been adjusted this knob controls both the driver’s and passenger’s air temperature. The temperature to the rear seat area is controlled by using this knob. Passenger’s Side Temperature Knob: Turn this knob clockwise or counterclockwise to manually raise or lower the temperature on the passenger’s side of the vehicle. The display will show the temperature setting decreasing or increasing and an arrow pointing to the passenger. The temperature can be adjusted even if the system is turned off. Once this knob is used, the passenger’s temperature will remain independent of the driver’s until the AUTO button is pressed and held for approximately four seconds.

3-25

Automatic Operation AUTO (Automatic): When active the system will control the inside temperature, the air delivery, and the fan speed. Use the steps below to place the entire system in automatic mode:

automatic operation is

1. Press the AUTO button.

When AUTO is selected, the display will change to show the current driver’s set temperature, delivery mode and fan speed. Press the AUTO button again within five seconds to display the passenger’s set temperature. If the driver and passenger’s temperature settings are not the same, the opposite side temperature setting will be displayed for an additional five seconds. To make the passenger’s temperature the same as the driver’s press and hold the AUTO button for approximately four seconds. When auto is selected, the air conditioning operation and air inlet will be automatically controlled. The air conditioning compressor will run when the outside temperature is over approximately 40°F (4°C). The air inlet will normally be set to outside air. If it’s hot outside, the air inlet may automatically switch to recirculate inside air to help quickly cool down your vehicle. The light on the button will illuminate in recirculation.

3-26

2. Set the driver’s and passenger’s temperature. To find your comfort setting, start with a 74°F (23°C) temperature setting and allow about 20 minutes for the system to regulate. Turn the driver’s or passenger’s side temperature knob to adjust the temperature setting as necessary. If you choose the temperature setting of 60°F (15°C) the system will remain at the maximum cooling setting. If you choose the temperature setting of 90°F (32°C) the system will remain at the maximum heat setting. Choosing either maximum setting will not cause the vehicle to heat or cool any faster. Be careful not to cover the sensor located on the top of the instrument panel near the windshield. This sensor regulates air temperature based on sun load, and also turns on your headlamps. To avoid blowing cold air in cold weather, the system will delay turning on the fan until warm air is available. The length of delay depends on the engine coolant temperature. Pressing the fan switch will override this delay and change the fan to a selected speed.

to manually change the

Manual Operation To change the current setting, select one of the following: A@ V (Fan): T ~ I S button allows you to manually adjust the fan speed. Press the up arrow to increase fan speed and the down arrow to decrease fan speed. ** *# (Mode): Press this button direction of the airflow in your vehicle; keep pressing the button until the desired mode appears on the display. If you press the mode button to select an air delivery mode, the display will change to show you the selected air mode delivery. The display will then show the current status of the system. When the system is turned off, the display will go blank after displaying the current status of the system. f;' (Vent): This mode directs air to the instrument panel vents. +2 (Bi-Level): This mode directs half of the air to the instrument panel vents, then directs the remaining air to the floor vents. A little air is directed toward the windshield and the side window vents. Cooler air is directed to the upper vents and warmer air to the floor vents.

'/i (Floor): This mode directs most of the air to the floor vents. Some air also comes out of the defroster and side window vents. Use this mode to send air to the rear of the vehicle. Keep the area under the front seats free of objects that could obstruct airflow to the rear of the vehicle. The recirculation button cannot be selected in the floor mode.

&I (Recirculation): Press this button to turn the recirculation mode on or off. The recirculation mode is used to limit the amount of outside air entering your vehicle. This is helpful when you are trying to prevent outside odors and/or dust from entering your vehicle, or to help cool the air inside of your vehicle more quickly. When this mode is on, inside air will recirculate throughout your vehicle. When this button is pressed, an indicator light in the button will also come on to let you know that it is activated. If you select recirculation while in defrost, defog, or floor, the light on the button will flash and go out to let you know this is not allowed. This is to prevent windshield fogging. If the weather is cold and damp, the system may cause the windows to fog while using the recirculation mode. If the windows do start to fog, select defog or front defrost mode.

3-27

e A/C (Air Conditioning): Press this button to

manually turn the air-conditioning system on or off. When the system is selected, or in AUTO mode the system will automatically begin to cool and dehumidify the air inside of your vehicle. If you select air conditioning off while in front defrost, or defog mode the air conditioning off symbol will flash to let you know this is not allowed. You may notice a slight change in engine performance when the air-conditioning compressor shuts off and turns on again. This is normal. % (Air Conditioning Off): When you turn the air conditioning off, this symbol will appear on the display. When the air conditioning is selected or in AUTO mode, the system will run the air conditioning automatically. Defogging and Defrosting You can use either defog or front defrost to clear fog or frost from your windshield. Use the defog mode to clear the windows of fog or moisture. Use the front defrost button to defrost the front windshield. +3 (Defog): Use this setting to clear the windows of fog or moisture. Press the mode button to select this setting. This setting will deliver air to the floor and windshield outlets. 3-28

(Front Defrost): Press the front defrost button to

defrost the windshield. The system will automatically control the fan speed if you select defrost from AUTO mode. If the outside temperature is 40°F (4°C) or warmer, your air conditioning compressor will automatically run to help dehumidify the air and dry the windshield. Rear Window Defogger The lines you see on the rear window warm the glass. The rear window defogger uses a warming grid to remove fog from the rear window.

(Rear): Press this button to turn the rear window

defogger on or off. An indicator light in the button will come on to let you know that the rear window defogger is activated. The rear window defogger will turn off approximately 10 minutes after the button is pressed. If you need additional warming time, press the button again. If you vehicle is equipped with heated mirrors this button will activate them. Notice: Don’t use a razor blade or something else sharp on the inside of the rear window. If you do, you could cut or damage the defogger and the repairs would not be covered by your warranty. Do not attach a temporary vehicle license, tape, a decal or anything similar to the defogger grid.

Operation Tips

Keep the hood and front air inlets free of ice, snow, or any other obstruction (such as leaves). The heater and defroster will work far better, reducing the chance of fogging the inside of your windows. Keep the air path under the front seats clear of objects. This helps air to circulate throughout your vehicle. Adding outside equipment to the front of your vehicle, such as hood-air deflectors, etc., may affect the performance of the heating and air conditioning system. Check with your dealer before adding equipment to the outside of your vehicle.

Outlet Adjustment

.. . .. , ,

Use the air outlets located in the center and on the side of your instrument panel to direct the airflow.

Your vehicle has air outlets that allow you to adjust the direction and amount of airflow inside the vehicle. Move the louvers up or down. Use the thumbwheel next to or underneath the outlet to close the louvers. For the most efficient airflow and temperature control, keep the outlet in the fully opened position. If your vehicle is equipped with rear seat outlets they can be used to adjust airflow toward either seating area, the floor, or upward. Move the center louver up or down to direct the airflow.

3-29

Rear Air Conditioning System If your vehicle is equipped with the optional rear air conditioner it has two rear air conditioning fan speed selectors. One fan speed selector is located in the overhead console and the other is located in the headliner above the second row seats.

The knob has three speed positions. To increase the flow of cooled air, turn the knob clockwise. To decrease the flow of cooled air, turn it counterclockwise. To turn the fan off, turn the knob to the off position. To operate the rear system using the front control, just turn the knob to the fan position you want.

AUX A/C

Front Control

To increase and decrease the flow of cooled air to the rear vents, turn the knob to the fan speed you want.

Rear Control

To use the rear control, first turn the front control to the AUX position. Then, the rear control can be used to increase and decrease the airflow.

3-30

Rear Air Conditioning and Heating System If your vehicle is equipped with this system, there are controls located in the overhead console and on the back of the console in the rear seat area. The system can be controlled from the front controls as well as the rear controls.

Front Control

The front control has three knobs that control airflow speed, temperature and airflow location. Fan Knob The fan knob on the left side of the control panel adjusts the fan speed. To increase airflow, turn the knob clockwise. To decrease airflow, turn it counterclockwise. To turn the fan off, turn the knob to the off position.

0 (Off): An off setting, located on the front climate

control panel also allows the driver to turn off the rear seat passenger seat controls from the front seat. Temperature Knob The middle knob on the control panel lets you select the temperature of the air flowing into the passenger area. Turn the knob clockwise toward the read area for warmer air. Turn the knob counterclockwise toward the blue area for cooler air. Mode Knob The right knob on the control panel allows you to choose the direction of air delivery.

2 (Vent): This setting directs the air through the +g (Bi-Level): Air is delivered through the floor outlets

console outlets.

as well as the console outlets. The flow can be divided between vent and floor outlets depending upon where the knob is placed between the settings.

(Floor): This setting directs most of the air through

the floor outlets

3-31

s o '

Rear Controls

The rear seat controls have three knobs that control airflow speed, temperature and airflow location. Fan Knob The fan knob on the left side of the control panel adjusts the fan speed. To increase airflow, turn the knob clockwise. To decrease airflow, turn it counterclockwise. To turn the fan off, turn the knob to the off position.

0 (Off): Turn the knob to this position to turn the rear

seat comfort controls on or off.

Temperature Knob The middle knob on the control panel lets you select the temperature of the air flowing into the passenger area. Turn the knob clockwise toward the read area for warmer air. Turn the knob counterclockwise toward the blue area for cooler air. Mode Knob The right knob on the control panel allows you to choose the direction of air delivery. fi (Vent): This setting directs the air through the console outlets. +2 (Bi-Level): Air

is delivered through the floor outlets

as well as the instrument panel outlets. The flow can be divided between vent and floor outlets depending upon where the knob is placed between the settings.

(Floor): This setting directs most of the air through

the floor outlets

3-32

Rear Air Conditioning and Heating System and Electronic Climate Controls If your vehicle is equipped with this system, there are controls located in the overhead console and on the back of the console in the rear seat area. The system can be controlled from the overhead controls or the rear controls.

Front Controls

The overhead control has three knobs that control airflow speed, temperature and airflow location. To adjust the airflow speed turn the knob located on the left side of the control panel. To adjust the air temperature turn the temperature knob on the center of the control panel to increase or decrease the temperature. To regulate airflow location adjust the right knob on the control panel. The system also AUTO settings that can automatically control the fan speed and/or mode of the air delivery to the rear seating area.

0 (Off): An off setting, located on the overhead

climate control panel also allows the driver to turn off the rear seat passenger seat controls from the front seat.

3-33

The rear seat controls have the following settings:

6 (On/Off): Press this button to turn the rear seat comfort controls on or off. +2 (Mode): Press this button to select the air delivery, and setting, and AUTO mode. & (Temperature): Press this button up or down to increase or decrease the temperature setting. A 88 v (Fan): Press this button up or down to adjust

the fan speed.

Rear Controls

3-34

Warning Lights, Gages and Indicators This part describes the warning lights and gages that may be on your vehicle. The pictures will help you locate them. Warning lights and gages can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to your warning lights and gages could also save you or others from injury. Warning lights come on when there may be or is a problem with one of your vehicle’s functions. As you will see in the details on the next few pages, some warning lights come on briefly when you start the engine just to let you know they’re working. If you are familiar with this section, you should not be alarmed when this happens.

Gages can indicate when there may be or is a problem with one of your vehicle’s functions. Often gages and warning lights work together to let you know when there’s a problem with your vehicle. When one of the warning lights comes on and stays on when you are driving, or when one of the gages shows there may be a problem, check the section that tells you what to do about it. Please follow this manual’s advice. Waiting to do repairs can be costly - and even dangerous. So please get to know your warning lights and gages. They’re a big help. Your vehicle also has a driver information system that works along with the warning lights and gages. See Driver Information Center (DIC) on page 3-52.

3-35

Speedometer and Odometer Your speedometer lets you see your speed in both miles per hour (mph) and kilometers per hour (km/h). Your odometer shows how far your vehicle has been driven, in either miles (used in the United States) or kilometers (used in Canada). Trip Odometer The trip odometer can tell you how far your vehicle has been driven since you last set the trip odometer to zero. Press the reset button to toggle between the trip odometer and the regular odometer. Holding the reset button for two seconds while the trip odometer is displayed will reset it. To display the odometer reading with the ignition off, press the reset button. Engine Hour Meter Display The odometer can also display the number of hours the engine has run. To display the hour meter, turn the ignition off, press and hold the reset button for at least four seconds. The hour meter will be displayed for up to 30 seconds, or until the ignition is turned on.

Tachometer Your tachometer displays the engine speed in revolutions per minute (rpm). Safety Belt Reminder Light When the key is turned to RUN or START, a chime will come on for several seconds to remind people to fasten their safety belts, unless the driver’s safety belt is already buckled.

The safety belt light will also come on and stay on for several seconds, then it will flash for several more.

If the driver’s belt is already buckled, neither the chime nor the light will come on.

3-37

Air Bag Readiness Light

There is an air bag readiness light on the instrument panel cluster, which shows the air bag symbol. The system checks the air bag’s electrical system for malfunctions. The light tells you if there is an electrical problem. The system check includes the air bag sensors, the air bag modules, the passenger sensing system (if equipped), the wiring and the crash sensing and diagnostic module. For more information on the air bag system, see Air Bag Systems on page 7-68.

This light will come on when you start your vehicle, and it will flash for a few seconds. Then the light should go out. This means the system is ready.

If the air bag readiness light stays on after you start the vehicle or comes on when you are driving, your air bag system may not work properly. Have your vehicle serviced right away.

3-38

Passenger Air Bag Status Indicator If your vehicle has the passenger sensing system your rearview mirror will have a passenger air bag status indicator.

Passenger Air Bag Status Indicator - United States

Passenger Air Bag

Status Indicator

- Canada

When the ignition key is turned to RUN or START, the passenger air bag status indicator will light ON and OFF, or the symbol for on and off, for several seconds as a system check.

Then, after several more seconds, the status indicator will light either ON or OFF, or either the on or off symbol to let you know the status of the right front passenger’s frontal air bag. If the word ON or the on symbol is lit on the passenger air bag status indicator, it means that the right front J is enabled (may inflate). passenger’s frontal air

If the word OFF is lit on the air bag status indicator, it means that the passenger sensing system has turned off the right front passenger’s frontal air bag. See Passenger Sensing System on page 1-76 for more on this, including important safety information. If, after several seconds, all status indicator lights remain on, or if there are no lights at all, there may be a problem with the lights or the passenger sensing system. See your dealer for service.

If the ON indicator comes on when you have a rear-facing child restraint installed in the right front passenger’s seat, it means that the passenger sensing system has not turned off the passenger’s frontal air bag. A child in a rear-facing child restraint can be seriously injured or killed if the right front passenger’s air bag inflates. This is because the back of the rear-facing child restraint would be very close to the inflating air bag. Don’t use a rear-facing child restraint in the right front passenger’s seat unless the air bag has been turned off.

:he _.

inc.,ator a..-

e air L-3 reac ess

light ever come on together, it means that something may be wrong with the air bag system. If this ever happens, have the vehicle serviced promptly, because an adult-size person sitting in the right front passenger seat may not have the protection of the frontal air bag. See ”Air Bag Readiness Light” in the Index.

3-39

Battery Warning Light

Voltmeter Gage

If this light is displayed when the engine is running, you may have a problem with your charging system.

When your engine is not running, but the ignition is in RUN, this gage shows your battery’s state of charge in DC volts.

The battery display will also stay on while the key is in RUN until the engine is started. If the light stays on after starting the engine it could indicate a problem with the generator drive belt, or some other charging system problem. Have it checked right away. Driving with this light displayed could drain your battery. If you must drive a short distance with this light displayed, it helps to turn off all your accessories, such as the radio and the air conditioner.

When the engine is running, the gage shows the condition of the charging system. Readings between the low and high warning zones indicate the normal operating range.

3-40

Readings in the low warning zone may occur when a large number of electrical accessories are operating in the vehicle and the engine is left at an idle for an extended period. This condition is normal since the charging system is not able to provide full power at engine idle. As engine speeds are increased, this condition should correct itself as higher engine speeds allow the charging system to create maximum power. You can only drive for a short time with the reading in either warning zone. If you must drive, turn off all unnecessary accessories. Readings in either warning zone indicate a possible problem in the electrical system. Have the vehicle serviced as soon as possible. Brake System Warning Light With the ignition on, the brake system warning light will flash when you set the parking brake. The light will flash if the parking brake doesn’t release fully. If you try to drive with the parking brake engaged, a chime will sound when the vehicle speed is greater than 3 mph (5 km/h).

Your vehicle’s hydraulic brake system is divided into two parts. If one part isn’t working, the other part can still work and stop you. For good braking, though, you need both parts working well. If the warning light comes on and a chime sounds there could be a brake problem. Have your brake system inspected right away.

BRAKE

United States

Canada

This light should come on briefly when you turn the ignition key to RUN. If it doesn’t come on then, have it fixed so it will be ready to warn you if there’s a problem.

3-41

If the light comes on while you are driving, pull off the road and stop carefully. You may notice that the pedal is harder to push. Or, the pedal may go closer to the floor. It may take longer to stop. If the light is still on, have the vehicle towed for service. See Towing Your Vehic‘ on page 4-53.

Your brake system may not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to an accident. If the light is still on after you’ve pulled off the road and stopped carefully, have the vehicle towed for service.

Anti-Lock Brake System Warning Light

With the anti-lock brake system, this light will come on when you start your engine and may stay on for several seconds. That’s normal. If the light doesn’t come on then, have it fixed so it will be ready to warn you if there is a problem.

If the light stays on, or comes on when you’re driving, your vehicle needs service. You will also hear a chime sound when the light is on steady. If the regular brake system warning light isn’t on, you still have brakes, but you don’t have anti-lock brakes. If the regular brake system warning light is also on you don’t have anti-lock brakes and there’s a problem with your regular brakes. In addition to both lights, you will also hear a chime sound on the first occurrence of a problem and each time the car is shut off and then restarted. See Brake System Warning Light on page 3-41 earlier in this section.

3-42

Traction Off Light

If you have the Traction Assist System, this light should come on briefly when you turn the ignition to RUN.

If the light doesn’t come on then, the system may require service; have it fixed so it will be there to warn you if the system is turned off. If the light stays on, or comes on when you’re driving, there may be a problem with your Traction Assist System and your vehicle may need service. When this light is on, the system will not limit wheel spin. Adjust your driving accordingly. The traction off light may come on for the following reasons:

If you turn the system off by pressing the TAS on/off button located to the left of the steering wheel, the light will come on and stay on. To turn the system back on, press the button again; the light should go off.

If you move the shift lever to FIRST (l), the light will come on and stay on to indicate that the traction system is off. This is normal operation. To turn the system back on, move the shift lever back to a position other than FIRST (1); the light should go off. See Traction Assist System (TAS) on page 4-9. The light will come on and stay on if the TAS automatic engagement feature has been turned off. To turn the system on, press the TAS off/on button; the light should go off. To turn the automatic engagement feature back on, see Traction Assist System (TAS) on page 4-9. If the Traction Assist System is affected by an anti-lock brake system, TAS or engine-related problem, the system will turn off and the light will come on. Have your vehicle serviced. If the vehicle is driven over an extremely rough road, the system will turn off and the light will come on. The light will go off a few seconds after the rough road conditions go away or when the vehicle comes to a complete stop. This is normal operation.

3-43

Engine Coolant Temperature Gage 77

Transmission Temperature Gage

United States

Canada

United States

Canada

This gage shows the engine coolant temperature. It also provides an indicator of how hard your vehicle is working. During a majority of the operation, the gage will read 210°F (100°C) or less. If you are pulling a load or going up hills, it is normal for the temperature to fluctuate and approach the 250°F (122°C) mark. If the gage reaches the 260°F (1 25°C) mark, it indicates that the cooling system is working beyond its capacity. See Engine Overheating on page 5-30.

Your vehicle may be equipped with a transmission temperature gage. When your ignition is on, the gage shows the temperature of the transmission fluid. The normal operating range is from 100°F (38°C) to about 265°F (1 30°C).

3-44

At approximately 265°F (1 30°C), the message center will display a TRANSMISSION HOT message and the transmission will enter a transmission protection mode. When the transmission enters the protection mode, you may notice a change in the transmission shifting patterns. The transmission will return to normal shifting patterns when the transmission fluid temperature falls below 260°F (1 27°C). See Driver lnformation Center (DlC) on page 3-52 for further information. If the transmission fluid reaches temperatures of approximately 275°F (135°C) or greater, the Driver lnformation Center will display a TRANS HOT IDLE ENG warning message. Pull the vehicle off the roadway when it is safe to do so. Set the parking brake, place the transmission in PARK (P) and allow the engine to idle until the transmission temperature falls below 260°F (127°C). If the transmission continues to operate above 265°F (13O"C), contact your nearest dealer or the GM Roadside Assistance Center. See Roadside Assistance Program on page 7-6.

Notice: If you keep driving your vehicle with the transmission temperature gage above the normal operating range, you can damage the transmission. This could lead to costly repairs that may not be covered under your warranty. The following situations can cause the transmission to operate at higher temperatures: 0 Towing a trailer 0 Hot outside air temperatures 0 Hauling a large or heavy load

Low transmission fluid level High transmission fluid level Restricted air flow to the radiator and the auxiliary transmission oil cooler (if equipped).

A temporary solution to hotter transmission operating temperatures may be to let the transmission cool down. If the transmission is operated at higher temperatures on a frequent basis, see Scheduled Maintenance on page 6-5 for the proper transmission maintenance intervals.

3-45

Malfunction Indicator Lamp Check Engine Light

Your vehicle is equipped with a computer which monitors operation of the fuel, ignition and emission control systems.

This system is called OBD II (On-Board Diagnostics-Second Generation) and is intended to assure that emissions are at acceptable levels for the life of the vehicle, helping to produce a cleaner environment. The Check Engine light comes on to indicate that there is a problem and service is required. Malfunctions often will be indicated by the system before any problem is apparent. This may prevent more serious damage to your vehicle. This system is also designed to assist your service technician in correctly diagnosing any malfunction. Notice: If you keep driving your vehicle with this light on, after a while, your emission controls may not work as well, your fuel economy may not be as good and your engine may not run as smoothly. This could lead to costly repairs that may not be covered by your warranty. 3-46

Notice: Modifications made to the engine, transmission, exhaust, intake or fuel system of your vehicle or the replacement of the original tires with other than those of the same Tire Performance Criteria (TPC) can affect your vehicle’s emission controls and may cause this light to come on. Modifications to these systems could lead to costly repairs not covered by your warranty. This may also result in a failure to pass a required Emission Inspection/Maintenance test. This light should come on, as a check to show you it is working, when the ignition is on and the engine is not running. If the light doesn’t come on, have it repaired. This light will also come on during a malfunction in one of two ways:

Light Flashing - A misfire condition has been detected. A misfire increases vehicle emissions and may damage the emission control system on your vehicle. Dealer or qualified service center diagnosis and service may be required. Light On Steady - An emission control system malfunction has been detected on your vehicle. Dealer or qualified service center diagnosis and service may be required.

If the Light is Flashing The following may prevent more serious damage to your vehicle:

Reducing vehicle speed. Avoiding hard accelerations.

0 Avoiding steep uphill grades.

If you are towing a trailer, reduce the amount of cargo being hauled as soon as it is possible.

If the light stops flashing and remains on steady, see “If the Light Is On Steady” following. If the light continues to flash, when it is safe to do so, stop the vehicle. Find a safe place to park your vehicle. Turn the key off, wait at least 10 seconds and restart the engine. If the light remains on steady, see “If the Light Is On Steady” following. If the light is still flashing, follow the previous steps, and drive the vehicle to your dealer or qualified service center for service.

If the Light Is On Steady You may be able to correct the emission system malfunction by considering the following: Did you recently put fuel into your vehicle? If so, reinstall the fuel cap, making sure to fully install the cap. See Filling Your Tank on page 5-9. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap will allow fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn the light off. Did you just drive through a deep puddle of water? If so, your electrical system may be wet. The condition will usually be corrected when the electrical system dries out. A few driving trips should turn the light off.

3-47

Here are some things you need to know to help your vehicle pass an inspection: Your vehicle will not pass this inspection if the Check Engine light is on or not working properly. Your vehicle will not pass this inspection if the OBD (on-board diagnostic) system determines that critical emission control systems have not been completely diagnosed by the system. The vehicle would be considered not ready for inspection. This can happen if you have recently replaced your battery or if your battery has run down. The diagnostic system is designed to evaluate critical emission control systems during normal driving. This may take several days of routine driving. If you have done this and your vehicle still does not pass the inspection for lack of OBD system readiness, see your dealer or qualified service center to prepare the vehicle for inspection.

Have you recently changed brands of fuel? If so, be sure to fuel your vehicle with quality fuel. See Gasoline Octane on page 5-5. Poor fuel quality will cause your engine not to run as efficiently as designed. You may notice this as stalling after start-up, stalling when you put the vehicle into gear, misfiring, hesitation on acceleration or stumbling on acceleration. (These conditions may go away once the engine is warmed up.) This will be detected by the system and cause the light to turn on. If you experience one or more of these conditions, change the fuel brand you use. It will require at least one full tank of the proper fuel to turn the light off. If none of the above steps have made the light turn oft, have your dealer or qualified service center check the vehicle. Your dealer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that may have developed. Emissions Inspection and Maintenance Programs Some state/provincial and local governments have or may begin programs to inspect the emission control equipment on your vehicle. Failure to pass this inspection could prevent you from getting a vehicle registration.

3-48

Oil Pressure Gage

t kc

J if the oil pressure is

Dc low. If you do, your engine can become so hot that it catches fire. You or others could be burned. Check your oil as soon as possible and have your vehicle serviced.

United States

Canada

The oil pressure gage shows the engine oil pressure in psi (pounds per square inch) when the engine is running. Canadian vehicles indicate pressure in kPa (kilopascals). Oil pressure may vary with engine speed, outside temperature and oil viscosity, but readings above the low pressure zone indicate the normal operating range. A reading in the low pressure zone may be caused by a dangerously low oil level or some other problem causing low oil pressure. Check your oil as soon as possible. See Oil Pressure Low under DIC Warnings and Messages on page 3-62 and Engine Oil on page 5- 17.

Notice: Damage to your engine from neglected oil problems can be costly and is not covered by your warranty. Cruise Control Light

The cruise light comes on whenever you set your cruise control. See “Cruise Control’’ under Turn Signal/Multifunction Lever on page 3-7.

3-49

This light is displayed * has been activated.

when the tow/haul mode

Tow/HauI Mode Light

Four-Wheel-Drive Light

The four-wheel drive indicator will light up when you shift a manual transfer case into four-wheel drive and the front axle engages.

Some delay between shifting and the indicator’s lighting is normal. See Four-wheel Drive on page 2-28 for more information.

For more information, see Towing a Trailer on page 4-59.

3-50

Fuel Gage

United States

Canada

The fuel gage, when the ignition is on, tells you about how much fuel you have left in your tank. The gage will first indicate empty before you are out or fuel, and you should get more fuel as soon as possible. When the fuel tank is low the FUEL LEVEL LOW message will appear. See Driver Information Center (DIC) on page 3-52.

Here are some situations you may experience with your fuel gage. None of these indicate a problem with the fuel gage.

At the gas station, the fuel pump shuts off before the gage reads full. It takes a little more or less fuel to fill up than the fuel gage indicated. For example, the gage may have indicated the tank was half full, but it actually took a little more or less than half the tank’s capacity to fill the tank. The gage goes back to empty when you turn off the ignition.

Low Fuel Warning Light The light next to the fuel gage will come on briefly when you are starting the engine. This light comes on when the fuel tank is low on fuel. To turn it off, add fuel to the fuel tank. See Fuel on page 5-5.

3-5 1

Driver Information Center (DIC) The DIC display is located on the instrument panel cluster above the steering wheel. The DIC can display information such as the trip odometer, fuel economy and personalization features.

A (Trip Information): This button will display the odometer, personal trip odometer, business trip odometer, hourmeter, annual log and the timer. B (Fuel Information): This button will display the current range, average fuel economy, instant fuel economy and engine oil life. C (Personalization): This button will change personal options available on your vehicle.

3-52

D (Select): This button resets certain functions and turns off or acknowledges messages on the DIC. If your vehicle is not equipped with the DIC steering wheel buttons you will not have all of the features listed above, and you will turn off, or acknowledge DIC messages by using the trip odometer reset stem located on the instrument panel cluster. DIC Operation and Displays

The DIC comes on when the ignition is on. After a short delay the DIC will display the current driver and the information that was last displayed before the engine was turned off. If a problem is detected, a warning message will appear on the display. Pressing the select button will acknowledge any current warning or service messages. The DIC has different modes which can be accessed by pressing the four buttons on the DIC. These buttons are trip information, fuel information, personalization and select. The button functions are detailed in the following. If your vehicle is not equipped with the DIC steering wheel buttons not all of the features listed will be available on your vehicle.

Trip Information Button Use the trip information button to scroll through the SEASON ODOMETER, PERSONAL TRIP ON/OFF, BUSINESS TRIP ON/OFF, HOURMETER, ANNUAL LOG and TIMER. If the personal trip and/or the business trip are set to ON, you will also be able to scroll through more messages. See Personal Trip and Business Trip next for more information. If your vehicle is not equipped with the DIC steering wheel buttons you can select the trip information by pressing the trip odometer reset stem on the instrument panel cluster. Personal Trip If the PERSONAL TRIP is on (turn it on or off by pressing the select button) you will also be able to scroll through the following:

PERSONAL: XX MI - This shows the current distance traveled since the last reset for the personal trip odometer in either miles or kilometers. PERSONAL: XX.X MPG - This shows the amount of fuel used for the personal trip. PERSONAL: AVG ECONOMY - This shows how many miles per gallon of fuel your vehicle is getting for the personal trip based on current and past driving conditions.

PERSONAL: AVG MPH - This shows the vehicle’s average speed for the personal trip. PERSONAL: o/o ANNUAL - This shows the ratio of personal trip miles to annual miles as a percent. You can reset the personal trip odometer by pressing and holding the trip odometer reset stem. Business Trip If the BUSINESS TRIP is on (turn it on or off by pressing the select button) you will also be able to scroll through the following:

BUSINESS: XX MI - This shows the current distance traveled since the last reset for the business trip odometer in either miles or kilometers. BUSINESS: XX.X MPG - This shows the amount of fuel used for the business trip. BUSINESS: AVG ECONOMY - This shows how many miles per gallon of fuel your vehicle is getting for the business trip based on current and past driving conditions. BUSINESS: AVG MPH - This shows the vehicle’s average speed for the business trip. BUSINESS: Yo ANNUAL - This shows the ratio of business trip miles to annual miles as a percent.

3-53

To reset the personal or business trip information, do the following: press and hold select button for two seconds while in one of the personal or business trip modes. This will reset all of the information for the personal or business trip, or if your vehicle does not have the DIC steering wheel control buttons, press the reset stem on the instrument panel cluster. You can also reset the PERSONAL: XX MI, or BUSINESS: XX MI, while they are displayed by pressing the reset stem on the cluster. If you press and hold the reset stem or select button for four seconds, the display will show the distance traveled since the last ignition cycle for the personal or business trip. Season Odometer Press the trip information button, or the trip odometer reset step, until SEASON ODOMETER appears on the display. This shows the total distance the vehicle has been driven in either miles or kilometers. Pressing the reset stem located on the instrument cluster with the vehicle off will also display the season odometer. Hourmeter Press the trip button to scroll to the hourmeter. The hourmeter shows the total number of hours the engine has run. Pressing the reset stem on the instrument cluster will also display the hourmeter after the season odometer is displayed. 3-54

Annual Log Press the trip button, or the reset stem on the instrument panel cluster, to scroll to the annual log. The annual log shows the mileage accumulated since it was last reset. To reset the annual log, press and hold the select button, or the trip odometer reset stem for approximately two seconds. Timer The DIC can be used as a stopwatch. Press the select button, or the trip odometer reset stem, while TIMER is displayed to start the timer. The display will show the amount of time that has passed since the timer was last reset (not including time the ignition is off). Time will continue to be counted as long as the ignition is on, even if another display is being shown on the DIC. The timer will record up to 99 hours, 59 minutes and 59 seconds (995959) after which the display will roll back to zero. To stop the counting of time, press the select button briefly while TIMER is displayed. To reset the timer to zero, press and hold the select button, or the trip odometer reset stem, while TIMER is displayed.

Fuel Information Button Use the fuel information button to scroll through the range, average fuel economy, instant fuel economy and the GM Oil Life SystemTM. If your vehicle is not equipped with the DIC steering wheel control buttons you will not be able to display the fuel information. Fuel Range Press the fuel information button until RANGE appears to display the remaining distance you can drive without refueling. It’s based on fuel economy and the fuel remaining in the tank. The display will show LOW if the fuel level is low. The fuel economy data used to determine fuel range is an average of recent driving conditions. As your driving conditions change, this data is gradually updated. Fuel range cannot be reset. Average Fuel Economy Press the fuel information button until AVG appears in the display. Average fuel economy is how many miles per gallon your vehicle is getting based on current and past driving conditions. Press and hold the select button while AVG.ECON is displayed to reset the average fuel economy. Average fuel economy will then be calculated starting from that point. If the average fuel economy is not reset, it will be continually updated each time you drive.

Instant Fuel Economy Press the fuel information button until INST appears in the display. Instant fuel economy is how many miles per gallon your vehicle is at the particular moment in time. The instant fuel economy cannot be reset. GM Oil Life SystemTM Press the fuel information button until ENGINE OIL LIFE appears in the display. The GM Oil Life SystemTM shows an estimate of the oil’s remaining useful life. It will show 100% when the system is reset after an oil change. It will alert you to change your oil on a schedule consistent with your driving conditions. Always reset the engine oil life after and oil change. To reset the Oil Life System press and hold the select button while ENGINE OIL LIFE is displayed. The DIC does not replace the need to maintain your vehicle as recommended in the Maintenance Schedule in this manual. Also, the oil change reminder will not detect dusty conditions or engine malfunctions that may affect the oil. Also, the oil change reminder does not measure how much oil you have in your engine. So, be sure to check your oil level often. See Engine Oil on page 5- 17.

3-55

EASY EXIT SEAT DISPLAY UNITS (E/M) DISPLAY LANGUAGE

The driver’s preferences are recalled by pressing the unlock button on the remote keyless entry transmitter or by pressing the appropriate memory button 1 or 2 located on the driver’s door. Alarm Warning Type Press the personalization button until ALARM WARNING TYPE appears in the display. To select your personalization for alarm warning type, press the select button while ALARM WARNING TYPE is displayed on the DIC. Pressing the select button will scroll through the following choices: ALARM WARNING: BOTH (default): The headlamps will flash and the horn will chirp when the alarm is active.

ALARM WARNING: OFF: There will be no alarm warning on activation.

Personalization Button You can program certain features to a preferred setting for up to two people. Press the personalization button to scroll through the following personalization features. All of the personalization options may not be available on your vehicle. only the options available will be displayed on your DIC. If your vehicle is not equipped with the DIC steering wheel buttons you will not have any of these personalization options except for DISPLAY LANGUAGE. See DISPLAY LANGUAGE later in this section for more information. ALARM WARNING TYPE AUTOMATIC LOCKING AUTOMATIC UNLOCKING SEAT POSITION RECALL PERIMETER LIGHTING REMOTE LOCK FEEDBACK REMOTE UNLOCK FEEDBACK HEADLAMPS ON AT EXIT CURB VIEW ASSIST

3-56

ALARM WARNING: HORN: The horn will chirp when the alarm is active.

ALARM WARNING: LAMPS: The headlamps will flash when the alarm is active. Choose one of the four options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature. For more information on alarm warning type, see Content Theft-Deterrent on page 2- 18. Automatic Locking Press the personalization button until AUTOMATIC LOCKING appears in the display. To select your personalization for automatic locking, press the select button while AUTOMATIC LOCKING is displayed on the DIC. Pressing the select button will scroll through the following choices:

LOCK DOORS OUT OF PARK (default): The doors will lock when the vehicle is shifted out of PARK (P).

LOCK DOORS MANUALLY: The be locked automatically.

doors will not

LOCK DOORS WITH SPEED: The doors will lock when the vehicle speed is above 8 mph (13 km/h) for three seconds.

Choose one of the three options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature. For more information on automatic door locks see Programmable Automatic Doors Locks. Automatic Unlocking Press the personalization button until AUTOMATIC UNLOCKING appears in the display. To select your personalization for automatic unlocking, press the select button while AUTOMATIC UNLOCKING is displayed on the DIC. Pressing the select button will scroll through the following choices:

UNLOCK ALL IN PARK (default): All of the doors will unlock when the vehicle is shifted into PARK (P).

UNLOCK ALL AT KEY OUT: All of the doors will unlock when the key is taken out of the ignition.

UNLOCK DOORS MANUALLY: The doors will not be unlocked automatically.

UNLOCK DRIVER IN PARK: The driver’s door will be unlocked when the vehicle is shifted in PARK (P). Choose one of the four options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature. For more information on automatic door locks see Programmable Automatic Door Locks.

3-57

(,

Perimeter Lighting Press the personalization button until PERIMETER LIGHTING appears in the display. To select your personalization for perimeter lighting, press the select button while PERIMETER LIGHTING is displayed on the DIC. Pressing the select button will scroll through the following choices: PERIMETER LIGHTING ON (default): The headlamps and back-up lamps will come on for 40 seconds, if it is dark enough outside, when you unlock the vehicle with the remote keyless entry transmitter. PERIMETER LIGHTING OFF: The perimeter lights will not come on when you unlock the vehicle with the remote keyless entry transmitter. Choose on of the two options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature.

Seat Position Recall Press the personalization button until SEAT POSITION RECALL appears on the display. To select your personalization for seat position recall, press the select button while SEAT POSITION RECALL is displayed on the DIC. Pressing the select button will scroll through the following choices:

SEAT POSITION RECALL OFF (default): The memory seat position you saved will only be recalled when the memory button 1 or 2 is pressed on the driver’s door panel. SEAT POSITION RECALL AT KEY IN: The memory seat position you saved will be recalled when you put the key in the ignition.

SEAT POSITION RECALL ON REMOTE: The memory seat position you saved will be recalled when you unlock the vehicle with the remote keyless entry transmitter. Choose one of the three options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature. For more information on seat position recall see Memory Seat on page 2-6 1.

3-58

Remote Lock Feedback Press the personalization button until REMOTE LOCK FEEDBACK appears in the display. To select your personalization for the feedback you will receive when locking the vehicle with the remote keyless entry transmitter, press the select button while REMOTE LOCK FEEDBACK is displayed on the DIC. Pressing the select button will scroll through the following choices:

LOCK FEEDBACK: BOTH (default): The lamps will flash each time you press the button with the lock symbol on the remote keyless entry transmitter and the horn will chirp the second time you press the lock button.

parking

LOCK FEEDBACK: OFF: There will be no feedback when locking the vehicle.

LOCK FEEDBACK: HORN: The horn will chirp the second time you press the button with the iock symbol on the remote keyless entry transmitter.

LOCK FEEDBACK: LAMPS: The parking lamps will flash each time you press the button with the lock symbol on the remote keyless entry transmitter. Choose one of the four options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature.

Remote Unlock Feedback Press the personalization button until REMOTE UNLOCK FEEDBACK appears in the display. To select your personalization for the feedback you will receive when unlocking the vehicle with the remote keyless entry transmitter, press the select button while REMOTE UNLOCK FEEDBACK is displayed on the DIC. Pressing the select button will scroll through the following choices:

UNLOCK FEEDBACK: LAMPS: The parking lamps will flash each time you press the button with the unlock symbol on the remote keyless entry transmitter.

UNLOCK FEEDBACK: BOTH (default): The lamps will flash each time you press the button with the unlock symbol on the remote keyless entry transmitter and the horn will chirp the second time you press the unlock button.

parking

UNLOCK FEEDBACK: OFF: There will be no feedback when unlocking the vehicle.

UNLOCK FEEDBACK: HORN: The horn will chirp the second time you press the button with the unlock symbol on the remote keyless entry transmitter. Choose one of the four options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature.

2-59

Headlamps on at Exit Press the personalization button until HEADLAMPS ON AT EXIT appears in the display. To select your personalization for how long the headlamps will stay on when you turn off the vehicle, press the select button while HEADLAMPS ON AT EXIT is displayed on the DIC. Pressing the select button will scroll through the following choices:

HEADLAMPS DELAY: 10 SEC (default) HEADLAMPS DELAY: 20 SEC HEADLAMPS DELAY: 40 SEC HEADLAMPS DELAY: 60 SEC HEADLAMPS DELAY: 120 SEC HEADLAMPS DELAY: 180 SEC HEADLAMPS DELAY OFF

The amount of time you choose will be the amount of time that the headlamps stay on after you turn off the vehicle. If you choose off, the headlamps will turn off as soon as you turn off the vehicle. Choose one of the seven options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature.

3-60

Curb View Assist Press the personalization button until CURB VIEW ASSIST appears in the display. To select your personalization for curb view assist, press the select button while CURB VIEW ASSIST is displayed on the DIC. Pressing the select button will scroll through the following choices:

CURB VIEW: OFF (default): Neither outside mirror will be tilted down when the vehicle is shifted into REVERSE (R).

CURB VIEW: PASSENGER: The passenger’s outside mirror will be tilted down when the vehicle is shifted into REVERSE (R).

CURB VIEW: DRIVER: The driver’s outside mirror will be tilted down when the vehicle is shifted into REVERSE (R).

CURB VIEW: BOTH: The driver’s and passenger’s outside mirror will be tilted down when the vehicle is shifted into REVERSE (R). Choose one of the four options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature. For more information on curb view assist, see Curb View Assist Mirrors in the Index.

Easy Exit Seat Press the personalization button until EASY EXIT SEAT appears in the display. To select your personalization for seat position exit, press the select button while EASY EXIT SEAT is displayed on the BIG. Pressing the select button will scroll through the following choices:

SEAT POSITION EXIT OFF (default): The driver’s seat will move to the exit position when the exit button on the driver’s door panel is pressed.

SEAT POSITION EXIT ON: The driver’s seat will move to the exit position when the key is removed from the ignition. Choose one of the two options and press the personalization button while it is displayed on the DIC to select it and move on to the next feature. For more information on the seat position exit see Memory Seat on page 2-61. Display Units (ENG/MET) Press the personalization button until DISPLAY UNITS appears in the display. To select English or metric, press the select button while DISPLAY UNITS is displayed on the DIC. Pressing the select button will scroll through the following choices:

UNITS: ENGLISH UNITS: METRIC

If you choose English, all information will be displayed in English units. For example, distance in miles and fuel economy in miles per gallon. Choose one of the two options and press the personalization button while it is displayed on the DIC to select it and end out of the personalization options. Display Language To select your personalization for display language, press the select button while DISPLAY LANGUAGE is displayed on the DIC. Pressing the select button will scroll through the following languages: 0 English French 0 Spanish You can also scroll through the different languages by pressing and holding the trip reset stem for four seconds, as long as you are in the season odometer mode. Choose one of the three options and press the personalization button while it is displayed on the DIC to select it.

3-61

in the

If you accidentally choose a language that you don’t want or understand, press and hold the personalization button and the trip information button at the same time. The DIC will begin scrolling through the languages in their particular language. English will be in English, French will be in French and so on. When you see the language that you would like, release both buttons. The DIC will then display the information language you chose. Select Button The select button is used to reset certain functions and turn off or acknowledge messages on the DIC display. The select button also toggles through the options available in each personalization menu. For example, this button will reset the trip odometers, turn off the FUEL LEVEL LOW message, and toggle through the languages you can select the DIC to display information in. DIC Warnings and Messages Warning messages are displayed on the DIC to notify the driver that the status of the vehicle has changed and that some action may be needed by the driver to correct the condition. If there is more than one message that needs to be displayed they will appear one after another. Some messages may not require immediate action but you should press the select button to acknowledge that you received the message and clear it 3-62

from the display because they are more urgent. These messages require action before they can be removed from the DIC display. The following are the possible messages that can be displayed and some information about them. CHANGE ENGINE OIL This message is displayed when the engine oil needs to be changed. When you change the engine oil, be sure to reset the CHANGE ENGINE OIL message. See Engine Oil, When to Change under Engine Oil on page 5-1 7. LOW COOLANT LEVEL If the engine coolant level is low, this message will appear on the DIC. Adding coolant will clear the message. ENGINE COOLANT HOT If the cooling system temperature gets hot, this message will appear in the DIC. Stop the vehicle and let the engine idle in PARK (P) to allow the coolant to reach a safe temperature. This message will clear when the coolant temperature drops to safe operating temperature.

ENGINE OVERHEATED If the engine cooling system reaches unsafe temperatures for operation, this message will appear in the DIC and you will hear a chime. Stop and turn off the vehicle as soon as it is safe to do so to avoid severe damage. This message will clear when the engine has cooled to a safe operating temperature. OIL PRESSURE LOW If low oil pressure levels occur, this message will be displayed on the DIC and a chime will sound. Stop the vehicle as soon as safely possible and do not operate it until the cause of the low oil pressure has been corrected. Check your oil as soon as possible and have your vehicle serviced. REDUCED ENGINE POWER This message is displayed when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Overheating on page 5-30 for further information.

BATTERY NOT CHARGING If the battery is not charging during operation, this message will appear on the DIC. Driving with this problem could drain your battery. Have the electrical system checked as soon as possible. Pressing the select button will acknowledge this message and clear it from the DIC display. SERVICE AIRBAG If there is a problem with the air bag system, this message will be displayed on the DIC. Have a qualified technician inspect the system for problems. Pressing the select button will acknowledge this message and clear it from the DIC display. SERVICE BRAKE SYSTEM If there is a problem with the brake system, this message will be displayed on the DIC. If this message appears, stop as soon as possible and turn off the vehicle. Restart the vehicle and check for the message on the DIC display. If the message is still displayed, or appears again when you begin driving, the brake system needs service.

3-63

SERVICE BRAKE BOOSTER If your vehicle has vaccum assist power brakes, this message will be displayed on the DIC when there is a problem with the Supplemental Brake Assist system. If the message is displayed immediately after starting the vehicle or the message appears while driving, your Supplemental Brake Assist system needs service. See Brake System Warning Light on page 3-41.

(Continued

pedal will be harder to push and it will take longer to stop. If you continue to drive with this message displayed it can lead to a crash. Have the brake system serviced as soon as possible.

SERVICE 4 WHEEL STEER If a problem occurs with the 4 wheel steer system, this message will appear on the DIC. If this message appears, stop as soon as possible, and turn off the vehicle. Restart the vehicle and check for the message on the DIC display. If the message is still displayed, or appears again when you begin driving, the four wheel steer system needs service.

rking

Your brake system may not be \ properly if the SERVICE BRAKE BOOSTER message is displayed. If the brake system warning light is also on, you should have the vehicle towed for service. See “Brake System Warning Light” in the Index. If the brake system warning light isn’t still have brakes, but the supplemental brake In assist system may not operate properly. theevent of a vacuum loss, you may not have vacuum power assist for braking. The brake

on, you

CAUTION:

(Continued)

3-64

SERVICE 4WD If a problem occurs with the four wheel drive system this message will appear on the DIC. If this message appears, stop as soon as possible and turn off the vehicle. Restart the vehicle and check for the message on the DIC display. If the message is still displayed, or appears again when you begin driving, the four wheel drive system needs service. SERVICE RIDE CONTROL If a problem occurs with the suspension system, this message will appear on the DIC. If this message appears turn off the vehicle. Restart the vehicle and check for the message on the DIC display. If the message is still displayed, or appears again when you begin driving, the ride control needs service. TURN SIGNAL ON If a turn signal is left on for 3/4 of a mile (1.2 km), this message will appear on the display and you will hear a chime. Move the turn signaVmultifunction lever to the off position. Pressing the select button will acknowledge this message and clear it from the DIC display.

REAR ACCESS OPEN If the liftgate is open while the ignition is in RUN, this message will appear on the DIC display and you will hear a chime. Turn the vehicle off and check the liftgate. Restart the vehicle and check for the message on the DIC display. Pressing the select button will acknowledge this message and clear it from the DIC display. REDUCED BRAKE POWER If your vehicle has vacuum assist power brakes, this message will be displayed and you may notice that the brake pedal is harder to push and it will take longer to stop. You may also hear a motor running and feel a slight vibration in the brake pedal or steering wheel when you apply or release the brake pedal even if your foot is not on the brake pedal. This indicates that the Supplemental Brake Assist system is working to maintain braking power. If you are braking lightly, you may not notice any difference in the operation of your brakes.

3-65

This message may also be displayed for brief periods if you are driving at higher elevations and are pumping your brakes or braking hard. The message may clear after you’ve lifted your foot from the accelerator pedal an allowed the vehicle to coast in gear or after you have driven down to a lower elevation. This is a normal operation of your brake system and does not require that the brake system be serviced. However, if the message does not clear, your brake system needs service. While the message is displayed you will notice that the brake pedal is harder to push and it will take longer to stop. See Brake System Warning Light on page 3-4 1.

Your brake system may ne- -Je working properly if the REDUCED BRAKE POWER message is displayed. If this message comes on and stays on while driving, pull off the road and stop carefully. The brake pedal will be harder to push and it will take longer to stop. (Continued)

CAUTION:

3-66

If the message is no longer displayed after you have pulled off the road and stopped, you can continue driving. However, if the message is still displayed, or if it comes on again when you are driving, there is a problem with your brake system. If you continue to drive with this message displayed it can lead to an accident. You should have the vehicle towed for service. Also, see Brake System Warning Light in the Index.

FUEL LEVEL LOW If the fuel level is low, this message will appear on the DIC and you will hear a chime. Refuel as soon as possible. Pressing the select button will acknowledge this message and clear it from the DIC display.

CHECK OIL LEVEL If the oil level in the vehicle is low, this message will appear on the DIC. Check and oil level and correct it as necessary. You may need to let the vehicle cool or warm up and cycle the ignition to be sure this message will clear. Once the problem is corrected, pressing the select button will clear this message from the DIC display. CHECK WASHER FLUID if the washer fluid level is low, this message will appear on the DIC. Adding washer fluid will clear the message. Pressing the select button will acknowledge this message and clear it from the DIC display. TRACTION ACTIVE When the traction control system has detected that any of the vehicle’s wheels are spinning, the traction control system will activate and this message will appear on the DIC. For more information see Traction Assist System (TAS) on page 4-9

TRANSMISSION HOT If the transmission fluid temperature becomes high, the message center will display this message. When the transmission enters the protection mode, y ~ u may notice a change in the transmission shifting patterns. When the transmission fluid temperature returns to normal, the display will turn off and the transmission shifting patterns will return to normal. Notice: If you keep driving your vehicle with the transmission TRANS FLUID HOT message displayed, you can damage the transmission. This could lead to costly repairs that may not be covered under your warranty. The following situations can cause the transmission to operate at higher temperatures:

Towing a trailer Hot outside air temperatures Hauling a large or heavy load Low transmission fluid level High transmission fluid level Restricted air flow to the radiator and the auxiliary transmission oil cooler.

3-67

A temporary solution to hotter transmission operating temperatures may be to let the transmission cool down. If the transmission is operated at higher temperatures on a frequent basis, see Scheduled Maintenance on page 6-5 for the proper transmission maintenance intervals. DRIVER DOOR AJAR If the driver’s door is not fully closed, this message will appear on the display and you will hear a chime. Stop and turn off the vehicle, check the door for obstacles, and close the door again. Check to see if the message still appears on the DIC. Pressing the select button will acknowledge this message and clear it from the DIC display. PASSENGER DOOR AJAR If the passenger’s door is not fully closed, this message will appear on the display and you will hear a chime. Stop and turn off the vehicle, check the door for obstacles, and close the door again. Check to see if the message still appears on the DIC. Pressing the select button will acknowledge this message and clear it from the DIC display.

LEFT REAR DOOR AJAR If the driver’s side rear door is not fully closed, this message will appear on the display and you will hear a chime. Stop and turn off the vehicle, check the door for obstacles, and close the door again. Check to see if the message still appears on the DIC. Pressing the select button will acknowledge this message and clear it from the DIC display. RIGHT REAR DOOR AJAR If the passenger’s side rear door is not fully closed, this message will appear on the display and you will hear a chime. Stop and turn off the vehicle, check the door for obstacles, and close the door again. Check to see if the message still appears on the DIC. Pressing the select button will acknowledge this message and clear it from the DIC display. RFA # BATTERY LOW If a remote keyless entry transmitter battery is low, this message will appear on the DIC. The battery needs to be replaced in the transmitter. Pressing the select button will acknowledge this message and clear it from the DIC display.

3-68

SERVICE STABILITY If you ever see the SERVICE STABILITY message, it means there may be a problem with your Stabilitrak@ system. If you see this message try to reset the system (stop; turn off the engine; then start the engine again). If the SERVICE STABILITY message still comes on, it means there is a problem. You should see your dealer for sewice. The vehicle is safe to drive, however, you do not have the benefit of Stabilitrak@ , so reduce your speed and drive accordingly. STABILITY SYS ACTIVE You may see the STABILITY SYS ACTIVE message on the DIC. It means that an advanced computer-controlled system has come on to help your vehicle continue to go in the direction in which you’re steering. Stabilitrak@ activates when the computer senses that your vehicle is just starting to spin, as it might if you hit a patch of ice or other slippery spot on the road. When the system activates, you may hear a noise or feel a vibration in the brake pedal. This is normal. When the STABILITY SYS ACTIVE message is on, you should continue to steer in the direction you want to go. The system is designed to help you in bad weather or other difficult driving situations by making the most of whatever road conditions will permit.

STABILITY SYS DISABLED The STABILITY SYS DISABLED message will turn on when you press the Stabilitrak@ button, or when the stability control has been automatically disabled. To limit wheel spin and realize the full benefits of the stability enhancement system, you should normally leave Stabilitrak@ on. However, you should turn Stabilitrak@ off if your vehicle gets stuck in sand, mud, ice or snow and you want to “rock your vehicle to attempt to free it, or if you are driving in extreme off-road conditions and require more wheel spin. See If You Are Stuck: In Sand, Mud, Ice or Snow on page 4-50. To turn the Stabilitrak@ system back on press the Stabilitrak@ button again. There are four conditions that can cause this message to appear. One condition is overheating, which could occur if Stabilitrak@ activates continuously for an extended period of time. The message will also be displayed if the brake system warning light is on. See Brake System Warning Light on page 3-47. The message could be displayed if the stability system takes longer than usual to complete its diagnostic checks due to driving conditions. Also, if an engine or vehicle related problem has been detected, and the vehicle needs service, the message will appear. The message will turn off as soon as the conditions that caused the message to be displayed are no longer present.

3-69

Your vehicle may have a feature called Retained Accessory Power (RAP). With RAP, you can play your audio system even after the ignition is turned off. See “Retained Accessory Power (RAP)” under lgnition Positions on page 2-2 1. Setting the Time for Radios without Radio Data Systems (RDS) Press and hold the HR or MIN arrow for two seconds. Then press the HR (down) arrow until the correct hour appears on the display. Press and hold the MIN (up) arrow until the correct minute appears on the display. The time may be set with the ignition on or off.

Audio System(s) Notice: Before you add any sound equipment to your vehicle - like a tape player, CB radio, mobile telephone or two-way radio - be sure you can add what you want. If you can, it’s very important to do it properly. Added sound equipment may interfere with the operation of your vehicle’s engine, Delphi Electronics radio or other systems, and even damage them. Your vehicle’s systems may interfere with the operation of sound equipment that has been added improperly. So, before adding sound equipment, check with your dealer and be sure to check federal rules covering mobile radio and telephone units. Your audio system has been designed to operate easily and to give years of listening pleasure. You will get the most enjoyment out of it if you acquaint yourself with it first. Find out what your audio system can do and how to operate all of its controls to be sure you’re getting the most out of the advanced engineering that went into it.

3-70

Setting the Time for Radios with Radio Data Systems (RDS) Your radio may have a button marked with an H or HR to represent hours and an M or MN to represent minutes. Press and hold the hour button until the correct hour appears on the display. Press and hold the minute button until the correct minute appears on the display. The time may be set with the ignition on or off. To synchronize the time with an FM station broadcasting Radio Data System (RDS) information, press and hold the hour and minute buttons at the same time until RDS TIME appears on the display. To accept this time, press and hold the hour and minute buttons, at the same time, for another 2 seconds. If the time is not available from the station, NO UPDAT will appear on the display instead. RDS time is broadcast once a minute. Once you have tuned to an RDS broadcast station, it may take a few minutes for your time to update.

AM-FM Radio

Playing the Radio

PWR (Power): Press this knob to turn the system on and off. VOL (Volume): Turn the knob to increase or to decrease volume.

RCL (Recall): Press this knob to switch the display between time and radio station frequency. Time display is available with the ignition turned off.

3-71

Setting Preset Stations The six numbered pushbuttons let you return to your favorite stations. You can set up to 18 stations (six AM, six FM1 and six FM2) by performing the following steps:

1. Turn the radio on. 2. Press AM FM to select AM, FM1 or FM2. 3. Tune in the desired station. 4. Press and hold one of the six numbered

pushbuttons until you hear a beep. Whenever you press that numbered pushbutton, the station you set will return.

5. Repeat the steps for each pushbutton.

Finding a Station

AM FM: Press this button to switch the display between time and radio station frequency. Time display is available with the ignition turned off.

TUNE: Turn this knob to tune in radio stations. 4 SEEK D : Press the right or the left arrow to seek to the next or to the previous station and stay there. To scan stations, press and hold one of the SEEK arrows for two seconds until you hear a beep. The radio will go to a station, play for a few seconds and flash the station frequency, then go on to the next station. Press one of the SEEK arrows again to stop scanning. To scan preset stations, press and hold one of the SEEK arrows for more than four seconds until you hear two beeps. The radio will go to the first preset station stored on the pushbuttons, play for a few seconds and flash the station frequency, then go on to the next preset station. Press one of the SEEK arrows again to stop scanning presets. This radio will seek and scan only to stations that are in the selected band and only to those with a strong signal.

3-72

Setting the Tone (Bassnreble)

AUDIO: To adjust bass and treble, press and release AUDIO repeatedly until BAS or TRE appears on the display. Then press and hold the up or the down arrow to increase or to decrease. If a station is weak or noisy, you may want to decrease the treble. To adjust bass or treble to the middle position, select BAS or TRE. Then press and hold AUDIO for more than two seconds until you hear a beep. B and a zero or T and a zero will appear on the display. To adjust both tone controls and both speaker controls to the middle position, end out of audio by waiting for the display to change to the time display. Then press and hold AUDIO for more than two seconds until you hear a beep. CEN will appear on the display. Adjusting the Speakers (Balance/Fade)

AUDIO: To adjust the balance between the right and the left speakers, press and release AUDIO until BAL appears on the display. Then press and hold the up or the down arrow to move the sound toward the right or the left speakers.

To adjust the fade between the front and the rear speakers, press and release AUDIO until FAD appears on the display. Then press and hold the up or the down arrow to move the sound toward the front or the rear speakers. To adjust balance or fade to the middle position, selecr BAL or FAD. Then press and hold AUDIO for more than two seconds until you hear a beep. L and a zero or F and a zero will appear on the display. To adjust both tone controls and both speaker controls to the middle position, end out of audio by waiting for the display to change to the time display. Then press and hold AUDIO for more than two seconds until you hear a beep. CEN will appear on the display. Fade may not be available if you have a regular cab model. Radio Messages CAL (Calibrated): Your audio system has been calibrated for your vehicle from the factory. If CAL appears on the display it means that your radio has not been configured properly for your vehicle and must be returned to the dealership for service. LOC (Locked): This message is displayed when the Theftlock@ system has locked up. Your vehicle must be returned to the dealership for service.

3-73

This system relies upon receiving specific information from these stations and will only work when the information is available. In rare cases, a radio station may broadcast incorrect information that will cause the radio features to work improperly. If this happens, contact the radio station. While you are tuned to an RDS station, the station name or the call letters will appear on the display instead of the frequency. RDS stations may also provide the time of day, a program type (PTY) for current programming and the name of the program being broadcast. XMTM Radio Satellite Service (USA Only): XMTM is a continental U.S. based satellite radio service that offers 100 coast to coast channels including music, news, sports, talk and children’s programming. XMTM provides digital quality audio and text information, including song title and artist name. A service fee is required in order to receive the XMTM service. For more information, contact XMTM at www.xmradio.com or call 1 -800-852-XMXM (9696).

Radio with CD

Base Radio Shown, Bose@ Similar

If your vehicle is equipped with the Bose@ audio system, your vehicle will have six Base@ amplified speakers. Radio Data System (RDS): Your audio system is equipped with a Radio Data System (RDS). RDS features are available for use only on FM stations that broadcast RDS information.

Seek to stations broadcasting the selected type of programming, receive announcements concerning local and national emergencies, display messages from radio stations, and seek to stations with traffic announcements.

3-74

Digital Audio Broadcast (DAB) (Canada Only): DAB is a Canadian land-based radio service that offers digital quality audio and text information including song title, artist name, traffic, weather, emergency announcements and more. Digital Audio Broadcast transmission services are currently available in Toronto, Montreal, Vancouver, Ottawa, and Windsor. In fringe areas signals may be interrupted by buildings, trees and other obstructions. Additional services will be added in the future. For current DAB coverage and other information consult the GM Canada website at www.gmcanada.com, your dealer or call 1-800-263-3777. Playing the Radio

PWR (Power): Press this knob to turn the system on and off. VOL (Volume): Turn this knob to increase or to decrease volume. AUTO VOL (Automatic Volume): With volume, your audio system will adjust automatically to make up for road and wind noise as you drive. Set the volume at the desired level. Press this button to select LOW, MEDIUM or HIGH. AVOL will appear on the display. Each higher setting will allow for more volume compensation at faster vehicle speeds. Then as you drive, automatic volume increases the volume as necessary to overcome noise at any speed. The volume

automatic

level should always sound the same to you as you drive. NONE will appear on the display if the radio cannot determine the vehicle speed. If you don’t want to use automatic volume, select OFF.

DISP (Display): Push this knob to switch the display between radio station frequency and time. Time display is available with the ignition turned off. For RDS, push this knob to change what appears on the display while using RDS. The display options are station name, RDS station frequency, PTY and the name of the program (if available). For XMTM (USA only, if your radio is equipped with XMTM Satellite Radio Service), push this knob while in XM mode to retrieve various pieces of information related to the current song or channel. By pressing and releasing this knob, you may retrieve four different categories of information: Artist, Song Title, Category or PTY, Channel NumberKhannel Name. For DAB (Canada only, if your radio is equipped with DAB), pushing this knob switches the display between channel name and PTY name. To change the default on the display, push this knob until you see the display you want, then hold the knob for two seconds. The radio will produce one beep and selected display will now be the default.

3-75

Finding a Station

BAND: Press this button to switch between AM, FM, FM2, or XMI, XM2 (USA only, if your radio is equipped with XMTM Satellite Radio Service) or DABl, DAB2 (Canada only, if your radio is equipped with DAB). The display will show your selection. TUNE: Turn this knob to choose radio stations. For DAB (Canada only, if your radio is equipped with DAB), the TUNE knob allows you to navigate the DAB frequency range. Turning this knob will tune up or tune down the range. The radio will display the letter L with a number next to it (1 through 23). Each L number refers to a frequency and there can be multiple stations contained in one frequency. It may also take a few seconds, once you have tuned to a frequency, for that frequency to gather all of the stations. Depending on how many stations are within a frequency, with every tune up or down, you may be tuning to another station or to another frequency. The display will show your selections.

4 SEEK b : Press the right or the left arrow to seek to the next or to the previous station and stay there. The radio will seek only to stations that are in the selected band and only to those with a strong signal. 4 SCAN b : Press and hold one of the arrows for more than two seconds. The radio will produce one beep. The radio will scan to a station, play for a few seconds, then go on to the next station. SCAN will be displayed. Press one of the arrows again to stop scanning. The radio will scan only to stations that are in the selected band and only to those with a strong signal. To scan preset stations, press and hold one of the arrows for more than four seconds. The radio will produce two beeps. The radio will scan to the first preset station, play for a few seconds, then go on to the next preset station. PSCN will be displayed. Press one of the arrows again or one of the pushbuttons to stop scanning. The radio will scan only to preset stations that are in the selected band and only to those with a strong signal.

3-76

Setting Preset Stations The six numbered pushbuttons let you return to your favorite stations. You can set up to 30 stations (six AM, six FMI and six FM2, six XMI and six XM2 (USA only, if your radio is equipped with the XM Satellite Radio Service) or six DAB1 and six DAB2 (Canada only, if your radio is equipped with DAB), by performing the following steps: 1. Turn the radio on. 2. Press BAND to select AM, FM1 or FM2, or

XMI,

XM2, or DABl, DAB2.

3. Tune in the desired station. 4. Press AUTO EQ to choose the bass and treble

equalization that best suits the type of station you are listening to.

5. Press and hold one of the six numbered

pushbuttons. The radio will produce one beep. Whenever you press that numbered pushbutton, the station you set will return and the bass and treble equalization that you selected will also be automatically selected for that pushbutton.