2015 Chevrolet Express Owners Manual

rear-facing child restraint would be very close to the inflating airbag. A child in a forward-facing child restraint can be seriously injured or killed if the front outboard passenger airbag inflates and the passenger seat is in a forward position. Even if the airbag switch has turned off the front outboard passenger frontal airbag, no system is fail-safe. No one can guarantee that an airbag will not deploy under some unusual circumstance, even though it is turned off.

Warning (Continued)

Secure rear-facing child restraints in a rear seat, even if the airbag is off. If you secure a forward-facing child restraint in the front outboard seat, always move the front passenger seat as far back as it will go. It is better to secure the child restraint in a rear seat.

{ Warning

If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. For example, the front outboard passenger frontal airbag could inflate even though the airbag on-off switch is turned off.

(Continued)

(Continued)

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3-46

Seats and Restraints

Warning (Continued)

To help avoid injury to yourself or others, have the vehicle serviced right away. See Airbag Readiness Light on page 5-14 for more information, including important safety information.

If the vehicle does not have a rear seat that will accommodate a rear-facing child restraint, a rear-facing child restraint should not be installed in the vehicle, even if the airbag is off. If the child restraint uses a top tether, see Lower Anchors and Tethers for Children (LATCH System) on page 3-36 for top tether anchor locations. Do not secure a child seat in a position without a top tether anchor if a national or local law requires that the top tether be anchored, or if

the instructions that come with the child restraint say that the top strap must be anchored. In Canada, the law requires that forward-facing child restraints have a top tether, and that the tether be attached. When using the lap-shoulder belt to secure the child restraint in this position, follow the instructions that came with the child restraint and the following instructions: 1. Move the seat as far back as it

will go before securing the forward-facing child restraint. When the airbag off switch has turned off the front outboard passenger frontal airbag, the off indicator in the airbag off light should light and stay lit when the vehicle is started. See Airbag On-Off Light on page 5-15.

2. Put the child restraint on

the seat.

3. Pick up the latch plate, and run the lap and shoulder portions of the vehicle safety belt through or around the restraint. The child restraint instructions will show you how.

4. Push the latch plate into the

buckle until it clicks. Position the release button on the buckle so that the safety belt could be quickly unbuckled if necessary.

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Seats and Restraints

3-47

7.

If the vehicle does not have a rear seat and the child restraint has a top tether, follow the child restraint manufacturer's instructions regarding the use of the top tether. See Lower Anchors and Tethers for Children (LATCH System) on page 3-36 for more information.

8. Before placing a child in the

child restraint, make sure it is securely held in place. To check, grasp the child restraint at the safety belt path and attempt to move it side to side and back and forth. When the child restraint is properly installed, there should be no more than 2.5 cm (1 in) of movement. To remove the child restraint, unbuckle the vehicle safety belt and let it return to the stowed position. If the top tether is attached to a top tether anchor, disconnect it.

5. Pull the shoulder belt all the way

out of the retractor to set the lock. When the retractor lock is set, the belt can be tightened but not pulled out of the retractor.

6. To tighten the belt, push down on the child restraint, pull the shoulder portion of the belt to tighten the lap portion of the belt, and feed the shoulder belt back into the retractor. When installing a forward-facing child restraint, it may be helpful to use your knee to push down on the child restraint as you tighten the belt. Try to pull the belt out of the retractor to make sure the retractor is locked. If the retractor is not locked, repeat Steps 5 and 6.

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3-48

Seats and Restraints

If you turned the airbag off with the switch, turn on the front outboard passenger airbag when you remove the child restraint from the vehicle unless the person who will be sitting there is a member of a passenger airbag risk group. See Airbag On-Off Switch on page 3-23 for more information, including important safety information.

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Storage

Storage Compartments

Storage Compartments . . . . . . . 4-1
Front Storage . . . . . . . . . . . . . . . . . 4-1

Storage Compartments { Warning

Do not store heavy or sharp objects in storage compartments. In a crash, these objects may cause the cover to open and could result in injury.

Storage

4-1

Front Storage This vehicle may have a front storage compartment. It is located at the center of the instrument panel extension, by the floor. To open the compartment, pull up on the latch. The compartment will open automatically. Storage compartments may also be included on the inside of each front door.

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4-2

Storage

2 NOTES

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Instruments and Controls

5-1

Instruments and Controls

Controls

Steering Wheel Adjustment . . . 5-2
Steering Wheel Controls . . . . . . 5-2
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Windshield Wiper/Washer . . . . . 5-3
Compass . . . . . . . . . . . . . . . . . . . . . 5-4
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Power Outlets . . . . . . . . . . . . . . . . . 5-7
Cigarette Lighter . . . . . . . . . . . . . . 5-8
Ashtrays . . . . . . . . . . . . . . . . . . . . . . 5-8

Warning Lights, Gauges, and Indicators

Warning Lights, Gauges, and

Indicators . . . . . . . . . . . . . . . . . . . . 5-9
Instrument Cluster . . . . . . . . . . . 5-10
Speedometer . . . . . . . . . . . . . . . . 5-11
Odometer . . . . . . . . . . . . . . . . . . . . 5-11
Trip Odometer . . . . . . . . . . . . . . . 5-11
Fuel Gauge . . . . . . . . . . . . . . . . . . 5-11
Engine Oil Pressure

Gauge . . . . . . . . . . . . . . . . . . . . . . 5-12

Engine Coolant Temperature

Gauge . . . . . . . . . . . . . . . . . . . . . . 5-13

Voltmeter Gauge . . . . . . . . . . . . . 5-13
Safety Belt Reminders . . . . . . . 5-14
Airbag Readiness Light . . . . . . 5-14
Airbag On-Off Light . . . . . . . . . . 5-15
Charging System Light . . . . . . 5-16
Malfunction

Indicator Lamp . . . . . . . . . . . . . 5-17

Brake System Warning

Light . . . . . . . . . . . . . . . . . . . . . . . 5-19

Antilock Brake System (ABS)

Warning Light . . . . . . . . . . . . . . 5-20
Tow/Haul Mode Light . . . . . . . . 5-21
StabiliTrak® OFF Light . . . . . . . 5-21
Traction Control System

(TCS)/StabiliTrak® Light . . . . 5-21
Tire Pressure Light . . . . . . . . . . 5-22
Engine Oil Pressure Light . . . . 5-22
Low Fuel Warning Light . . . . . . 5-23
Security Light . . . . . . . . . . . . . . . . 5-23
High-Beam On Light . . . . . . . . . 5-23
Cruise Control Light . . . . . . . . . 5-23

Information Displays

Driver Information

Center (DIC) . . . . . . . . . . . . . . . 5-24

Vehicle Messages

Vehicle Messages . . . . . . . . . . . 5-29
Battery Voltage and Charging

Messages . . . . . . . . . . . . . . . . . . 5-29
Brake System Messages . . . . 5-29
Compass Messages . . . . . . . . . 5-30
Door Ajar Messages . . . . . . . . . 5-30
Engine Cooling System

Messages . . . . . . . . . . . . . . . . . . 5-31
Engine Oil Messages . . . . . . . . 5-31
Engine Power Messages . . . . 5-32
Fuel System Messages . . . . . . 5-32
Key and Lock Messages . . . . . 5-32
Lamp Messages . . . . . . . . . . . . . 5-33
Object Detection System

Messages . . . . . . . . . . . . . . . . . . 5-33

Ride Control System

Messages . . . . . . . . . . . . . . . . . . 5-33
Airbag System Messages . . . . 5-35
Security Messages . . . . . . . . . . 5-35
Service Vehicle Messages . . . 5-35
Tire Messages . . . . . . . . . . . . . . . 5-36
Transmission Messages . . . . . 5-36
Vehicle Reminder

Messages . . . . . . . . . . . . . . . . . . 5-37

Vehicle Personalization

Vehicle Personalization . . . . . . 5-38

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5-2

Instruments and Controls

Controls

Steering Wheel Adjustment

2. Release the lever to lock the

steering wheel in place.

Do not adjust the steering wheel while driving.

Steering Wheel Controls

For vehicles with a tilt steering wheel, the lever is located on the left side of the steering column. To adjust the steering wheel: 1. Pull the lever to move the

steering wheel up or down into a comfortable position.

If available, some audio controls can be adjusted at the steering wheel. w (Next): Press to go to the next favorite radio station, track on a CD, or folder on an iPod® or USB device.

c / x (Previous/End): Press to go to the previous favorite radio station, track on a CD, or folder on an iPod® or USB device. Also press to reject an incoming call, or end a current call.

Radio To select preset or favorite radio stations: Press and release w or c / x to go to the next or previous radio station stored as a preset or favorite.

CD To select tracks on a CD: Press and release w or c / x to go to the next or previous track.

Selecting Tracks on an iPod or USB Device 1. Press and hold w or c / x

while listening to a song until the contents of the current folder display on the radio display.

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Instruments and Controls

5-3

2. Press and release w or c / x to scroll up or down the list, then press and hold w , or press ¨ to play the highlighted track.

Navigating Folders on an iPod or USB Device 1. Press and hold w or c / x

while listening to a song until the contents of the current folder display on the radio display.

2. Press and hold c / x to go back to the previous folder list.

3. Press and release w or c / x

to scroll up or down the list.

To select a folder, press and hold w , or press ¨ when the folder is highlighted. To go back further in the folder list, press and hold c / x.

b / g (Push to Talk): Press to silence the vehicle speakers only. Press again to turn the sound on. For vehicles with Bluetooth or OnStar® systems, press and hold for longer than two seconds to interact with those systems. See Bluetooth on page 7-20 and OnStar, if equipped. SRCE (Source/Voice Recognition): Press to switch between the radio and CD, and for equipped vehicles, the front auxiliary. ¨ (Seek): Press to go to the next radio station while in AM, FM, or SiriusXM®. For vehicles with a CD Player or USB port: Press ¨ to go to the next track or chapter while sourced to the CD. Press ¨ to select a track or a folder when navigating folders on an iPod or USB device.

While listening to a CD, press and hold ¨ to quickly move forward through the tracks. Release to stop on the desired track.

+ e : Press to increase volume.

− e : Press to decrease volume.

Horn Press the horn symbol in the middle of the steering wheel to sound the horn.

Windshield Wiper/Washer

The windshield wiper control is on the turn signal lever on the left side of the steering wheel. Turn the band with N on it to select the wiper speed.

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5-4

Instruments and Controls

8 (Mist): Use for a single wipe. Hold the band on z , then release. For several wipes, hold the band on z longer. 6 (Adjustable Interval Wipes): Use to adjust the delay time between wipes. Turn the band up for more frequent wipes or down for less frequent wipes. d (Low Speed): Slow wipes. a (High Speed): Fast wipes. 9 (Off): Use to turn the wipers off. When driving during the day and the wipers are activated, the head lamps automatically turn on after completing eight wipe cycles. Clear ice and snow from the wiper blades before using them. If frozen to the windshield, carefully loosen or thaw them. Damaged blades should be replaced. Windshield Washer The windshield wiper paddle is on top of the turn signal lever.

L (Washer Fluid): Push the paddle to spray washer fluid on the windshield. The wipers will clear the window and then either stop or return to the preset speed. { Warning

In freezing weather, do not use the washer until the windshield is warmed. Otherwise the washer fluid can form ice on the windshield, blocking your vision.

Compass This vehicle may have a compass in the Driver Information Center (DIC).

Compass Zone Your dealer will set the correct zone for your location. Under certain circumstances, such as during a long distance cross-country trip or moving to a new state or province, it will be necessary to compensate for

compass variance by resetting the zone through the DIC if the zone is not set correctly. Compass variance is the difference between the earth's magnetic north and true geographic north. If the compass is not set to the zone where you live, the compass may give false readings. The compass must be set to the variance zone in which the vehicle is traveling. To adjust for compass variance, use the following procedure:

Compass Variance (Zone) Procedure 1. Do not set the compass zone

when the vehicle is moving. Only set it when the vehicle is in P (Park).

Press T until PRESS V TO CHANGE COMPASS ZONE displays.

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Instruments and Controls

5-5

5.

If calibration is necessary, calibrate the compass. See “Compass Calibration Procedure” following.

Compass Calibration The compass can be manually calibrated. Only calibrate the compass in a magnetically clean and safe location, such as an open parking lot, where driving the vehicle in circles is not a danger. It is suggested to calibrate away from tall buildings, utility wires, manhole covers, or other industrial structures, if possible. If CAL should ever appear in the DIC display, the compass should be calibrated. If the DIC display does not show a heading, for example, N for North, or the heading does not change after making turns, there may be a strong magnetic field interfering with the compass. Such interference may be caused by a magnetic CB or cell phone antenna mount, a magnetic emergency light, magnetic

note pad holder, or any other magnetic item. Turn off the vehicle, move the magnetic item, then turn on the vehicle and calibrate the compass. To calibrate the compass, use the following procedure:

Compass Calibration Procedure 1. Before calibrating the compass, make sure the compass zone is set to the variance zone in which the vehicle is located. See “Compass Variance (Zone) Procedure” earlier in this section. Do not operate any switches such as window, climate controls, seats, etc. during the calibration procedure.

2. Press T until PRESS V TO

CALIBRATE COMPASS displays.

3. Press V to start the compass

calibration.

2. Find the vehicle's current

location and variance zone number on the map. Zones 1 through 15 are available.

3. Press V to scroll through and

select the appropriate variance zone.

4. Press 3 until the vehicle heading, for example, N for North, is displayed in the DIC.

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5-6

Instruments and Controls

4. The DIC will display

CALIBRATING: DRIVE IN CIRCLES. Drive the vehicle in tight circles at less than 8 km/h (5 mph) to complete the calibration. The DIC will display CALIBRATION COMPLETE for a few seconds when the calibration is complete. The DIC display will then return to PRESS V TO CALIBRATE COMPASS.

Clock The clock can be set with either the radio turned on or off. AM-FM Radio To set the time: 1. Press H until the hour begins flashing on the display. Press this button a second time and the minutes begin flashing on display.

Press H a third time and the 12HR or 24HR time format begins flashing.

2. While either the hour or the

minutes are flashing, turn the f knob, on the upper right side of the radio, clockwise or counterclockwise to increase or decrease the time. While the 12HR or 24HR time format is flashing, turn the f knob clockwise or counterclockwise to select the default time settings.

3. Press H again until the clock

display stops flashing to set the currently displayed time; otherwise, the flashing stops after five seconds and the current time displayed is automatically set.

Radio with CD/MP3
To set the time and date: 1. Press H and the HR, MIN, MM, DD, YYYY (hour, minute, month, day, and year) display.

2. Press the softkey under any one of the tabs to be changed. Every time the softkey is pressed again, the time or the date if selected, increases by one. Another way to increase the time or date is to press ¨ SEEK or \ FWD (forward).

3. To decrease, press © SEEK or s REV. Turn the f knob, on the upper right side of the radio, to adjust the selected setting.

Changing the Time and Date Default Settings To change the time or date default settings: 1. Press H and then the softkey under the forward arrow that is currently displayed on the radio screen until the time 12H (hour) and 24H (hour), and the date MM/DD (month and day) and DD/MM (day and month) are displayed.

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2. Press the softkey under the

desired option.

3. Press H again to apply the selected default, or let the screen time out.

Power Outlets The accessory power outlets can be used to plug in electrical equipment, such as a cell phone or an MP3
player. The vehicle may have two accessory power outlets on the instrument panel. Remove the cover to access and replace when not in use. Certain power accessory plugs may not be compatible to the accessory power outlet and could overload vehicle or adapter fuses. If a problem is experienced, see your dealer.

Instruments and Controls

5-7

{ Warning

{ Caution

Power is always supplied to the outlets. Do not leave electrical equipment plugged in when the vehicle is not in use because the vehicle could catch fire and cause injury or death.

{ Caution

Leaving electrical equipment plugged in for an extended period of time while the vehicle is off will drain the battery. Always unplug electrical equipment when not in use and do not plug in equipment that exceeds the maximum 20 amp rating.

When adding electrical equipment, be sure to follow the proper installation instructions included with the equipment. See Add-On Electrical Equipment on page 9-54.

Hanging heavy equipment from the power outlet can cause damage not covered by the vehicle warranty. The power outlets are designed for accessory power plugs only, such as cell phone charge cords.

Power Outlet 110 Volt Alternating Current This power outlet can be used to plug in electrical equipment that uses a maximum limit of 150 watts. The 110 volt power outlet is on the instrument panel. An indicator light on the outlet turns on to show it is in use. The light comes on when the ignition is in ON/RUN, equipment requiring less than 150 watts is plugged into the outlet, and no system fault is detected.

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5-8

Instruments and Controls

The indicator light does not come on when the ignition is in LOCK/OFF or if the equipment is not fully seated into the outlet. If equipment is connected using more than 150 watts or a system fault is detected, a protection circuit shuts off the power supply and the indicator light turns off. To reset the circuit, unplug the item and plug it back in or turn the Retained Accessory Power (RAP) off and then back on. See Retained Accessory Power (RAP) on page 9-19. The power outlet is not designed for the following, and may not work properly if they are plugged in: . Equipment with high initial peak

wattage, such as compressor-driven refrigerators and electric power tools.

. Other equipment requiring an

extremely stable power supply, such as

microcomputer-controlled electric blankets and touch sensor lamps.

. Medical equipment.

Cigarette Lighter If equipped with a cigarette lighter, to heat push it in all the way and let go. When it is ready for use, it will pop back out by itself. Do not use the lighter to plug in accessory devices. Use the power outlets provided.

{ Caution

Holding a cigarette lighter in while it is heating does not let the lighter back away from the heating element when it is hot. Damage from overheating can occur to the lighter or heating element, or a fuse could be blown. Do not hold a cigarette lighter in while it is heating.

Ashtrays If equipped with a removable ashtray, it can be placed into the front floor console cupholder. Open cover to use.

{ Caution If papers, pins, or other flammable items are put in the ashtray, hot cigarettes or other smoking materials could ignite them and possibly damage the vehicle. Never put flammable items in the ashtray.

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Instruments and Controls

5-9

Warning Lights, Gauges, and Indicators Warning lights and gauges can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gauges could prevent injury.

Warning lights come on when there could be a problem with a vehicle function. Some warning lights come on briefly when the engine is started to indicate they are working. Gauges can indicate when there could be a problem with a vehicle function. Often gauges and warning lights work together to indicate a problem with the vehicle.

When one of the warning lights comes on and stays on while driving, or when one of the gauges shows there may be a problem, check the section that explains what to do. Waiting to do repairs can be costly and even dangerous.

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5-10

Instruments and Controls

Instrument Cluster

English Shown, Metric Similar

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If the vehicle has a diesel engine, see the Duramax diesel supplement for more information.

Speedometer The speedometer shows the vehicle speed in kilometers per hour (km/h) and miles per hour (mph).

Odometer The odometer shows how far the vehicle has been driven, in either kilometers or miles.

Trip Odometer The trip odometer shows how far the vehicle has been driven since the trip odometer was last reset. The trip odometer is accessed and reset through the Driver Information Center (DIC). See Driver Information Center (DIC) on page 5-24.

Fuel Gauge

Metric

English

Instruments and Controls

5-11

The fuel gauge, when the ignition is on, indicates how much fuel is left in the vehicle fuel tank. An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on. The gauge first indicates empty before the vehicle is out of fuel, and the fuel tank should be refueled soon. Listed are four situations customers might experience with the fuel gauge. None of these indicate a problem with the fuel gauge: . At the gas station, the fuel pump

shuts off before the gauge reads full. It takes a little more or less fuel to fill up than the fuel gauge indicated. For example, the gauge 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.

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5-12

Instruments and Controls

The gauge moves a little while turning a corner or speeding up. The gauge does not go back to empty when the ignition is turned off.

If the vehicle has a diesel engine, see the Duramax diesel supplement.

Engine Oil Pressure Gauge

English

The oil pressure gauge shows the engine oil pressure in psi (pounds per square inch) or kPa (kilopascals) when the engine is running. 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 other problem causing low oil pressure.

Metric

low can also damage the

{ Caution Lack of proper engine oil maintenance can damage the engine. Driving with the engine oil engine. The repairs would not be covered by the vehicle warranty. Check the oil level as soon as possible. Add oil if required, but if the oil level is within the operating range and the oil pressure is still low, have the vehicle serviced. Always follow the maintenance schedule for changing engine oil.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- 7707481) - 2015 - CRC - 4/30/14

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Engine Coolant Temperature Gauge

Metric

Instruments and Controls

5-13

See Engine Overheating on page 10-18.

Voltmeter Gauge

English

This gauge shows the engine coolant temperature. It also provides an indicator of how hard the vehicle is working. During a majority of the operation, the gauge will read 100°C (210°F) or less. If the vehicle is pulling a load or going up hills, it is normal for the temperature to fluctuate and approach the 122°C (250°F) mark. If the gauge reaches the 125°C (260°F) mark, it indicates that the cooling system is working beyond its capacity.

When the engine is not running, but the ignition is on, this gauge shows the battery's state of charge in DC volts. When the engine is running, the gauge shows the condition of the charging system. Readings between the low and high warning zones indicate the normal operating range.

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5-14

Instruments and Controls

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. The vehicle can be only driven for a short time with the reading in either warning zone. If it must be driven, 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.

Safety Belt Reminders

Safety Belt Reminder Light There is a safety belt reminder light on the instrument cluster.

When the vehicle is started, this light flashes and a chime may come on to remind the driver to fasten their safety belt. Then the light stays on solid until the belt is buckled. This cycle may continue several times if the driver remains or becomes unbuckled while the vehicle is moving. If the driver safety belt is buckled, neither the light nor the chime comes on.

Airbag Readiness Light This light shows if there is an electrical problem with the airbag system. The system check includes the airbag sensor(s), passenger sensing system (if equipped), the pretensioners (if equipped), the airbag modules, the wiring, and the crash sensing and diagnostic module. For more information on the airbag system, see Airbag System on page 3-17.

The airbag readiness light comes on for several seconds when the vehicle is started. If the light does not come on then, have it fixed immediately.

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Instruments and Controls

5-15

{ Warning

If the airbag readiness light stays on after the vehicle is started or comes on while driving, it means the airbag system might not be working properly. The airbags in the vehicle might not inflate in a crash, or they could even inflate without a crash. To help avoid injury, have the vehicle serviced right away.

If there is a problem with the airbag system, a Driver Information Center (DIC) message may also come on. See Airbag System Messages on page 5-35.

Airbag On-Off Light When the front outboard passenger airbag is manually turned off using the airbag on-off switch on the instrument panel, if equipped, the indicator light OFF or the off symbol will come on and stay on as a

reminder that the airbag has been turned off. This light will go off when the airbag has been turned on. See Airbag On-Off Switch on page 3-23
for more information, including important safety information.

United States

Canada and Mexico

{ Warning

If the front outboard passenger frontal airbag is turned off for a person who is not in a risk group identified by the national government, that person will not have the extra protection of an airbag. In a crash, the airbag will not be able to inflate and help protect the person sitting there.

(Continued)

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5-16

Instruments and Controls

Warning (Continued)

Warning (Continued)

Charging System Light

To help avoid injury to yourself or others, have the vehicle serviced right away. See Airbag Readiness Light on page 5-14 for more information, including important safety information.

If the word ON or the on symbol is lit, it means that the front outboard passenger frontal airbag is enabled, and may inflate. See Airbag On-Off Switch on page 3-23 for more information, including important safety information.

Do not turn off the front outboard passenger frontal airbag unless the person sitting there is in a risk group identified by the national government. See Airbag On-Off Switch on page 3-23 for more information, including important safety information.

{ Warning

If the airbag readiness light ever comes on and stays on, it means that something may be wrong with the airbag system. For example, the front outboard passenger frontal airbag could inflate even though the airbag on-off switch is turned off.

(Continued)

This light comes on briefly when the ignition key is turned to START, but the engine is not running, as a check to show it is working. If it does not, have the vehicle serviced by your dealer. The light should go out once the engine starts. If it stays on, or comes on while driving, there could be a problem with the charging system. A charging system message in the Driver Information Center (DIC) can also appear. See Battery Voltage and Charging Messages on page 5-29 for more information. This light could indicate that there are problems with a generator drive belt, or that there is an electrical problem. Have it

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checked right away. If the vehicle must be driven a short distance with the light on, turn off accessories, such as the radio and air conditioner.

Malfunction Indicator Lamp A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors the operation of the vehicle to ensure emissions are at acceptable levels, helping to maintain a clean environment. The malfunction indicator lamp comes on when the vehicle is placed in ON/RUN, as a check to show it is working. If it does not, have the vehicle serviced by your dealer. See Ignition Positions on page 9-14.

If the malfunction indicator lamp comes on while the engine is running, this indicates that the OBD II system has detected a problem and diagnosis and service might be required. Malfunctions often are indicated by the system before any problem is apparent. Being aware of the light can prevent more serious damage to the vehicle. This system also assists the service technician in correctly diagnosing any malfunction.

{ Caution

If the vehicle is continually driven with this light on, the emission controls might not work as well, the vehicle fuel economy might not be as good, and the engine might not run as smoothly. This could lead to costly repairs that might not be covered by the vehicle warranty.

{ Caution

Modifications made to the engine, transmission, exhaust, intake, or fuel system of the vehicle or the replacement of the original tires with other than those of the same Tire Performance Criteria (TPC) can affect the vehicle's emission controls and can cause this light to come on. Modifications to these systems could lead to costly repairs not covered by the vehicle warranty. This could also result in a failure to pass a required Emission Inspection/Maintenance test. See Accessories and Modifications on page 10-2.

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Instruments and Controls

This light may come on during a malfunction in one of two ways: Light Flashing: A misfire condition has been detected. A misfire increases vehicle emissions and could damage the emission control system on the vehicle. Diagnosis and service might be required. To prevent more serious damage to the vehicle: . Reduce vehicle speed. . Avoid hard accelerations. . Avoid steep uphill grades.

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

If the light continues to flash, find a safe place to stop and park the vehicle. Turn the vehicle off, wait at least 10 seconds, and restart the engine. If the light is still flashing, follow the previous steps and see your dealer for service as soon as possible.

Light On Steady: An emission control system malfunction has been detected on the vehicle. Diagnosis and service might be required. The following may correct an emission control system malfunction: . Check that the fuel cap is fully

installed. See Filling the Tank on page 9-42. The diagnostic system may be able to determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap could allow fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed may turn the light off.

. Check that good quality fuel is used. Poor fuel quality causes the engine not to run as efficiently as designed and may cause stalling after start-up, stalling when the vehicle is changed into gear, misfiring, hesitation on acceleration, or stumbling on acceleration. These conditions might go away once the engine is warmed up. If this occurs, change the fuel brand used. It may require at least one full tank of the proper fuel to turn the light off.

See Fuel on page 9-39. If the light remains on, your dealer can check the vehicle. The dealer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that might have developed.

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Emissions Inspection and Maintenance Programs Depending on where you live, your vehicle may be required to participate in an emission control system inspection and maintenance program. For the inspection, the emission system test equipment will likely connect to the vehicle's Data Link Connector (DLC).

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the ignition is turned to ON/RUN while the engine is off. See your dealer for assistance in verifying proper operation of the malfunction indicator lamp. The OBD II (On-Board Diagnostics) system determines that critical emission control systems have not been completely diagnosed. The vehicle would be considered not ready for inspection. This can happen if the 12-volt battery has recently been replaced or run down.

Brake System Warning Light The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need to be working. If the warning light comes on, there could be a brake problem. Have the brake system inspected right away.

The DLC is under the instrument panel to the left of the steering wheel. See your dealer if assistance is needed. The vehicle may not pass inspection if:

The malfunction indicator lamp is on with the engine running, or if the light does not come on when

The diagnostic system is designed to evaluate critical emission control systems during normal driving. This can take several days of routine driving. If this has been done and the vehicle still does not pass the inspection for lack of OBD II system readiness, your dealer can prepare the vehicle for inspection.

Metric

English

This light should come on briefly when ignition key is turned to ON/ RUN. If it does not come on, have it fixed so it will be ready to warn if there is a problem.

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Instruments and Controls

When the ignition is on, the brake system warning light also comes on when the parking brake is set. See Parking Brake on page 9-29 for more information. The light stays on if the parking brake does not fully release. If it stays on after the parking brake is fully released, it means the vehicle has a brake problem. If the light comes on while driving, pull off the road and stop carefully. The pedal might be harder to push, or the pedal might go closer to the floor. It could take longer to stop. If the light is still on, have the vehicle towed for service. See Towing the Vehicle on page 10-78.

{ Warning

The brake system might not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to a

(Continued)

Warning (Continued)

crash. If the light is still on after the vehicle has been pulled off the road and carefully stopped, have the vehicle towed for service.

Antilock Brake System (ABS) Warning Light

For vehicles with the Antilock Brake System (ABS), this light comes on briefly when the engine is started.

If it does not, have the vehicle serviced by your dealer. If the system is working normally the indicator light then goes off. If the ABS light stays on, turn the ignition off. If the light comes on while driving, stop as soon as it is safely possible and turn the ignition off. Then start the engine again to reset the system. If the ABS light stays on, or comes on again while driving, the vehicle needs service. If the regular brake system warning light is not on, the vehicle still has brakes, but not antilock brakes. If the regular brake system warning light is also on, the vehicle does not have antilock brakes and there is a problem with the regular brakes. See Brake System Warning Light on page 5-19.

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Tow/Haul Mode Light

For vehicles with the Tow/Haul Mode feature, this light comes on when the Tow/Haul Mode has been activated. See Tow/Haul Mode on page 9-27.

StabiliTrak® OFF Light

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This light comes on when the StabiliTrak system is turned off. If StabiliTrak is off, the Traction Control System (TCS) is also off. If the StabiliTrak and TCS are off, the system does not assist in controlling the vehicle. Turn on the TCS and the StabiliTrak systems and the warning light turns off. See Traction Control/Electronic Stability Control on page 9-29.

Traction Control System (TCS)/StabiliTrak® Light

If the light does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off. If the light is on and not flashing, the TCS and potentially the StabiliTrak system have been disabled. A DIC message may display. Check the DIC messages to determine which feature(s) is no longer functioning and whether the vehicle requires service. If the indicator/warning light is on and flashing, the TCS and/or the StabiliTrak system is actively working. See Traction Control/Electronic Stability Control on page 9-29.

This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer.

This light comes on briefly when the engine is started.

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Instruments and Controls

Tire Pressure Light

For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS.

When the Light Is On Steady This indicates that one or more of the tires are significantly underinflated. A Driver Information Center (DIC) tire pressure message may also display. See Tire Messages on page 5-36. Stop as soon as possible, and inflate the tires to the pressure value shown on the Tire and Loading Information label. See Tire Pressure on page 10-50.

When the Light Flashes First and Then Is On Steady If the light flashes for about a minute and then stays on, there may be a problem with the TPMS. If the problem is not corrected, the light will come on at every ignition cycle. See Tire Pressure Monitor Operation on page 10-52.

Engine Oil Pressure Light

low can also damage the

{ Caution Lack of proper engine oil maintenance can damage the engine. Driving with the engine oil engine. The repairs would not be covered by the vehicle warranty. Check the oil level as soon as possible. Add oil if required, but if the oil level is within the operating range and the oil pressure is still low, have the vehicle serviced. Always follow the maintenance schedule for changing engine oil.

This light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the light comes on and stays on, it means that oil is not flowing through the engine properly. The vehicle could be low on oil and might have some other system problem. See your dealer.

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Low Fuel Warning Light

Security Light

High-Beam On Light

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The security light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off. If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation on page 2-11.

This light comes on when the high-beam headlamps are in use. See Headlamp High/Low-Beam Changer on page 6-2.

Cruise Control Light

This light comes on when the cruise control is set. This light goes out when the cruise control is canceled. See Cruise Control on page 9-32.

English Shown, Metric Similar

This light comes on for a few seconds when the ignition is turned on as a check to indicate it is working. If it does not come on, have it fixed. The low fuel warning light comes on and a chime sounds when the vehicle is low on fuel. The light turns off when fuel is added to the fuel tank. See Driver Information Center (DIC) on page 5-24.

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Instruments and Controls

Information Displays

Driver Information Center (DIC) This vehicle has a DIC. All messages will appear in the DIC display at the bottom of the instrument cluster. The DIC comes on when the ignition is on. After a short delay, the DIC will display the information that was last displayed before the engine was turned off. The DIC displays trip, fuel, and vehicle system information, and warning messages if a system problem is detected. If the vehicle has these features, the DIC also displays the compass direction and the outside air temperature when viewing the trip

and fuel information. The compass direction appears on the top right corner of the DIC display. The outside air temperature automatically appears in the bottom right corner of the DIC display. If there is a problem with the system that controls the temperature display, the numbers will be replaced with dashes. If this occurs, have the vehicle serviced by your dealer. If the vehicle has a diesel engine, see the Duramax diesel supplement. DIC Operation and Displays The DIC has different displays which can be accessed by pressing the DIC buttons on the instrument panel, next to the instrument cluster.

DIC Buttons

The buttons are the trip/fuel, vehicle information, customization, and set/ reset buttons. The button functions are detailed in the following pages. 3 (Trip/Fuel): Press this button to display the odometer, trip odometers, fuel range, average economy, fuel used, timer, average speed, and digital tachometer.

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T (Vehicle Information): Press this button to display the oil life, rear park assist, units, tire pressure readings for vehicles with the Tire Pressure Monitor System (TPMS), engine hours, Tire Pressure Monitor System (TPMS) programming for vehicles with the TPMS and without a Remote Keyless Entry (RKE) transmitter, and compass zone and compass calibration on vehicles with this feature. U (Customization): Press this button to customize the feature settings on the vehicle. See Vehicle Personalization on page 5-38 for more information. V (Set/Reset): Press this button to set or reset certain functions and to turn off or acknowledge messages on the DIC.

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Trip/Fuel Menu Items 3 (Trip/Fuel): Press this button to scroll through the following menu items:

Odometer Press 3 until XX km (mi) displays. This display shows the distance the vehicle has been driven in either kilometers (km) or miles (mi).

Trip Odometers Press 3 until A or B displays. This display shows the current distance traveled in either kilometers (km) or miles (mi) since the last reset for each trip odometer. Both trip odometers can be used at the same time. Each trip odometer can be reset to zero separately by pressing V while the desired trip odometer is displayed.

The trip odometer has a feature called the retro-active reset. This can be used to set the trip odometer to the number of kilometers (miles) driven since the ignition was last turned on. This can be used if the trip odometer is not reset at the beginning of the trip. To use the retro-active reset feature, press and hold V for at least four seconds. The trip odometer will display the number of kilometers (km) or miles (mi) driven since the ignition was last turned on and the vehicle was moving. Once the vehicle begins moving, the trip odometer will accumulate mileage. For example, if the vehicle was driven 8 km (5 miles) before it is started again, and then the retro-active reset feature is activated, the display will show 8 km (5 miles). As the vehicle begins moving, the display will then increase to 8.1 km (5.1 miles), 8.2 km (5.2 miles), etc.

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Instruments and Controls

If the retro-active reset feature is activated after the vehicle is started, but before it begins moving, the display will show the number of kilometers (km) or miles (mi) that were driven during the last ignition cycle.

Fuel Range Press 3 until FUEL RANGE displays. This display shows the approximate number of remaining kilometers (km) or miles (mi) the vehicle can be driven without refueling. The display will show LOW if the fuel level is low. The fuel range estimate is based on an average of the fuel economy over recent driving history and the amount of fuel remaining in the fuel tank. This estimate will change if driving conditions change. For example, if driving in traffic and making frequent stops, this display may read one number, but if the

vehicle is driven on a freeway, the number may change even though the same amount of fuel is in the fuel tank. This is because different driving conditions produce different fuel economies. Generally, freeway driving produces better fuel economy than city driving. If the vehicle is low on fuel, the FUEL LEVEL LOW message will be displayed. See Fuel System Messages on page 5-32.

Average Economy Press 3 until AVG ECONOMY displays. This display shows the approximate average liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number is calculated based on the number of L/100 km (mpg) recorded since the last time this menu item was reset. To reset AVG ECONOMY, press and hold V. The display will return to zero.

Fuel Used Press 3 until FUEL USED displays. This display shows the number of liters (L) or gallons (gal) of fuel used since the last reset of this menu item. To reset the fuel used information, press and hold V while FUEL USED is displayed.

Timer Press 3 until TIMER displays. This display can be used as a timer.

To start the timer, press V while TIMER is displayed. 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 (99:59:59) after which the display will return to zero.

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To stop the timer, press V briefly while TIMER is displayed. To reset the timer to zero, press and hold V while TIMER is displayed.

Average Speed Press 3 until AVERAGE SPEED displays. This display shows the average speed of the vehicle in kilometers per hour (km/h) or miles per hour (mph). This average is calculated based on the various vehicle speeds recorded since the last reset of this value. To reset the value, press and hold V. The display will return to zero.

Digital Tachometer Press 3 until Tachometer ##00 RPM displays. This display shows the engine speed in revolutions per minute (RPM).

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Blank Display This display shows no information. Vehicle Information Menu Items T (Vehicle Information): Press this button to scroll through the following menu items:

Oil Life

Press T until OIL LIFE REMAINING displays. This display shows an estimate of the oil's remaining useful life. If you see 99% OIL LIFE REMAINING on the display, that means 99% of the current oil life remains. The engine oil life system will alert you to change the oil on a schedule consistent with your driving conditions.

When the remaining oil life is low, the CHANGE ENGINE OIL SOON message will appear on the display. See Engine Oil Messages on page 5-31. You should change the oil as soon as possible. See Engine Oil on page 10-6. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended in the Maintenance Schedule in this manual. See Maintenance Schedule on page 11-3. Remember, you must reset the OIL LIFE yourself after each oil change. It will not reset itself. Also, be careful not to reset the OIL LIFE accidentally at any time other than when the oil has just been changed. It cannot be reset accurately until the next oil change. To reset the engine oil life system, see Engine Oil Life System on page 10-8.

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Instruments and Controls

Park Assist If the vehicle has the Rear Parking Assist (RPA) system, press T until PARK ASSIST displays. This display allows the system to be turned on or off. Once in this display, press to select between ON or OFF. The RPA system automatically turns back on after each vehicle start. When the RPA system is turned off and the vehicle is shifted out of P (Park), the DIC will display the PARK ASSIST OFF message as a reminder that the system has been turned off. See Object Detection System Messages on page 5-33 and Parking Assist on page 9-35.

Units

Press T until UNITS displays. This display allows you to select between metric or English units of measurement. Once in this display, press V to select between METRIC or ENGLISH units.

Tire Pressure If the vehicle has the Tire Pressure Monitor System (TPMS), the pressure for each tire can be viewed in the DIC. The tire pressure will be shown in either kilopascals (kPa) or pounds per square inch (psi). Press T until the DIC displays FRONT TIRES PSI (kPa) LEFT ## RIGHT ##. Press T again until the DIC displays REAR TIRES PSI (kPa) LEFT ## RIGHT ##. If a low tire pressure condition is detected by the system while driving, a message advising you to check the pressure in a specific tire will appear in the display. See Tire Pressure on page 10-50 and Tire Messages on page 5-36. If the tire pressure display shows dashes instead of a value, there may be a problem with the vehicle. If this consistently occurs, see your dealer for service.

Engine Hours

Press T until ENGINE HOURS displays. This display shows the total number of hours the engine has run.

Relearn Tire Positions The vehicle may have this display. To access this display, the vehicle must be in P (Park). If the vehicle has the Tire Pressure Monitor System (TPMS), after rotating the tires or after replacing a tire or sensor, the system must re-learn the tire positions. To re-learn the tire positions, see Tire Pressure Monitor System on page 10-51. See Tire Inspection on page 10-56, Tire Rotation on page 10-56 and Tire Messages on page 5-36.

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Change Compass Zone The vehicle may have this feature. To change the compass zone through the DIC, see Compass on page 5-4.

Calibrate Compass The vehicle may have this feature. The compass can be manually calibrated. To calibrate the compass through the DIC, see Compass on page 5-4.

Blank Display This display shows no information.

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Vehicle Messages Messages displayed on the DIC indicate the status of the vehicle or some action may be needed to correct a condition. Multiple messages may appear one after another. The messages that do not require immediate action can be acknowledged and cleared by pressing V (Set/Reset).

The messages that require immediate action cannot be cleared until that action is performed. All messages should be taken seriously and clearing the message does not correct the problem. The following are the possible messages and some information about them. If the vehicle has a diesel engine, see the Duramax diesel supplement.

Battery Voltage and Charging Messages

SERVICE BATTERY CHARGING SYSTEM On some vehicles, this message displays if there is a problem with the battery charging system. Under certain conditions, the charging system light may also turn on in the instrument cluster. See Charging System Light on page 5-16. Driving with this problem could drain the battery. Turn off all unnecessary accessories. Have the electrical system checked as soon as possible. See your dealer.

Brake System Messages

SERVICE BRAKE SYSTEM This message displays along with the brake system warning light if there is a problem with the brake system. See Brake System Warning Light on page 5-19.

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Instruments and Controls

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 as soon as possible. See your dealer.

Compass Messages

CALIBRATING: DRIVE IN CIRCLES This message displays when calibrating the compass. Drive the vehicle in circles at less than 8 km/h (5 mph) to complete the calibration. See Compass on page 5-4 for more information. CALIBRATION COMPLETE This message displays when the compass calibration is complete. See Compass on page 5-4 for more information.

Door Ajar Messages

CARGO DOOR OPEN This message displays and a chime sounds if the cargo door is open while the ignition is in ON/RUN. Turn off the vehicle and check the cargo door. Restart the vehicle and check for the message on the DIC display. DRIVER DOOR OPEN This message displays and a chime sounds if the driver door is not fully closed and the vehicle is in a drive gear. Stop and turn off the vehicle, check the door for obstructions, and close the door again. Check to see if the message still appears on the DIC. LEFT REAR DOOR OPEN On some vehicles, this message displays and a chime sounds if the driver side rear door is not fully closed and the vehicle is in a drive gear. Stop and turn off the vehicle, check the door for obstructions, and

close the door again. Check to see if the message still appears on the DIC. PASSENGER DOOR OPEN This message displays and a chime sounds if the passenger door is not fully closed and the vehicle is in a drive gear. Stop and turn off the vehicle, check the door for obstructions, and close the door again. Check to see if the message still appears on the DIC. RIGHT REAR DOOR OPEN On some vehicles, this message displays and a chime sounds if the passenger side rear door is not fully closed and the vehicle is in a drive gear. Stop and turn off the vehicle, check the door for obstructions, and close the door again. Check to see if the message still appears on the DIC.

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Engine Cooling System Messages

ENGINE HOT A/C (Air Conditioning) OFF This message displays when the engine coolant becomes hotter than the normal operating temperature. See Engine Coolant Temperature Gauge on page 5-13. To avoid added strain on a hot engine, the air conditioning compressor automatically turns off. When the coolant temperature returns to normal, the air conditioning compressor turns back on. You can continue to drive the vehicle. If this message continues to appear, have the system repaired by your dealer as soon as possible to avoid damage to the engine.

ENGINE OVERHEATED IDLE ENGINE This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. See Engine Coolant Temperature Gauge on page 5-13. ENGINE OVERHEATED STOP ENGINE This message displays and a chime sounds if the engine cooling system reaches unsafe temperatures for operation. Stop and turn off the vehicle as soon as it is safe to do so to avoid severe damage. This message clears when the engine has cooled to a safe operating temperature.

Engine Oil Messages

CHANGE ENGINE OIL SOON