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the vehicle.
(cid:129) Use of non-GM approved hood deflectors may adversely affect performance of the system.
(cid:129) Keep the path under the front seats clear of objects to help circulate the air inside of the vehicle more effectively. (cid:129) Outside air is drawn into the
vehicle, unless recirculation mode is selected.
2008 - Pontiac G8 Owner Manual
Driving and Operating
8-1
Fuel Fuel ..................................8-32
Gasoline Octane ...............8-33
Gasoline Specifications .....8-33
California Fuel ..................8-33
Additives ...........................8-34
Fuels in Foreign Countries ........................8-34
Filling the Tank .................8-35
Filling a Portable Fuel Container ........................8-36Driving and Operating
Starting and Operating Your Vehicle New Vehicle Break-In .........8-2
Ignition Positions ................8-2
Retained Accessory Power (RAP) .....................8-3
Starting the Engine .............8-4
Engine Coolant Heater .......8-5
Automatic Transmission Operation ..........................8-6
Parking Brake .....................8-9
Shifting Into Park (Automatic Transmission) ..................8-10
Shifting Out of Park ..........8-11
Parking Over Things That Burn ........................8-11
Engine Exhaust .................8-12
Running the Vehicle While Parked ..................8-12Driving Your Vehicle Defensive Driving ..............8-13
Drunk Driving ....................8-13
Control of a Vehicle ..........8-14
Braking .............................8-14
Antilock Brake System (ABS) .................8-15
Electronic Stability Program ..........................8-16
Steering ............................8-19
Off-Road Recovery ............8-20
Passing .............................8-21
Loss of Control .................8-21
Driving at Night .................8-22
Driving in Rain and on Wet Roads ......................8-23
Before Leaving on a Long Trip ........................8-24
Highway Hypnosis .............8-24
Hill and Mountain Roads ....8-24
Winter Driving ...................8-25
If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow ..........................8-27
Rocking Your Vehicle to Get It Out .......................8-28
Loading the Vehicle ..........8-282008 - Pontiac G8 Owner Manual
8-2
Driving and Operating
Starting and Operating Your Vehicle New Vehicle Break-In Notice: Your vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: (cid:129) Do not drive at any one
constant speed, fast or slow, for the first 500 miles (805 km). Do not make full-throttle starts. Avoid downshifting to brake or slow the vehicle. (cid:129) During the first 600 miles
(1 000 km), avoid using more than moderate acceleration in lower gears and avoid vehicle speeds above 68 mph (110 km/h).
(cid:129) Between the first 600 miles (1 000 km) and 3,000 miles (5 000 km), heavy acceleration in lower gears can be used. Vehicle speeds above 68 mph (110 km/h) should be limited to five minutes per use.
(cid:129) Avoid making hard stops for the
first 200 miles (322 km) or so. During this time the new brake linings are not yet broken in. Hard stops with new linings can mean premature wear and earlier replacement. Follow this breaking-in guideline every time you get new brake linings.
(cid:129) Do not tow a trailer during
break-in. See Towing a Trailer on page 9-85 for the trailer towing capabilities of your vehicle and more information. Following break-in, engine speed and load can be gradually increased.
Ignition Positions
The ignition switch has four different positions. Notice: Using a tool to force the key from the ignition switch could cause damage or break the key. Use the correct key and turn the key only with your hand. Make sure the key is in all the way. If none of this works, then your vehicle needs service. To shift out of P (Park), turn the ignition to ON/RUN and apply the brake pedal.
2008 - Pontiac G8 Owner Manual
Driving and Operating
8-3
Retained Accessory Power (RAP) These vehicle accessories may be used for up to 10 minutes after the engine is turned off. (cid:129) Audio System (cid:129) Power Windows The power windows will continue to work for up to 10 minutes or until any door is opened. The radio will work when the key is in ON/RUN or ACC/ACCESSORY. Once the key is turned from ON/RUN to LOCK/OFF, the radio will continue to work for 10 minutes or until the driver’s door is opened.
C (ON/RUN): The ignition switch stays in this position when the engine is running. This position can be used to operate the electrical accessories, including the ventilation fan and 12 volt power outlet, as well as to display some warning and indicator lights.
The battery could be drained if you leave the key in the ACC/ACCESSORY or ON/RUN position with the engine off. You may not be able to start the vehicle if the battery is allowed to drain for an extended period of time. D (START): This position starts the engine. When the engine starts, release the key. The ignition switch will return to ON/RUN for normal driving.
A warning tone will sound when the driver door is opened when the ignition is still in ACC/ACCESSORY and the key is in the ignition.
A (LOCK/OFF): This is the only position from which you can remove the key. This locks the steering wheel, ignition and automatic transmission. On vehicles with an automatic transmission, the shift lever must be in P (Park) to turn the ignition switch to the LOCK/OFF position. The ignition switch can bind in the LOCK/OFF position with your wheels turned off center. If this happens, move the steering wheel from right to left while turning the key to ACC/ACCESSORY. If this doesn’t work, then the vehicle needs service. B (ACC/ACCESSORY): This position provides power to some of the electrical accessories. It unlocks the steering wheel and ignition. The transmission is also unlocked in this position on automatic transmission vehicles. To move the key from ACC/ACCESSORY to LOCK/OFF, push in the key and then turn it to LOCK/OFF.
2008 - Pontiac G8 Owner Manual
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Driving and Operating
Starting the Engine Move the shift lever to P (Park) or N (Neutral). The engine will not start in any other position. To restart when you are already moving, use N (Neutral) only. Notice: Do not try to shift to P (Park) if your vehicle is moving. If you do, you could damage the transmission. Shift to P (Park) only when your vehicle is stopped. 1. With your foot off the accelerator
pedal, turn the ignition key to START. When the engine starts, let go of the key. The idle speed will go down as your engine gets warm. Do not race the engine immediately after starting it. Operate the engine and transmission gently to allow the oil to warm up and lubricate all moving parts.
The vehicle has a Computer-Controlled Cranking System. This feature assists in starting the engine and protects components. If the ignition key is turned to the START position, and then released when the engine begins cranking, the engine will continue cranking for a few seconds or until the vehicle starts. If the engine does not start and the key is held in START for many seconds, cranking will be stopped after 15 seconds to prevent cranking motor damage. To prevent gear damage, this system also prevents cranking if the engine is already running. Engine cranking can be stopped by turning the ignition switch to ACC/ACCESSORY or LOCK/OFF.
Notice: Cranking the engine for long periods of time, by returning the key to the START position immediately after cranking has ended, can overheat and damage the cranking motor, and drain the battery. Wait at least 15 seconds between each try, to let the cranking motor cool down. 2. If the engine does not start
after 5-10 seconds, especially in very cold weather (below 0°F or −18°C), it could be flooded with too much gasoline. Try pushing the accelerator pedal all the way to the floor and holding it there as you hold the key in START for up to a maximum of 15 seconds. Wait at least 15 seconds between each try, to allow the cranking motor to cool down.
2008 - Pontiac G8 Owner Manual
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8-5
3. Plug it into a normal, grounded
110-volt AC outlet.
{ CAUTION
Plugging the cord into an ungrounded outlet could cause an electrical shock. Also, the wrong kind of extension cord could overheat and cause a fire. You could be seriously injured. Plug the cord into a properly grounded three-prong 110-volt AC outlet. If the cord will not reach, use a heavy-duty three-prong extension cord rated for at least 15 amps.
4. Before starting the engine, be
sure to unplug and store the cord as it was before to keep it away from moving engine parts. If you do not it could be damaged.
When the engine starts, let go of the key and accelerator. If the vehicle starts briefly but then stops again, do the same thing. This clears the extra gasoline from the engine. Do not race the engine immediately after starting it. Operate the engine and transmission gently until the oil warms up and lubricates all moving parts.
Notice: The engine is designed to work with the electronics in the vehicle. If you add electrical parts or accessories, you could change the way the engine operates. Before adding electrical equipment, check with your dealer/retailer. If you do not, the engine might not perform properly. Any resulting damage would not be covered by the vehicle warranty.
Engine Coolant Heater The engine coolant heater, if available, can help in cold weather conditions at or below 0°F (−18°C) for easier starting and better fuel economy during engine warm-up. Plug in the coolant heater at least four hours before starting your vehicle. An internal thermostat in the plug-end of the cord will prevent engine coolant heater operation at temperatures above 0°F (−18°C). To Use The Engine Coolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the
electrical cord. The electrical cord is located on the driver side of the engine compartment, behind the air cleaner for V8 models. The electrical cord is located on the passenger side of the engine compartment, behind the engine compartment fuse block for V6 models.
2008 - Pontiac G8 Owner Manual
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Driving and Operating
The length of time the heater should remain plugged in depends on several factors. Ask a dealer/retailer in the area where you will be parking the vehicle for the best advice on this.
Automatic Transmission Operation The shift lever is located on the center console between the front seats.
There are several different positions for the shift lever. When the position of the shift lever is changed,
a message is shown in the Driver Information Center (DIC). The selected gear is magnified in the DIC, and changes according to the shift lever’s movement. There are also messages for Sport Shift Mode, Normal Shift Mode and Driver Shift Control. P (Park): This position locks the rear wheels. It is the best position to use when the engine is started because the vehicle cannot move easily.
{ CAUTION
It is dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake firmly set. The vehicle can roll. Do not leave the vehicle when the engine is running unless you have to. If you have left the
(Continued)
CAUTION (Continued)
engine running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when you are on fairly level ground, always set the parking brake and move the shift lever to P (Park). See Shifting Into Park (Automatic Transmission) on page 8-10. If you are pulling a trailer, see Towing a Trailer on page 9-85.
Make sure the shift lever is fully in P (Park) before starting the engine. The vehicle has an automatic transmission shift lock control system. Fully apply the brake pedal first and then press the shift lever button before shifting from P (Park) when the ignition key is in ON/RUN or ACC/ACCESSORY. If you cannot shift out of P (Park),
2008 - Pontiac G8 Owner Manual
N (Neutral): In this position, the engine does not connect with the wheels. To restart when the vehicle is already moving, use N (Neutral) only.
{ CAUTION
Shifting into a drive gear while the engine is running at high speed is dangerous. Unless your foot is firmly on the brake pedal, the vehicle could move very rapidly. You could lose control and hit people or objects. Do not shift into a drive gear while the engine is running at high speed.
Notice: Shifting out of P (Park) or N (Neutral) with the engine running at high speed may damage the transmission. The repairs would not be covered by the vehicle warranty. Be sure the engine is not running at high speed when shifting the vehicle.
Driving and Operating
8-7
D (Drive): This position is for normal driving. It provides the best fuel economy from the vehicle. If more power is needed for passing, and the vehicle is: (cid:129) Going less than 35 mph
(55 km/h), push the accelerator pedal about halfway down.
(cid:129) Going about 35 mph (55 km/h) or
more, push the accelerator all the way down. The transmission will shift down to a lower gear and have more power.
Downshifting the transmission in slippery road conditions could result in skidding, see Skidding under Loss of Control on page 8-21. Notice: Spinning the tires or holding the vehicle in one place on a hill using only the accelerator pedal may damage the transmission. If you are stuck, do not spin the tires. When stopping on a hill, use the brakes to hold the vehicle in place.
ease pressure on the shift lever and push the shift lever all the way into P (Park) while maintaining brake application. Then press the shift lever button and move the shift lever into another gear. See Shifting Out of Park on page 8-11. Notice: Shifting to R (Reverse) while the vehicle is moving forward could damage the transmission. The repairs would not be covered by the vehicle warranty. Shift to R (Reverse) only after the vehicle is stopped. R (Reverse): Use this gear to back up.
At low vehicle speeds, R (Reverse) can also be used to rock the vehicle back and forth to get out of snow, ice, or sand without damaging the transmission. See If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow on page 8-27 for additional information.
2008 - Pontiac G8 Owner Manual
8-8
Driving and Operating
Sport Shift Mode The automatic transmission has a Sport Shift Mode. When you are in the Sport Shift Mode the vehicle will still shift automatically. The transmission may remain in a gear longer than it would in the normal driving mode based on braking, throttle input, and vehicle lateral acceleration. To use this feature, move the shift lever over from D (Drive) to the right quadrant. The Sport Shift message in the DIC displays. If the shift lever is not moved forward or rearward, the vehicle remains in sport mode.
Performance Mode Lift Foot Mode Within Sport Shift Mode there is a further performance feature called Performance Mode Lift Foot (PMLF) Mode. The feature is activated automatically when sports oriented driving is detected, based on cornering and on/off throttle
application. PMLF allows the transmission to hold the current gear instead of upshifting when the throttle is lifted.
Driver Shift Control (DSC) Notice: If you drive your vehicle at high RPMs without upshifting while using DSC, you could damage the vehicle. Always upshift when necessary while using DSC. The automatic transmission has DSC that allows gear changes similar to a manual transmission. To use this feature: 1. Move the shift lever over from D (Drive) to the right quadrant. The Sport Shift message in the DIC displays.
2. To enter DSC, press the shift
lever forward to upshift or rearward to downshift. The Active Select On message in the DIC will come on.
The DIC will indicate the requested gear range when moving the shift lever forward or rearward. While using DSC, the vehicle has firmer shifting and increased performance. This can be used for sport driving or when climbing or descending hills, to stay in gear longer, or to down shift for more power or engine braking. The transmission will only allow the driver to shift into gears appropriate for the vehicle speed and engine Revolutions Per Minute (RPM). The transmission will not automatically shift to the next lower gear if the engine RPM is too high. If shifting is prevented for any reason, the currently selected gear will flash multiple times, indicating that the transmission has not shifted gears. While in DSC, the transmission automatically downshifts when the vehicle comes to a stop.
2008 - Pontiac G8 Owner Manual
Downshifting will only occur when the driver’s foot is applied to the brake. Driver Shift Control can be switched on to override the feature and gain complete control of shifts if desired.
Parking Brake
To set the parking brake, pull up on the parking brake handle. If the ignition is in the ON/RUN position, the brake system warning light will come on. See Brake System Warning Light on page 4-16.
Driving and Operating
8-9
To release the parking brake: 1. Hold the brake pedal down. 2. Pull the parking brake handle up
until you can press the release button.
3. Hold the release button in as you
move the brake handle all the way down.
Notice: Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts. Make sure that the parking brake is fully released and the brake warning light is off before driving. Driving with the park brake applied will cause a warning chime to sound and the Park Brake message to appear in the DIC. The message will remain on until: (cid:129) (cid:129) If you are towing a trailer and you are parking on a hill, see Towing a Trailer on page 9-85.
the park brake is released the vehicle comes to a stop.
When accelerating the vehicle from a stop in snowy and icy conditions, 1st, 2nd or 3rd gear starts can be selected from a standing start. This is useful for gentle acceleration on slippery surfaces. To return to Normal Shift mode, slide the shift lever over from the right quadrant to the left into D (Drive). A Normal Shift message will be displayed in the DIC. Normal Shift Mode is recommended for normal or freeway driving, as it provides optimum fuel economy.
Powertrain Braking For vehicles with a 6 speed automatic transmission, there is an additional feature known as Powertrain Braking. When driving on steep descents where frequent braking is required, the vehicle will automatically downshift to provide engine braking assistance. This feature also reduces brake temperatures and wear.
2008 - Pontiac G8 Owner Manual
8-10
Driving and Operating
Shifting Into Park (Automatic Transmission)
{ CAUTION
It can be dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake firmly set. The vehicle can roll. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when you are on fairly level ground, use the steps that follow. If you are pulling a trailer, see Towing a Trailer on page 9-85.
Use this procedure to shift into P (Park): 1. Hold the brake pedal down and
set the parking brake. See Parking Brake on page 8-9
for more information.2. Move the shift lever into P (Park)
by holding in the button on the shift lever and pushing the lever all the way toward the front of the vehicle.
3. Turn the ignition key to
LOCK/OFF.
4. Remove the key and take it
with you. If you can leave your vehicle with the ignition key in your hand, your vehicle is in P (Park).
Leaving Your Vehicle With the Engine Running
{ CAUTION
It can be dangerous to leave the vehicle with the engine running. The vehicle could move suddenly if the shift lever is not fully in P (Park) with the parking brake firmly set. And, if you leave the vehicle with the engine running, it could overheat and even catch fire. You or others could be injured. Do not leave the vehicle with the engine running.
If you have to leave your vehicle with the engine running, be sure your vehicle is in P (Park) and your parking brake is firmly set before you leave it. After you have moved the shift lever into P (Park), hold the brake pedal down.
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Driving and Operating
8-11
If you still cannot move the shift lever from P (Park), see Shift Lock Manual Release on page 9-84.
Parking Over Things That Burn
{ CAUTION
Things that can burn could touch hot exhaust parts under your vehicle and ignite. Do not park over papers, leaves, dry grass, or other things that can burn.
Then, see if you can move the shift lever away from P (Park) without first pushing the button. If you can, it means that the shift lever was not fully locked into P (Park).
Torque Lock If you are parking on a hill and you do not shift your automatic transmission into P (Park) properly, the weight of the vehicle may put too much force on the parking pawl in the transmission. You may find it difficult to pull the shift lever out of P (Park). This is called torque lock. To prevent torque lock, set the parking brake and then shift into P (Park) properly before you leave the driver seat. To find out how, see “Shifting Into Park” previously in the section. When you are ready to drive, move the shift lever out of P (Park) before you release the parking brake.
If torque lock does occur, you may need to have another vehicle push yours a little uphill to take some of the pressure from the parking pawl in the transmission, so you can pull the shift lever out of P (Park).
Shifting Out of Park To shift out of P (Park): 1. Apply the brake pedal. 2. Press the shift lever button. 3. Move the shift lever to the
desired position.
If you still are unable to shift out of P (Park): 1. Fully release the shift lever
button.
2. Hold the brake pedal down and
press the shift lever button again.
3. Move the shift lever to the
desired position.
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8-12
Driving and Operating
Engine Exhaust
CAUTION (Continued)
{ CAUTION Engine exhaust can kill. It contains the gas carbon monoxide (CO), which you cannot see or smell. It can cause unconsciousness and death. You might have exhaust coming in if: (cid:129) The exhaust system sounds
strange or different.
(cid:129) Your vehicle gets rusty
underneath.
(cid:129) Your vehicle was damaged in
a collision.
(Continued)
(cid:129) Your vehicle was damaged
when driving over high points on the road or over road debris.
(cid:129) Repairs were not done
correctly.
(cid:129) Your vehicle or the exhaust system has been modified improperly.
If you ever suspect exhaust is coming into your vehicle: (cid:129) Drive it only with all the
windows down to blow out any CO.
(cid:129) Have your vehicle fixed
immediately.
Running the Vehicle While Parked It is better not to park with the engine running. But if you ever have to, here are some things to know.
{ CAUTION
Idling the engine with the climate control system off could allow dangerous exhaust into your vehicle. See the earlier caution under Engine Exhaust on page 8-12. Also, idling in a closed-in place can let deadly carbon monoxide (CO) into your vehicle even if the climate control fan is at the highest setting. One place this can happen is a garage. Exhaust — with CO — can come in easily. NEVER park in a garage with the engine running. Also see “If You Are Caught in a Blizzard” under Winter Driving on page 8-25.
2008 - Pontiac G8 Owner Manual
Driving Your Vehicle Defensive Driving Defensive driving means “always expect the unexpected.” The first step in driving defensively is to wear your safety belt, see Safety Belts on page 1-5.
{ CAUTION
Assume that other road users (pedestrians, bicyclists, and other drivers) are going to be careless and make mistakes. Anticipate what they might do and be ready. In addition: (cid:129) Allow enough following
distance between you and the driver in front of you.
(cid:129) Focus on the task of driving. Driver distraction can cause collisions resulting in injury or possible death. These simple defensive driving techniques could save your life.
Driving and Operating
8-13
Drunk Driving
{ CAUTION
Drinking and then driving is very dangerous. Your reflexes, perceptions, attentiveness, and judgment can be affected by even a small amount of alcohol. You can have a serious — or even fatal — collision if you drive after drinking. Do not drink and drive or ride with a driver who has been drinking. Ride home in a cab; or if you are with a group, designate a driver who will not drink.
Death and injury associated with drinking and driving is a global tragedy. Alcohol affects four things that anyone needs to drive a vehicle: judgment, muscular coordination, vision, and attentiveness.
{ CAUTION
It can be dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. Do not leave your vehicle when the engine is running unless you have to. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure your vehicle will not move, even when you are on fairly level ground, always set the parking brake and move the shift lever to PARK (P).
Follow the proper steps to be sure your vehicle will not move. See Shifting Into Park (Automatic Transmission) on page 8-10. If you are parking on a hill and if you are pulling a trailer, also see Towing a Trailer on page 9-85.
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Driving and Operating
Police records show that almost 40 percent of all motor vehicle-related deaths involve alcohol. In most cases, these deaths are the result of someone who was drinking and driving. In recent years, more than 17,000 annual motor vehicle-related deaths have been associated with the use of alcohol, with about 250,000 people injured. For persons under 21, it is against the law in every U.S. state to drink alcohol. There are good medical, psychological, and developmental reasons for these laws. The obvious way to eliminate the leading highway safety problem is for people never to drink alcohol and then drive. Medical research shows that alcohol in a person’s system can make crash injuries worse, especially injuries to the brain, spinal cord, or heart.
This means that when anyone who has been drinking — driver or passenger — is in a crash, that person’s chance of being killed or permanently disabled is higher than if the person had not been drinking.
Control of a Vehicle The following three systems help to control your vehicle while driving — brakes, steering, and accelerator. At times, as when driving on snow or ice, it is easy to ask more of those control systems than the tires and road can provide. Meaning, you can lose control of your vehicle. Adding non-dealer/non-retailer accessories can affect your vehicle’s performance. See Accessories and Modifications on page 9-3.
Braking See Brake System Warning Light on page 4-16. Braking action involves perception time and reaction time. First, you have to decide to push on the brake pedal. That is perception time. Then you have to bring up your foot and do it. That is reaction time. Average reaction time is about three-fourths of a second. But that is only an average. It might be less with one driver and as long as two or three seconds or more with another. Age, physical condition, alertness, coordination, and eyesight all play a part. So do alcohol, drugs, and frustration. But even in three-fourths of a second, a vehicle moving at 60 mph (100 km/h) travels 66 feet (20 m). That could be a lot of distance in an emergency, so keeping enough space between your vehicle and others is important.
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Driving and Operating
8-15
If your vehicle’s engine ever stops while you are driving, brake normally but do not pump the brakes. If you do, the pedal could get harder to push down. If the engine stops, you will still have some power brake assist. But you will use it when you brake. Once the power assist is used up, it can take longer to stop and the brake pedal will be harder to push. Adding non-dealer/non-retailer accessories can affect your vehicle’s performance. See Accessories and Modifications on page 9-3.
Antilock Brake System (ABS) Your vehicle has the Antilock Brake System (ABS), an advanced electronic braking system that will help prevent a braking skid. When you start the engine and begin to drive away, ABS will check itself. You might hear a momentary motor or clicking noise while this test is going on, and you might even notice that the brake pedal moves a little. This is normal.
If there is a problem with ABS, this warning light will stay on. See Antilock Brake System (ABS) Warning Light on page 4-17. Let us say the road is wet and you are driving safely. Suddenly, an animal jumps out in front of you.
And, of course, actual stopping distances vary greatly with the surface of the road, whether it is pavement or gravel; the condition of the road, whether it is wet, dry, or icy; tire tread; the condition of the brakes; the weight of the vehicle; and the amount of brake force applied. Avoid needless heavy braking. Some people drive in spurts — heavy acceleration followed by heavy braking — rather than keeping pace with traffic. This is a mistake. The brakes might not have time to cool between hard stops. The brakes will wear out much faster if you do a lot of heavy braking. If you keep pace with the traffic and allow realistic following distances, you will eliminate a lot of unnecessary braking. That means better braking and longer brake life.
2008 - Pontiac G8 Owner Manual
8-16
Driving and Operating
You slam on the brakes and continue braking. Here is what happens with ABS: A computer senses that wheels are slowing down. If one of the wheels is about to stop rolling, the computer will separately work the brakes at each wheel. ABS can change the brake pressure faster than any driver could. The computer is programmed to make the most of available tire and road conditions. This can help you steer around the obstacle while braking hard. As you brake, the computer keeps receiving updates on wheel speed and controls braking pressure accordingly.
Remember: ABS does not change the time you need to get your foot up to the brake pedal or always decrease stopping distance. If you get too close to the vehicle in front of you, you will not have time to apply the brakes if that vehicle suddenly slows or stops. Always leave enough room up ahead to stop, even though you have ABS.
Using ABS Do not pump the brakes. Just hold the brake pedal down firmly and let antilock work for you. You might hear the antilock pump or motor operate, and feel the brake pedal pulsate, but this is normal.
Braking in Emergencies With ABS, you can steer and brake at the same time. In many emergencies, steering can help you more than even the very best braking.
Electronic Stability Program The vehicle has the Electronic Stability Program (ESP®) that assists with directional control of the vehicle in difficult driving conditions by reducing engine power and applying the brakes to individual wheels. This is especially useful in slippery road conditions. The system operates if it senses that the rear wheels are spinning too much, are beginning to lose traction or if it senses that the vehicle is not moving in its intended direction. It turns on automatically every time the vehicle is started.
When ESP is working, this light and the STABILITY CONTROL ASSISTANCE message will come
2008 - Pontiac G8 Owner Manual
Driving and Operating
8-17
on and the ESP CTRL message will be displayed at the bottom of the DIC. The STABILITY CONTROL ASSISTANCE message will remain on while the system is working until the 3 button is pressed to display the trip computer. The ESP CTRL message stays on at the bottom of the DIC while the system is working. You may feel or hear the system working, but this is normal.
When this light and the STABILITY CTRL OFF message is on and the ESP OFF message is displayed, the system will not limit wheel spin.
Adjust your driving accordingly. See DIC Warnings and Messages on page 4-27 for more information. ESP is automatically enabled whenever you start your vehicle. To limit wheel spin, especially in slippery road conditions, you should always leave the system enabled. You can turn ESP off if you ever need to. It is recommended to leave the system on for normal driving conditions, but it may be necessary to turn the system off if your vehicle is stuck in sand, mud, ice or snow, and you want to rock your vehicle to attempt to free it. It may also be necessary to turn off the system when driving in extreme off-road conditions where high wheel spin is required. See If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow on page 8-27.
2008 - Pontiac G8 Owner Manual
The ESP button is located in front of the transmission gear selector lever.
To turn the system off or on, press and release the ESP button. The DIC will briefly display the appropriate message and then return to the trip computer display.
8-18
Driving and Operating
When this light and the STABILITY CTRL OFF message is on briefly and the ESP OFF message is displayed at the bottom of the DIC, the system will not limit wheel spin. If the ESP OFF message is always displayed at the bottom of the DIC when the button is pressed to turn the system on or off, the system needs repair. Contact your dealer/retailer.
The system is on when this light and the STABILITY CTRL ON message is displayed briefly on the DIC.
ESP Operation ESP limits wheel spin by reducing engine power to the wheels and by applying brakes to each individual wheel as necessary. The ESP system is enabled automatically when you start your vehicle, and it will activate the STABILITY CONTROL ASSISTANCE light and the ESP CTRL message on the DIC if it senses that any of the wheels are spinning or beginning to lose traction while driving. Notice: of one axle to spin excessively while the ESC/TCS, ABS and Brake warning lights and the SERVICE ESC and/or SERVICE TRACTION messages are displayed, you could damage
If you allow the wheel(s)
the differential. The repairs would not be covered by your warranty. Reduce engine power and do not spin the wheel(s) excessively while these lights and this message are displayed. The traction control system may activate on dry or rough roads or under conditions such as heavy acceleration while turning or abrupt upshifts/downshifts of the transmission. When this happens, you may notice a reduction in acceleration, or may hear a noise or vibration. This is normal. Adding non-dealer/non-retailer accessories can affect your vehicle’s performance. See Accessories and Modifications on page 9-3 for more information.
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Steering Power Steering If you lose power steering assist because the engine stops or the system is not functioning, you can steer but it will take much more effort.
Steering Tips It is important to take curves at a reasonable speed. A lot of the “driver lost control” accidents mentioned on the news happen on curves. Here is why: Experienced driver or beginner, each of us is subject to the same laws of physics when driving on curves. The traction of the tires against the road surface makes it possible for the vehicle to change its path when you turn the front wheels. If there is no traction, inertia will keep the vehicle going in the
same direction. If you have ever tried to steer a vehicle on wet ice, you will understand this. Traction in a curve depends on the condition of the tires and the road surface, the angle at which the curve is banked, and your speed. While in a curve, speed is the one factor you can control. Suppose you are steering through a sharp curve. Then you suddenly accelerate. Both control systems — steering and acceleration — have to do their work where the tires meet the road. Adding the sudden acceleration can demand too much of those places. You can lose control. What should you do if this ever happens? Ease up on the accelerator pedal, steer the vehicle the way you want it to go, and slow down.
Speed limit signs near curves warn that you should adjust your speed. Of course, the posted speeds are based on good weather and road conditions. Under less favorable conditions you will want to go slower. If you need to reduce speed when approaching a curve, do it before you enter the curve, while the front wheels are straight ahead. Try to adjust the speed so you can drive through the curve. Maintain a reasonable, steady speed. Wait to accelerate until you are out of the curve, and then accelerate gently into the straightaway. Adding non-dealer/non-retailer accessories can affect your vehicle’s performance. See Accessories and Modifications on page 9-3.
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Driving and Operating
Steering in Emergencies There are times when steering can be more effective than braking. For example, you come over a hill and find a truck stopped in your lane, or a car suddenly pulls out from nowhere, or a child darts out from between parked cars and stops right in front of you. You can avoid these problems by braking — if you can stop in time. But sometimes you cannot; there is not room. That is the time for evasive action — steering around the problem. Your vehicle can perform very well in emergencies like these. First apply the brakes. See Braking on page 8-14. It is better to remove as much speed as you can from a possible collision. Then steer around the problem, to the left or right depending on the space available.
Off-Road Recovery Your vehicle’s right wheels can drop off the edge of a road onto the shoulder while driving.
An emergency like this requires close attention and a quick decision. If you are holding the steering wheel at the recommended 9 and 3 o’clock positions, you can turn it a full 180 degrees very quickly without removing either hand. But you have to act fast, steer quickly, and just as quickly straighten the wheel once you have avoided the object. The fact that such emergency situations are always possible is a good reason to practice defensive driving at all times and wear safety belts properly.
If the level of the shoulder is only slightly below the pavement, recovery should be fairly easy. Ease off the accelerator and then, if there is nothing in the way, steer so that your vehicle straddles the edge of the pavement. Turn the steering wheel 3 to 5 inches (about one-eighth turn) until the right front tire contacts the pavement edge. Then turn the steering wheel to go straight down the roadway.
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Loss of Control Let us review what driving experts say about what happens when the three control systems — brakes, steering, and acceleration — do not have enough friction where the tires meet the road to do what the driver has asked. In any emergency, do not give up. Keep trying to steer and constantly seek an escape route or area of less danger.
Skidding In a skid, a driver can lose control of the vehicle. Defensive drivers avoid most skids by taking reasonable care suited to existing conditions, and by not overdriving those conditions. But skids are always possible.
The three types of skids correspond to your vehicle’s three control systems. In the braking skid, the wheels are not rolling. In the steering or cornering skid, too much speed or steering in a curve causes tires to slip and lose cornering force. And in the acceleration skid, too much throttle causes the driving wheels to spin. If your vehicle starts to slide, ease your foot off the accelerator pedal and quickly steer the way you want the vehicle to go. If you start steering quickly enough, your vehicle may straighten out. Always be ready for a second skid if it occurs. Of course, traction is reduced when water, snow, ice, gravel, or other material is on the road. For safety, you want to slow down and adjust your driving to these conditions. It is important to slow down on slippery surfaces because stopping distance is longer and vehicle control more limited.
Passing Passing another vehicle on a two-lane road can be dangerous. To reduce the risk of danger while passing: (cid:129) Look down the road, to the sides,
and to crossroads for situations that might affect a successful pass. If in doubt, wait.
(cid:129) Watch for traffic signs, pavement
markings, and lines that could indicate a turn or an intersection. Never cross a solid or double-solid line on your side of the lane.
(cid:129) Do not get too close to the
vehicle you want to pass. Doing so can reduce your visibility. (cid:129) Wait your turn to pass a slow
vehicle.
(cid:129) When you are being passed,
ease to the right.
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Driving and Operating
While driving on a surface with reduced traction, try your best to avoid sudden steering, acceleration, or braking, including reducing vehicle speed by shifting to a lower gear. Any sudden changes could cause the tires to slide. You might not realize the surface is slippery until your vehicle is skidding. Learn to recognize warning clues — such as enough water, ice, or packed snow on the road to make a mirrored surface — and slow down when you have any doubt. Remember: Any Antilock Brake System (ABS) helps avoid only the braking skid.
Driving at Night Night driving is more dangerous than day driving because some drivers are likely to be impaired — by alcohol or drugs, with night vision problems, or by fatigue. Night driving tips include: (cid:129) Drive defensively. (cid:129) Do not drink and drive. (cid:129) Reduce headlamp glare by adjusting the inside rearview mirror.
(cid:129) Slow down and keep more space
between you and other vehicles because headlamps can only light up so much road ahead.
(cid:129) Watch for animals.
(cid:129) When tired, pull off the road. (cid:129) Do not wear sunglasses. (cid:129) Avoid staring directly into approaching headlamps.
(cid:129) Keep the windshield and all glass
on your vehicle clean — inside and out.
(cid:129) Keep your eyes moving,
especially during turns or curves. No one can see as well at night as in the daytime. But, as we get older, these differences increase. A 50-year-old driver might need at least twice as much light to see the same thing at night as a 20-year-old.
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There is no hard and fast rule about hydroplaning. The best advice is to slow down when the road is wet.
Other Rainy Weather Tips Besides slowing down, other wet weather driving tips include: (cid:129) Allow extra following distance. (cid:129) Pass with caution. (cid:129) Keep windshield wiping
equipment in good shape.
(cid:129) Keep the windshield washer fluid
reservoir filled.
(cid:129) Have good tires with proper tread
depth. See Tires on page 9-39.
(cid:129) Turn off cruise control,
if equipped.
Driving in Rain and on Wet Roads Rain and wet roads can reduce vehicle traction and affect your ability to stop and accelerate. Always drive slower in these types of driving conditions and avoid driving through large puddles and deep-standing or flowing water.
{ CAUTION
Wet brakes can cause crashes. They might not work as well in a quick stop and could cause pulling to one side. You could lose control of the vehicle. After driving through a large puddle of water or a car/vehicle wash, lightly apply the brake pedal until the brakes work normally.
(Continued)
CAUTION (Continued)
Flowing or rushing water creates strong forces. Driving through flowing water could cause your vehicle to be carried away. If this happens, you and other vehicle occupants could drown. Do not ignore police warnings and be very cautious about trying to drive through flowing water.
Hydroplaning Hydroplaning is dangerous. Water can build up under your vehicle’s tires so they actually ride on the water. This can happen if the road is wet enough and you are going fast enough. When your vehicle is hydroplaning, it has little or no contact with the road.
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Driving and Operating
Highway Hypnosis Always be alert and pay attention to your surroundings while driving. If you become tired or sleepy, find a safe place to park your vehicle and rest. Other driving tips include: (cid:129) Keep the vehicle well ventilated. (cid:129) Keep interior temperature cool. (cid:129) Keep your eyes moving — scan the road ahead and to the sides.
(cid:129) Check the rearview mirror and
vehicle instruments often.
Before Leaving on a Long Trip To prepare your vehicle for a long trip, consider having it serviced by your dealer/retailer before departing. Things to check on your own include: (cid:129) Windshield Washer Fluid: Reservoir full? Windows clean — inside and outside?
(cid:129) Wiper Blades: In good shape? (cid:129) Fuel, Engine Oil, Other Fluids:
All levels checked?
(cid:129) Lamps: Do they all work and are
lenses clean?
(cid:129) Tires: Are treads good? Are tires
inflated to recommended pressure?
(cid:129) Weather and Maps: Safe to
travel? Have up-to-date maps?
Hill and Mountain Roads Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include: (cid:129) Keep the vehicle serviced
and in good shape.
(cid:129) Check all fluid levels and brakes,
tires, cooling system, and transmission.
(cid:129) Going down steep or long hills,
shift to a lower gear.
{ CAUTION
If you do not shift down, the brakes could get so hot that they would not work well. You would then have poor braking or even none going down a hill. You could crash. Shift down to let the engine assist the brakes on a steep downhill slope.
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{ CAUTION
Coasting downhill in N (Neutral) or with the ignition off is dangerous. The brakes will have to do all the work of slowing down and they could get so hot that they would not work well. You would then have poor braking or even none going down a hill. You could crash. Always have the engine running and the vehicle in gear when going downhill.
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(cid:129) Stay in your own lane. Do not swing wide or cut across the center of the road. Drive at speeds that let you stay in your own lane.
Winter Driving Here are some tips for winter driving: (cid:129) Have your vehicle in good shape
for winter.
(cid:129) Top of hills: Be alert — something could be in your lane (stalled car, accident).
(cid:129) You might want to put winter emergency supplies in your vehicle.
(cid:129) Pay attention to special road
signs (falling rocks area, winding roads, long grades, passing or no-passing zones) and take appropriate action.
Include an ice scraper, a small brush or broom, a supply of windshield washer fluid, a rag, some winter outer clothing, a small shovel, a flashlight, a red cloth, and reflective warning triangles. And, if you will be driving under severe conditions, include a small bag of sand, a piece of old carpet, or a couple of burlap bags to help provide traction. Be sure you properly secure these items in your vehicle. Also see Tires on page 9-39.
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Driving and Operating
Driving on Snow or Ice Most of the time, those places where the tires meet the road probably have good traction. However, if there is snow or ice between the tires and the road, you can have a very slippery situation. You have a lot less traction, or grip, and need to be very careful. What is the worst time for this? Wet ice. Very cold snow or ice can be slick and hard to drive on. But wet ice can be even more trouble because it can offer the least traction of all. You can get wet ice when it is about freezing, 32°F (0°C), and freezing rain begins to fall. Try to avoid driving on wet ice until salt and sand crews can get there. Whatever the condition — smooth ice, packed, blowing, or loose snow — drive with caution. Accelerate gently. Try not to break the fragile traction. If you accelerate too fast, the drive wheels will spin and polish the surface under the tires even more.
The Antilock Brake System (ABS) improves your vehicle’s stability when you make a hard stop on a slippery road. Even though you have ABS, begin stopping sooner than you would on dry pavement. See Antilock Brake System (ABS) on page 8-15. (cid:129) Allow greater following distance
on any slippery road.
(cid:129) Watch for slippery spots.
The road might be fine until you hit a spot that is covered with ice. On an otherwise clear road, ice patches can appear in shaded areas where the sun cannot reach, such as around clumps of trees, behind buildings, or under bridges. Sometimes the surface of a curve or an overpass can remain icy when the surrounding roads are clear. If you see a patch of ice ahead of you, brake before you are on it. Try not to brake while you are actually on the ice, and avoid sudden steering maneuvers.
If You Are Caught in a Blizzard If you are stopped by heavy snow, you could be in a serious situation. You should probably stay with your vehicle unless you know for sure that you are near help and you can hike through the snow. Here are some things to do to summon help and keep yourself and your passengers safe: (cid:129) Turn on the hazard warning
flashers.
(cid:129) Tie a red cloth to your vehicle to
alert police that you have been stopped by the snow.
(cid:129) Put on extra clothing or wrap a
blanket around you. If you do not have blankets or extra clothing, make body insulators from newspapers, burlap bags, rags, floor mats — anything you can wrap around yourself or tuck under your clothing to keep warm.
You can run the engine to keep warm, but be careful.
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{ CAUTION
Snow can trap exhaust gases under your vehicle. This can cause deadly CO (carbon monoxide) gas to get inside. CO could overcome you and kill you. You cannot see it or smell it, so you might not know it is in your vehicle. Clear away snow from around the base of your vehicle, especially any that is blocking the exhaust pipe. And check around again from time to time to be sure snow does not collect there. Open a window just a little on the side of the vehicle that is away from the wind. This will help keep CO out.
Run your engine only as long as you must. This saves fuel. When you run the engine, make it go a little faster than just idle. That is, push the accelerator slightly. This uses less fuel for the heat that you get and it keeps the battery charged. You will need a well-charged battery to restart the vehicle, and possibly for signaling later on with the headlamps. Let the heater run for a while. Then, shut the engine off and close the window almost all the way to preserve the heat. Start the engine again and repeat this only when you feel really uncomfortable from the cold. But do it as little as possible. Preserve the fuel as long as you can. To help keep warm, you can get out of the vehicle and do some fairly vigorous exercises every half hour or so until help comes.
If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. See Rocking Your Vehicle to Get It Out on page 8-28.
{ CAUTION
If you let your vehicle’s tires spin at high speed, they can explode, and you or others could be injured. The vehicle can overheat, causing an engine compartment fire or other damage. Spin the wheels as little as possible and avoid going above 35 mph (55 km/h) as shown on the speedometer.
For information about using tire chains on the vehicle, see Tire Chains on page 9-62.
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Loading the Vehicle It is very important to know how much weight the vehicle can carry. This weight is called the vehicle capacity weight and includes the weight of all occupants, cargo and all nonfactory-installed options. Two labels on the vehicle show how much weight it may properly carry, the Tire and Loading Information label and the Certification label.
{ CAUTION
Do not load the vehicle any heavier than the Gross Vehicle Weight Rating (GVWR), or either the maximum front or rear Gross Axle Weight Rating (GAWR). If you do, parts on the vehicle can break, and it can change the way your vehicle handles. These could cause you to lose control and crash. Also, overloading can shorten the life of the vehicle.
Rocking Your Vehicle to Get It Out First, turn the steering wheel left and right to clear the area around the front wheels. Turn off any stability system. See Electronic Stability Program on page 8-16. Then shift back and forth between REVERSE (R) and a forward gear, spinning the wheels as little as possible. To prevent transmission wear, wait until the wheels stop spinning before shifting gears. Release the accelerator pedal while you shift, and press lightly on the accelerator pedal when the transmission is in gear. By slowly spinning the wheels in the forward and reverse directions, you will cause a rocking motion that could free your vehicle. If that does not get your vehicle out after a few tries, it might need to be towed out. If your vehicle does need to be towed out, see Towing Your Vehicle on page 9-84.
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number of occupant seating positions (A), and the maximum vehicle capacity weight (B) in kilograms and pounds. The Tire and Loading Information label also shows the tire size of the original equipment tires (C) and the recommended cold tire inflation pressures (D). For more information on tires and inflation see Tires on page 9-39 and Inflation - Tire Pressure on page 9-46. There is also important loading information on the Certification label. It tells you the Gross Vehicle Weight Rating (GVWR) and the Gross Axle Weight Rating (GAWR) for the front and rear axle. See “Certification Label” later in this section.
Steps for Determining Correct Load Limit 1. Locate the statement “The combined weight of occupants and cargo should never exceed XXX kg or XXX lbs” on your vehicle placard.
2. Determine the combined weight of the driver and passengers that will be riding in your vehicle.
3. Subtract the combined weight of the driver and passengers from XXX kg or XXX lbs.
4. The resulting figure equals
the available amount of cargo and luggage load capacity. For example, if the “XXX” amount equals 1400 lbs and there will be five 150 lb passengers in your vehicle, the amount of available cargo and luggage load capacity is 650 lbs (1400 − 750
(5 x 150) = 650 lbs).Tire and Loading Information Label
Label Example
A vehicle specific Tire and Loading Information label is attached to the vehicle’s center pillar (B-pillar). With the driver’s door open, you will find the label attached near the door lock post. The Tire and Loading Information label shows the
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5. Determine the combined
weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4. 6. If your vehicle will be towing a
trailer, the load from your trailer will be transferred to your vehicle. Consult this manual to determine how this reduces the available cargo and luggage load capacity of your vehicle.
See Towing a Trailer on page 9-85 for important information on towing a trailer, towing safety rules and trailering tips.
Example 1
Example 2
A. Vehicle Capacity Weight for
Example 1 = 1,000 lbs (453 kg).
B. Subtract Occupant Weight
150 lbs (68 kg) × 2 = 300 lbs (136 kg).
C. Available Occupant and Cargo Weight = 700 lbs (317 kg).
A. Vehicle Capacity Weight for
Example 2 = 1,000 lbs (453 kg).
B. Subtract Occupant Weight
150 lbs (68 kg) × 5 = 750 lbs (340 kg).
C. Available Cargo
Weight = 250 lbs (113 kg).
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and seating positions. The combined weight of the driver, passengers, and cargo should never exceed the vehicle’s capacity weight. Certification Label
Label Example
A vehicle specific Certification label, is attached to the driver side center pillar. The label tells you the gross weight capacity of the vehicle, called the Gross Vehicle Weight Rating (GVWR). The GVWR includes
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the weight of the vehicle, all occupants, fuel, and cargo. Never exceed the GVWR for the vehicle, or the Gross Axle Weight Rating (GAWR) for either the front or rear axle. And, if you do have a heavy load, you should spread it out. See “Steps for Determining Correct Load Limit” earlier in this section.
{ CAUTION
Do not load the vehicle any heavier than the Gross Vehicle Weight Rating (GVWR), or either the maximum front or rear Gross Axle Weight Rating (GAWR). If you do, parts on the vehicle can break, and it can change the way your vehicle handles. These could cause you to lose control and crash. Also, overloading can shorten the life of the vehicle.
Example 3
A. Vehicle Capacity Weight for Example 3 = 1,000 lbs (453 kg).
B. Subtract Occupant
Weight 200 lbs (91 kg) × 5 = 1,000 lbs (453 kg).
C. Available Cargo
Weight = 0 lbs (0 kg).
Refer to the vehicle’s Tire and Loading Information label for specific information about the vehicle’s capacity weight
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Driving and Operating
If you put things inside the vehicle — like suitcases, tools, packages, or anything else — they will go as fast as the vehicle goes. If you have to stop or turn quickly, or if there is a crash, they will keep going.
{ CAUTION
Things you put inside the vehicle can strike and injure people in a sudden stop or turn, or in a crash. (cid:129) Put things in the trunk of
your vehicle. In a trunk, put them as far forward as you can. Try to spread the weight evenly.
(Continued)
CAUTION (Continued)
(cid:129) Never stack heavier
things, like suitcases, inside the vehicle so that some of them are above the tops of the seats.
(cid:129) Do not leave an unsecured
child restraint in the vehicle.
(cid:129) When you carry something inside the vehicle, secure it whenever you can.
(cid:129) Do not leave a seat folded down unless you need to.
Fuel Use of the recommended fuel is an important part of the proper maintenance of your vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline advertised as TOP TIER Detergent Gasoline. The 8th digit of the Vehicle Identification Number (VIN) shows the code letter or number that identifies your vehicle’s engine. The VIN is at the top left of the instrument panel. See Vehicle Identification Number (VIN) on page 10-1.
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If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If you are using gasoline rated at 87 octane or higher and you hear heavy knocking, the engine needs service.
Gasoline Specifications At a minimum, gasoline should meet ASTM specification D 4814
in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). We recommend against the use of gasolines containing MMT. See Additives on page 8-34 for additional information.California Fuel If your vehicle is certified to meet California Emissions Standards, it is designed to operate on fuels that meet California specifications. See the underhood emission control label. If this fuel is not available in states adopting California emissions standards, your vehicle will operate satisfactorily on fuels meeting federal specifications, but emission control system performance might be affected. The malfunction indicator lamp could turn on and your vehicle might fail a smog-check test. See Malfunction Indicator Lamp on page 4-18. If this occurs, return to your authorized dealer/retailer for diagnosis. If it is determined that the condition is caused by the type of fuel used, repairs might not be covered by the vehicle warranty.
