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9 (Off): Turns the cruise control system off. R (On): Turns the cruise control the system on.
Driving and Operating
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WARNING (Continued)
Cruise control can be dangerous on slippery roads. On such roads, fast changes in tire traction can cause excessive wheel slip, and you could lose control. Do not use cruise control on slippery roads.
The cruise control disengages, if the vehicle has the Traction Control System (TCS) and it begins to limit wheel spin. See Traction Control System (TCS) on page 9‑52 . When road conditions allow the cruise control to be safely used again, it can be turned back on.
S (Resume/Accelerate): Makes the vehicle accelerate or resume to a previously set speed. rT (Set): Press this button to set the speed. Cruise control will not work if the parking brake is set, or if the master cylinder brake fluid level is low. If the brakes are applied, the cruise control shuts off.
{ WARNING
Cruise control can be dangerous where you cannot drive safely at a steady speed. So, do not use the cruise control on winding roads or in heavy traffic.
(Continued)
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Driving and Operating
Setting Cruise Control
{ WARNING
If you leave your cruise control on when you are not using cruise, you might hit a button and go into cruise when you do not want to. You could be startled and even lose control. Keep the cruise control switch off until you want to use cruise control.
1. Move the cruise control switch
to on.
2. Get up to the speed desired.
3. Press T at the end of the lever
and release it.
4. Take your foot off the accelerator
pedal.
The cruise symbol on the instrument panel comes on when the cruise control is engaged.
Resuming a Set Speed Suppose the cruise control is set at a desired speed and then you apply the brake or step on the clutch. This disengages the cruise control. But it does not need to be reset. Once the vehicle is going about 40 km/h (25 mph) or more, move the cruise control switch briefly from R to S. The vehicle goes back to the chosen speed and stays there. If the switch is held at resume/ accelerate the vehicle keeps going faster until the switch is released or the brake is applied. Do not hold the switch at resume/accelerate, unless you want the vehicle to go faster.
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Using Cruise Control on Hills How well the cruise control works on hills depends upon the vehicle's speed, load, and the steepness of the hills. When going up steep hills, the accelerator pedal might have to be used to maintain the vehicle speed. When going downhill, you might have to brake or shift to a lower gear to keep the vehicle speed down. When the brake is applied the cruise control will turn off.
Reducing Speed While Using Cruise Control . Press and hold T until the
desired lower speed is reached, then release it. To slow down in very small amounts, briefly press T. Each time this is done, the vehicle goes about 1.6 km/h (1 mph) slower.
Passing Another Vehicle While Using Cruise Control Use the accelerator pedal to increase the vehicle speed. When you take your foot off the pedal, the vehicle slows down to the cruise control speed set earlier.
Increasing Speed While Using Cruise Control There are two ways to go to a higher speed: . Use the accelerator pedal to get to the higher speed. Press T at the end of the lever, then release the button and the accelerator pedal. The vehicle will now cruise at the higher speed. If the accelerator pedal is held longer than 60 seconds, cruise control will turn off.
. Move the cruise switch
from R to S. Hold it there until the desired speed is reached, and then release the switch. To increase the vehicle speed in small amounts, move the switch briefly to resume/accelerate. Each time this is done, the vehicle goes about 1.6 km/h (1 mph) faster.
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Driving and Operating
Ending Cruise Control To turn off the cruise control, do one of the following: . Step lightly on the brake pedal. . Move the cruise control switch
to 9. Lightly tap or press the clutch, if the vehicle has a manual transmission.
Erasing Speed Memory The cruise control set speed memory is erased, when the cruise control or the ignition is turned off.
Object Detection Systems
Rear Vision Camera (RVC) Vehicles with the rear vision camera system are designed to help the driver while the vehicle is backing up. The area behind the vehicle is displayed on the screen in the inside rear view mirror. Read this entire section before using the camera system. When the key is in the ON/RUN position and the driver shifts the vehicle into R (Reverse), the video image appears from inside the rear view mirror. Once the vehicle is shifted out of R (Reverse), the image disappears.
The display may have a guideline overlay that can help the driver align the vehicle when backing into a parking spot.
Turning the Rear Vision Camera System On or Off To turn off the rear vision camera system, press and hold z, located on the inside rearview mirror, until the left indicator light turns off. The rear camera vision display is now disabled. To turn the rear vision camera system on again, press and hold z until the left indicator light illuminates. The rear vision camera system display is now enabled and the display will appear in the mirror normally.
WARNING (Continued)
So if you do not use proper care before backing up, you could hit a vehicle, child, pedestrian, bicyclist, or pet, resulting in vehicle damage, injury, or death. Even though the vehicle has the RVC system, always check carefully before backing up by checking behind and around the vehicle.
{ WARNING
The Rear Vision Camera (RVC) system does not replace driver vision. RVC does not:
. Detect objects that are
outside the camera's field of view, below the bumper, or underneath the vehicle.
. Detect children, pedestrians,
bicyclists, or pets.
Do not back the vehicle by only looking at the RVC screen, or use the screen during longer, higher speed backing maneuvers or where there could be cross-traffic. Your judged distances using the screen will differ from actual distances.
(Continued)
Driving and Operating
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Rear Vision Camera Location
View of H3 Camera Location
View of H3T Camera Location
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Driving and Operating
The image on the screen is provided by the camera located on the rear bumper. The image from the camera that appears on the screen appears farther than the actual distance. The area displayed by the camera is limited. The camera does not display objects which are close to either corner of the bumper or under the bumper. On the H3, the spare tire and carrier extends rearward of the rear bumper. The area displayed on the screen may vary according to vehicle orientation or road conditions. The following illustration shows the field of view that the camera provides.
H3 Field of View
Notice: The spare tire extends farther away from rear of the vehicle than the trailer hitch shown on rear vision camera display. The spare tire could hit an object even though there appears to be enough distance on the display between the trailer hitch and objects behind you causing vehicle or property damage. Do not use this system to judge the distance between the spare tire and objects behind you.
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The rear vision camera system display in the rearview mirror may turn off or not appear as expected due to a loss of video signal, or no video signal present during the reverse cycle. The display will be blank and the left indicator light will slowly flash as long as the vehicle is in R (Reverse) or until the condition returns to normal. Pressing and holding z when the left indicator light is flashing will turn off the video display along with the left indicator light.
When the System Does Not Seem To Work Properly The rear vision camera system may not work properly or display a clear image:
In the dark.
. When the sun or the beam of headlamps is shining directly into the camera lens. If ice, snow, mud, or anything else builds up on the camera lens. Clean the lens, rinse it with water, and wipe it with a soft cloth. If the back of the vehicle is in an accident, the position and mounting angle of the camera may change or the camera may be affected. Be sure to have the camera and its position and mounting angle checked at your dealer. If there are extreme temperatures or extreme temperature changes.
H3T Field of View
A. View displayed by the camera. B. Corner of the rear bumper.
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Driving and Operating
Fuel Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline advertised as TOP TIER Detergent Gasoline. Look for the TOP TIER label on the fuel pump to ensure gasoline meets enhanced detergency standards developed by auto companies. A list of marketers providing TOP TIER Detergent Gasoline can be found at www.toptiergas.com.
The 8th digit of the Vehicle Identification Number (VIN) shows the code letter or number that identifies the vehicle's engine.
The VIN is at the top left of the instrument panel. See Vehicle Identification Number (VIN) on page 12‑1 . If the vehicle has the 5.3L V8 engine (VIN Code P), you can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol) on page 9‑66 . In all other engines, use only regular unleaded gasoline.
Recommended Fuel Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, 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 Fuel Additives on page 9‑65 for additional information.California Fuel Requirements If the 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, the vehicle will operate satisfactorily on fuels meeting federal specifications, but emission control system performance might
Driving and Operating
9-65
be affected. The malfunction indicator lamp could turn on and the vehicle might fail a smog‐check test. See Malfunction Indicator Lamp on page 5‑12 . 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.
Fuels in Foreign Countries If you plan on driving in another country outside the United States or Canada, the proper fuel might be hard to find. Never use leaded gasoline or any other fuel not recommended in the previous text on fuel. Costly repairs caused by use of improper fuel would not be covered by the vehicle warranty. To check the fuel availability, ask an auto club, or contact a major oil company that does business in the country where you will be driving.
Fuel Additives To provide cleaner air, all gasolines in the United States are now required to contain additives that help prevent engine and fuel system deposits from forming, allowing the emission control system to work properly. In most cases, nothing should have to be added to the fuel. However, some gasolines contain only the minimum amount of additive required to meet U.S. Environmental Protection Agency regulations. To help keep fuel injectors and intake valves clean, or if the vehicle experiences problems due to dirty injectors or valves, look for gasoline that is advertised as TOP TIER Detergent Gasoline. Look for the TOP TIER label on the fuel pump to ensure gasoline meets enhanced detergency standards developed by the auto companies. A list of marketers providing TOP TIER Detergent Gasoline can be found at www.toptiergas.com.
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Driving and Operating
For customers who do not use TOP TIER Detergent Gasoline regularly, one bottle of GM Fuel System Treatment PLUS, added to the fuel tank at every engine oil change, can help clean deposits from fuel injectors and intake valves. GM Fuel System Treatment PLUS is the only gasoline additive recommended by HUMMER. It is available at your dealer/retailer. Gasolines containing oxygenates, such as ethers and ethanol, and reformulated gasolines might be available in your area. We recommend that you use these gasolines, if they comply with the specifications described earlier. However, E85 (85% ethanol) and other fuels containing more than 10% ethanol must not be used in vehicles that were not designed for those fuels.
Notice: This vehicle was not designed for fuel that contains methanol. Do not use fuel containing methanol. It can corrode metal parts in the fuel system and also damage plastic and rubber parts. That damage would not be covered under the vehicle warranty. Some gasolines that are not reformulated for low emissions can contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); ask the attendant where you buy gasoline whether the fuel contains MMT. We recommend against the use of such gasolines. Fuels containing MMT can reduce the life of spark plugs and the performance of the emission control system could be affected. The malfunction indicator lamp might turn on. If this occurs, return to your dealer/retailer for service.
Fuel E85 (85% Ethanol) The 8th digit of the Vehicle Identification Number (VIN) shows the code letter or number that identifies the vehicle's engine. The VIN is at the top left of the instrument panel. See Vehicle Identification Number (VIN) on page 12‑1 . If the vehicle has the 5.3L V8 engine (VIN Code P), you can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). In all other engines, use only the unleaded gasoline described under Recommended Fuel on page 9‑64. Only vehicles that have the 5.3L V8 engine (VIN Code P) can use 85% ethanol fuel (E85). We encourage the use of E85 in vehicles that are designed to use it. The ethanol in E85 is a “renewable” fuel, meaning it is made from renewable sources such as corn and other crops.
Many service stations will not have an 85% ethanol fuel (E85) pump available. The U.S. Department of Energy has an alternative fuels website (www.eere.energy.gov/afdc/ infrastructure/locator.html) that can help you find E85 fuel. Those stations that do have E85 should have a label indicating ethanol content. Do not use the fuel if the ethanol content is greater than 85%. At a minimum, E85 should meet ASTM Specification D 5798. By definition, this means that fuel labeled E85 will have an ethanol content between 70% and 85%. Filling the fuel tank with fuel mixtures that do not meet ASTM specifications can affect driveability and could cause the malfunction indicator lamp to come on.
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9-67
To ensure quick starts in the wintertime, the E85 fuel must be formulated properly for your climate according to ASTM specification D 5798. If you have trouble starting on E85, it could be because the E85 fuel is not properly formulated for your climate. If this happens, switching to gasoline or adding gasoline to the fuel tank can improve starting. For good starting and heater efficiency below 0°C (32°F), the fuel mix in the fuel tank should contain no more than 70% ethanol. It is best not to alternate repeatedly between gasoline and E85. If you do switch fuels, it is recommended that you add as much fuel as possible — do not add less than 11 L (three gallons) when refueling. You should drive the vehicle immediately after refueling for at least 11 km (seven miles) to allow the vehicle to adapt to the change in ethanol concentration.
E85 has less energy per gallon than gasoline, so you will need to refill the fuel tank more often when using E85 than when you are using gasoline. See Filling the Tank on page 9‑68 . Notice: Some additives are not compatible with E85 fuel and can harm the vehicle's fuel system. Do not add anything to E85. Damage caused by additives would not be covered by the vehicle warranty. Notice: This vehicle was not designed for fuel that contains methanol. Do not use fuel containing methanol. It can corrode metal parts in the fuel system and also damage plastic and rubber parts. That damage would not be covered under the vehicle warranty.
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Driving and Operating
Filling the Tank
{ WARNING
Fuel vapor burns violently and a fuel fire can cause bad injuries. To help avoid injuries to you and others, read and follow all the instructions on the fuel pump island. Turn off the engine when refueling. Do not smoke near fuel or when refueling the vehicle. Do not use cellular phones. Keep sparks, flames, and smoking materials away from fuel. Do not leave the fuel pump unattended when refueling the vehicle. This is against the law in some places. Do not re-enter the vehicle while pumping fuel. Keep children away from the fuel pump; never let children pump fuel.
{ WARNING
Fuel can spray out on you if you open the fuel cap too quickly. If you spill fuel and then something ignites it, you could be badly burned. This spray can happen if the tank is nearly full, and is more likely in hot weather. Open the fuel cap slowly and wait for any hiss noise to stop. Then unscrew the cap all the way.
Be careful not to spill fuel. Do not top off or overfill the tank and wait a few seconds after you have finished pumping before removing the nozzle. Clean fuel from painted surfaces as soon as possible. See Exterior Care on page 10‑92. When replacing the fuel cap, turn it clockwise until three clicks. Make sure the cap is fully installed. The diagnostic system can determine if the fuel cap has been left off or improperly installed.
The fuel cap is located on the driver side of the vehicle. To remove the fuel cap, turn it slowly counterclockwise. While refueling, let the fuel cap hang by the tether, if it has one. When reinstalling the cap, turn it clockwise until three clicks, otherwise the Malfunction Indicator Lamp could turn on. See Malfunction Indicator Lamp on page 5‑12 .
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WARNING (Continued)
. Bring the fill nozzle in contact
with the inside of the fill opening before operating the nozzle. Contact should be maintained until the filling is complete.
. Do not smoke while
pumping fuel.
. Do not use a cellular phone
while pumping fuel.
This would allow fuel to evaporate into the atmosphere. See Malfunction Indicator Lamp on page 5‑12 . The FUEL CAP message displays on the Driver Information Center (DIC) if the fuel cap is not properly installed. See Fuel System Messages on page 5‑24 for more information.
{ WARNING If a fire starts while you are refueling, do not remove the nozzle. Shut off the flow of fuel by shutting off the pump or by notifying the station attendant. Leave the area immediately.
Notice: If a new fuel cap is needed, be sure to get the right type of cap from your dealer. The wrong type fuel cap might not fit properly, might cause the malfunction indicator lamp to
light, and could damage the fuel tank and emissions system. See Malfunction Indicator Lamp on page 5‑12.
Filling a Portable Fuel Container
{ WARNING
Never fill a portable fuel container while it is in the vehicle. Static electricity discharge from the container can ignite the fuel vapor. You can be badly burned and the vehicle damaged if this occurs. To help avoid injury to you and others:
. Dispense fuel only into
approved containers.
. Do not fill a container while
it is inside a vehicle, in a vehicle's trunk, pickup bed, or on any surface other than the ground.
(Continued)
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Driving and Operating
Towing
General Towing Information Only use towing equipment that has been designed for the vehicle. Contact your dealer or trailering retailer for assistance with preparing the vehicle for towing a trailer. See the following trailer towing information in this section:
For information on driving while towing a trailer, see “Driving Characteristics and Towing Tips”. For maximum vehicle and trailer weights, see “Trailer Towing”. For information on equipment to tow a trailer, see “Towing Equipment”.
For information on towing a disabled vehicle, see Towing the Vehicle on page 10‑90. For information on towing the vehicle behind another vehicle — such as a motorhome, see Recreational Vehicle Towing on page 10‑90.
Driving Characteristics and Towing Tips
{ WARNING
The driver can lose control when pulling a trailer if the correct equipment is not used or the vehicle is not driven properly. For example, if the trailer is too heavy, the brakes may not work well — or even at all. The driver and passengers could be seriously injured. The vehicle may also be damaged; the resulting repairs would not be covered by the vehicle warranty.
(Continued)
WARNING (Continued)
Pull a trailer only if all the steps in this section have been followed. Ask your dealer for advice and information about towing a trailer with the vehicle.
Notice: Pulling a trailer improperly can damage the vehicle and result in costly repairs not covered by the vehicle warranty. To pull a trailer correctly, follow the advice in this section and see your dealer for important information about towing a trailer with the vehicle. The vehicle can tow a trailer when it is equipped with the proper trailer towing equipment. For trailering capacity, see Trailer Towing on page 9‑74 . Trailering changes handling, acceleration, braking, durability and fuel economy.
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With the added weight, the engine, transmission, wheel assemblies and tires are forced to work harder and under greater loads. The trailer also adds wind resistance, increasing the pulling requirements. For safe trailering, correctly use the proper trailering equipment. The following information has important trailering tips and rules for your safety and that of your passengers. Read this section carefully before pulling a trailer. Pulling A Trailer Here are some important points:
There are many laws, including speed limit restrictions that apply to trailering. Check for legal requirements with state or provincial police.
. Consider using a sway control.
See “Hitches” later in this section.
. Do not tow a trailer at all during the first 800 km (500 miles) the new vehicle is driven. The engine, axle or other parts could be damaged. Then, during the first 800 km (500 miles) that a trailer is towed, do not drive over 80 km/h (50 mph) and do not make starts at full throttle. This helps the engine and other parts of the vehicle wear in at the heavier loads.
. Vehicles with an automatic
transmission can tow in D (Drive). Use a lower gear if the transmission shifts too often. For vehicles with a manual transmission, it is better not to use the highest gear. This vehicle has a Hill Start Assist feature, which may be useful when the vehicle is stopped on a grade. See Hill Start Assist (HSA) on page 9‑52
for more information.. Do not drive faster than the maximum posted speed for trailers.
Driving with a Trailer Towing a trailer requires experience. Get familiar with handling and braking with the added trailer weight. The vehicle is now longer and not as responsive as the vehicle is by itself. Check all trailer hitch parts and attachments, safety chains, electrical connectors, lamps, tires and mirror adjustments. If the trailer has electric brakes, start the vehicle and trailer moving and then apply the trailer brake controller by hand to be sure the brakes are working. During the trip, check occasionally to be sure that the load is secure, and the lamps and trailer brakes are working properly.
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Driving and Operating
Towing with a Stability Control System When towing, the sound of the stability control system might be heard. The system is reacting to the vehicle movement caused by the trailer, which mainly occurs during cornering. This is normal when towing heavier trailers. Following Distance Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer. This can help to avoid situations that require heavy braking and sudden turns. Passing More passing distance is needed when towing a trailer. Because the rig is longer, it is necessary to go much farther beyond the passed vehicle before returning to the lane.
Backing Up Hold the bottom of the steering wheel with one hand. Then, to move the trailer to the left, move that hand to the left. To move the trailer to the right, move your hand to the right. Always back up slowly and, if possible, have someone guide you. Making Turns Notice: Making very sharp turns while trailering could cause the trailer to come in contact with the vehicle. The vehicle could be damaged. Avoid making very sharp turns while trailering. When turning with a trailer, make wider turns than normal. Do this so the trailer won't strike soft shoulders, curbs, road signs, trees or other objects. Avoid jerky or sudden maneuvers. Signal well in advance.
Turn Signals When Towing a Trailer The arrows on the instrument panel flash whenever signaling a turn or lane change. Properly hooked up, the trailer lamps also flash, telling other drivers the vehicle is turning, changing lanes or stopping. When towing a trailer, the arrows on the instrument panel flash for turns even if the bulbs on the trailer are burned out. For this reason you may think other drivers are seeing the signal when they are not. It is important to check occasionally to be sure the trailer bulbs are still working. Driving On Grades Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might have to be used so much that they would get hot and no longer work well.
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Vehicles with an automatic transmission can tow in D (Drive). Shift the transmission to a lower gear if the transmission shifts too often under heavy loads and/or hilly conditions. For vehicles with a manual transmission, it is better not to use the highest gear. When towing at high altitude on steep uphill grades, consider the following: Engine coolant will boil at a lower temperature than at normal altitudes. If the engine is turned off immediately after towing at high altitude on steep uphill grades, the vehicle may show signs similar to engine overheating. To avoid this, let the engine run while parked, preferably on level ground, with the automatic transmission in P (Park) for a few minutes before turning the engine off. For vehicles with manual
transmissions, let the engine run while parked, preferably on level ground, with the transmission out of gear and the parking brake applied, for a few minutes before turning the engine off. If the overheat warning comes on, see Engine Overheating on page 10‑22. Parking on Hills
{ WARNING
Parking the vehicle on a hill with the trailer attached can be dangerous. If something goes wrong, the rig could start to move. People can be injured, and both the vehicle and the trailer can be damaged. When possible, always park the rig on a flat surface.
If parking the rig on a hill: 1. Press the brake pedal, but do
not shift into P (Park) yet for vehicles with an automatic transmission, or into gear for vehicles with a manual transmission. Turn the wheels into the curb if facing downhill or into traffic if facing uphill.
2. Have someone place chocks
under the trailer wheels.
3. When the wheel chocks are in place, release the brake pedal until the chocks absorb the load.
4. Reapply the brake pedal. Then
apply the parking brake and shift into P (Park) for vehicles with an automatic transmission or into gear for vehicles with a manual transmission.
5. Release the brake pedal.
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Driving and Operating
Leaving After Parking on a Hill 1. Apply and hold the brake pedal
while you:
start the engine, shift into a gear, and release the parking brake.
2. Let up on the brake pedal. 3. Drive slowly until the trailer is
clear of the chocks.
4. Stop and have someone pick up
and store the chocks.
Maintenance When Trailer Towing The vehicle needs service more often when pulling a trailer. See this manual's Maintenance Schedule or Index for more information. Things that are especially important in trailer operation are automatic transmission fluid, engine oil, axle
lubricant, belts, cooling system and brake system. It is a good idea to inspect these before and during the trip. Check periodically to see that all hitch nuts and bolts are tight. Engine Cooling When Trailer Towing The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating on page 10‑22.
Trailer Towing Three important considerations have to do with weight:
The weight of the trailer. The weight of the trailer tongue. The total weight on the vehicle's tires.
Weight of the Trailer How heavy can a trailer safely be? Speed, altitude, road grades, outside temperature, special equipment, and the amount of tongue weight the vehicle can carry must be considered. See “Weight of the Trailer Tongue” later in this section for more information. Maximum trailer weight is calculated assuming only the driver is in the tow vehicle and it has all the required trailering equipment. The weight of additional optional equipment, passengers and cargo in the tow vehicle must be subtracted from the maximum trailer weight. Use the following chart to determine how much a vehicle can weigh, based on the vehicle model and options.
Vehicle
Axle Ratio
Maximum Trailer Weight
*GCWR
Driving and Operating
9-75
H3
3.7L L5 Engine, Automatic Transmission 3.7L L5 Engine, Manual Transmission 5.3L V8 Engine, Automatic Transmission
H3T
3.7L L5 Engine, Automatic Transmission 3.7L L5 Engine, Manual Transmission 5.3L V8 Engine, Automatic Transmission
4.56
4.56
4.10
4.56
4.56
4.10
4,500 lbs (2 041 kg)
9,500 lbs (4 309 kg)
3,000 lbs (1 361 kg)
8,000 lbs (3 629 kg)
6,000 lbs (2 721 kg)
11,400 lbs (5 171 kg)
4,400 lbs (1 996 kg)
9,500 lbs (4 309 kg)
2,900 lbs (1 315 kg)
8,000 lbs (3 629 kg)
5,900 lbs (2 676 kg)
11,400 lbs (5 171 kg)
*The Gross Combination Weight Rating (GCWR) in the total allowable weight of the completely loaded vehicle and trailer including any passengers, cargo, equipment and conversions. The GCWR for the vehicle should not be exceeded.
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Driving and Operating
Ask your dealer for our trailering information or advice, or write us at our Customer Assistance Offices. See Customer Assistance Offices on page 13‑3 for more information. Weight of the Trailer Tongue The tongue load (A) of any trailer is an important weight to measure because it affects the total gross weight of the vehicle. The Gross Vehicle Weight (GVW) includes the curb weight of the vehicle, any cargo carried in it, and the people who will be riding in the vehicle. If there are a lot of options, equipment, passengers or cargo in the vehicle, it will reduce the tongue weight the vehicle can carry, which will also reduce the trailer weight the vehicle can tow. If towing a trailer, the tongue load must be added to the GVW because the vehicle will be carrying that weight, too. See Vehicle Load Limits on page 9‑27
for more information about the vehicle's maximum load capacity.If a weight-carrying hitch or a weight-distributing hitch is being used, the trailer tongue (A) should weigh 10‐15 percent of the total loaded trailer weight (B) up to a maximum of 227 kg (500 lbs). After loading the trailer, weigh the trailer and then the tongue, separately, to see if the weights are proper. If they are not, adjustments might be made by moving some items around in the trailer.
Trailering may be limited by the vehicle's ability to carry tongue weight. Tongue weight cannot cause the vehicle to exceed the GVWR (Gross Vehicle Weight Rating) or the RGAWR (Rear Gross Axle Weight Rating). The effect of additional weight may reduce the trailering capacity more than the total of the additional weight. Choose the shortest hitch extension that will position the hitch ball closest to the vehicle. This will help reduce the effect of trailer tongue weight on the rear axle. If the spare tire carrier is mounted on the back of the vehicle and the hitch extension is too short, the spare tire may interfere with trailer coupling or trailer tongue jack operation on some types of trailers.
Consider the following example: A vehicle model base weight is 2 495 kg (5,500 lbs); 1 270 kg (2,800 lbs) at the front axle and 1 225 kg (2,700 lbs) at the rear axle. It has a GVWR of 3 266 kg (7,200 lbs), a RGAWR of 1 814 kg (4,000 lbs) and a GCWR (Gross Combination Weight Rating) of 6 350 kg (14,000 lbs). The trailer rating should be:
Since the rear axle already weighs 1 225 kg (2,700 lbs), adding 578 kg (1,275 lbs) brings the total to 1 803 kg (3,975 lbs). This is very close to, but within the limit for RGAWR as well. The vehicle is set to trailer up to 3 856 kg (8,500 lbs). If the vehicle has many options and there is a front seat passenger and two rear seat passengers with some luggage and gear in the vehicle as well. 136 kg (300 lbs) could be added to the front axle weight and 181 kg (400 lbs) to the rear axle weight. The vehicle now weighs:
Expect tongue weight to be at least 10 percent of trailer weight (386 kg (850 lbs)) and because the weight is applied well behind the rear axle, the effect on the rear axle is greater than just the weight itself, as much as 1.5 times as much. The weight at the rear axle could be 386 kg (850 lbs) X 1.5 = 578 kg (1,275 lbs).
Weight is still below 3 266 kg (7,200 lbs) and you might think 318 additional kilograms (700 lbs) should be subtracted from the trailering capacity to stay within GCWR limits. The maximum trailer
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would only be 3 538 kg (7,800 lbs). You may go further and think the tongue weight should be limited to less than 454 kg (1,000 lbs) to avoid exceeding GVWR. But the effect on the rear axle must still be considered. Because the rear axle now weighs 1 406 kg (3,100 lbs), 408 kg (900 lbs) can be put on the rear axle without exceeding RGAWR. The effect of tongue weight is about 1.5 times the actual weight. Dividing the 408 kg (900 lbs) by 1.5 leaves only 272 kg (600 lbs) of tongue weight that can be handled. Since tongue weight is usually at least 10 percent of total loaded trailer weight, expect that the largest trailer the vehicle can properly handle is 2 722 kg (6,000 lbs). It is important that the vehicle does not exceed any of its ratings — GCWR, GVWR, RGAWR, Maximum Trailer Rating or Tongue Weight. The only way to be sure it is not exceeding any of these ratings is to weigh the vehicle and trailer.
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Driving and Operating
Total Weight on the Vehicle's Tires Inflate the vehicle's tires to the upper limit for cold tires. These numbers can be found on the Certification label or see Vehicle Load Limits on page 9‑27 . Do not go over the GVW limit for the vehicle, or the GAWR, including the weight of the trailer tongue.
Towing Equipment
Hitches It is important to have the correct hitch equipment. Crosswinds, large trucks going by and rough roads are a few reasons why the right hitch is needed.
The rear bumper on the vehicle is not intended for hitches. Do not attach rental hitches or other bumper-type hitches to it. Use only a frame-mounted hitch that does not attach to the bumper. Will any holes be made in the body of the vehicle when the trailer hitch is installed? If there are, then be sure to seal the holes when the hitch is removed. If the holes are not sealed, dirt, water, and deadly carbon monoxide (CO) from the exhaust may get into the vehicle. See Engine Exhaust on page 9‑40.
Weight-Distributing Hitches and Weight Carrying Hitches
(A) Body-to-Ground Distance (B)
Front of Vehicle
When using a weight-distributing hitch, the hitch must be adjusted so that the distance (A) remains the same both before and after coupling the trailer to the tow vehicle.
Safety Chains Always attach chains between the vehicle and the trailer. Cross the safety chains under the tongue of the trailer to help prevent the tongue from contacting the road if it becomes separated from the hitch. Always leave just enough slack so the rig can turn. Never allow safety chains to drag on the ground. Trailer Brakes A loaded trailer that weighs more than 680 kg (1,500 lbs) needs to have its own brake system that is adequate for the weight of the trailer. Be sure to read and follow the instructions for the trailer brakes so they are installed, adjusted and maintained properly.
Driving and Operating
9-79
Trailer Wiring Harness
Heavy-Duty Trailer Wiring Package
Light‐Duty Trailer Wiring Package If the vehicle does not have a trailer towing package, the chassis harness will contain the following blunt cut circuits: . Yellow: Left Stop/Turn Signal . Dark Green: Right Stop/Turn
Signal
. White: Ground . Brown: Tail Lamps To add a trailer towing wiring package, have it installed by your dealer or a qualified service center. Also, see Add-On Electrical Equipment on page 9‑81 for more information.
If the vehicle has a trailer towing package, the rear bumper harness will have a seven‐pin universal heavy‐duty trailer connector attached to a bracket on the hitch platform.
9-80
Driving and Operating
The trailer towing harness contains the following seven trailer circuits: . Yellow: Left Stop/Turn Signal . Dark Green: Right Stop/Turn
Signal
. Brown: Taillamps . White: Ground
Light Green: Back-up Lamps
. Red: Battery Feed . Dark Blue: Trailer Brake If charging a remote (non‐vehicle) battery, turn on the headlamps to boost the vehicle system voltage to properly charge the battery.
Four-Wire Harness Adapter If towing a light-duty trailer with a standard four-way, flat pin connector, an adapter is available from your dealer.
Connect the adapter to the seven‐pin universal heavy‐duty trailer connector attached to the bracket on the hitch platform. The flip cap on the vehicle's harness locks onto the tab and helps hold the adapter in place. Plug the four-way pin connector onto the adapter.
Hold the adapter with the tab pointing up.
Trailer Brake Control Wiring Harness The trailer brake control wiring harness is located under the instrument panel to the right of the steering column. The wires are taped to the harness that goes to the courtesy light under the instrument panel. The harness has the following wires: . Red Wire: AUX B+ . Black Wire: Ground
Light Blue Wire: Brake Signal . Dark Blue Wire: Trailer Brakes
Trailer Recommendations Subtract the hitch loads from the Cargo Weight Rating (CWR). CWR is the maximum weight of the load the vehicle can carry. It does not include the weight of the people inside, but you can figure about 68 kg (150 lbs) for each passenger. The total cargo load must not be more than the vehicles CWR. Weigh the vehicle with the trailer attached, so the GVWR or GAWR are not exceeded. If using a weight-distributing hitch, weigh the vehicle without the spring bars in place. The best performance is obtained by correctly spreading out the weight of the load and choosing the correct hitch and trailer brakes. For more information see Trailer Towing on page 9‑74.
Driving and Operating
9-81
Conversions and Add-Ons
Add-On Electrical Equipment Notice: Do not add anything electrical to the vehicle unless you check with your dealer first. Some electrical equipment can damage the vehicle and the damage would not be covered by the vehicle's warranty. Some add-on electrical equipment can keep other components from working as they should. Add-on equipment can drain the vehicle battery, even if the vehicle is not operating. The vehicle has an airbag system. Before attempting to add anything electrical to the vehicle, see Servicing the Airbag-Equipped Vehicle on page 3‑40 and Adding Equipment to the Airbag-Equipped Vehicle on page 3‑40.
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Driving and Operating
2 NOTES
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate
Materials Requirements . . . . 10-3
Accessories and
Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks Doing Your Own
Service Work . . . . . . . . . . . . . . . 10-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Engine CompartmentOverview . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil . . . . . . . . . . . . . . . . . . . 10-9
Engine Oil Life System . . . . . 10-11
Automatic TransmissionFluid . . . . . . . . . . . . . . . . . . . . . . 10-12
Manual Transmission
Fluid . . . . . . . . . . . . . . . . . . . . . . 10-15
Hydraulic Clutch . . . . . . . . . . . . 10-16
Engine Air Cleaner/Filter . . . . 10-17
Cooling System . . . . . . . . . . . . 10-18
Engine Coolant . . . . . . . . . . . . . 10-19
Engine Overheating . . . . . . . . 10-22
Engine Fan . . . . . . . . . . . . . . . . . 10-24
Power Steering Fluid . . . . . . . 10-24
Washer Fluid . . . . . . . . . . . . . . . 10-25
Brakes . . . . . . . . . . . . . . . . . . . . . 10-26
Brake Fluid . . . . . . . . . . . . . . . . . 10-27
Battery . . . . . . . . . . . . . . . . . . . . . 10-28
Four-Wheel Drive . . . . . . . . . . . 10-29
Front Axle . . . . . . . . . . . . . . . . . . 10-29
Rear Axle . . . . . . . . . . . . . . . . . . 10-29
Starter Switch Check . . . . . . . 10-30
Automatic Transmission ShiftLock Control System Check . . . . . . . . . . . . . . . . . . . . . 10-30
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . 10-31
Park Brake and P (Park)
Mechanism Check . . . . . . . . 10-31
Wiper Blade
Replacement . . . . . . . . . . . . . . 10-32
Vehicle Care
10-1
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-33
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-35
Halogen Bulbs . . . . . . . . . . . . . . 10-35
Headlamps . . . . . . . . . . . . . . . . . 10-35
Taillamps, Turn Signal,Stoplamps, and Back-Up Lamps (H3) . . . . . . . . . . . . . . . 10-35
Taillamps, Turn Signal,
Stoplamps, and Back-Up Lamps (H3T) . . . . . . . . . . . . . . 10-36
License Plate Lamp . . . . . . . . 10-37
Replacement Bulbs . . . . . . . . . 10-37Electrical System
Electrical System
Overload . . . . . . . . . . . . . . . . . . 10-38
Fuses and Circuit
Breakers . . . . . . . . . . . . . . . . . . 10-39
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . 10-39
10-2
Vehicle Care
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-44
Tire Sidewall Labeling . . . . . . 10-44
Tire Designations . . . . . . . . . . . 10-46
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-48
Tire Pressure . . . . . . . . . . . . . . . 10-51
Tire Pressure MonitorSystem . . . . . . . . . . . . . . . . . . . 10-52
Tire Pressure Monitor
Operation . . . . . . . . . . . . . . . . . 10-53
Tire Inspection . . . . . . . . . . . . . . 10-57
Tire Rotation . . . . . . . . . . . . . . . 10-57
When It Is Time for NewTires . . . . . . . . . . . . . . . . . . . . . . 10-58
Buying New Tires . . . . . . . . . . . 10-59
Different Size Tires andWheels . . . . . . . . . . . . . . . . . . . 10-60
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . 10-61
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-62
Wheel Replacement . . . . . . . . 10-63
Tire Chains . . . . . . . . . . . . . . . . . 10-64
If a Tire Goes Flat . . . . . . . . . . 10-64
Tire Changing (H3T) . . . . . . . . 10-66
Tire Changing (H3) . . . . . . . . . 10-75
Secondary Latch System . . . 10-84
Full-Size Spare Tire . . . . . . . . 10-85Jump Starting
Jump Starting . . . . . . . . . . . . . . 10-86
Towing
Towing the Vehicle . . . . . . . . . 10-90
Recreational VehicleTowing . . . . . . . . . . . . . . . . . . . . 10-90
Appearance Care
Exterior Care . . . . . . . . . . . . . . . 10-92
Interior Care . . . . . . . . . . . . . . . . 10-96General Information For service and parts needs, visit your dealer/retailer. You will receive genuine parts and trained and supported service people.
California Proposition 65
Warning Most motor vehicles, including this one, contain and/or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Engine exhaust, many parts and systems, many fluids, and some component wear by-products contain and/or emit these chemicals.California Perchlorate Materials Requirements Certain types of automotive applications, such as airbag initiators, seat belt pretensioners, and lithium batteries contained in remote keyless transmitters, may contain perchlorate materials. Special handling may be necessary. For additional information, see www.dtsc.ca.gov/hazardouswaste/ perchlorate.
Accessories and Modifications Adding non‐dealer/non‐retailer accessories to the vehicle can affect vehicle performance and safety, including such things as airbags, braking, stability, ride and handling, emissions systems, aerodynamics, durability, and electronic systems like antilock brakes, traction control, and stability control. Some of these accessories could even cause malfunction or damage not covered by the vehicle warranty. Damage to vehicle components resulting from the installation or use of non‐certified parts, including control module modifications, is
Vehicle Care
10-3
not covered under the terms of the vehicle warranty and may affect remaining warranty coverage for affected parts. HUMMER Accessories are designed to complement and function with other systems on the vehicle. Your HUMMER dealer/retailer can accessorize the vehicle using genuine HUMMER Accessories. When you go to your HUMMER dealer/retailer and ask for HUMMER Accessories, you will know that HUMMER-trained and supported service technicians will perform the work using genuine HUMMER Accessories. Also, see Adding Equipment to the Airbag-Equipped Vehicle on page 3‑40 .
10-4
Vehicle Care
Vehicle Checks
Doing Your Own Service Work
{ WARNING You can be injured and the vehicle could be damaged if you try to do service work on a vehicle without knowing enough about it.
. Be sure you have sufficient
knowledge, experience, the proper replacement parts, and tools before attempting any vehicle maintenance task.
(Continued)
WARNING (Continued)
. Be sure to use the proper
nuts, bolts, and other fasteners. English and metric fasteners can be easily confused. If the wrong fasteners are used, parts can later break or fall off. You could be hurt.
If doing some of your own service work, use the proper service manual. It tells you much more
about how to service the vehicle than this manual can. To order the proper service manual, see Service Publications Ordering Information on page 13‑12. This vehicle has an airbag system. Before attempting to do your own service work, see Airbag System Check on page 3‑41. Keep a record with all parts receipts and list the mileage and the date of any service work performed. See Maintenance Records on page 11‑11.
Vehicle Care
10-5
Hood To open the hood:
1. Pull the handle with this symbol
on it. It is located inside the vehicle on the lower left side of the instrument panel.
2. Release the secondary latch on the hood. It is located below the front center of the hood.
3. Lift the hood. Before closing the hood, be sure all the filler caps are on properly. Then pull the hood down and close it firmly.
10-6
Vehicle Care
Engine Compartment Overview
3.7 L L5 Engine
Vehicle Care
10-7
A. Windshield Washer Fluid
Reservoir. See “Adding Washer Fluid” under Washer Fluid on page 10‑25.
B. Engine Coolant Recovery Tank.
See Engine Coolant on page 10‑19.
C. Engine Air Cleaner/Filter on
page 10‑17.
D. Power Steering Fluid Reservoir.
See Power Steering Fluid on page 10‑24.
E. Automatic Transmission Fluid
Dipstick (If Equipped). See “Checking the Fluid Level” under Automatic Transmission Fluid on page 10‑12.
F. Engine Oil Fill Cap. See “When to Add Engine Oil” under Engine Oil on page 10‑9.
G. Radiator Pressure Cap. See
Cooling System on page 10‑18.
H. Remote Negative (−) Terminal (GND). See Jump Starting on page 10‑86.
I. Engine Oil Dipstick. See
“Checking Engine Oil” under Engine Oil on page 10‑9.
J. Positive (+) Battery Terminal.
See Jump Starting on page 10‑86.
K. Brake Fluid Reservoir.
See “Brake Fluid” under Brakes on page 10‑26.
L. Engine Compartment Fuse
Block on page 10‑39.
M. Battery on page 10‑28. N. Hydraulic Clutch Fluid Reservoir
(If Equipped). See Hydraulic Clutch on page 10‑16.
10-8
Vehicle Care
5.3 L V8 Engine
A. Engine Air Cleaner/Filter on
F. Engine Oil Dipstick. See
page 10‑17.
B. Air Filter Restriction Indicator (If
Equipped). See Engine Air Cleaner/Filter on page 10‑17.
C. Windshield Washer Fluid
“Checking Engine Oil” under Engine Oil on page 10‑9.
G. Engine Oil Fill Cap. See “When to Add Engine Oil” under Engine Oil on page 10‑9.
Reservoir. See “Adding Washer Fluid” under Washer Fluid on page 10‑25.
H. Brake Fluid Reservoir. See
“Brake Fluid” under Brakes on page 10‑26.
D. Engine Coolant Recovery Tank.
See Engine Coolant on page 10‑19.
E. Automatic Transmission Fluid
Dipstick (If Equipped). See “Checking the Fluid Level” under Automatic Transmission Fluid on page 10‑12.
I. Battery on page 10‑28. J. Power Steering Fluid Reservoir.
See Power Steering Fluid on page 10‑24.
K. Engine Compartment Fuse
Block on page 10‑39.
L. Radiator Pressure Cap. See
Cooling System on page 10‑18.
Vehicle Care
10-9
Engine Oil
Checking Engine Oil It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. See Engine Compartment Overview on page 10‑6 for the location of the engine oil dipstick. 1. Turn off the engine and give the oil several minutes to drain back into the oil pan. If this is not done, the oil dipstick might not show the actual level.
2. Pull out the dipstick and clean
it with a paper towel or cloth, then push it back in all the way. Remove it again, keeping the tip down, and check the level.
10-10
Vehicle Care
When to Add Engine Oil
If the oil is below the cross-hatched area (L), add at least one liter/quart of the recommended oil. This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on page 12‑2. Notice: Do not add too much oil. If the engine has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, the engine could be damaged.
. American Petroleum Institute
(API) starburst symbol
Oils meeting these requirements should have the starburst symbol on the container. This symbol indicates that the oil has been certified by the American Petroleum Institute (API). Notice: Use only engine oil identified as meeting GM Standard GM6094M and showing the American Petroleum Institute Certified For Gasoline Engines starburst symbol. Failure to use the recommended oil can result in engine damage not covered by the vehicle warranty.
See Engine Compartment Overview on page 10‑6 for the location of the engine oil fill cap. Add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back in when through. What Kind of Engine Oil to Use Look for three things: . GM6094M
Use only an oil that meets GM Standard GM6094M.
. SAE 5W-30
SAE 5W-30 is best for the vehicle. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50.
Cold Temperature Operation If in an area of extreme cold, where the temperature falls below −29°C (−20°F), use either an SAE 5W-30
synthetic oil or an SAE 0W-30
engine oil. Both provide easier cold starting for the engine at extremely low temperatures. Always use an oil that meets the required specification, GM6094M. See “What Kind of Engine Oil to Use” for more information. Engine Oil Additives / Engine Oil Flushes Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM standards are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.Engine Oil Life System
When to Change Engine Oil This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on engine revolutions and engine temperature, and not on mileage. Based on driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system to work properly, the system must be reset every time the oil is changed. When the system has calculated that oil life has been diminished, it indicates that an oil change is necessary. A “Change Oil” message comes on. See Engine Oil Messages on page 5‑23 . Change the oil as soon as possible within the next 1 000 km (600 miles). It is possible that, if driving under the best conditions, the oil life system might not indicate that an oil change is necessary for over a year.
Vehicle Care
10-11
However, the engine oil and filter must be changed at least once a year and at this time the system must be reset. Your dealer has trained service people who will perform this work using genuine parts and reset the system. It is also important to check the oil regularly and keep it at the proper level. If the system is ever reset accidentally, the oil must be changed at 5 000 km (3,000 miles) since the last oil change. Remember to reset the oil life system whenever the oil is changed. How to Reset the Engine Oil Life System The Engine Oil Life System calculates when to change the engine oil and filter based on vehicle use. Whenever the oil is changed, reset the system so it can calculate when the next oil change is required. If a situation occurs where the oil is changed prior to a change engine oil message being turned on, reset the system.
10-12
Vehicle Care
After changing the engine oil, reset the system: 1. Turn the ignition key to ON/RUN
with the engine off.
2. Press and release the stem
in the lower center of the instrument cluster until the OIL LIFE message is displayed.
3. Once the alternating “Oil Life”
and “Reset” messages appear, press and hold the stem until several beeps sound. This confirms that the oil life system has been reset.
4. Turn the key to LOCK/OFF. If the “Change Oil” message comes on again and stays on for 30 seconds at the next ignition cycle, it did not reset. The system needs to be reset again.
What to Do with Used Oil Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer's warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Recycle it by taking it to a place that collects used oil.
Automatic Transmission Fluid
When to Check and Change Automatic Transmission Fluid A good time to check the automatic transmission fluid level is when the engine oil is changed. Change the fluid and filter at the intervals listed in Scheduled Maintenance on page 11‑2 , and be sure to use the transmission fluid listed in Recommended Fluids and Lubricants on page 11‑8. How to Check Automatic Transmission Fluid Because this operation can be a little difficult, you may choose to have this done at the dealer service department. If adding it yourself, be sure to follow all the instructions here, or there could be a false reading on the dipstick.
Vehicle Care
10-13
Checking the Fluid Level To prepare the vehicle: 1. Park the vehicle on a level
place. Keep the engine running. 2. With the parking brake applied, place the shift lever in P (Park).
3. With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, position the shift lever in P (Park).
4. Let the engine run at idle for
three minutes or more.
Notice: Too much or too little fluid can damage the transmission. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Too little fluid could cause the transmission to overheat. Be sure to get an accurate reading if checking the transmission fluid. Wait at least 30 minutes before checking the transmission fluid level if you have been driving: . When outside temperatures are
above 32°C (90°F).
. At high speed for quite a while. In heavy traffic — especially in hot weather.
. While pulling a trailer. To get the right reading, the fluid should be at normal operating temperature, which is 82°C to 93°C (180°F to 200°F).
Get the vehicle warmed up by driving about 24 km (15 miles) when outside temperatures are above 10°C (50°F). If it is colder than 10°C (50°F), drive the vehicle in 3 (Third) until the engine temperature gauge moves and then remains steady for 10 minutes. A cold fluid check can be made after the vehicle has been sitting for eight hours or more with the engine off, but this is used only as a reference. Let the engine run at idle for five minutes if outside temperatures are 10°C (50°F) or more. If it is colder than 10°C (50°F), the engine might have to idle longer. Should the fluid level be low during this cold check, check the fluid hot before adding fluid. Checking the fluid hot gives a more accurate reading of the fluid level.
10-14
Vehicle Care
Then, without shutting off the engine: 1. Flip the handle up and then pull out the dipstick and wipe it with a clean rag or paper towel.
The automatic transmission dipstick handle with this symbol on it is located in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview on page 10‑6 for more information on location.
2. Push it back in all the way, wait three seconds, and pull it back out again.
How to Add Automatic Transmission Fluid Refer to the Maintenance
