2011 GMC Sierra Owners Manual

. 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

(Continued)

WARNING (Continued)

speed backing maneuvers or where there could be cross-traffic. Your judged distances using the screen will differ from actual distances. 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.

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Driving and Operating

9-79

Vehicles without Navigation System The Rear Vision Camera system is designed to help the driver when backing up by displaying a view of the area behind the vehicle. When the key is in the ON/RUN position and the driver shifts the vehicle into R (Reverse), the video image automatically appears on the inside rearview mirror. Once the driver shifts out of R (Reverse), the video image automatically disappears from the inside rearview mirror.

Turning the Rear Vision Camera System Off or On To turn off the RVC system, press and hold z, located on the inside rearview mirror, until the left indicator light turns off. The RVC display is now disabled.

To turn the RVC system on again, press and hold z until the left indicator light illuminates. The RVC system display is now enabled and the display will appear in the mirror normally. Vehicles with Navigation System The RVC system is designed to help the driver when backing up by displaying a view of the area behind the vehicle. When the driver shifts the vehicle into R (Reverse), the video image automatically appears on the navigation screen. Once the driver shifts out of R (Reverse), the navigation screen will go back to the last screen that had been displayed, after a delay.

Turning the Rear Vision Camera System On or Off To turn the RVC system on or off: 1. Shift into P (Park). 2. Press the MENU button to enter

the configure menu options, then press the MENU hard key to select Display or touch the Display screen button.

3. Select the Rear Camera Options screen button. The Rear Camera Options screen will display.

4. Select the Video screen

button. When the Video screen button is highlighted the RVC system is on.

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9-80

Driving and Operating

The delay after shifting out of R (Reverse) is approximately 10 seconds. The delay can be cancelled by performing one of the following: . Pressing a hard key on the

navigation system.

. Shifting into P (Park). . Reaching a vehicle speed of

8 km/h (5 mph).

There is a message on the rear vision camera screen that states “Check Surroundings for Safety.”

Adjusting the Brightness and Contrast of the Screen To adjust the brightness and contrast of the screen, press the MENU button while the rear vision camera image is on the display. Any adjustments made will only affect the rear vision camera screen.

] (Brightness): Touch the + (plus) or – (minus) screen buttons to increase or decrease the brightness of the screen. _ (Contrast): Touch the + (plus) or – (minus) screen buttons to increase or decrease the contrast of the screen.

Symbols The navigation system may have a feature that lets the driver view symbols on the navigation screen while using the RVC. The Ultrasonic Rear Park Assist (URPA) system must not be disabled to use the caution symbols. If URPA has been disabled and the symbols have been turned on, the Rear Parking Assist Symbols Unavailable error message may display. See Ultrasonic Parking Assist on page 9‑76.

The symbols appear when an object has been detected by the URPA system. The symbol may cover the object when viewing the navigation screen. To turn the symbols on or off: 1. Make sure that URPA has not

been disabled.

2. Shift into P (Park). 3. Press the MENU hard key

to enter the configure menu options, then press the MENU hard key repeatedly until Display is selected or touch the Display screen button.

4. Select the Rear Camera Options screen button. The Rear Camera Options screen will display. 5. Touch the Symbols screen

button. The screen button will be highlighted when on.

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Rear Vision Camera Error Messages Service Rear Vision Camera System: This message can display when the system is not receiving information it requires from other vehicle systems. If any other problem occurs or if a problem persists, see your dealer. Rear Vision Camera Location

The camera uses a special lens. The distance of the image that appears on the screen differs from 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. The area displayed on the screen can vary according to vehicle orientation or road conditions.

Driving and Operating

9-81

The following illustration shows the field of view that the camera provides.

A. View displayed by the camera B. Corner of the rear bumper

The rear vision camera is located in the bezel for the tailgate handle.

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9-82

Driving and Operating

Disconnecting the Rear Vision Camera The rear vision camera must be disconnected if the tailgate needs to be removed. To disconnect the camera: 1. Remove the license plate. 2. Disconnect the camera

connectors from the chassis harness, located behind the license plate, by pressing on the release tab on each connector.

A. Chassis harness connector B. Release tab C. Camera connector

3. Plug the two exposed chassis

harness connectors together to prevent contamination.

A. Chassis harness connector B. Release tab

4. Feed the wiring harness through

the pickup box, then plug the camera connectors together to prevent contamination.

5. Remove the tailgate.

See Tailgate on page 2‑10
for more information.

6. Reinstall the license plate. Reverse this procedure to reinstall the rear vision camera and make sure the grommet and connection are secure.

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Driving and Operating

9-83

When the System Does Not Seem to Work Properly The RVC system might not work properly or display a clear image if:

The RVC is turned off. See “Turning the Rear Camera System On or Off” earlier in this section. It is dark. The sun or the beam of headlights is shining directly into the camera lens. 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.

The back of the vehicle is in an accident. If this happens, the position and mounting angle of the camera can change or the camera can be affected. Be sure to have the camera and its position and mounting angle checked at your dealer.

The RVC system display in the rearview mirror may turn off or not appear as expected due to one of the following conditions. If this occurs the left indicator light on the mirror will flash. . A slow flash may indicate a

loss of video signal, or no video signal present during the reverse cycle.

. A fast flash may indicate that

the display has been on for the maximum allowable time during a reverse cycle, or the display has reached an Over Temperature limit. The fast flash conditions are used to protect the video device from high temperature conditions. Once conditions return to normal the device will reset and the green indicator will stop flashing.

During any of these fault conditions, the display will be blank and the indicator will continue to flash as long as the vehicle is in R (Reverse) or until the conditions return 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.

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9-84

Driving and Operating

Fuel For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax Diesel Supplement. For Vehicles with gasoline engines, please read this.

Gasoline 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 eighth 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. Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85).

See Fuel E85 (85% Ethanol) on page 9‑87. For all other vehicles, use only the unleaded gasoline described under Recommended Fuel on page 9‑84.

Recommended Fuel For all vehicles except those with the 6.2L V8 engine (VIN Code 2), 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.

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If the vehicle has the 6.2L V8 engine (VIN Code 2), use premium unleaded gasoline with a posted octane rating of 91 or higher. You can also use regular unleaded gasoline rated at 87 octane or higher, but the vehicle's acceleration could be slightly reduced, and a slight audible knocking noise, commonly referred to as spark knock, might be heard. If the octane is less than 87, you might notice a heavy knocking noise when you drive. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. Otherwise, you could damage the engine. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.

Gasoline Specifications (U.S. and Canada Only) 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 9‑86 for additional information.

Driving and Operating

9-85

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 be affected. The malfunction indicator lamp could turn on and the vehicle might fail a smog‐check test. See Malfunction Indicator Lamp on page 5‑25. If this occurs, return to your authorized dealer 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.

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9-86

Driving and Operating

Fuels in Foreign Countries 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 and avoid 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. 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 General Motors. It is available at your dealer.

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.

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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 spark plug life and affect emission control system performance. The malfunction indicator lamp might turn on. If this occurs, return to your dealer for service.

Fuel E85 (85% Ethanol) Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). For all other vehicles, use only the unleaded gasoline described under Recommended Fuel on page 9‑84.

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.afdc.energy.gov/afdc/ locator/stations/) 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.

Driving and Operating

9-87

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 (3 gal) when refueling. You should drive the vehicle immediately after refueling for at least 11 km (7 mi) to allow the vehicle to adapt to the change in ethanol concentration.

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9-88

Driving and Operating

E85 has less energy per liter (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 9‑88. 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.

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

{ 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.

The tethered fuel cap is located behind a hinged fuel door on the driver side of the vehicle. Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol) on page 9‑87. To remove the fuel cap, turn it slowly counterclockwise.

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Driving and Operating

9-89

{ 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.

If the vehicle is a dual fuel tank chassis cab model, and it runs out of fuel, refuel the front fuel tank first to ensure a quick restart. 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 10‑108. When replacing the fuel cap, turn it clockwise until it clicks. It will require more effort to turn the fuel cap on the last turn as you tighten it. Make sure the cap is fully installed. The diagnostic system can determine if the fuel cap has been left off or improperly installed. This would allow fuel to evaporate into the atmosphere. See Malfunction Indicator Lamp on page 5‑25. The TIGHTEN GAS CAP message displays on the Driver Information Center (DIC) if the fuel cap is not properly installed. See Fuel System Messages on page 5‑46 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 of 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 5‑25.

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9-90

Driving and Operating

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)

WARNING (Continued)

Towing

. 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.

General Towing Information Only use towing equipment that has been designed for the vehicle. Contact your dealer or trailering dealer 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.”

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Driving and Operating

9-91

. Consider using a sway control.

. Vehicles can tow in D (Drive).

See “Hitches” under Towing Equipment on page 9‑112.

. 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.

. 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.

Shift the transmission to a lower gear if the transmission shifts too often under heavy loads and/or hilly conditions.

Important considerations that have to do with weight: . Weight of the trailer . Weight of the trailer tongue . Weight on the vehicle's tires . Weight of the trailering

combination

For information on towing a disabled vehicle, see Towing the Vehicle on page 10‑103. For information on towing the vehicle behind another vehicle such as a motor home, see Recreational Vehicle Towing on page 10‑103.

Driving Characteristics and Towing Tips

Pulling a Trailer Important points for pulling a trailer:

There are many different laws, including speed limit restrictions, having to do with trailering. Make sure the rig will be legal, not only where you live but also where you will be driving. A good source for this information can be state or provincial police.

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9-92

Driving and Operating

Driving with a Trailer

{ WARNING

When towing a trailer, exhaust gases may collect at the rear of the vehicle and enter if the liftgate, trunk/hatch, or rear-most window is open. Engine exhaust contains Carbon Monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death. To maximize safety when towing a trailer:

. Have the exhaust system

inspected for leaks and make necessary repairs before starting a trip.

. Never drive with the liftgate,

trunk/hatch, or rear-most window open.

(Continued)

WARNING (Continued)

. Fully open the air outlets

on or under the instrument panel.

. Adjust the Climate Control

system to a setting that brings in only outside air and set the fan speed to the highest setting. See Climate Control System in the Index.

For more information about Carbon Monoxide, see Engine Exhaust on page 9‑44.

Towing a trailer requires a certain amount of experience. The combination you are driving is longer and not as responsive as the vehicle itself. Get acquainted with the handling and braking of the rig before setting out for the open road.

Before starting, check all trailer hitch parts and attachments, safety chains, electrical connectors, lamps, tires, and mirrors. If the trailer has electric brakes, start the combination moving and then apply the trailer brake controller by hand to be sure the brakes work. During the trip, check occasionally to be sure that the load is secure and the lamps and any trailer brakes still work. 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 heavy braking and sudden turns.

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Passing More passing distance is needed when towing a trailer. The combination will not accelerate as quickly and is longer so 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. 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 will not strike soft shoulders, curbs, road signs, trees, or other objects. Avoid jerky or sudden maneuvers. Signal well in advance. If the trailer turn signal bulbs burn out, the arrows on the instrument panel will still flash for turns. It is important to check occasionally to be sure the trailer bulbs are still working.

Driving and Operating

9-93

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 get hot and no longer work well. Vehicles 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. The Tow/Haul Mode may be used if the transmission shifts too often. See Tow/Haul Mode on page 9‑51. 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.

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9-94

Driving and Operating

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. If the overheat warning comes on, see Engine Overheating on page 10‑25. 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. 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 regular brakes until the chocks absorb the load.

4. Reapply the brake pedal. Then

5.

apply the parking brake and shift into P (Park). If the vehicle is four-wheel-drive, be sure the transfer case is in a drive gear and not in N (Neutral).

6. Release the brake pedal.

{ WARNING

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 the engine has been left running, the vehicle can move suddenly. You or others could be injured. To be sure the vehicle will not move, even when on fairly level ground, use the steps that follow. Always put the shift lever fully in P (Park) with the parking brake firmly set. If the transfer case on a four-wheel-drive vehicle is in N (Neutral), the vehicle will be free to roll, even if the shift lever is in P (Park). Be sure the transfer case is in a drive gear — not in N (Neutral).

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Leaving After Parking on a Hill 1. Apply and hold the brake pedal. 2. Start the engine. 3. Shift into a gear. 4. Release the parking brake. 5. Let up on the brake pedal. 6. Drive slowly until the trailer is

clear of the chocks.

7. 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.

Trailer Towing If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. If the vehicle is a hybrid, see the hybrid supplement for more information. Do not tow a trailer during break‐in. See New Vehicle Break-In on page 9‑34 for more information.

{ 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

(Continued)

Driving and Operating

9-95

WARNING (Continued)

vehicle warranty. 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. To identify the trailering capacity of the vehicle, read the information in “Weight of the Trailer” later in this section.

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9-96

Driving and Operating

Trailering is different than just driving the vehicle by itself. Trailering means changes in handling, acceleration, braking, durability, and fuel economy. Successful, safe trailering takes correct equipment, and it has to be used properly. The following information has many time-tested, important trailering tips and safety rules. Many of these are important for your safety and that of your passengers. So please read this section carefully before pulling a trailer.

Weight of the Trailer How heavy can a trailer safely be? It depends on how the rig is used. Speed, altitude, road grades, outside temperature, and how much the vehicle is used to pull a trailer are all important. It can depend on any special equipment on the vehicle, and the amount of tongue weight the vehicle can carry. See “Weight of the Trailer Tongue” later in this section for more information.

Trailer weight rating (TWR) is calculated assuming the tow vehicle has only the driver but all required trailering equipment. Weight of additional optional equipment, passengers, and cargo in the tow vehicle must be subtracted from the trailer weight rating. Use the following chart to determine how much the vehicle can weigh, based upon the vehicle model and options. Weights listed apply for conventional trailers and fifth-wheel trailers unless otherwise noted.

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Driving and Operating

9-97

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

1500 Series 2WD Regular Cab Standard Box (b)

4.3L V6 (c) 4.3L V6 — With Automatic Transmission (c) 4.8L V8 (c) 4.8L V8
5.3L LMG V8
5.3L LMG V8, K5L HD Cooling Pkg 5.3L LMG V8 K5L HD Cooling Pkg 5.3L LMG V8 K5L HD Cooling Pkg Conventional Trailer 5.3L LMG V8 K5L HD Cooling Pkg Fifth-Wheel Trailer

3.23

3.73

3.23
3.73
3.08

3.08

3.42

3.42

3.42

1500 Series 2WD Extended Cab Standard Box (b) 3.23
3.23
3.73

4.3L V6 (c) 4.8L V8 (c) 4.8L V8

2 177 kg (4,800 lbs)

4 309 kg (9,500 lbs)

2 449 kg (5,400 lbs)

4 536 kg (10,000 lbs)

2 132 kg (4,700 lbs) 3 266 kg (7,200 lbs) 2 994 kg (6,600 lbs)

4 309 kg (9,500 lbs) 5 443 kg (12,000 lbs) 5 216 kg (11,500 lbs)

3 357 kg (7,400 lbs)

5 534 kg (12,200 lbs)

4 128 kg (9,100 lbs)

6 350 kg (14,000 lbs)

4 128 kg (9,100 lbs)

6 350 kg (14,000 lbs)

4 128 kg (9,100 lbs)

6 350 kg (14,000 lbs)

1 996 kg (4,400 lbs) 2 132 kg (4,700 lbs) 3 039 kg (6,700 lbs)

4 309 kg (9,500 lbs) 4 536 kg (10,000 lbs) 5 443 kg (12,000 lbs)

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9-98

Driving and Operating

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

5.3L V8
5.3L V8 K5L HD Cooling Pkg 5.3L V8 K5L HD Cooling Pkg — Conventional Trailer 5.3L V8 K5L HD Cooling Pkg — Fifth-Wheel Trailer 6.2L V8 K5L HD Cooling Pkg — Conventional Trailer 6.2L V8 K5L HD Cooling Pkg — Fifth-Wheel Trailer 6.2L V8 NHT Max Trailering Pkg — Conventional Trailer 6.2L V8 NHT Max Trailering Pkg — Fifth-Wheel Trailer

1500 Series 2WD Crew Cab Short Box (c)

4.8L V8
4.8L V8
5.3L V8 (LMG)

3.08
3.08

3.42

3.42

3.42

3.42

3.73

3.73

3.23
3.73
3.08

2 812 kg (6,200 lbs) 3 130 kg (6,900 lbs)

5 216 kg (11,500 lbs) 5 534 kg (12,200 lbs)

4 400 kg (9,700 lbs)

6 804 kg (15,000 lbs)

4 173 kg (9,200 lbs)

6 804 kg (15,000 lbs)

4 400 kg (9,700 lbs)

6 804 kg (15,000 lbs)

4 218 kg (9,300 lbs)

6 804 kg (15,000 lbs)

4 853 kg (10,700 lbs)

7 257 kg (16,000 lbs)

4 627 kg (10,200 lbs)

7 257 kg (16,000 lbs)

2 132 kg (4,700 lbs) 3 039 kg (6,700 lbs) 2 767 kg (6,100 lbs)

4 536 kg (10,000 lbs) 5 443 kg (12,000 lbs) 5 216 kg (11,500 lbs)

GMC Sierra Owner Manual - 2011

Black plate (99,1)

Driving and Operating

9-99

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

5.3L V8 (LMG) K5L HD Cooling Pkg 5.3L V8 K5L HD Cooling Pkg (XFE) 5.3L V8 K5L HD Cooling Pkg 6.2L V8
6.2L V8 K5L HD Cooling Pkg 6.2L V8 NHT Max Trailering Pkg

1500 Series 2WD Regular Cab Long Box (b)

4.3L V6 (c) 4.3L V6 (c) 4.8L V8 (c) 4.8L V8
5.3L V8 K5L HD Cooling Pkg 5.3L V8

3.08

3.08

3.42
3.42
3.42
3.73

3.23
3.73
3.23
3.73
3.08
3.42

3 084 kg (6,800 lbs)

5 534 kg (12,200 lbs)

3 175 kg (7,000 lbs)

5 534 kg (12,200 lbs)

4 355 kg (9,600 lbs) 3 039 kg (6,700 lbs) 4 400 kg (9,700 lbs) 4 808 kg (10,600 lbs)

2 132 kg (4,700 lbs) 2 359 kg (5,200 lbs) 2 313 kg (5,100 lbs) 3 221 kg (7,100 lbs) 3 266 kg (7,200 lbs) 2 948 kg (6,500 lbs)

6 804 kg (15,000 lbs) 5 443 kg (12,000 lbs) 6 804 kg (15,000 lbs) 7 257 kg (16,000 lbs)

4 309 kg (9,500 lbs) 4 536 kg (10,000 lbs) 4 536 kg (10,000 lbs) 5 443 kg (12,000 lbs) 5 534 kg (12,200 lbs) 5 216 kg (11,500 lbs)

GMC Sierra Owner Manual - 2011

Black plate (100,1)

9-100

Driving and Operating

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

5.3L V8 K5L HD Cooling Pkg — Conventional Trailer 5.3L V8 K5L HD Cooling Pkg — Fifth-Wheel Trailer

1500 Series 2WD Extended Cab Long Box (b)

5.3L V8
5.3L V8 K5L HD Cooling Pkg 5.3L V8 K5L HD Cooling Pkg — Conventional Trailer 5.3L V8 K5L HD Cooling Pkg — Fifth-Wheel Trailer

3.42

3.42

3.08
3.08

3.42

3.42

4 536 kg (10,000 lbs)

6 804 kg (15,000 lbs)

3 992 kg (8,800 lbs)

6 804 kg (15,000 lbs)

2 722 kg (6,000 lbs) 3 039 kg (6,700 lbs)

5 216 kg (11,500 lbs) 5 534 kg (12,200 lbs)

4 309 kg (9,500 lbs)

6 804 kg (15,000 lbs)

4 037 kg (8,900 lbs)

6 804 kg (15,000 lbs)

1500 Series 4WD Regular Cab Standard Box (b)

4.3L V6 (c) 4.8L V8 (c) 5.3L V8 (c) 5.3L V8 K5L HD Cooling Pkg

3.73
3.42
3.08
3.08

2 313 kg (5,100 lbs) 2 722 kg (6,000 lbs) 2 903 kg (6,400 lbs) 3 221 kg (7,100 lbs)

4 536 kg (10,000 lbs) 4 990 kg (11,000 lbs) 5 216 kg (11,500 lbs) 5 534 kg (12,200 lbs)

GMC Sierra Owner Manual - 2011

Black plate (101,1)

Driving and Operating

9-101

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

5.3L V8 K5L HD Cooling Pkg — Conventional Trailer 5.3L V8 K5L HD Cooling Pkg — Fifth-Wheel Trailer

3.42

3.42

4 037 kg (8,900 lbs)

6 350 kg (14,000 lbs)

3 674 kg (8,100 lbs)

6 350 kg (14,000 lbs)

1500 Series 4WD Extended Cab Standard Box (b) 3.42
3.08
3.08
3.42

4.8L V8 (c) 5.3L V8 (c) 5.3L V8 K5L HD Cooling Pkg (c) 5.3L V8 K5L HD Cooling Pkg 6.2L V8 K5L HD Cooling Pkg — Conventional Trailer 6.2L V8 K5L HD Cooling Pkg — Fifth-Wheel Trailer 6.2L V8 NHT Max Trailering Pkg — Conventional Trailer 6.2L V8 NHT Max Trailering Pkg — Fifth-Wheel Trailer

3.42

3.42

3.73

3.73

2 495 kg (5,500 lbs) 2 767 kg (6,100 lbs) 3 084 kg (6,800 lbs) 4 354 kg (9,600 lbs)

4 990 kg (11,000 lbs) 5 216 kg (11,500 lbs) 5 534 kg (12,200 lbs) 6 804 kg (15,000 lbs)

4 264 kg (9,400 lbs)

6 804 kg (15,000 lbs)

4 037 kg (8,900 lbs)

6 804 kg (15,000 lbs)

4 717 kg (10,400 lbs)

7 257 kg (16,000 lbs)

4 491 kg (9,900 lbs)

7 257 kg (16,000 lbs)

GMC Sierra Owner Manual - 2011

Black plate (102,1)

9-102

Driving and Operating

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

1500 Series 4WD Crew Cab Short Box (c)

4.8L V8
5.3L V8
5.3L V8 K5L HD Cooling Pkg 5.3L V8 K5L HD Cooling Pkg 6.2L V8
6.2L V8 K5L HD Cooling Pkg 6.2L V8 NHT Max Trailering Pkg

1500 Series 4WD Regular Cab Long Box (b)

4.3L V6 (c) 4.8L V8 (c) 5.3L V8 (c) 5.3L V8 K5L HD Cooling Pkg 5.3L V8 K5L HD Cooling Pkg — Conventional Trailer 5.3L V8 K5L HD Cooling Pkg — Fifth-Wheel Trailer

3.42
3.08
3.08
3.42
3.42
3.42
3.73

3.73
3.42
3.08
3.08

3.42

3.42

2 495 kg (5,500 lbs) 2 722 kg (6,000 lbs) 3 039 kg (6,700 lbs) 4 309 kg (9,500 lbs) 2 903 kg (6,400 lbs) 4 264 kg (9,400 lbs) 4 717 kg (10,400 lbs)

2 223 kg (4,900 lbs) 2 631 kg (5,800 lbs) 2 858 kg (6,300 lbs) 3 175 kg (7,000 lbs)

4 990 kg (11,000 lbs) 5 216 kg (11,500 lbs) 5 534 kg (12,200 lbs) 6 804 kg (15,000 lbs) 5 443 kg (12,000 lbs) 6 804 kg (15,000 lbs) 7 257 kg (16,000 lbs)

4 536 kg (10,000 lbs) 4 990 kg (11,000 lbs) 5 216 kg (11,500 lbs) 5 534 kg (12,200 lbs)

4 445 kg (9,800 lbs)

6 804 kg (15,000 lbs)

4 400 kg (9,700 lbs)

6 804 kg (15,000 lbs)

GMC Sierra Owner Manual - 2011

Black plate (103,1)

Driving and Operating

9-103

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

1500 Series 4WD Extended Cab Long Box (b)

5.3L V8 (c) 5.3L V8 K5L HD Cooling Pkg (c) 5.3L V8 K5L HD Cooling Pkg — Conventional Trailer 5.3L V8 K5L HD Cooling Pkg — Fifth-Wheel Trailer

3.08
3.08

3.42

3.42

2 631 kg (5,800 lbs) 2 948 kg (6,500 lbs)

5 216 kg (11,500 lbs) 5 534 kg (12,200 lbs)

4 218 kg (9,300 lbs)

6 804 kg (15,000 lbs)

3 629 kg (8,000 lbs)

6 804 kg (15,000 lbs)

2500 Series 2WD Extended Cab Standard Box HD (d)

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

3.73
4.10
4.10
2500 Series 2WD Crew Cab Standard Box HD (d) 3.73
4.10
4.10

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

4 445 kg (9,800 lbs) 5 897 kg (13,000 lbs) 6 486 kg (14,300 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

4 400 kg (9,700 lbs) 5 897 kg (13,000 lbs) 6 441 kg (14,200 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

GMC Sierra Owner Manual - 2011

Black plate (104,1)

9-104

Driving and Operating

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

2500 Series 2WD Regular Cab Long Box HD (d)

3.73

3.73

6.0L V8
6.0L V8 — Payload Performance Pkg (UB7) 6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

4.10
4.10
2500 Series 2WD Extended Cab Long Box HD (d) 3.73
4.10
4.10

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

4 627 kg (10,200 lbs)

7 257 kg (16,000 lbs)

4 536 kg (10,000 lbs)

7 257 kg (16,000 lbs)

5 897 kg (13,000 lbs) 6 668 kg (14,700 lbs)

9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

4 400 kg (9,700 lbs) 5 897 kg (13,000 lbs) 6 441 kg (14,200 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

2500 Series 2WD Crew Cab Long Box HD (d)

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

3.73
4.10
4.10

4 354 kg (9,600 lbs) 5 897 kg (13,000 lbs) 6 396 kg (14,100 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

GMC Sierra Owner Manual - 2011

Black plate (105,1)

Axle Ratio 2500 Series 4WD Extended Cab Standard Box HD (d)

Vehicle

Maximum Trailer Weight

GCWR (a)

Driving and Operating

9-105

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

3.73
4.10
4.10
2500 Series 4WD Crew Cab Standard Box HD (d) 3.73
4.10
4.10

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

2500 Series 4WD Regular Cab Long Box HD (d)

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

3.73
4.10
4.10
2500 Series 4WD Extended Cab Long Box HD (d) 3.73
4.10
4.10

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

4 309 kg (9,500 lbs) 5 897 kg (13,000 lbs) 6 350 kg (14,000 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

4 264 kg (9,400 lbs) 5 897 kg (13,000 lbs) 6 305 kg (13,900 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

4 491 kg (9,900 lbs) 5 897 kg (13,000 lbs) 6 532 kg (14,400 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

4 264 kg (9,400 lbs) 5 897 kg (13,000 lbs) 6 305 kg (13,900 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

GMC Sierra Owner Manual - 2011

Black plate (106,1)

9-106

Driving and Operating

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

2500 Series 4WD Crew Cab Long Box HD (d)

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

3500 Series 2WD Regular Cab (e)

6.0L V8 (Single Rear Wheels) Conventional Trailer 6.0L V8 (Single Rear Wheels) Fifth-Wheel Trailer 6.0L V8 (Dual Rear Wheels) 6.0L V8 (Dual Rear Wheels)

3500 Series 2WD Extended Cab (e)

6.0L V8 (Single Rear Wheels) 6.0L V8 (Single Rear Wheels) Conventional Trailer 6.0L V8 (Single Rear Wheels) Fifth-Wheel Trailer

3.73
4.10
4.10

4.10

4.10

3.73
4.10

3.73

4.10

4.10

4 218 kg (9,300 lbs) 5 897 kg (13,000 lbs) 6 260 kg (13,800 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

5 897 kg (13,000 lbs)

9 299 kg (20,500 lbs)

6 577 kg (14,500 lbs)

9 299 kg (20,500 lbs)

4 354 kg (9,600 lbs) 6 396 kg (14,100 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs)

4 309 kg (9,500 lbs)

7 257 kg (16,000 lbs)

5 897 kg (13,000 lbs)

9 299 kg (20,500 lbs)

6 350 kg (14,000 lbs)

9 299 kg (20,500 lbs)

GMC Sierra Owner Manual - 2011

Black plate (107,1)

Driving and Operating

9-107

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

6.0L V8 (Dual Rear Wheels) 6.0L V8 (Dual Rear Wheels)

3500 Series 2WD Crew Cab Standard Box (e)

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 Fifth-Wheel Trailer

3500 Series 2WD Crew Cab Long Box (e)

6.0L V8 (Single Rear Wheels) 6.0L V8 (Single Rear Wheels) Conventional Trailer 6.0L V8 (Single Rear Wheels) Fifth-Wheel Trailer 6.0L V8 (Dual Rear Wheels) 6.0L V8 (Dual Rear Wheels)

3500 Series 4WD Regular Cab (e)

6.0L V8 (Single Rear Wheels) 6.0L V8 (Single Rear Wheels) Conventional Trailer

3.73
4.10

3.73
4.10
4.10

3.73

4.10

4.10

3.73
4.10

3.73

4.10

4 128 kg (9,100 lbs) 6 169 kg (13,600 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs)

4 309 kg (9,500 lbs) 5 897 kg (13,000 lbs) 6 350 kg (14,000 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

4 264 kg (9,400 lbs)

7 257 kg (16,000 lbs)

5 897 kg (13,000 lbs)

9 299 kg (20,500 lbs)

6 305 kg (13,900 lbs)

9 299 kg (20,500 lbs)

4 082 kg (9,000 lbs) 6 123 kg (13,500 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs)

4 400 kg (9,700 lbs)

7 257 kg (16,000 lbs)

5 897 kg (13,000 lbs)

9 299 kg (20,500 lbs)

GMC Sierra Owner Manual - 2011

Black plate (108,1)

9-108

Driving and Operating

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

6.0L V8 (Single Rear Wheels) Fifth-Wheel Trailer 6.0L V8 (Dual Rear Wheels) 6.0L V8 (Dual Rear Wheels)

3500 Series 4WD Extended Cab (e)

6.0L V8 (Single Rear Wheels) 6.0L V8 (Single Rear Wheels) Conventional Trailer 6.0L V8 (Single Rear Wheels) Fifth-Wheel Trailer 6.0L V8 (Dual Rear Wheels) 6.0L V8 (Dual Rear Wheels)

3500 Series 4WD Crew Cab Standard Box (e)

6.0L V8
6.0L V8 — Conventional Trailer 6.0L V8 — Fifth-Wheel Trailer

4.10

3.73
4.10

3.73

4.10

4.10

3.73
4.10

3.73
4.10
4.10

6 441 kg (14,200 lbs)

9 299 kg (20,500 lbs)

4 218 kg (9,300 lbs) 6 260 kg (13,800 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs)

4 173 kg (9,200 lbs)

7 257 kg (16,000 lbs)

5 897 kg (13,000 lbs)

9 299 kg (20,500 lbs)

6 214 kg (13,700 lbs)

9 299 kg (20,500 lbs)

4 037 kg (8,900 lbs) 6 078 kg (13,400 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs)

4 173 kg (9,200 lbs) 5 897 kg (13,000 lbs) 6 214 kg (13,700 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) 9 299 kg (20,500 lbs)

GMC Sierra Owner Manual - 2011

Black plate (109,1)

Vehicle

Axle Ratio

Maximum Trailer Weight

GCWR (a)

3500 Series 4WD Crew Cab Long Box (e)

Driving and Operating

9-109

6.0L V8 (Single Rear Wheels) 6.0L V8 (Single Rear Wheels) Conventional Trailer 6.0L V8 (Single Rear Wheels) Fifth-Wheel Trailer 6.0L V8 (Dual Rear Wheels) 6.0L V8 (Dual Rear Wheels)

3.73

4.10

4.10

4 128 kg (9,100 lbs)

7 257 kg (16,000 lbs)

5 897 kg (13,000 lbs)

9 299 kg (20,500 lbs)

6 169 kg (13,600 lbs)

9 299 kg (20,500 lbs)

3.73
4.10

3 946 kg (8,700 lbs) 5 987 kg (13,200 lbs)

7 257 kg (16,000 lbs) 9 299 kg (20,500 lbs) (a) The Gross Combination Weight Rating (GCWR) is 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. (b) Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 680 kg (1,500 lbs) maximum. (c) This model is neither designed nor intended to tow fifth-wheel or gooseneck trailers. (d) Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 1 361 kg (3,000 lbs) maximum. (e) Fifth-wheel or gooseneck kingpin weight should be 15 percent to 25 percent of trailer weight up to 1 587 kg (3,500 lbs) maximum.

GMC Sierra Owner Manual - 2011

Black plate (110,1)

9-110

Driving and Operating

Ask your dealer for trailering information or advice, or write us at our Customer Assistance Offices. See Customer Assistance Offices (U.S. and Canada) on page 13‑5
or Customer Assistance Offices (Mexico) on page 13‑5 for more information. Weight of the Trailer Tongue The tongue load (A) of any trailer is very important because it is also part of the vehicle weight. 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 as well as trailer tongue weight. Vehicle options, equipment, passengers and cargo in the vehicle reduce the amount of tongue weight the vehicle can carry, which will also reduce the trailer weight the vehicle can tow. See “ Vehicle Load Limits” for more information about the vehicle's maximum load capacity.