2016 Chevrolet Silverado Owners Manual

– Tow/Haul not engaged Range after shifting from D (Drive) to M (Manual Mode) – Tow/Haul engaged

8th

7th

6th

5th

4th

3rd

2nd

1st

M6

M6

M5

M4

M3

M3

M2

M1

M6

M5

M4

M3

M3

M3

M2

M1

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Grade Braking is not available when Range Selection Mode is active. See Tow/Haul Mode 0 290. While using Range Selection Mode, cruise control and the Tow/Haul Mode can be used. If the vehicle has an exhaust brake, it can also be used, but will not automatically downshift the transmission. See “Exhaust Brake” in the Duramax diesel supplement.

Caution

Spinning the tires or holding the vehicle in one place on a hill using only the accelerator pedal may damage the transmission. The repair will not be covered by the vehicle warranty. If you are stuck, do not spin the tires. When stopping on a hill, use the brakes to hold the vehicle in place.

Low Traction Mode If equipped, Low Traction Mode assists in vehicle acceleration when road conditions are slippery, such

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as with ice or snow. While the vehicle is at a stop, select M2 using Range Selection Mode. This will limit torque to the wheels and help to prevent the tires from spinning.

Tow/Haul Mode

Vehicles with an automatic transmission have a Tow/Haul Mode. The Tow/Haul Mode adjusts the transmission shift pattern to reduce shift cycling. This provides increased performance, vehicle control, and enhanced transmission and engine cooling when driving

On vehicles with a gasoline engine, to disable or enable Tow/Haul Grade Braking within the current ignition key cycle, press and hold the Tow/Haul button for five seconds. When the button is released, the requested mode change is made. A DIC message is displayed. See Transmission Messages 0 160. On vehicles with a diesel engine, Tow/Haul Mode Grade Braking can be enabled or disabled by pressing the Tow/Haul Mode button. Use the exhaust brake and Tow/Haul Mode for maximum grade braking. See Towing Equipment 0 339. For other forms of grade braking, see Automatic Transmission 0 284
and Cruise Control 0 306.

down steep hills or mountain grades, towing, or hauling heavy loads. The selector button is on the end of the shift lever. Turn the Tow/Haul Mode on and off by pressing the button. When the Tow/Haul Mode is enabled, a light on the instrument cluster will come on. See Tow/Haul Mode Light 0 144 and Hill and Mountain Roads 0 264. Also see “Tow/Haul Mode” under Towing Equipment 0 339. Tow/Haul Mode Grade Braking Tow/Haul Mode Grade Braking is only enabled while the Tow/Haul Mode is selected and the vehicle is not in the Range Selection Mode. See “Tow/Haul Mode” listed previously and Manual Mode 0 287. Tow/Haul Mode Grade Braking assists in maintaining desired vehicle speeds when driving on downhill grades by using the engine and transmission to slow the vehicle.

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Manual Transmission

If equipped with a manual transmission, this is the shift pattern. To operate the manual transmission: 1 (First) : Press the clutch pedal and shift into 1 (First). Then, slowly let up on the clutch pedal as you slowly press down on the accelerator pedal. You can shift into 1 (First) when you are going less than 30 km/h (20 mph). If you have come to a complete stop and it is hard to shift into 1 (First), put the shift lever in

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Neutral and release the clutch pedal. Then press the clutch again and shift into R (Reverse). Do not attempt to shift into 5 (Fifth) prior to shifting into R (Reverse). The transmission has a lock out feature, which prevents a 5 (Fifth) gear to R (Reverse) gear shift.

Caution

Shifting to R (Reverse) while the vehicle is moving forward could damage the transmission. The repairs would not be covered by the vehicle warranty. Shift to R (Reverse) only after the vehicle is stopped.

Use R (Reverse), along with the parking brake, for parking the vehicle.

Neutral and let up on the clutch. Then press the clutch pedal back down and shift into 1 (First). 2 (Second) : Press the clutch pedal as you let up on the accelerator pedal and shift into 2 (Second). Then, slowly let up on the clutch pedal as you press the accelerator pedal. 3 (Third), 4 (Fourth), and 5 (Fifth) : Shift into 3 (Third), 4 (Fourth), and 5 (Fifth) the same way you do for 2 (Second). Slowly let up on the clutch pedal as you press the accelerator pedal. To stop, let up on the accelerator pedal and press the brake pedal. Just before the vehicle stops, press the clutch pedal and the brake pedal, and shift to Neutral. Neutral : Use this position when you start or idle the engine. R (Reverse) : To back up, press the clutch pedal. After the vehicle stops, shift into R (Reverse). Slowly let up on the clutch pedal as you press the accelerator pedal. If it is hard to shift, let the shift lever return to

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Shift Speeds

Drive Systems

{ Warning If you skip a gear when downshifting, you could lose control of the vehicle. You could injure yourself or others. Do not shift down more than one gear at a time when downshifting.

Four-Wheel Drive If equipped, four-wheel drive engages the front axle for extra traction. Read the appropriate section for transfer case operation before using.

Caution

Do not drive on clean, dry pavement in 4 m and 4 n (if equipped) for an extended period of time. These conditions may cause premature wear on the vehicle’s powertrain.

Driving on clean, dry pavement in four-wheel drive may: . Cause a vibration to be felt in

the steering system.

. Cause tires to wear faster. . Make the transfer case harder to shift, and cause it to run noisier.

{ Warning

Shifting the transfer case to N (Neutral) can cause the vehicle to roll even if the transmission is in P (Park). You or someone else could be seriously injured. Be sure to set the parking brake before placing the transfer case in N (Neutral). See Parking Brake 0 301.

Caution

Extended high-speed operation in 4 n may damage or shorten the life of the drivetrain.

Engagement noise and bump when shifting between 4 n and 4 m or from N (Neutral), with the engine running, is normal. Shifting into 4 n will turn Traction Control and StabiliTrak® off. See Traction Control/Electronic Stability Control 0 303.

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Manual Transfer Case

Move the lever to shift into and out of four-wheel drive.

An indicator light comes on when four-wheel drive is engaged. See Four-Wheel-Drive Light 0 143.

N (Neutral) : Use only when the vehicle needs to be towed. See Recreational Vehicle Towing 0 441
or Towing the Vehicle 0 441. 2 m (Two-Wheel Drive High) : Use this setting for driving on most streets and highways. The front axle is not engaged. This setting provides the best fuel economy. 4 n (Four-Wheel Drive Low) : This setting also engages the front axle and delivers extra torque. Choose 4
n if driving off-road in deep sand, deep mud, or deep snow, and while climbing or descending steep hills. When engaged, keep vehicle speed below 72 km/h (45 mph). 4 m (Four-Wheel Drive High) : Use this setting when extra traction is needed. The front axle engages and helps when driving on snowy or icy roads, when off-roading, or when plowing snow.

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The vehicle can be shifted between 2 m and 4 m while the vehicle is moving. In extremely cold weather, it may be necessary to stop or slow the vehicle to shift into 4 m. Using the Manual Transfer Case . Use quick motions to shift into or

out of 4 n or N (Neutral).

. Shifting may be harder when the vehicle is cold, but will return to normal once warmed up.

. Four-wheel drive reduces fuel

economy.

Shifting from 2 m to 4 m . Shifts can be made at any

vehicle speed.

. Shift in one continuous motion. . Shifting while the vehicle is in

motion may require that moderate force be applied to the shift lever before 4 m can be engaged, especially in cold weather.

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In extremely cold weather, it may be necessary to slow or stop the vehicle to shift.

. While in 4 m, the vehicle can be driven at any posted legal speed limit.

Shifting In or Out of 4 n

Caution

Shifting the transfer case into 4 n while moving at speeds faster than 5 km/h (3 mph) may cause premature wear to the transfer case, and may cause the gears to grind.

1.

If possible, shift with the vehicle moving 5 km/h (3 mph) or less.

2. Shift the transmission into

N (Neutral).

3. Shift the transfer case shift

lever in one continuous motion.

4. Shifting with the vehicle at a

stop may be more difficult. It is possible that the shift will not

complete and the transfer case will remain in N (Neutral). This is normal. To complete the shift, with the engine running, shift the transmission to D (Drive) and back to N (Neutral), and reattempt the transfer case shift.

Shifting In or Out of Neutral 1. Have the engine running. 2. Set the parking brake. Press

and hold the brake pedal. See Parking Brake 0 301.

3. Place the transmission into

N (Neutral).

4. Shift the transfer case lever in one continuous motion into or out of N (Neutral).

Electronic Transfer Case

Use the transfer case knob, next to the steering wheel, to shift into and out of four-wheel drive for extra traction. Indicator lights on the knob show which setting the transfer case is in. The N (Neutral) indicator is on the face of the knob. The indicator lights display briefly when the ignition is turned on, and one will stay on. If the lights display momentarily when the ignition is in ON/RUN, but none stay on, the knob may have been turned while the vehicle was off. To see the indicator, turn the

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knob to another position so that it matches the actual transfer case setting. If no lights display, take the vehicle to your dealer for service. An indicator light flashes while shifting and until the shift is complete. If the transfer case cannot complete a requested shift, it will return to the last chosen setting. Turn the control back to the previous setting to see the indicator light.

Caution

Shifting the transmission into gear before the requested mode indicator light has stopped flashing could damage the transfer case.

The settings are: N (Neutral) : Use only when the vehicle needs to be towed. See Recreational Vehicle Towing 0 441
or Towing the Vehicle 0 441.

2 m (Two-Wheel Drive High) : Use for driving on most streets and highways. The front axle is not engaged. This setting provides the best fuel economy. 4 n (Four-Wheel Drive Low) : This setting engages the front axle and delivers extra torque. Choose 4 n if driving off-road in deep sand, deep mud, or deep snow, and while climbing or descending steep hills. When engaged, keep vehicle speed below 72 km/h (45 mph). Shifting into 4 n will turn Traction Control and StabiliTrak off. See Traction Control/Electronic Stability Control 0 303. 4 m (Four-Wheel Drive High) : Use when extra traction is needed. The front axle engages and helps when driving on snowy or icy roads, when off-roading, or when plowing snow. The vehicle can be shifted from 2 m to 4 m while the vehicle is moving.

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Shifting Into 4 m Turn the knob to 4 m at any speed up to 121 km/h (75 mph), except from 4 n. The indicator light will flash while shifting and will remain on the selected setting. Shifting Into 2 m Turn the knob to 2 m at any speed, except when shifting from 4 n. Shifting Into 4 n When 4 n is engaged, vehicle speed should be kept below 72 km/h (45 mph). 1. The ignition must be in ON/

RUN and the vehicle must be stopped or moving less than 5 km/h (3 mph) with the transmission in N (Neutral). It is best for the vehicle to be moving 1.6 to 3.2 km/h (1 to 2 mph).

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2. Turn the knob to 4 n. Wait for the 4 n indicator light to stop flashing before shifting the transmission into gear.

If the transmission is in gear and/or moving more than 5 km/h (3 mph), the 4 n indicator light will flash for 30 seconds and not complete the shift. After 30 seconds the transfer case will shift to 4 m. Turn the knob to 4 m to see the indicator. With the vehicle moving less than 5 km/h (3 mph), and the transmission in N (Neutral), attempt the shift again. Shifting Out of 4 n 1. To shift out of 4 n the vehicle must be stopped or moving less than 5 km/h (3 mph) with the transmission in N (Neutral) and the ignition in ON/RUN. It is best for the vehicle to be moving 1.6 to 3.2 km/h (1 to 2 mph).

2. Turn the knob to 4 m or 2 m.

Wait for the 4 m or 2 m indicator light to stop flashing before shifting the transmission into gear.

If the transmission is in gear and/or moving more than 5 km/h (3 mph), the 4 m or 2 m indicator light will flash for 30 seconds, but will not complete the shift. With the vehicle moving less than 5 km/h (3 mph), and the transmission in N (Neutral), attempt the shift again.

Shifting Into N (Neutral) To shift: 1. Park the vehicle on a level

surface.

2. Set the parking brake and press and hold the brake pedal. See Parking Brake 0 301.

3. Start the vehicle or turn the

ignition to ON/RUN.

4. Shift the transmission to

N (Neutral).

5. Shift the transfer case to 2 m.

6. Turn the transfer case knob

clockwise to N (Neutral) until it stops and hold it there until the N (Neutral) light starts blinking. This will take at least 10 seconds. Then slowly release the dial to the 4 n position. The N (Neutral) light will come on when the transfer case shift to N (Neutral) is complete.

7. With the engine running, verify

that the transfer case is in N (Neutral) by shifting the transmission to R (Reverse), then to D (Drive). There should be no movement of the vehicle while shifting the transmission.

8. Turn the engine off, and the

ignition to ACC/ACCESSORY.

9. Place the transmission shift

lever in P (Park). See Recreational Vehicle Towing 0 441.

10. Turn the ignition to LOCK/OFF.

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Shifting Out of N (Neutral) To shift: 1. Set the parking brake and

apply the brake pedal.

2. Turn the ignition to ON/RUN

with the engine off.

3. Shift the transmission to

N (Neutral).

4. Turn the transfer case knob to

2 m. After the transfer case has shifted out of N (Neutral), the N (Neutral) light will go out. 5. Release the parking brake.

Caution

Shifting the transmission into gear before the requested mode indicator light has stopped flashing could damage the transfer case.

6. Start the engine and shift the

transmission to the desired gear.

Automatic Transfer Case

Use the transfer case knob next to the steering wheel to shift into and out of four-wheel drive. Indicator lights display which setting the transfer case is in. N (Neutral) is indicated on the knob. The indicator lights will display briefly when the ignition is turned on and one will stay on. If the lights display momentarily when the ignition is in ON/RUN, but none stay on, the knob may have been turned while the vehicle was off. To see the indicator, turn the knob to another position so that it matches the

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actual transfer case setting. If no lights display, take the vehicle to your dealer for service. An indicator light flashes while shifting the transfer case and remains illuminated when the shift is complete. If the transfer case cannot make a requested shift, it will return to the last chosen setting. Turn the knob back to the previous transfer case setting to see the indicator. The settings are: N (Neutral) : Use only when the vehicle needs to be towed. See Recreational Vehicle Towing 0 441
or Towing the Vehicle 0 441. 2 m (Two-Wheel Drive High) : Use for driving on most streets and highways. The front axle is not engaged. This setting provides the best fuel economy. AUTO (Automatic Four-Wheel Drive) : Use when road surface traction conditions are variable. When driving in AUTO, the front axle is engaged, and the vehicle's power is sent to the front and rear

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wheels automatically based on driving conditions. This setting provides slightly lower fuel economy than 2 m. Do not use AUTO mode to park on a steep grade with poor traction such as ice, snow, mud, or gravel. In AUTO mode only the rear wheels will hold the vehicle from sliding when parked. If parking on a steep grade, use 4 m to keep all four wheels engaged. 4 m (Four-Wheel Drive High) : Use this position when extra traction is needed, such as when driving on snowy or icy roads, when off-roading, or when plowing snow. 4 n (Four-Wheel Drive Low) : This setting engages the front axle and delivers extra torque. Choose 4 n when driving off-road in deep sand, deep mud, or deep snow, and while climbing or descending steep hills. Shifting into 4 n will turn Traction Control and StabiliTrak off. See Traction Control/Electronic Stability Control 0 303.

Shifting Into 4 m or AUTO Turn the knob to the 4 m or AUTO position at any speed, except from 4
n. The indicator light will flash while shifting and will remain on when the shift is completed. Shifting Into 2 m Turn the knob to 2 m at any speed, except when shifting from 4 n. The indicator light will flash while shifting and will remain on when the shift is completed. Shifting Into 4 n When 4 n is engaged, keep vehicle speed below 72 km/h (45 mph). To shift: 1. The ignition must be in ON/

RUN and the vehicle must be stopped or moving less than 5 km/h (3 mph) with the transmission in N (Neutral). It is best for the vehicle to be moving 1.6 to 3.2 km/h (1 to 2 mph).

2. Turn the knob to 4 n. Wait for the 4 n indicator light to stop flashing before shifting the transmission into gear.

Caution

Shifting the transmission into gear before the requested mode indicator light has stopped flashing could damage the transfer case.

If the transmission is in gear and/or moving more than 5 km/h (3 mph), the 4 n indicator light will flash for 30 seconds and not complete the shift. After 30 seconds the transfer case will shift to 4 m. Turn the knob to 4 m to display the indicator. With the vehicle moving less than 5 km/h (3 mph), and the transmission in N (Neutral), attempt the shift again.

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Shifting Out of 4 n To shift: 1. The vehicle must be stopped or

moving less than 5 km/h (3 mph) with the transmission in N (Neutral) and the ignition in ON/RUN. It is best for the vehicle to be moving 1.6 to 3.2 km/h (1 to 2 mph). 2. Turn the knob to 4 m, AUTO,

or 2 m. Wait for the 4 m, AUTO, or 2 m indicator light to stop flashing before shifting the transmission into gear.

Caution

Shifting the transmission into gear before the requested mode indicator light has stopped flashing could damage the transfer case.

If the transmission is in gear and/or moving more than 5 km/h (3 mph), the 4 m, AUTO, or 2 m indicator light will flash for 30 seconds but will not

complete the shift. With the vehicle moving less than 5 km/h (3 mph), and the transmission in N (Neutral), attempt the shift again.

Shifting Into N (Neutral) To shift into N (Neutral): 1. Park the vehicle on a level

surface.

2. Set the parking brake and press and hold the brake pedal. See Parking Brake 0 301.

3. Start the vehicle or turn the

ignition to ON/RUN.

4. Shift the transmission to

N (Neutral).

5. Shift the transfer case to 2 m. 6. Turn the transfer case knob

clockwise to N (Neutral) until it stops and hold it there until the N (Neutral) light starts blinking. This will take at least 10 seconds. Then slowly release the dial to the 4 n position. The N (Neutral) light

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will come on when the transfer case shift to N (Neutral) is complete.

7. With the engine running, verify

that the transfer case is in N (Neutral) by shifting the transmission to R (Reverse), then shift the transmission to D (Drive). There should be no movement of the vehicle while shifting the transmission.

8. Turn the engine off, and the

ignition to ACC/ACCESSORY.

9. Place the transmission shift

lever in P (Park). See Recreational Vehicle Towing 0 441.

10. Turn the ignition to LOCK/OFF.

Shifting Out of N (Neutral) To shift out of N (Neutral): 1. Set the parking brake and

apply the brake pedal.

2. Turn the ignition to ON/RUN

with the engine off.

3. Shift the transmission to

N (Neutral).

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4. Turn the transfer case knob to

the desired setting. After the transfer case has shifted out of N (Neutral), the N (Neutral) light will go out. 5. Release the parking brake. 6. Start the engine and shift the

transmission to the desired gear.

Brakes

Antilock Brake System (ABS) This vehicle has ABS, an advanced electronic braking system that helps prevent a braking skid. When the vehicle begins to drive away, ABS checks itself. A momentary motor or clicking noise might be heard while this test is going on, and it might even be noticed that the brake pedal moves a little. This is normal.

If there is a problem with ABS, this warning light stays on. See Antilock Brake System (ABS) Warning Light 0 143. If driving safely on a wet road and it becomes necessary to slam on the brakes and continue braking to

avoid a sudden obstacle, a computer senses the wheels are slowing down. If one of the wheels is about to stop rolling, the computer will separately work the brakes at each wheel. ABS can change the brake pressure to each wheel, as required, faster than any driver could. This can help you steer around the obstacle while braking hard. As the brakes are applied, the computer keeps receiving updates on wheel speed and controls braking pressure accordingly. Remember: ABS does not change the time needed to get a foot up to the brake pedal or always decrease stopping distance. If you get too close to the vehicle in front of you, there will not be enough time to apply the brakes if that vehicle suddenly slows or stops. Always leave enough room up ahead to stop, even with ABS.

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Using ABS Do not pump the brakes. Just hold the brake pedal down firmly and let ABS work. You may hear the ABS pump or motor operating and feel the brake pedal pulsate. This is normal. Braking in Emergencies ABS allows you to steer and brake at the same time. In many emergencies, steering can help more than even the very best braking.

Parking Brake

For vehicles without a release handle, set the parking brake by holding the regular brake pedal down, then pushing down the parking brake pedal. If the ignition is on, the brake system warning light will come on. See Brake System Warning Light 0 142.

Caution

Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts. Make sure that the parking brake is fully released and the brake warning light is off before driving.

To release the parking brake, hold the regular brake pedal down, then push down momentarily on the parking brake pedal until you feel the pedal release. Slowly pull your foot up off the parking brake pedal. If the parking brake is not released when you begin to drive, the brake

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system warning light will flash and a chime will sound warning you that the parking brake is still on. If you are towing a trailer and are parking on a hill, see Driving Characteristics and Towing Tips 0 322.

For vehicles with a release handle, set the parking brake by holding the regular brake pedal down, then pushing down the parking brake pedal. If the ignition is on, the brake system warning light will come on. See Brake System Warning Light 0 142.

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A chime sounds and the warning light flashes when the parking brake is applied and the vehicle is moving at least 8 km/h (5 mph). To release the parking brake, hold the regular brake pedal down. Then pull the bottom edge of the lever with the parking brake symbol, located to the right of the steering column. If the ignition is on when the parking brake is released, the brake system warning light goes off.

Caution

Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts. Make sure that the parking brake is fully released and the brake warning light is off before driving.

If you are towing a trailer and are parking on any hill, see Driving Characteristics and Towing Tips 0 322.

Brake Assist The Brake Assist feature is designed to assist the driver in stopping or decreasing vehicle speed in emergency driving conditions. This feature uses the stability system hydraulic brake control module to supplement the power brake system under conditions where the driver has quickly and forcefully applied the brake pedal in an attempt to quickly stop or slow down the vehicle. The stability system hydraulic brake control module increases brake pressure at each corner of the vehicle until the ABS activates. Minor brake pedal pulsation or pedal movement during this time is normal and the driver should continue to apply the brake pedal as the driving situation dictates The Brake Assist feature will automatically disengage when the brake pedal is released or brake pedal pressure is quickly decreased.

Hill Start Assist (HSA) This vehicle has an HSA feature, which may be useful when the vehicle is stopped on a grade. This feature is designed to prevent the vehicle from rolling, either forward or rearward, during vehicle drive off. After you completely stop and hold the vehicle in a complete standstill on a grade, HSA will automatically activate. During the transition period between when you release the brake pedal and start to accelerate to drive off on a grade, HSA holds the braking pressure for a maximum of two seconds to ensure that there is no rolling. The brakes will automatically release when the accelerator pedal is applied within the two-second window. If the vehicle is equipped with the Integrated Trailer Brake Control (ITBC) system, HSA may also apply the trailer brakes. It will not activate if the vehicle is in a drive gear and facing downhill or if the vehicle is facing uphill and in R (Reverse). There may be situations on minor

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hills (less than 5% grade) with a loaded vehicle or while pulling a trailer where HSA may activate. If you release the brake pedal and then reapply the brake pedal while HSA is activated, the brake pedal typically feels firmer with less pedal travel.

Ride Control Systems

Traction Control/ Electronic Stability Control

System Operation The vehicle has a Traction Control System (TCS) and StabiliTrak®, an electronic stability control system. These systems help limit wheel spin and assist the driver in maintaining control, especially on slippery road conditions. TCS activates if it senses any of the drive wheels are spinning or beginning to lose traction. When this happens, TCS applies the brakes to the spinning wheels and reduces engine power to limit wheel spin. StabiliTrak activates when the vehicle senses a difference between the intended path and the direction the vehicle is actually traveling. StabiliTrak selectively applies braking pressure to any one of the vehicle wheel brakes to assist the driver in keeping the vehicle on the

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intended path. Trailer Sway Control (TSC) is also on automatically when the vehicle is started. See Trailer Sway Control (TSC) 0 348. If cruise control is being used and traction control or StabiliTrak begins to limit wheel spin, cruise control will disengage. Cruise control may be turned back on when road conditions allow. Both systems come on automatically when the vehicle is started and begins to move. The systems may be heard or felt while they are operating or while performing diagnostic checks. This is normal and does not mean there is a problem with the vehicle. It is recommended to leave both systems on for normal driving conditions, but it may be necessary to turn TCS off if the vehicle gets stuck in sand, mud, ice, or snow. See If the Vehicle Is Stuck 0 266
and “Turning the Systems Off and On” later in this section. When the transfer case (if equipped) is in Four-Wheel Drive Low, the stability system is automatically

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Driving and Operating

disabled, g comes on, and the appropriate message will appear on the DIC. Both traction control and StabiliTrak are automatically disabled in this condition.

The indicator light for both systems is in the instrument cluster. This light will: . Flash when TCS is limiting

wheel spin.

. Flash when StabiliTrak is

activated.

. Turn on and stay on when either

system is not working.

If either system fails to turn on or to activate, a message displays in the Driver Information Center (DIC), and d comes on and stays on to indicate that the system is inactive and is not assisting the driver in

maintaining control. The vehicle is safe to drive, but driving should be adjusted accordingly. If d comes on and stays on: 1. Stop the vehicle. 2. Turn the engine off and wait

15 seconds.

3. Start the engine. Drive the vehicle. If d comes on and stays on, the vehicle may need more time to diagnose the problem. If the condition persists, see your dealer. Turning the Systems Off and On

The button for TCS and StabiliTrak is on the center stack.

Caution

Do not repeatedly brake or accelerate heavily when TCS is off. The vehicle driveline could be damaged.

To turn off only TCS, press and release the g button. The traction off light i displays in the instrument cluster. The appropriate message will display in the DIC. See Ride Control System Messages 0 157. To turn TCS on again, press and release the g button. The traction off light i displayed in the instrument cluster will turn off. If TCS is limiting wheel spin when the g button is pressed, the system will not turn off until the wheels stop spinning. To turn off both TCS and StabiliTrak, press and hold the g button until the traction off light i and the StabiliTrak OFF light g come on and stay on in the instrument

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cluster, then release. The appropriate message will display in the DIC. See Ride Control System Messages 0 157. To turn TCS and StabiliTrak on again, press and release the g button. The traction off light i and the StabiliTrak OFF light g in the instrument cluster turn off. StabiliTrak will automatically turn on if the vehicle exceeds 56 km/h (35 mph). Traction control will remain off. The vehicle has a Trailer Sway Control (TSC) feature and a Hill Start Assist (HSA) feature. See Trailer Sway Control (TSC) 0 348 or Hill Start Assist (HSA) 0 302. Adding accessories can affect the vehicle performance. See Accessories and Modifications 0 356.

Hill Descent Control (HDC) If equipped, HDC can be used when driving downhill. It sets and maintains vehicle speed while descending a very steep incline in a forward or reverse gear. The HDC switch is on the center stack, below the climate controls. Press 5 to enable or disable HDC. Vehicle speed must be below 50 km/h (31 mph).

The HDC light displays on the instrument cluster when enabled. HDC can maintain vehicle speeds between 3 and 22 km/h (2 and 14 mph) on an incline greater than or equal to a 10% grade. A blinking HDC light indicates the system is actively applying the brakes to maintain vehicle speed.

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When HDC is activated, the initial HDC speed is set to the current driving speed. It can be increased or decreased by pressing the +RES or SET- steering wheel controls or by applying the accelerator or brake pedal. This adjusted speed becomes the new set speed. HDC will remain enabled between 22 and 60 km/h (14 and 37 mph); however vehicle speed cannot be set or maintained in this range. It will automatically disable if the vehicle speed is above 80 km/h (50 mph) or above 60 km/h (37 mph) for at least 30 seconds. 5
must be pressed again to re-enable HDC. When enabled, if the vehicle is at a speed above 22 km/h (14 mph) and less than 60 km/h (37 mph), a DIC message will display. See Vehicle Speed Messages 0 162.

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Locking Rear Axle Vehicles with a locking rear axle can give more traction on snow, mud, ice, sand, or gravel. It works like a standard axle most of the time, but when traction is low, this feature will allow the rear wheel with the most traction to move the vehicle.

how cruise control interacts with the Range Selection Mode, Tow/Haul Mode, and Grade Braking systems. If the cruise control is being used and the Traction Control system (TCS) or StabiliTrak begins to limit wheel spin, the cruise control will automatically disengage. See Traction Control/Electronic Stability Control 0 303. When road conditions allow you to safely use it again, cruise control can be turned back on. If the brakes are applied, cruise control disengages.

Cruise Control { Warning

Cruise control can be dangerous where you cannot drive safely at a steady speed. Do not use cruise control on winding roads or in heavy traffic. 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.

With cruise control a speed of about 40 km/h (25 mph) or more can be maintained without keeping your foot on the accelerator. Cruise control does not work at speeds below about 40 km/h (25 mph). If equipped with an Allison or Hydra-Matic 6-speed automatic transmission, see “Tow/Haul Mode Grade Braking” under Tow/Haul Mode 0 290 for an explanation of

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5 (On/Off) : Press to turn the system on or off. The indicator light is white when cruise control is on and turns off when cruise control is off. +RES (Resume/Accelerate) : If there is a set speed in memory, press briefly to resume to that speed or press and hold to accelerate. If cruise control is already active, use to increase vehicle speed. SET− (Set/Coast) : Press briefly to set the speed and activate cruise control. If cruise control is already active, use to decrease vehicle speed. * (Cancel) : Press to disengage cruise control without erasing the set speed from memory.

Setting Cruise Control If 5 is on when not in use, SET− or +RES could get pressed and go into cruise when not desired. Keep 5
off when cruise is not being used. 1. Press 5 to turn the cruise

system on.

2. Get up to the desired speed. 3. Press and release SET−. 4. Remove foot from the

accelerator.

The cruise control indicator on the instrument cluster turns green after cruise control has been set to the desired speed. See Instrument Cluster 0 130.

Resuming a Set Speed If the cruise control is set at a desired speed and then the brakes are applied or * is pressed, the cruise control is disengaged without erasing the set speed from memory. Once the vehicle speed reaches about 40 km/h (25 mph) or more, briefly press the +RES button. The vehicle returns to the previous set speed.

Increasing Speed While Using Cruise Control If the cruise control system is already activated:

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307

. Press and hold the +RES button

until the desired speed is reached, then release it.

. To increase vehicle speed in

small increments, briefly press the +RES button. For each press, the vehicle goes about 1.6 km/h (1 mph) faster.

The speedometer reading can be displayed in either English or metric units. See Instrument Cluster 0 130. The increment value used depends on the units displayed.

Reducing Speed While Using Cruise Control If the cruise control system is already activated: . Press and hold the SET– until

the desired lower speed is reached, then release it.

. To slow down in small

increments, briefly press the SET– button. For each press, the vehicle goes about 1.6 km/h (1 mph) slower.

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The speedometer reading can be displayed in either English or metric units. See Instrument Cluster 0 130. The increment value used depends on the units displayed.

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 will slow down to the previous set cruise speed. While pressing the accelerator pedal or shortly following the release to override cruise control, briefly pressing the SET– button will result in cruise control set to the current vehicle speed.

Using Cruise Control on Hills How well the cruise control works on hills depends on the vehicle speed, the load, and the steepness of the hills. When going up steep hills, pressing the accelerator pedal may be necessary to maintain vehicle speed. While going downhill:

. Vehicles with a 6-speed

automatic transmission and a gasoline engine have Cruise Grade Braking to help maintain driver selected speed. Cruise Grade Braking is enabled when the vehicle is started and cruise control is active. It is not enabled in Range Selection Mode. It assists in maintaining driver selected speed when driving on downhill grades by using the engine and transmission to slow the vehicle. To disable and enable Cruise Grade Braking for the current ignition key cycle, press and hold the Tow/Haul button for five seconds. A DIC message displays. See Transmission Messages 0 160.

. Vehicles with a diesel engine

have Cruise Grade Braking enabled when Tow/Haul Mode is on, the exhaust brake is on, or both are on.

For other forms of descent control, see Hill Descent Control (HDC) 0 305,Automatic Transmission 0 284
, and Tow/Haul Mode 0 290.

Ending Cruise Control There are four ways to end cruise control: . Step lightly on the brake pedal. . Press *. . Shift the transmission to

N (Neutral).

. To turn off cruise control,

press 5.

Erasing Speed Memory The cruise control set speed is erased from memory if 5 is pressed or the ignition is turned off.

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Driver Assistance Systems This vehicle may have features that work together to help avoid crashes or reduce crash damage while driving, backing, and parking. Read this entire section before using these systems.

{ Warning Do not rely on the Driver Assistance Systems. These systems do not replace the need for paying attention and driving safely. You may not hear or feel alerts or warnings provided by these systems. Failure to use proper care when driving may result in injury, death, or vehicle damage. See Defensive Driving 0 256. Under many conditions, these systems will not:

(Continued)

Warning (Continued)

. Detect children,

pedestrians, bicyclists, or animals.

. Detect vehicles or objects outside the area monitored by the system.

. Work at all driving speeds. . Warn you or provide you

with enough time to avoid a crash.

. Work under poor visibility or

bad weather conditions.

. Work if the detection sensor is not cleaned or is covered by ice, snow, mud, or dirt.

Complete attention is always required while driving, and you should be ready to take action and apply the brakes and/or steer the vehicle to avoid crashes.

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Audible or Safety Alert Seat Some driver assistance features alert the driver of obstacles by beeping. To change the volume of the warning chime, see “Comfort and Convenience” under Vehicle Personalization 0 163. If equipped with the Safety Alert Seat, the driver seat cushion may provide a vibrating pulse alert instead of beeping. To change this, see “Collision/Detection Systems” under Vehicle Personalization 0 163.

Assistance Systems for Parking or Backing If equipped, the Rear Vision Camera (RVC), Rear Parking Assist (RPA), and Front Parking Assist (FPA) may help the driver park or avoid objects. Always check around the vehicle when parking or backing. The RVC and RPA will not work properly if the tailgate is down. If the tailgate is down, do not use these systems.

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Rear Vision Camera (RVC) When the vehicle is shifted into R (Reverse), the RVC displays an image of the area behind the vehicle in the center stack display. The previous screen displays when the vehicle is shifted out of R (Reverse) after a short delay. To return to the previous screen sooner, press a button on the infotainment system, shift into P (Park), or reach a vehicle speed of 8 km/h (5 mph).

1. View Displayed by the

Camera

1. View Displayed by the

Camera

2. Corners of the Rear Bumper Displayed images may be farther or closer than they appear. The area displayed is limited and objects that are close to either corner of the bumper or under the bumper do not display. A warning triangle may display on the RVC screen to show that RPA has detected an object. This triangle changes from amber to red and increases in size the closer the object.

{ Warning

The camera(s) do not display children, pedestrians, bicyclists, crossing traffic, animals, or any other object outside of the cameras’ field of view, below the bumper, or under the vehicle. Shown distances may be different from actual distances. Do not drive or park the vehicle using only these camera(s). Always check behind and around the vehicle before driving. Failure to use proper care may result in injury, death, or vehicle damage.

Parking Assist With RPA, and if equipped with FPA, as the vehicle moves at speeds of less than 8 km/h (5 mph) the sensors on the bumpers may detect objects up to 2.5 m (8 ft) behind and 1.2 m (4 ft) in front of the vehicle within a zone 25 cm (10 in) high off the ground and below bumper level. These detection distances may be shorter during warmer or humid

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weather. Blocked sensors will not detect objects and can also cause false detections. Keep the sensors clean of mud, dirt, snow, ice, and slush; and clean sensors after a car wash in freezing temperatures.

{ Warning

The parking assist system does not detect children, pedestrians, bicyclists, animals, or objects located below the bumper or that are too close or too far from the vehicle. It is not available at speeds greater than 8 km/h (5 mph). To prevent injury, death, or vehicle damage, even with parking assist, always check the area around the vehicle and check all mirrors before moving forward or backing.

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311

Safety Alert Seat will pulse five times. Beeps for FPA are higher pitched than for RPA. Turning the Features On or Off

The instrument cluster may have a parking assist display with bars that show “distance to object” and object location information for the Parking Assist system. As the object gets closer, more bars light up and the bars change color from yellow to amber to red. When an object is first detected in the rear, one beep will be heard from the rear, or both sides of the Safety Alert Seat will pulse two times. When an object is very close (<0.6 m (2 ft) in the vehicle rear, or <0.3 m (1 ft) in the vehicle front), a continuous beep will sound from the front or rear, or both sides of the

The X button on the center stack is used to turn on or off the Front and Rear Parking Assist. The indicator light in the button comes on when the features are on and turns off when the features have been disabled. Front and Rear Parking Assist can be turned off, on, or on with towbar through vehicle personalization. See “Park Assist” under Vehicle Personalization 0 163. If the parking assist is turned off through vehicle personalization, the parking assist button on the center stack will be disabled. To turn the parking assist on again, select On in the vehicle personalization menu. The On with

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Towbar setting allows for the parking assist to work properly with a small item attached to the trailer hitch. Turn off parking assist when towing a trailer. To turn the rear parking assist symbols or guidance lines on or off, see “Rear Camera” under Vehicle Personalization 0 163. Disconnecting the Rear Vision Camera (RVC) The RVC must be disconnected if the tailgate needs to be removed. The RVC is disconnected by removing the connector from the electrical junction block mounted on the left side of the cross member of the vehicle frame. After disconnecting, the cap mounted next to the camera connector must be relocated so that the open terminals on the junction block are covered.

Assistance Systems for Driving If equipped, when driving the vehicle in a forward gear, Forward Collision Alert (FCA), Lane Departure Warning (LDW), and/or Lane Keep Assist (LKA) can help to avoid a crash or reduce crash damage.

Forward Collision Alert (FCA) System If equipped, the FCA system may help to avoid or reduce the harm caused by front-end crashes. When approaching a vehicle ahead too quickly, FCA provides a red flashing alert on the windshield and rapidly beeps or pulses the driver seat. FCA also lights an amber visual alert if following another vehicle much too closely. FCA detects vehicles within a distance of approximately 60 m (197 ft) and operates at speeds above 40 km/h (25 mph).

{ Warning

FCA is a warning system and does not apply the brakes. When approaching a slower-moving or stopped vehicle ahead too rapidly, or when following a vehicle too closely, FCA may not provide a warning with enough time to help avoid a crash. FCA does not warn of pedestrians, animals, signs, guardrails, bridges, construction barrels, or other objects. Be ready to take action and apply the brakes. For more information, see Defensive Driving 0 256.

FCA can be disabled with the FCA steering wheel control. Detecting the Vehicle Ahead

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FCA warnings will not occur unless the FCA system detects a vehicle ahead. When a vehicle is detected, the vehicle ahead indicator will display green. Vehicles may not be detected on curves, highway exit ramps, or hills, due to poor visibility; or if a vehicle ahead is partially blocked by pedestrians or other objects. FCA will not detect another vehicle ahead until it is completely in the driving lane.

{ Warning

FCA does not provide a warning to help avoid a crash, unless it detects a vehicle. FCA may not detect a vehicle ahead if the FCA sensor is blocked by dirt, snow, or ice, or if the windshield is damaged. It may also not detect a vehicle on winding or hilly roads, or in conditions that can limit visibility such as fog, rain, or snow, or if the headlamps or windshield are not cleaned or in

(Continued)

Warning (Continued)

proper condition. Keep the windshield, headlamps, and FCA sensors clean and in good repair.

Collision Alert

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313

braking to occur more rapidly which can cause a brief, mild deceleration. Continue to apply the brake pedal as needed. Cruise control may be disengaged when the Collision Alert occurs.

Tailgating Alert

The vehicle ahead indicator will display amber when you are following a detected vehicle ahead much too closely.

When your vehicle approaches another detected vehicle too rapidly, the red FCA display will flash on the windshield. Also, eight rapid high-pitched beeps will sound from the front, or both sides of the Safety Alert Seat will pulse five times. When this Collision Alert occurs, the brake system may prepare for driver

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Selecting the Alert Timing

The Collision Alert control is on the steering wheel. Press [ to set the FCA timing to Far, Medium, Near, or Off. The first button press shows the current setting on the DIC. Additional button presses will change this setting. The chosen setting will remain until it is changed and will affect the timing of both the Collision Alert and the Tailgating Alert features. The timing of both alerts will vary based on vehicle speed. The faster the vehicle speed, the farther away the alert will occur. Consider traffic and weather conditions when selecting the alert

timing. The range of selectable alert timing may not be appropriate for all drivers and driving conditions. Unnecessary Alerts FCA may provide unnecessary alerts for turning vehicles, vehicles in other lanes, objects that are not vehicles, or shadows. These alerts are normal operation and the vehicle does not need service. Cleaning the System If the FCA system does not seem to operate properly, cleaning the outside of the windshield in front of the rearview mirror, and cleaning the front of the vehicle where radar sensors are located, may correct the issue.

Lane Departure Warning (LDW) (2500/3500 Series) If equipped, LDW may help avoid crashes due to unintentional lane departures. It may provide an alert if the vehicle is crossing a lane marking without using a turn signal in that direction. LDW uses a

camera sensor to detect the lane markings at speeds of 56 km/h (35 mph) or greater.

{ Warning

The LDW system does not steer the vehicle. The LDW system may not:

. Provide enough time to

avoid a crash.

. Detect lane markings under

poor weather or visibility conditions. This can occur if the windshield or headlamps are blocked by dirt, snow, or ice; if they are not in proper condition; or if the sun shines directly into the camera.

. Detect road edges. . Detect lanes on winding or

hilly roads.

If LDW only detects lane markings on one side of the road, it will only warn you when

(Continued)

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Warning (Continued)

departing the lane on the side where it has detected a lane marking. Always keep your attention on the road and maintain proper vehicle position within the lane, or vehicle damage, injury, or death could occur. Always keep the windshield, headlamps, and camera sensors clean and in good repair. Do not use LDW in bad weather conditions.

How the System Works The LDW camera sensor is on the windshield ahead of the rearview mirror. To turn LDW on and off, press @ on the center stack. The control indicator will light when LDW is on.

When LDW is on, @ is green if LDW is available to warn of a lane departure. If the vehicle crosses a detected lane marking without using the turn signal in that direction, @ changes to amber and flashes. Additionally, there will be three beeps, or the driver seat will pulse three times on the right or left, depending on the lane departure direction. When the System Does Not Seem to Work Properly The system may not detect lanes as well when there are: . Close vehicles ahead. . Sudden lighting changes, such

as when driving through tunnels.

. Banked roads.

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If the LDW system is not functioning properly when lane markings are clearly visible, cleaning the windshield may help. LDW alerts may occur due to tar marks, shadows, cracks in the road, temporary or construction lane markings, or other road imperfections. This is normal system operation; the vehicle does not need service. Turn LDW off if these conditions continue.

Lane Keep Assist (LKA) (1500 Series) If equipped, LKA may help avoid crashes due to unintentional lane departures. It may assist by gently turning the steering wheel if the vehicle approaches a detected lane marking without using a turn signal in that direction. It may also provide a Lane Departure Warning (LDW) system alert as the lane marking is crossed. The LKA system will not assist or provide an LDW alert if it detects that you are actively steering. Override LKA by turning the steering wheel. LKA uses a

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camera to detect lane markings between 60 km/h (37 mph) and 180 km/h (112 mph).

{ Warning The LKA system does not continuously steer the vehicle. It may not keep the vehicle in the lane or give a Lane Departure Warning (LDW) alert, even if a lane marking is detected. The LKA and LDW systems may not:

. Provide an alert or enough

steering assist to avoid a lane departure or crash.

. Detect lane markings under

poor weather or visibility conditions. This can occur if the windshield or headlamps are blocked by dirt, snow, or ice, if they are not in proper condition, or if the sun shines directly into the camera.

. Detect road edges.

(Continued)

Warning (Continued)

. Detect lanes on winding or

hilly roads.

If LKA only detects lane markings on one side of the road, it will only assist or provide an LDW alert when approaching the lane on the side where it has detected a lane marking. Even with LKA and LDW, you must steer the vehicle. Always keep your attention on the road and maintain proper vehicle position within the lane, or vehicle damage, injury, or death could occur. Always keep the windshield, headlamps, and camera sensors clean and in good repair. Do not use LKA in bad weather conditions.

{ Warning

Using LKA while towing a trailer or on slippery roads could cause loss of control of the vehicle and a crash. Turn the system off.

How the System Works The LKA camera sensor is on the windshield ahead of the rearview mirror. To turn LKA on and off, press A on the center stack.

When on, A is green if LKA is available to assist and provide LDW alerts. It may assist by gently turning the steering wheel and display A as amber if the vehicle approaches a detected lane marking without using a turn signal in that

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If the LKA system is not functioning properly when lane markings are clearly visible, cleaning the windshield may help. LKA assistance and/or LDW alerts may occur due to tar marks, shadows, cracks in the road, temporary or construction lane markings, or other road imperfections. This is normal system operation; the vehicle does not need service. Turn LKA off if these conditions continue.

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Fuel For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax diesel supplement. Use of the recommended fuel is an important part of the proper maintenance of this vehicle. When driving in the U.S. and Canada, to help keep the engine clean and maintain optimum vehicle performance, we recommend using TOP TIER Detergent Gasolines. See www.toptiergas.com for a list of TOP TIER Detergent Gasolines.

direction. It may also provide an LDW alert by flashing A amber as the lane marking is crossed. Additionally, there will be three beeps, or the driver seat will pulse three times, on the right or left, depending on the lane departure direction. The LKA system does not continuously steer the vehicle. If LKA does not detect active driver steering, an alert and chime may be provided. Move the steering wheel to dismiss. When the System Does Not Seem to Work Properly The system performance may be affected by: . Close vehicles ahead. . Sudden lighting changes, such

as when driving through tunnels.

. Banked roads. . Roads with poor lane markings,

such as two-lane roads.

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If the vehicle has a yellow fuel cap, E85 or FlexFuel can be used in the vehicle. See E85 or FlexFuel 0 319. For all vehicles except those with the 6.2L V8 engine, use regular unleaded gasoline meeting ASTM specification D4814 with a posted octane rating of 87 or higher. Do not use gasoline with an octane rating below 87, as it may cause engine damage and will lower fuel economy. If the vehicle has the 6.2L V8 engine (VIN Code J), use premium unleaded gasoline meeting ASTM specification D4814 with a posted octane rating of 91 or higher. Regular unleaded gasoline rated at 87 octane or higher can be used, but acceleration and fuel economy will be reduced, and an audible knocking noise may be heard. If this occurs, use a gasoline rated at 91 octane or higher as soon as possible. Otherwise, the engine could be damaged. If heavy knocking is heard when using gasoline with a 91 octane rating or higher, the engine needs service.

Use of Seasonal Fuels Use summer and winter fuels in the appropriate season. The fuels industry automatically modifies the fuel for the appropriate season. If fuel is left in the vehicle tank for long periods of time, driving or starting could be affected. Drive the vehicle until the fuel is at one-half tank or less, then refuel with the current seasonal fuel.

Prohibited Fuels Gasolines containing oxygenates such as ethers and ethanol, as well as reformulated gasolines, are available in some cities. If these gasolines comply with the previously described specification, then they are acceptable to use. However, E85 (85% ethanol) and other fuels containing more than 15% ethanol must be used only in FlexFuel vehicles.

Caution

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, mainly high octane racing gasolines, can contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). Do not use gasolines and/or fuel additives with MMT as they can reduce spark plug life and affect emission control system performance. The malfunction indicator lamp may turn on. If this occurs, see your dealer for service.

California Fuel Requirements If the vehicle is certified to meet California Emissions Standards, it is designed to operate on fuels that

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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 may not pass a smog-check test. See Malfunction Indicator Lamp (Check Engine Light) 0 141. 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 may not be covered by the vehicle warranty.

Fuels in Foreign Countries If planning to drive in countries outside the U.S. or Canada, the proper fuel might be hard to find. Check regional auto club or fuel retail brand websites for availability in the country where driving. Never use leaded gasoline, fuel containing methanol, manganese, or any other

fuel not recommended. Costly repairs caused by use of improper fuel would not be covered by the vehicle warranty.

Fuel Additives To keep fuel systems clean, TOP TIER Detergent Gasoline is recommended. See Fuel 0 317. If TOP TIER Detergent Gasoline is not available, one bottle of Fuel System Treatment PLUS added to