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Automatic Transmission
Integrated Trailer Brake Control (ITBC)F
Range Selection Mode
Range Selection Mode allows the driver to select the range of gears desired for the cur-rent driving conditions.
The ITBC system can be used to adjust the amount of power output, or Trailer Gain,
available to the trailer brakes. The control panel is located on the left side of the instru-ment panel. ITBC information is displayed on the Driver Information Center.
1. Move the shift lever to the Manual (M) position.
2. Press the + (plus) or – (minus) button on the shift lever to select a lower or higher gear. An M and the current gear will be
displayed on the Driver Information Center.
The transmission will be limited to the gear selected and lower gears. If vehicle speed is too high or too low for the requested gear, the shift will not occur.
Tow/Haul Mode
The Tow/Haul Mode adjusts the transmission shifts to reduce shift cycling, such as when towing or hauling heavy loads or driving on steep grades. When towing, use the Tow/Haul Mode to prevent damage to the engine or transmission.
Press the Tow/Haul Mode button on the end of the shift lever to turn the system on or off.
GMC Trailering Guide App
The free trailering guide app includes maximum trailer weight ratings by model along with trailering information on hitches and equipment, GMC trailering technologies, safe trailering techniques and more. Currently available for the iPad®, download the mobile app from the iPad’s app store.
See Driving and Operating in your Owner Manual.
Adjust the Trailer Gain by pressing the +/– adjustment buttons on the control panel.
Squeeze the levers together on the control panel (left lever does not move) to manually apply the trailer brakes.
See Driving and Operating in your Owner Manual.
F Optional equipment
18
Tire Pressure Monitor (Single Rear Wheel Models Only)
Hill Descent Control sets and maintains vehicle speed from 2–14 mph while descending a steep incline in a forward or reverse gear.
1. Press the Hill Descent Control button on the center of the instrument panel. Vehicle speed must be below 31 mph to enable the system. The Hill Descent Control symbol will illuminate on the instrument cluster.
2. Increase or decrease speed by applying the accelerator or brake pedal or use the Cruise Control +/– buttons on the steering wheel. The adjusted speed becomes the new set speed. The symbol flashes when the system is actively applying the brakes to main-tain vehicle speed.
See Driving and Operating in your Owner Manual.
Hill Descent ControlF (Z71)
The traction control system limits wheelspin and the StabiliTrak® stability control system assists with directional control of the vehicle in difficult
driving conditions. Both systems turn on automatically every time the vehicle is started.
Turning Off Traction Control
Turn off traction control if the vehicle is stuck and rocking the vehicle is required.
Press the Traction Control/StabiliTrak Off button on the center of the instrument panel to turn traction control off or back on. The Traction Control Off light will illuminate on the instrument cluster when the system is off.
Traction Control and StabiliTrak Systems
The Low Tire Pressure warning light on the instrument cluster illuminates when one or more of the vehicle’s tires is significantly underinflated. Fill the tires to the proper tire pressures. The proper tire pressures for the vehicle are listed on the Tire and Loading Information label, located below the driver’s door latch. Current tire pressures can be viewed in the Driver Information Center.
Tire pressure is affected by cold weather and distance driven. If the low tire pressure
warning light illuminates when the vehicle is first started in cooler temperatures and then turns off as the vehicle is driven, check for the proper tire pressures.
Refer to your Owner Manual for additional information about normal monthly tire maintenance.
See Vehicle Care in your Owner Manual.
See Driving and Operating in your Owner Manual.
F Optional equipment
19
Sunroof Controls
The sunroof controls are located on the overhead console.
Power Rear WindowF
SunroofF
SLIDETILT Express Open/
SLIDE TILT
Close
Fully press the rear of the SLIDE switch to express open the sunroof. Gently press and hold the switch to partially open the sunroof.
Fully press the front of the SLIDE switch to express close the sunroof. Gently press and hold the switch to partially close the sunroof.
SLIDE TILTVent/
SLIDE TILT
Close
Press the rear of the TILT switch to vent the sunroof from the closed position.
Press the front of the TILT switch to close the sunroof.
See Keys, Doors and Windows in your Owner Manual.
The power rear window switch is located on the overhead console. Press the switch to open the rear window.
Pull the switch to close the rear window.
Note: The power rear window cannot be operated manually.
See Keys, Doors and Windows in your Owner Manual.
Diesel Exhaust Brake (Diesel Models Only)
The engine exhaust brake enhances the vehicle brake system by automatically downshift-ing the transmission, depending on the length of time the brakes are applied.
Press the Diesel Exhaust Brake button on the center of the instrument panel to turn the system on or off.
See your Duramax Diesel Owner Manual.
Sunshade
Open and close the sunshade manually by pulling it rearward or forward.
F Optional equipment
20
The myGMC mobile app connects owners to a variety of vehicle
info rmation and services, such as a searchable Owner Manual, real-time fuel information and Roadside Assistance.
Download the OnStar RemoteLink mobile app and enjoy select features for five years from date of vehicle delivery. With a compatible mobile device, OnStar subscribers can access many services, including remotely starting/stop-ping the vehicle, locking/unlocking doors, and locating the vehicle on a map (on properly equipped vehicles). To learn more about OnStar services, press the blue OnStar button, call 1-888-4ONSTAR (1-888-466-7827), visit onstar.com or refer to your owner manual.
Download the mobile apps from your compatible mobile device’s app store.
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Roadside Assistance
1-800-GMC-8782 TTY Users: 1-888-889-2438(1-800-462-8782)
As the owner of a new GMC, you are automatically enrolled in the GMC Roadside Assistance program for up to 5 years/60,000 miles, whichever occurs first, at no expense to you. GMC’s Roadside Assistance toll-free number is staffed by a team of trained advi-sors who are available 24 hours a day, 365 days a year, to contact a service provider for light services (fuel delivery, jump-starts, flat tire and lock-outs) or make arrangements to tow your vehicle to the nearest GMC dealer for any repairs.
Roadside Assistance and OnStar®
If you require roadside service and have a current OnStar subscription, press the OnStar button and the vehicle will send your current GPS location to an OnStar Advisor who will speak to you, assess your problem, contact Roadside Assistance and relay your exact loca-tion so you will get the help you need.
GMC Owner Center
Get to know your vehicle inside and out with the GMC Owner Center. Check out personal-ized information, including an online owner manual and helpful how-to videos, track your service history and warranty status, review your current OnStar Vehicle \
Diagnostics report (active OnStar account required) and more. Create an account today at my.gmc.com.
Certain restrictions, precautions and safety procedures apply to your ve\
hicle. Please read your Owner Manual for complete instructions. All information contained herein is based on \
the latest information available at the time of printing and is subject to change without notice. Copyright 2015 General Motors. All rights reserved.
We recommend always using ACDelco or genuine GM service parts.
myGMC and OnStar Mobile Apps
