tow GMC SIERRA HD 2015 Get To Know Guide

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Instrument Panel
Instrument Cluster Symbols
Audio Next/Previous Favorite Station Controls (behind steering wheel)
Cruise Control/ Collision AlertF/Heated Steering WheelF Buttons
Power Mirror ControlF/Door Lock Switch/Window Buttons
Voice Recognition Buttons/Driver Information Center Controls
Audio Volume Controls (behind steering wheel)
Tilt Steering Wheel Lever
Telescoping Steering Wheel ControlF
Memory Seat ControlsF4WD ControlF
Instrument Panel Illumination Control/Exterior Lamp ControlTow/Haul Button
Driver Information Center
Turn Signal/Windshield Wipers Lever
Integrated Trailer Brake ControlF
Low Fuel
Traction Control Off
Lane Departure Warning
Brake System
Cruise Control Set
StabiliTrak Active
StabiliTrak Off
Security
Tow/Haul Mode
Hill Descent Control
Diesel Exhaust Brake (diesel models only)
Lights On Reminder
Airbag Readiness
Check Engine
Antilock Brake System

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automatIc transmIssIon
IntegrateD traI ler braKe control (Itbc)
DIesel ex Haust braKe (Diesel Models Only)
F Optional equipment
Range Selection Mode
Range Selection Mode allows the driver to select the range of gears desired for the current driving conditions.
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.
Press the Tow/Haul Mode button on the end of the shift lever to turn the system on or off.
See Driving and Operating in your Owner Manual.
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 instrument panel. ITBC information is displayed on the Driver Information Center.
Adjust the Trailer Gain by pressing the +/– adjustment buttons on the control panel.
Slide the lever to the left on the control panel to manually apply the t\
railer brakes.
See Driving and Operating in your Owner Manual.
The engine exhaust brake enhances the vehicle brake system by using engine braking and auto-matically downshifting the transmission, depending on the length of time the brakes are applied, to help slow the vehicle on downhill grades.
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.

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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 Roa\
dside Assistance program for up to 5 years/100,000 miles, whichever occurs first, at no expense to you. This value-added service is intended to provide you with peace o\
f mind as you drive across town or travel the open road.
GMC’s Roadside Assistance toll-free number is staffed by a team of tr\
ained advisors who are available 24 hours a day, 365 days a year, to contact a service prov\
ider 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
The GMC Owner Center, a complimentary service for GMC owners, is a one-s\
top resource designed to enhance your GMC ownership experience. Exclusive member benefits include online service reminders, vehicle maintenance tips, online owner manual,\
special privileges and more. Sign up 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 2013 by Gene\
ral Motors. All rights reserved.
We recommend always using ACDelco or genuine GM service parts.
mygmc anD onstar® mobIle aPP s
The myGMC and OnStar RemoteLink mobile apps connect owners to a variety of vehicle information and services, such as a searchable Owner \
Manual, real-time fuel information and Roadside Assistance, as well as enabling users to perform Remote Keyless Entry transmitter commands, including locking and unlocking the doors and starting the vehicle.
An active OnStar account is required to use the OnStar mobile app. Downl\
oad the mobile apps from your mobile device’s app store. To learn more about OnStar \
services, press the OnStar button, refer to your Owner Manual, call 1-888-466-7827 or visit \
OnStar.com.