2018 GMC SIERRA service

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The myGMC mobile app connects owners with a compatible mobile device to \
a variety of vehicle information and services, such as a searchable Owner’s Man\
ual, real-time fuel information, OnStar Vehicle Diagnostic information and Roadside Ass\
istance.
The myGMC mobile app also enables users to send remote commands — inc\
luding remotely starting the vehicle and locking/unlocking the doors — as we\
ll as to locate the vehicle on a map and send destinations to the navigation system (ve\
hicles must be properly equipped).
Download the mobile app from your compatible mobile device’s app stor\
e.
ROADSIDE ASSISTANCE
1-888-881-3302 TTY Users: 1-888-889-2438
As the owner of a new GMC, you are automatically enrolled in the GMC Roa\
dside 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 adv\
isors 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 you\
r vehicle to the nearest GMC dealer for any repairs.
Roadside Assistance and OnStar®
If you require roadside service and have a current OnStar service plan, \
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 lo\
cation so you will get the help you need.
To learn more about OnStar services, press the blue OnStar button, visit onstar.com, call 1-888-4-ONSTAR (1-888-466-7827), or refer to your Owner’s Manual.
GMC OWNER CENTER
Get to know your vehicle inside and out with the GMC Owner Center. Check\
out personalized
information, including an online Owner’s Manual and helpful how-to vi\
deos, track your service
history and warranty status, review your current OnStar Vehicle Diagnost\
ics report (active OnStar account required) and more. Create an account today at my.gmc.com.
MYGMC MOBILE APP
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Certain restrictions, precautions and safety procedures apply to your ve\
hicle. Please read your Owner’s Manual for complete instructions. All information contained in this guide is based \
on the latest information available at the time of printing and is subject to change without notice. Copyright 2017 Gene\
ral Motors. All rights reserved.
We recommend always using ACDelco or genuine GM service parts.