Introduction
The names, logos, emblems, slogans, vehicle model names, and vehicle body designs appearing in this manual including, but not limited to, GM, the GM logo, GMC, the GMC Truck Emblem, and SIERRA are trademarks and/or service marks of General Motors LLC, its subsidiaries, affiliates, or licensors.
This manual describes features that may or may not be on your specific vehicle either because they are options that you did not purchase or due to changes subsequent to the printing of this owner manual.
Please refer to the purchase documentation relating to your specific vehicle to confirm each of the features found on your vehicle.
For vehicles first sold in Canada, substitute the name “General Motors of Canada Limited” for GMC Division wherever it appears in this manual.
If the vehicle has the Duramax® diesel engine, see the Duramax diesel supplement for additional and specific information on this engine.
If the vehicle is a hybrid, see the hybrid supplement for more information.
Keep this manual in the vehicle for quick reference.
See also:
Extending Engine Run Time
For a 10-minute extension, repeat Steps 1 and 2 while the engine is still running.
The remote start can be extended once.
When the remote start is extended, the second 10 minutes will start immedia ...
Battery Replacement
To change the batteries on the headphones:
1. Turn the screw to loosen the battery door located on the left side of the headphones. Slide the battery door open.
2. Replace the two batteries in the c ...
With Airbag Off Switch
This vehicle has airbags. A rear seat is a safer place to secure a forward-facing child restraint. See Where to Put the Restraint on page 3‑49.
There may be a switch in the glove box that you c ...