Customer Information

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Removing the Flat Tire and Installing the Spare Tire
1. Do a safety check before proceeding. See If a Tire Goes Flat on page 10‑58 for more information. 2. If the vehicle has a wheel cover, loosen the plastic nut caps with the wheel wrench. They ...

Replacing LATCH System Parts After a Crash
WARNING A crash can damage the LATCH system in the vehicle. A damaged LATCH system may not properly secure the child restraint, resulting in serious injury or even death in a crash. To help make sure ...

Powertrain details
The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 ...