Navigation
OnStar navigation requires the Directions and Connections service plan.
Push 
to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to the vehicle from Google Maps™ or MapQuest.com. The OnStar mapping database is continuously updated. Visit www.onstar.com for coverage maps.
See also:
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 ...
Heated and Ventilated Front Seats
WARNING
If you cannot feel temperature change or pain to the skin, the seat heater may cause burns even at low temperatures. To reduce the risk of burns, people with such a condition should use care ...
If a Crash Occurs
If there has been an injury, call emergency services for help. Do not leave the scene of a crash until all matters have been taken care of.
Move the vehicle only if its position puts you in danger, o ...