Unable to Connect to OnStar Message
If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push
to try the call again or try again after driving a few miles into another cellular area.
See also:
Loading Points
A. Primary Load Points
B. Secondary Load Areas
C. Cargo Management Option Holes
Structural members (A) and (B) are included in the pick-up box design.
Additional accessories should use these loa ...
Flash-to-Pass
This feature is used to signal to the vehicle ahead that you want to pass.
If the headlamps are off or in the low-beam position, pull the turn signal lever toward you to momentarily switch to high be ...
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 ...





