Power Outlets
The accessory power outlets can be used to connect electrical equipment, such as a cell phone or MP3 player.
There are four accessory power outlets in the following locations: below the CD slot, inside the center console storage, on the rear of the center console storage, and in the rear cargo compartment.
To use the outlets, remove the cover and close when not in use.
See also:
Power Liftgate
On vehicles with a power liftgate, the vehicle must be in P (Park) to operate.
The taillamps flash when the power liftgate moves.
WARNING
You or others could be injured if caught in the path of th ...
Towing with a Stability Control System
When towing, the sound of the stability control system might be heard. The system is reacting to the vehicle movement caused by the trailer, which mainly occurs during cornering. This is normal when t ...
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 ...





