See also:

Overview
The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck capability combined with greater off-road versatility. It is highlighted by a bold exterior design, enhanced all-terrain ...

Automatic Transmission
The automatic transmission shift lever is located on the console between the seats. P (Park): This position locks the front wheels. Use P (Park) when starting the engine because the vehicle can ...

Hood
To open the hood: 1. Pull the release handle located below the instrument panel to the left of the steering wheel. 2. Move the secondary hood release lever to the right to release the striker. ...