Navigation

OnStar navigation requires the Directions and Connections service plan.

Push Turn-by-Turn Navigation 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:

Vehicle Overview
The GMC Sierra 1500 and Chevrolet Silverado share the same platform, but the GMC product is often positioned as a more upscale offering. Mechanically, the trucks are the same. There might be sligh ...

Power Seat Adjustment
To adjust a power seat, if equipped: • Move the seat forward or rearward by sliding the control forward or rearward. • If available, raise or lower the front or rear part of the seat cushion b ...

How Does an Airbag Restrain?
In moderate to severe frontal or near frontal collisions, even belted occupants can contact the steering wheel or the instrument panel. In moderate to severe side collisions, even belted occupants ...