OnStar Services

See also:

Using Voice Recognition
To use voice recognition, press the button located on the steering wheel. Use the commands below for the various voice features. For additional information, say "Help" while you are in a ...

Sedan or Coupe
To lower one or both of the rear seatbacks: 1. Pull forward on the tab, on the outboard side of the seatback, to unlock the seatback. 2. Fold the seatback down. This allows access to the tr ...

U-Rail
For vehicles with a u-rail system, the fence can be moved to different positions on the u-rail track to secure cargo. Push both adapter buttons to move the adapters (B) on the straight par ...