See also:

Erasing Speed Memory
The cruise control set speed is erased from memory by pressing or if the ignition is turned off. ...

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 ...

Using Voice Commands During a Planned Route
Cancel Route 1. Push . System responds: “OnStar ready,” then a tone. Say “Cancel route.” System responds: “Would you like to cancel route directions to your destination?” 2. Say “Yes.” System re ...