See also:

Power Lumbar
On vehicles with power lumbar, the control is located on the outboard side of the front seats. For vehicles with a two-way lumbar control, press the control top or bottom to increase or decreas ...

Reactivation for Subsequent Owners
Push and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle. The Advisor will update vehicle records and will explain the OnStar service offers and opt ...

Voice Recognition
The voice recognition system uses commands to control the system and dial phone numbers. Noise: The system may not recognize voice commands if there is too much background noise. When to Speak: ...