See also:

Instrument Panel Illumination Control
(Instrument Panel Brightness): This feature controls the brightness of the instrument panel lights and is located next to the exterior lamps control. Push the knob to extend out and then it ca ...

Transferring Service
Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has ch ...

EPB Release
To release the EPB, turn the ignition switch to the ON/RUN position, apply and hold the brake pedal, and push down momentarily on the EPB switch. If you attempt to release the EPB without th ...