See also:

Instrument Panel Illumination Control
The brightness of the instrument panel lights and steering wheel controls can be adjusted. (Instrument Panel Brightness): Move and hold the thumbwheel up or down to brighten or dim the lights ...

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 ...

Compass Variance (Zone) Procedure
1. Do not set the compass zone when the vehicle is moving. On an automatic transmission vehicle, only set it when the vehicle is in P (Park). On a manual transmission vehicle, only set it w ...