See also:

Lamp Messages
SERVICE LEFT HEADLAMP ASSEMBLY On some models, this message will be displayed when the left headlamp is out and needs to be serviced. See “LED Lighting” in LED Lighting   for more infor ...

Manual Mode
Driver Shift Control (DSC) The vehicle has Driver Shift Control (DSC). DSC controls the vehicle's transmission and vehicle speed while driving down hill or towing a trailer by allowing you to ...

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 ...