See also:

Emergency
With Automatic Crash Response, the built-in system can automatically connect to help in a crash even if you cannot ask for it. Push to connect to an Emergency Advisor. GPS technology is used to iden ...

Finding a Category (CAT) Station
CAT (Category): The CAT button is used to find XM stations when the radio is in the XM mode. To find XM channels within a desired category: 1. Press BAND until the XM frequency displays. 2. Press C ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...