See also:

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 ...

Pairing a Phone
1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. 2. Say “Bluetooth”. The system responds with “Bluetooth ready” followed by a tone. 3. Say � ...

Roadside Assistance and OnStar
If you have an active OnStar subscription, press the Q button and the current GPS location will be sent to an OnStar Advisor who will assess your problem, contact Roadside Assistance, and relay y ...