OnStar Services

See also:

Brake Fluid
The brake master cylinder and, on manual transmission vehicles, the clutch hydraulic system use the same reservoir. See Engine Compartment Overview  for the location of the reservoir. The reser ...

Automatic Climate Control System
For vehicles with this system, it controls the heating, cooling, and ventilation. A. Power B. Temperature Control C. Fan Control D. Air Delivery Mode Control E. Recirculation F. AUTO (Automa ...

Using the Digit Store Command
The digit store command allows a phone number to be stored by entering the digits individually. 1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. 2. ...