See also:

Using the Dial Command
1. Press . ► For vehicles without a navigation system, the system responds “Ready,” followed by a tone. ► For vehicles with a navigation system, the system responds with a tone. Aft ...

Service Parts Identification Label
This label, on the spare tire cover, has the following information: • Vehicle Identification Number (VIN) • Model designation • Paint information • Production options and special equipme ...

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 v ...