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 ...

Finding a Program Type (PTY) Station(RDS and XM™)
To select and find a desired PTY perform the following: 1. Press the TYPE button to activate program type select mode. P-TYPE and the last selected PTY displays. 2. Turn the TYPE knob or press ...

Auto Door Unlock
This allows selection of which of the doors will automatically unlock when the vehicle is shifted into P (Park). Press SELECT when Auto Door Unlock is highlighted. Turn the Menu knob to selec ...