OnStar

See also:

Grade Braking
The Grade Braking shift modes can be activated by pressing the button on the end of the shift control lever. While in Range Selection Mode, Grade Braking is deactivated allowing the driver to sele ...

Turning the System On and Off
Press this button, located next to the radio, to disable URPA. The indicator light will come on and PARK ASSIST OFF displays on the Driver Information Center (DIC). See Object Detection System Me ...

Extending Engine Run Time
For a 10-minute extension, repeat Steps 1 and 2 while the engine is still running. The remote start can only be extended once. When the remote start is extended, the second 10-minute period will s ...