OnStar Services

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 ...

High Intensity Discharge (HID) Lighting
WARNING The low beam high intensity discharge lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured. Have your dealer ...

Instrument Panel Fuse Block
The instrument panel fuse block access door is located on the driver side edge of the instrument panel. Pull off the cover to access the fuse block. The vehicle may not be equipped with all of ...