See also:

Headlamps on Reminder
A reminder tone sounds when the headlamps or parking lamps are manually turned on, if the driver’s door is open and the ignition is in LOCK or ACC. To turn the tone off, turn the knob all the wa ...

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 ...

Mirror Adjustment
Exterior Mirrors Controls for the outside power mirrors are located on the driver door. 1. Turn the control knob to the L (left) or R (right) selecting the driver or passenger mirror. 2. Push the ...