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 the v ...

Lamps On Reminder
This light comes on whenever the parking lamps are on. See Exterior Lamps Off Reminder for more information. ...

CALIBRATION COMPLETE
This message displays when the compass calibration is complete. See Compass for more information. ...