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 vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push OnStar Additional Information , and an Advisor can run a check.

    See also:

    Traction Control System (TCS)/StabiliTrak® Light
    The Traction Control System (TCS)/StabiliTrak light comes on briefly when the engine is started. If the light does not come on, have the vehicle serviced by the dealer. If the system is workin ...

    Control Buttons
    The buttons used to control the CD/DVD player are: MEM/DVD/AUX: Press to choose between the MEM, CD/DVD, and AUX. : Press to select tracks or to fast forward or rewind within a track. INFO: ...

    Auto Heated Seats
    If equipped and turned on, this feature will automatically activate heated seats at the level required by the interior temperature. The auto heated seats can be turned off by using the heate ...