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:

    Inserting a CD(s) (Six-Disc CD Player)
    LOAD : Press to load CDs into the CD player. This CD player holds up to six CDs. To insert one CD: 1. Press and release the LOAD button. 2. Wait for the message to insert the disc. 3. Load a CD. I ...

    Driver and Passenger Side Temperature Controls
    The driver and passenger side temperature buttons are used to adjust the temperature of the air coming through the system on the driver or passenger side of the vehicle. The temperature can be adjuste ...

    Additional Factors Affecting System Operation
    Safety belts help keep the passenger in position on the seat during vehicle maneuvers and braking, which helps the passenger sensing system maintain the passenger airbag status. See “Safety Belt ...