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:

    Loading and Ejecting Discs
    To load a disc: 1. Turn the ignition on. 2. Insert a disc into the slot. The player pulls it in the rest of the way. If the disc is damaged or improperly loaded, there is an error and the di ...

    Ignition Positions (Key Access)
    The ignition switch has four different positions. Notice: Using a tool to force the key to turn in the ignition could cause damage to the switch or break the key. Use the correct key, make sure i ...

    Certification/Tire Label
    A vehicle specific Certification/Tire label is found on the rear edge of the driver’s door. The label shows the size of your vehicle’s original tires and the inflation pressures needed to obt ...