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:

    Stopping and Resuming Playback
    To stop playing a DVD without turning off the system, press the button on the remote control, or press the softkey located under the or the tabs displayed on the radio. If the radio is sourced to ...

    Fog Lamps
    To replace one of these bulbs: 1. Locate the fog lamp assembly under the front facia. 2. Disconnect the bulb socket from the electrical connector, turn, and pull out the bulb assembly. 3. Remov ...

    Brake System Warning Light
    The vehicle brake system consists of two hydraulic circuits. If one circuit is not working, the remaining circuit can still work to stop the vehicle. For normal braking performance, both circuits need ...