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 Advisor can run a check., and an Advisor can run a check.

    See also:

    Air Vents
    Use the louvers located on the air vents to change the direction of the airflow. To open a vent, move the thumbwheel to | . To close the vent, move the thumbwheel to . Operation Tips ► Keep a ...

    Defogging and Defrosting
    Fog on the inside of windows is a result of high humidity (moisture) condensing on the cool window glass. This can be minimized if the climate control system is used properly. You can use either d ...

    Listing Stored Numbers
    The list command will list all the stored numbers and name tags. Using the “List” Command 1. Press . The system responds “Ready,” followed by a tone. 2. Say “Directory.”. 3. Say ...