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:

    Steering Wheel Controls
    Steering Wheel Controls For vehicles with audio steering wheel controls, some audio controls can be adjusted at the steering wheel. (Push to Talk): For vehicles with a Bluetooth®, OnStar ...

    Memory Seat, Mirrors, and Pedals
    The controls for the memory function are located on the driver’s door. These buttons are used to program and recall memory settings for the driver’s seating position, both outside mirror ...

    Low Fuel Warning Light
    This light comes on for a few seconds when the ignition is turned on as a check to indicate it is working. If it does not come on, have it fixed. The low fuel warning light (A) comes on and a chime ...