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:

    If You Cannot See the HUD Image When the Ignition Is On
    • Is anything covering the HUD lens? • Is the HUD dimmer setting bright enough? • Is the HUD image adjusted to the proper height? • Are you wearing polarized sunglasses? • Still ...

    Interior Mirror
    The vehicle has an automatic dimming inside rearview mirror. Automatic dimming reduces the glare of lights from behind the vehicle. The dimming feature comes on and the indicator light illuminat ...

    Cleaning the Display
    Notice: Using abrasive cleaners when cleaning glass surfaces could scratch the glass. Use only a soft cloth and do not spray cleaner directly on the system as it could affect the mechanical ...