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:

    Maintenance Replacement Parts
    Replacement parts identified below by name, part number, or specification can be obtained from your dealer/retailer. Maintenance Replacement Parts ...

    Volume Control
    VOL/ (Volume/Power): Turn to adjust the volume. (Phone/Mute): For vehicles with OnStar®, press and hold to mute the infotainment system. Press and hold again, or turn the VOL/ knob t ...

    Accessory Inflator
    Your vehicle has an accessory inflator system. It can also inflate things like basketballs and bicycle tires. It can also used to inflate the tires to the proper tire pressure. It is not designed t ...