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

    See also:

    Roof Rack System
    WARNING If something is carried on top of the vehicle that is longer or wider than the roof racklike paneling, plywood, or a mattressthe wind can catch it while the vehicle is being driven ...

    When the System Does Not Seem to Work Properly
    The following messages may be displayed on the DIC: SERVICE PARKING ASSIST: If this message occurs, take the vehicle to your dealer to repair the system. PARK ASSIST OFF: If the UFRPA system ...

    Satellite Radio
    Vehicles with an XM satellite radio tuner and a valid XM satellite radio subscription can receive XM programming. XM Satellite Radio Service XM is a satellite radio service based in the 48 ...