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:

    Compact Spare Tire
    WARNING! Driving with more than one compact spare tire at a time could result in loss of braking and handling. This could lead to a crash and you or others could be injured. Use only one co ...

    TPMS Sensor Matching Process
    Each TPMS sensor has a unique identification code. The identification code needs to be matched to a new tire/wheel position after rotating the vehicle’s tires or replacing one or more of the TPMS se ...

    Inserting a Disc
    With the printed side facing up, insert a disc into the audio CD/DVD slot until it is drawn in. The disc track number and a Shuffle tab display and playback begins. If the ignition or radio i ...