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:

    Sunroof
    A. Open or Close B. Vent On vehicles with a sunroof, the sunroof only operates when the ignition is in the ACC/ACCESSORY or ON/RUN, or when Retained Accessory Power (RAP) is active. See Retain ...

    Horn
    Pressaon the steering wheel pad to sound the horn. ...

    Passenger Side
    The removal of the air filter/cleaner assembly and base is required for the replacement of one of these bulbs: 1. Open the hood. See Hood. A. Air Duct Clamp B. Connector Lock C. Sensor Co ...