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:

    Introduction
    Important: Keep engine oil at the proper level and change as recommended. Have you purchased the GM Protection Plan? The Plan supplements your new vehicle warranties. See your Warranty and Owner ...

    StabiliTrak® Service Light
    This light will come on briefly when the engine is started. This light will come on if a problem is detected in the StabiliTrak® system. ...

    Remote Keyless Entry (RKE) System
    The Remote Keyless Entry (RKE) transmitter will work up to 20 m (65 ft) away from the vehicle. RKE without Remote Start Shown Press the button to extend the key. The key can be used for all lock ...