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:

    Flash-to-Pass
    This feature lets you use the high-beam headlamps to signal the driver in front of you that you want to pass. It works even if your headlamps are off. Pull the turn signal lever toward you briefl ...

    Steering Wheel Adjustment
    Steering Wheel Adjustment To adjust the steering wheel: 1. Pull the lever (A) down. 2. Move the steering wheel up or down. 3. Pull or push the steering wheel closer or away from you. 4. Pul ...

    Power Steering Fluid (3.6L V6 Engine)
    See Engine Compartment Overview for information on the location of the power steering fluid reservoir. ...