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

    See also:

    Weight Distributing Hitches and WeightCarrying Hitches
    When using a weight-distributing hitch, the hitch must be adjusted so the distance (A) remains the same both before and after coupling the trailer to the tow vehicle. If you use a step-bumper hi ...

    Hazard Warning Flashers
    The hazard warning flashers let you warn others that you have a problem. The hazard warning flasher button is located in the center of the instrument panel above the radio. : Press to make the ...

    Exterior Lamp Controls
    The exterior lamp control is located on the instrument panel on the outboard side of the steering wheel. Turn the control to the following positions: (Off): Turns off the exterior lamps. The ...