Add-on Electrical Equipment

The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.

    See also:

    Steering
    Hydraulic Power Steering Your vehicle has hydraulic power steering. It may require maintenance. See Power Steering Fluid. If power steering assist is lost due to a system malfunction, the vehic ...

    Front Fog Lamps
    The front fog lamp button is located on the exterior lamp control, on the outboard side of the steering wheel. The ignition must be on to turn on the fog lamps. (Front Fog Lamps): Press to ...

    Sunroof
    On vehicles with a sunroof, the switches are on the overhead console. The sunroof only operates when the ignition is in ON/RUN/START or ACC/ACCESSORY, or in Retained Accessory Power (RAP). See ...