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:

    Other Warning Devices
    If you carry reflective triangles, you can set them up at the side of the road about 300 feet (100 m) behind your vehicle. ...

    Door Locks
    WARNING! Unlocked doors can be dangerous. • Passengers, especially children, can easily open the doors and fall out of a moving vehicle. The chance of being thrown out of the vehicle in ...

    Engine Coolant Temperature Gage
    This gage shows the engine coolant temperature. If the gage pointer moves into the red area, the engine coolant has overheated. If you have been operating your vehicle under normal driving c ...