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:

    Tire Pressure Light
    For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. ...

    Engine Overheating
    The vehicle has several indicators to warn of engine overheating. You will find a warning light about a hot engine as well as an engine coolant temperature gage on the instrument panel cluster. ...

    Mass Storage Media (MEM)
    Infotainment systems with MEM storage are able to record up to 1.1 GB (gigabyte) of music from audio CDs, MP3/WMA/AAC discs, and USB storage devices. The MEM player can also time shift audio ...