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:

    Sensor
    The solar sensor, located on top of the instrument panel near the windshield, monitors the solar heat. The climate control system uses the sensor information to adjust the temperature, fan sp ...

    Heated Steering Wheel
    (Heated Steering Wheel): For vehicles with a heated steering wheel, press to turn it on or off. A light on the button displays when the feature is turned on. The steering wheel takes about thre ...

    Dual Tone Multi-Frequency (DTMF) Tones
    The in-vehicle Bluetooth system can send numbers during a call. This is used when calling a menu-driven phone system. 1. Turn the Menu knob to select Enter Number, then press SELECT. 2. En ...