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:

    Exit Recall
    : Press to move the driver seat back a preset distance and/or the power steering column, if equipped, up and forward. A single beep sounds when the exit feature activates. The vehicle must ...

    V-6 Power
    The CTS coupe's standard 3.6-liter V-6 moves this two-door smartly enough, but it doesn't necessarily feel like there's a 304-horsepower engine under the hood. With a curb weight of around 4,000 p ...

    Receiving a Call
    When an incoming call is received, the audio system mutes and a ring tone is heard in the vehicle. - Press to answer the call. - Press to ignore a call. ...