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:

    Advanced safety features based on 'control and alert' strategy
    The Cadillac XTS' technology fundamentally supports a suite of advanced safety features, based on a "control and alert" strategy that extends the vision around the vehicle. It helps driv ...

    High/Low—Beam Headlamps (Uplevel)
    The high/low beam headlamps on the uplevel are High Intensity Discharge (HID) and should be replaced at the dealer. ...

    Playing from the Hard Drive Device
    HDD (Hard Drive Device): Press the HDD button to start playing tracks from the HDD. HDD displays and playback resumes from where it was last stopped. HDD Playback ModeThe infotainment system ...