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:

    Boost Gauge
    Metric English For the CTS-V, this gauge is located in the instrument panel cluster. This gauge indicates positive manifold pressure, which is the induction air pressure level in the in ...

    Keyless Trunk/Liftgate Opening
    Press the trunk/liftgate release button located above the license plate to open the trunk/liftgate if the keyless access transmitter is within range. See Trunk (Sedan, Coupe) for additional ...

    Replacement Bulbs
    For replacement bulbs not listed here, contact your dealer. ...