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:

    Engine Compartment Overview
    6.2L V8 Engine A. Engine Air Cleaner/Filter  . B. Coolant Surge Tank and Pressure Cap. See Cooling System  . C. Remote Positive (+) Terminal. See Jump Starting  . D. Battery  ...

    Roadside Service (U.S. and Canada)
    U.S.: 1-800-224-1400 Canada: 1-800-882-1112. Text Telephone (TTY) Users (U.S. Only): 1-888-889-2438. Service is available 24 hours a day, 365 days a year. ...

    Anti-theft Alarm System
    This vehicle may have an anti-theft alarm system. The security light, located in the instrument panel cluster, comes on when the system is arming. ...