Security Light

The security light should come on

The security light should come on briefly as the engine is started. If the system is working normally, the indicator light turns off. If it does not come on, have the vehicle serviced by your dealer.

If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system.

This light is also used to indicate the status of the anti-theft alarm system when the ignition is turned off.

The light will flash rapidly if the alarm system is arming and one or more of the monitored entry points is not closed. The light will stay on if the alarm is arming and all entry points are closed.

For information regarding this light and the vehicle's security system, see Anti-theft Alarm System.

    See also:

    Cellular and GPS Antennas
    Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

    Remote Keyless Entry (RKE) System Operation
    The Remote Keyless Entry (RKE) transmitter functions will work up to 60m (195 ft) away from the vehicle. Keep in mind that other conditions, such as those previously stated, can impact the perfor ...

    Cadillac CTS-V Review
    In an effort to take advantage of its recent return to popularity, Cadillac decided to build high-performance versions of several of its cars. Collectively called the V-Series, they are meant to be ...