For 1990-2009 cars

The theft deterrent system on this vehicle is comprised of the vehicle theft deterrent (VTD) system. VTD prevents drive away theft by preventing the vehicle from starting.

#### SECURITY Indicator

The SECURITY indicator on the instrument cluster is controlled by the VTD system. The SECURITY indicator is located inside the instrument cluster. The SECURITY indicator is controlled by the body control module through the class 2 data line. The VTD system contained in the BCM commands the instrument cluster to control the SECURITY indicator only when the ignition switch is ON. The VTD system uses the indicator as a malfunction indicator.

#### Theft Lock Radio (if applicable)

Refer to Radio/Audio System Description and Operation in Entertainment.

#### VTD Description and Operation

Refer to Vehicle Theft Deterrent (VTD) Description and Operation .