GM Service Manual Online
For 1990-2009 cars only

Theft Deterrent System

The Theft Deterrent System on this vehicle is comprised of two separate systems, the Personal Automotive Security System (PASS-Key® III) and the Content Theft Deterrent (CTD) system. These system are described and diagnosed separately within this section. For PASS-Key® III operation, refer to Vehicle Theft Deterrent (VTD) Operation .

SECURITY Indicator

The yellow indicator SECURITY on the instrument cluster is controlled by both the PASS-Key® III system (VTD module) and the CTD system (RIM).

    • PASS-Key® III system, the VTD commands the instrument cluster to control the indicator only when the ignition switch is ON.
    • CTD system, the RIM commands the instrument cluster to control the indicator only when the ignition switch is OFF.

Content Theft Deterrent (CTD)

The CTD system (when armed) is designed to deter vehicle theft by pulsing the horns and exterior lamps for approximately 30 seconds when an unauthorized vehicle entry is detected. However, the CTD system does not affect engine starting.

An unauthorized entry can be any of the following:

    • Forced entry into the rear compartment.
    • When any door is opened.
    • When the hood is opened (export).

The components of the system are the door jamb switches, Dash Integration Module (DIM), hood ajar switch (export), rear compartment tamper switch, and Rear Integration Module (RIM). For the CTD operation, refer to Content Theft Deterrent (CTD) Operation .