Content Theft Deterrent System
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2000 GMC Yukon XL, 2000 GMC Yukon, 2000 GMC Sierra, 2000 Chevrolet Tahoe, and 2000 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
The Content Theft Deterrent (CTD) anti-theft system is designed to deter vehicle theft by pulsing horns and exterior lights when unauthorized vehicle entry or tampering is detected. The CTD system operates separately from Passlock(tm) system. System components include door jamb switches, liftgate jamb switches, shock sensor, exterior lights, SECURITY indicator light, horn relay, headlight control module and Body Control Module (BCM).