Theft Systems Description and Operation: Notes
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
The theft deterrent system on this vehicle is comprised of the vehicle theft deterrent (VTD) system. The VTD system prevents drive away theft by keeping the vehicle from starting.