Chevrolet Cars Passlock Ignition Chevrolet truck passlock ignition (The Passlock I and Passlock II systems use a sensor in the ignition lock cylinder, which looks for proper rotation of the lock cylinder with the correct key. … An antenna located at the entry point of the ignition lock cylinder reads the transponder data from the key and sends a code to the Passlock control module) Looking for a product? Clic Here Find us on: Facebook: @Keytechtools SKU: AI09 Categories: Automotive locks parts, Buick, Cadillac, Chevrolet, GMC, Ignitions, Pontiac Tags: Car Keys, Car Remotes, Chevrolet, Chevrolet Cars Passlock Ignition, Keys, Locksmith, Remote, Remotes, Smart Keys, Smart Remotes, swich malibu, Switch