Changing the Passlock Components

The following components contain codes or passwords, or must learn codes or passwords for the Passlock system to allow the vehicle to start:
^ The ignition lock cylinder case
^ BCM
^ The Powertrain Control Module (PCM)

If any of these parts are replaced, a learn procedure must be performed. Refer to Programming Theft Deterrent System Components. If parts are replaced and a learn procedure is not performed, the engine will crank and will not run or will start and stall immediately.