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
• The body control module (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.