30-Minute Immobilizer Relearn

This 30-minute relearn procedure will relearn the start enable password between the theft deterrent module (TDM) and the engine control module (ECM).

1. With a master vehicle key, turn ON the ignition, with the engine OFF.
2. Observe the security indicator. After approximately 10 minutes, the telltale will turn OFF.
3. Turn OFF the ignition, and wait 5 seconds.
4. Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.
IMPORTANT: The vehicle learns the password on the ignition switch transition from OFF to RUN. You must turn the ignition OFF before attempting to start the vehicle.
5. With a master vehicle key, start the vehicle. The vehicle has now learned the key transponder information and/or the ECM has now learned the fuel continue password.
6. If additional keys are required to be learned, refer to Adding Keys .
7. With a scan tool, clear any DTCs.