1996 Pontiac Grand Am theft deterrent system

EVAP456

MEMBER
1996 PONTIAC GRAND AM
6 CYL
FWD
AUTOMATIC
167,000 MILES

I have owned this car for 3 years Recently it has been starting and then shutting off. Once it is on-it is on. Finallt got my mechanic to check it out and diagnostic comes up with message-Theft Deterrent System problem. I did not know it even had a system-no remotes or anything. How to disengage? Or should we remove it all together? I am very dependent on my car-please help. I need it back asap! Eva

1 Reply

WRENCHTECH

MECHANIC
20,761 POSTS

There is no way to shut that off. It wouldn't be much of a theft deterrent if it was disabled that easily. I can give you a 30 minute relearn process that will usually get it started but if it is happening frequently, it has a problem that will have to be found and repaired. It will require a factory scan tool to be able to diagnose it properly.

30 Minute Re-Learn Procedure
1. Turn ON the ignition, with the engine OFF.
2. Attempt to start the engine, then release the key to ON (vehicle will not start).
3. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
4. Turn OFF the ignition, and wait 5 seconds.
5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes ( the vehicle is now ready to relearn the Passlock� � � Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK).
Important
The vehicle learns the Passlock� � � Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
6. Start the engine (the vehicle has now learned the Passlock� � � Sensor Data Code and/or password).
7. With a scan tool, clear any DTCs if desired (history DTCs will self clear after 100 ignition cycles).