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"starting disabled theft problem"

113334 Views 48 Replies 28 Participants Last post by  Submariner409
Ok so I have the 2005 3.6l sts I got my new engine in today and it says "starting disabled theft problem" I have tried everything I seen on this site about disabling it. As far as putting the key in the door, pressing the button on the FOB...none of those are working. The FOBs do lock and unlock the doors, radio and everything works it just wont start for me and the message wont go away. UGH I really just want her back on the road lol. How do I fully/completely reset this system. Any help or Advise is need. Thanks ALL.
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yea I put it in the arm rest it said "known FOB" I hope i dont need a dealer...I came across this which I guess someone else tried what do you guys think about it??

1. Put key into the ignition and turn it to the ON (RUN) position. A "Security" indicator light on the dashboard will stay on for 10 minutes.

2. Within 1 minute after the indicator light goes off, turn the ignition to "OFF" then return to the ON (RUN) position. The indicator light again will stay on for 10 minutes. (DO NOT REMOVE THE KEY)

3. Again, within 1 minute after the indicator light goes off, turn the ignition to "OFF", then return to the ON (RUN) position. The indicator light again will stay on for 10 minutes. (DO NOT REMOVE THE KEY)

4. When the light goes off for the third time, the new key is programmed into the computer and will start the car. Remove the key and then re-insert it into the ignition lock and start the car.

then the tech said this....

From what you have described here this does sound like the vehicle went into theft protect mode and the key needs relearned.This doesn't have to be done by a dealer and it sounds like you have the correct procedure however on step 3 after the third time doing this make sure you turn your key off again before trying to start the vehicle.

If you have a start button instead of the key hole then you would have the key on you and push the start button with your foot off the brake to turn on the ignition then go through the steps.

Keep in mind you have to have a good charge in the battery when doing this,if voltage goes low it will reset the learn procedure.You can do this with a battery charger connected to the vehicle if needed.Or you can replace the battery and do this procedure.

what you think??
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ok but when I do that it asks for "fob 3" if I put 1 or 2 in it just says known fob...uggghhhh why do they make these caddies so tough?! Imma go by cadillac tomorrow morning and see if they are welling to give some good FREE advice. lol


I think I really just need to know how to disable that system. My car already knows and recognizes the fobs.
Oh I see exactly what you was saying EChase my bad man I didnt completely understand. So you are saying if 1 and 2 are in range it will find those instead..GOT IT!! I will try that. Yea I do have the manual I have been all through it and find out alot of things i didnt know lol like power window settings. But in the book it only says to disable the theft turn key or use fob. Crazy! Imma go by caddy and see what they got for me. Sure it will come with a $100 fee. if not more. Thanks for all you advise man, you really know your stuff on these cars
yea but thats the funny thing, I dont think switching the engine did it. I think since the car sat for so long with a dead battery it happened. Because before I switched the engine it had happen, but I had sent it to a cadillac shop here in NC and he overrode it so that he could see what was wrong with the engine. So I am also going to call him and see if he has any insight, I will keep you guys posted for sure.
PROBLEM SOLVED!!!!!!!!!!!!!!!!!!!!!Was a simple fix but kinda long took 30mins but simple. If anyone else has this problem feel free to message me it wasnt hard at all. Anyone can do it themselves. Thank you everyone that helped out with this crazy problem.
Sure! Here it is thanks to Dave at

Try the relearn procedure below. Let me know if it works for you.

30-Minute Relearn Procedure

1. Press and hold the OFF/Acc button for approximately 4 seconds to turn the ignition ON, with the engine OFF.
2. Observe the Security indicator. After approximately 10 minutes the indicator 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 transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

5. Start the vehicle. The module being programmed has now learned the RCDLR password.

This worked with no hiccups at all on the first try. This is for us STS owners with the push start feature. Hope it helps like it did with me!!

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Sorry Carter,
I dont know what could have caused it, I was told that if the car sits for a while and the battery dies and you unhook it or have to jump it then it resets the computer and you have to "re-reset" it so to speak. Thats all I know about it really.....maybe someone that knows a little more can chime in to better explain. Sorry I couldnt be more of a help
The same one I not to sure. wheres the ecm located??
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