Question about 2001 Pontiac Grand Prix

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Security/Cold? This is the 2nd time now this has happened....on a very cold MN morning, my car starts - runs just fine. When I want to start it again, the security system acts like I stole the car, and shuts down when I start it. The computer needed to be reset by a mechanic last time, I'm just wondering if it could be easy enough for me to reset? Also - I do not have a keyless fab - I lock and unlock it with my 1 key. I have also had this issue this week, so has a co-worker who also has a Grand Prix. We are in MN also. The dealer I spoke with said he has had a handful of customers with this issue on other GP's. So far I've been told it is either the BCM, the theft deterent module and/or the harness to that or possibly the ignition lock mechanism. I was able to override this issue to at least make the car drivable, basically you need to make the car relearn the key. It won't fix it but you can at least drive it to the dealer for a fix rather than pay for a tow. Instructions: Hook some jumper cables up between your car up & another running vehicle, turn the car over. Let it stall, do not touch the key, leave it in the on position and walk away for at least 12 minutes. Come back, remove the key for at least 30 seconds, reinsert and turn the car over. It will stall again, repeat these steps 3 times. The car will start and run on the 3rd attempt. Do not unhook the jumper cables until the car runs on its own! Take it to the dealer and let them hook up the tech-2 scanner to it. You are looking at 1 of the above mentioned issues. Probably going to run us $3-400 =(

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  • snowphoenyx Jan 20, 2009

    It just got brand new battery cables when the battery was replaced 6 mos. ago. They are fine.

  • snowphoenyx Jan 20, 2009

    Now the SES light is on. Havent et had the code scanned to see if this is related but, has anyone else's SES light come on after this issue?

  • Tim Higgins
    Tim Higgins May 11, 2010

    just a thought...make sure yoour battery terminals are clean and sound.

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  • 196 Answers

Hey well aint mn great -40-50 love it hear any ways im a mechanic and if you can i would tough it out some realy wacky things that i have never seen before have happend in the last few days in the cold its suppose to warm up well im rochester where im from any ways then i would see what it does or get it inside a nice warm shop or grauge for a day and see if it runs ok.

Posted on Jan 17, 2009

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