Question about Chrysler Sentry Key Immobilizer Bypass for Remote Start

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Sentry Key system won't let me start my Jeep Grand Cherokee

I have a 2000 Jeep Grand Cherokee and the Sentry Key device is malfunctioning, so that whenever I start the car, it automatically shuts down. Every so often it starts up fine. We have followed the sentry key programming procedure in the car manual, but it doesn't help. The key also, falls out of the ignition at times, but even if we hold it in, the car still shuts off. Our dealership wants to replace our ignition switch (at a hefty cost) to fix the problem, and say if that doesn't work they have to replace the entire computer system including wires, etc at a much heftier cost. I am wondering if an ''...immoblilization system bypass...'' that I see advertixed for the Sentry Key system will work on this problem. Any other solutions? Thanks.

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  • ajames412 Feb 17, 2009

    Thanks for the suggestion. We removed the Jeep keys from the keyrings we have and the problem persisted. The Jeep starts, usually in the morning, but by afternoon it leaves us stranded. It turns over like it is going to start, then just dies out. FYI, this problem started when we put a new battery in the car. Thanks.

  • ajames412 Mar 02, 2009

    Ok, so after several weeks, we found the solution at a Chrysler Jeep dealer in Phoenix. The owner's manual stated that if this problem persisted, it was electronic. We told that to the dealership and they tested it to find that sure enough a wire/component was burned out. They replaced the "skim module". They also gave us two new keys which they programmed at the dealership. The first dealership (in another Arizona City) was going to replace the entire ignition system at a goodly cost, and "start from there". Thanks for everyone's input on this.

  • kathy archer Mar 21, 2009

    I have a 1999 grand cherokee I just bought it used but in good shape. A few weeks ago the light with the key and circle came on while I was driving. It continued to stay on all the time. I went to leave one time and it stated the shut down thing. This was probably within one week 1/2. IW e removed the negative cable to the battery .That seemed to fix it. Next day nope. Not even the cable worked. I had have it towed too a friends shop. He said the diagnostic showed a probablem with the drivers door. Then he informed me the door lock on the drivers side had been tampered with buy a screwdriver. He said to change the door lock cylinder. Sometimes it will start and blink some not. I think its a wire in the door.My door panel is still a little off.I wiggled the wires inside it seened 2 make a difference. Maybe the wire was messed up when smeone tried to break the lock.Im at he end of the road.Havent even registered it yet. thank you for taking the time to read my diagnosis.lol. KATHY ARCHER.kovespain@yahoo.com.

  • Anonymous May 09, 2009

    My 2000 GC Limited does the same thing. I called the dealer and they said it could be as simple as the Key needing to be reprogrammed, a new key battery, or the whole ignition switch. I have not taken it to them to determine what it is, exactly - However, in the mean time, I have discovered that if I have my steering wheel all the way down when I start it, it always starts. I drive with it in this position anyway and when I park, I release the steering wheel to the full-up position to allow for more room exiting the vehicle. In this full-up position, it usually shuts off after 2 seconds. Though I have not looked closely at the ignition switch area, this tells me that it is likely a loose connection that is affected by the position of the steering wheel. I refuse to pay the dealer or any mechanic big money for something I can fix myself. I just did the front rotors and pads last night- classic Jeep warpage - and this is my next issue to tackle once and for all. After this, I will be fixing the "blend door" problem which renders your AC - and heat - totally useless.

  • tjdowling May 10, 2009

    I just a similar issue. However, in addition, I can't you the keyless entry to unlock the car. Of course when I use the key itself, it activated the security system. But since the Sentry Key is messed up, I can't deactivate the security system that way either. I've tried both of the keys that came with the vehicle. Anyone this this might be the same issue?

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Get a new key. you can easily bypass your alarm to ignition conection, worked for me!

Posted on Mar 02, 2009

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Do you have 2 keys on the same keyring? if so remove one of them

Posted on Feb 13, 2009

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Its probably the ignition module computer thingy ma bob that needs replaced. thats what i was told at the dealership. took it to a local mechanic and got it diagnosed. turns out the battery cables were damaged and that was it

Posted on Jan 03, 2012

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