My key fob stopped working, I replaced the batteries and it still wont work. Do I need to reprogram it since I replaced the batteries? Or do I need to go to the dealership and get a new key fob?

Colin Stickland

• 22516 Answers
• Posted on Jul 29, 2010

SOURCE: alarm system has stopped working.

please explain what year a X registration vehicle is ,as i have no idea ,last one i remember was a T 1978 .Now i think that this alarm fob might need re-programming into the vehicle where you swing on the aerial whilst holding the key fob in teeth and pressing the brake and the FM button on the radio at the same time ,When my all data books arrive next week i might be able to help but yes i have had this problem before and yes we do have these vehicles here in spain but mainly diesels ,now last time it happened when a customer changed the batterys i held the button down on the fob then turned the ignition on and it all sort of bleeped and started working ,but perhaps an american person with more experiance than myself might know how to do it correctly ,Now if you ask me about a humber hawk or a morris minor??

SOURCE: i don't know if a 2001 jeep cherokee will work with a 1999 jeep grand cherokee lared

you have to take it to the dealer so they can program it to your car

SOURCE: 2000 Jeep Grand Cherokee. Locked

did you try calling a dealer sometimes they are the only ones that can reprogrm these things

ZJ Limited

• 17989 Answers
• Posted on May 05, 2010

SOURCE: changed battery in key fob now it dosent work

I suggest check in your repair manual ZJ-Secc-8P-Power-Door-Locks (page 5 and next)...



Hope this help (remember comment and rated this).

SOURCE: I can't start my 2008 Jeep Grand Cherokee with

Hi Hal,

Did you ever get this resolved? Looks like you didn't get any feedback here! I'm having the same issue sporadically. I turn the key and nothing. Usually if I keep trying it will eventually start cranking and start. Usually within 10 - 15 tries. happened last night. After it started, I got the "Service Security Key" message. I looked in the manual and it does say what that means. Don't know if it is programming (probably not because the fob works 97% of teh time) or maybe just a dying battery. If you can share anything you might have founf out I'd appreciate it! thanks!
Brian