Alarm went off and key fob quit working

Go to the dealership and have them reprogram it, your fob has a chip in it that needs to be read when the car is started and by using the metal key it probably through an alarm in the ignition.

Programming a Replacement Keyless Entry Remote ' Filear ...

filear.com/?p=131

Oct 17, 2012 - If the transmitters don't work, or if you'd rather not match the transmitters yourself, .... Tried these instructions last night on my 2005 Grand Prix.

Key FOB Not Working - The Chrysler Minivan Fan Club Forums

forum.chryslerminivan.net/showthread.../11859-Key-FOB-Not-Working

Mar 15, 2009 - 10 posts - ‎3 authors
Hi Everyone, One of my Key FOB's stopped working. Is there a way of ... Well, to be honest, you don't know where that FOB has been? LOL ... 2009 Dodge Grand CaravanSXT (3.8L), Light Sandstone Metallic, 125K miles 2005 Volvo .... By jimmy154 in forum 3rd Generation Chrysler Minivans: 1996-2000.

Key May Not Start Car or Release From Ignition : Dodge ...

repairpal.com > Problems > Dodge > Grand Caravan

Dodge Grand Caravan Key May Not Start Car or Release From Ignition. ... If the newkey doesn't work, replacing the lock cylinder including tumblers ... I am able to turn off the van, but the key is stuck in the ACC position, draining my battery. ... In reading other comments, I see it may be the FOB so I'll carry both with me and ...

2009 Dodge Grand Caravan car lock doors not working

dealer only

The seat switch is sensitive and may be wearing out. The alarm dings when there is weight in the seat but seat belt is not fastened. The turn may have closed the failing seat switch.

Maybe the key fob battery is low?

do you not have a key hole on the drivers side .use your key to open and the alarm should shut off .there is a switch on the back of the key cylinder in order to shut the alarm off. in the fob does it have a key that's pops out to use as old style.

I put a new battery in the key fob for a 2008 Dodge Grand Caravan, and, at first, it still didn't work. Took it to the Dodge Dealer, who said the fob was dead. NOT SO! My husband put a little piece of cardboard on top of the battery so the battery contact was improved, and the fob works fine now.

The 1997 to 2003 Dodge Caravan and Grand Caravan use a standard key and remote setup with a separate remote fob. However, the 2004 to 2009 Dodge Caravan and Grand Caravan use a combination key and remote on one device. To program a new keyless entry remote for the 1997 to 2003 Dodge Caravan, you must have at least one functional remote, which is required to enter synchronization mode. To program the combination key for the 2004 to 2009 Dodge Caravan, you must have two functional combination keys. If you do not, you'll need to see an authorized Dodge dealer for keyless entry programming assistance.


2004 to 2009 Caravan Programming Instructions

1. Insert one of your working combination keys into the ignition. Turn it to "On"; leave it in this position for about 10 seconds but no longer than 15 seconds. Turn it to "Off" and remove it.
   
2. Insert your second working combination key into the ignition within 15 seconds of removing the previous key. Turn it to "On". After 10 seconds, you'll hear a chime and the "Theft" light will begin to flash, entering synchronization mode. Turn the key to "Off" and remove it.
   
3. Insert the combination key you want to program. Turn it to "On." After 10 seconds, you'll hear a chime; then the "Theft" light will turn off. When the light turns off, the combination key--including the key and the remote--is programmed.
   
4. Repeat Step Three for each combination key you want to program. A total of eight can be programmed.

Hope this help (remember comment and rated).

if its the remote then it needs to be swapped out. it could be the alarm module if the remote is not the thing that malfunctioning. i would get the alarm reprogrammed by the dealer and the whole module and go from there.
so in order, 1. reprogram whole system 2.replace remote 3.replace module

i have a 1996 grand caravan, and i have the problem of alarm going off too. I also do not have a keychain to turn it off. All you have to do is unlock the driver door or passenger door with a regular key, and that stops the alarm.