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Allen J

Oakland, CA

#1 Oct 13, 2007
Hi guys:

My key's battery was dead, but I tripped off the alarm a couple of times as I opened the door with the key rather than unlocking it using the alarm button....now that I put in new batteries I can't get it to respond...actually neither of my keys are operating the car doors now. I thought the batteries were facing each other when I opened them but the writing on the battery cover says '+' faces the top....and so I originally put them face to face (so both positives were hitting the 2 polars...

did I kill my keys? Or is there a reset operation after replacing the batteries?

Now I can't even turn on my car because the security system has taken over...it attempted to start a couple of times and shut down...and now it doesn't even try to use the starter :-(...

any help is much appreciated!

Cheers,
Allen
Allen J

Oakland, CA

#2 Oct 13, 2007
OK, so I don't have my manual and I'm confused...is it cr2025 or cr2032 for the battery type?

Cheers,
Allen
Allen J wrote:
Hi guys:
My key's battery was dead, but I tripped off the alarm a couple of times as I opened the door with the key rather than unlocking it using the alarm button....now that I put in new batteries I can't get it to respond...actually neither of my keys are operating the car doors now. I thought the batteries were facing each other when I opened them but the writing on the battery cover says '+' faces the top....and so I originally put them face to face (so both positives were hitting the 2 polars...
did I kill my keys? Or is there a reset operation after replacing the batteries?
Now I can't even turn on my car because the security system has taken over...it attempted to start a couple of times and shut down...and now it doesn't even try to use the starter :-(...
any help is much appreciated!
Cheers,
Allen

Since: Dec 06

Thiells, NY

#3 Oct 13, 2007
Try this it may help.

STANDARD PROCEDURE - TRANSMITTER PROGRAMMING

The Remote Keyless Entry Transmitter(s) can be programmed by the customer without special tools.
PROGRAMMING PROCEDURE

Transmitter programming by the customer is done by performing the following steps:
1) Insert the key into the ignition switch.
2) Press either the lock or unlock button momentarily twice.
Turn the key in the ignition switch to the ON/RUN position within 30 seconds.
Allen J

Oakland, CA

#4 Oct 14, 2007
thanks for the info...that didn't work for me. Also, do you know the exact battery type? Any other suggestions short of getting it toed to the dealer?

Cheers,
Allen

Since: Dec 06

Thiells, NY

#5 Oct 14, 2007
Allen J wrote:
thanks for the info...that didn't work for me. Also, do you know the exact battery type? Any other suggestions short of getting it toed to the dealer?
Cheers,
Allen
The key fob takes (2) CR2025 batteries.
Athena

Alhambra, CA

#6 Jun 30, 2008
That didn't work for me either. Did you mean the door lock?
julio

United States

#7 Sep 18, 2009
so it takes (2) CR2025 Batteries?

My car doesn't want to open with the manual key and the remote didn't have a battery.( i just bought the car)
grey wolf

Roseburg, OR

#8 Sep 26, 2009
i have a 2004 and on page 16 in the owners manual it tells you how to replace the batteries, what type of batteries (takes two CR2025 in mine) and how to resync the transmitter - resync is necessary if the transmitter is without voltage for several minutes - so be fast when changing the batteries - i've done it several times without problems and without having to resync
jbc

United States

#9 Sep 28, 2009
MY CAR DID THE SAME I TRIED TO PUT NEW BATTERIES ON BOTH REMOTES AND DID WHAT CrossfireLTD SUGGESTED BUT NOTHING HAPPEN I JUST WANDER WHAT AllenJ DID TO FIX HIS.

"ALLEN WROTE
My key's battery was dead, but I tripped off the alarm a couple of times as I opened the door with the key rather than unlocking it using the alarm button....now that I put in new batteries I can't get it to respond...actually neither of my keys are operating the car doors now. I thought the batteries were facing each other when I opened them but the writing on the battery cover says '+' faces the top....and so I originally put them face to face (so both positives were hitting the 2 polars...

did I kill my keys? Or is there a reset operation after replacing the batteries?

Now I can't even turn on my car because the security system has taken over...it attempted to start a couple of times and shut down...and now it doesn't even try to use the starter :-(...

any help is much appreciated!

Cheers,
Allen
Grace

United States

#10 Mar 12, 2010
I would just order a new set of keys. You can even get them patented these days. I just had a Charlotte NC Locksmith make me a new set and they gave my car a new starter. Here is my referral if your in that area http://www.a1alocksmiths.com
Josh

Pittsburgh, PA

#11 May 22, 2010
Well, I have the same problem--my key fob will flash lights once when unlocked and three times when the lock button is hit, but doesn't open the locks--I have to manually do it with a key. I replaced the batteries with two new CR2025 batteries properly oriented. I've tried resetting teh keys but still no joy. Anyone able to solve this problem ?
Gybee

Ormond Beach, FL

#12 Aug 20, 2010
The Following as in the Owners manual: Both batteries to be installed with the plus symbol facing UP. Do NOT replace only one battery...replace both. It may be necessary to resynchronize if the transmitter is without voltage for several minutes. To synchronize, aim the transmitter eye at the vehicle and briefly press either the lock or the unlock button twice. Within approximately 30 seconds, insert the key and turn it to the ON/RUN position. The remote should once again be operational.
Zach

Washington, PA

#13 Aug 21, 2010
Josh wrote:
Well, I have the same problem--my key fob will flash lights once when unlocked and three times when the lock button is hit, but doesn't open the locks--I have to manually do it with a key. I replaced the batteries with two new CR2025 batteries properly oriented. I've tried resetting the keys but still no joy. Anyone able to solve this problem ?
I had a similar problem and after reading some other blogs thought I needed a system reset. Took it to the dealer and discovered that the horn and interior lights also didn't work. After some extensive tests we tracked it down to a short in the trunk light circuit. Apparently, there was insufficient insulation around the wire and it rubbed through and shorted out, somehow blowing the fuse on the horn circuit.
Michelle

United States

#14 Aug 27, 2010
Crossfire fobs take two CR2025 circle batteries....go to walmart go to the camera section and you'll see them hanging in the battery section....you need 2 of them....they're 3.97 each...get both of them...pop your fob open and put them in....now listen...when you first put them in they're not going to work because you key fob has been reset...you have to understand this....it won't work until you have been driving around in your car with the key in the ignition for more than 20 mins...so get the batteries but them in the fob....drive to mc donalds eat inside...go back in the car and drive at least a few more mins then once you get home or to your destination they will work...it's always like this for me when i replace the batteries...i have to drive my car once...stop...drive again....stop...then it re-formats it self...good luck everyone I hope it works for you! LOVE MICHELLE!
samuel

Kemp, TX

#15 May 30, 2011
My key alarm will not set the alarm on my car or turn the alarm off on my car is it the battery and how do i fix it
Shawn

Denville, NJ

#16 Oct 6, 2011
Change the battery on my car remote and still doesn't work and I can't get in the car.Is it the key . I have a 2005 dodge charger.
SJB

Toronto, Canada

#17 Jun 13, 2012
The sync instructions worked for me...much appreciated.
Mathiers

Centurion, South Africa

#18 Aug 20, 2012
I have an audi a4, 2004 I changed the battry on the remote, nw I cant even open the doors to my cars. How do I programme if I cant get in. Everything was working perfectly before.
heather

United States

#19 Nov 18, 2012
Just recently bought a 2007 dodge charger and the battery was dead in my key. Son replaced battery and it worked for a day. now it doesn't work at all again. My car didn't come with an owners manuel. Can someone tell me how to reset my key so that I can get it working again.
Thanks
darren

Hull, UK

#20 Feb 7, 2014
Were do I get a new battery for my key fob in my 2002 audi A6

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