replaced key battery

[justice4all3000]

just replaced the battery on my spare car key and the key-less entry does not work is there a way to check if the key is transmitting at all? does it need to be in its key-shell to work? i did leave the old battery out for about two days

[acarmody]

Sorry buddy, once you took the old battery out the key lost the codes to unlock the car. Bin it and buy a new one.

[ucwepn]

yes there is some kind of time limit to swap the battery i read somewhere it was like 10 seconds before it loses the codes. Holden are sneaky thats for sure.

[Cameron P]

I opened my key and it looked to me the battery doesn't come out!?

[WhiteVXBerlina]

What size/type of battery do they use? I have a Series VX Berlina that needs a new battery too.

Cheers!

[acarmody]

Its not easy to swap the batteries in these things, not impossible just very, very hard. For starters you cannot let it go without power for even a second, or you risk it losing the code. Second, the battery is spot welded in, good luck. Third, you will need to be able to weld the new battery in without making it explode or leak.

[accentstencil]

Also, getting the shell apart without making a mess is not easy. Holden do their very best to discourage battery replacement. They won't to rip you off with a new remote.

[TonyJZX]

to be fair everyone does a similar thing

most companies solder in a battery so they don't have to deal with issues arising from that

[justice4all3000]

1.Turn the ignition to ON, then wait 10 minutes for the next step in the programming sequence.
2.After the 10 minutes has elapsed, the car horn will chirp once. Turn the ignition switch to the OFF position within 5 minutes after the horn has sounded, then to the ON position within 5 seconds after switching it OFF.
3.Leave the key to the ON position for 10 minutes. After the 10 minutes has elapsed, the car horn will chirp twice. Turn the ignition switch to the OFF position within 5 minutes after the horn has sounded, then to the ON position within 5 seconds after switching it OFF.
4.Leave the key to the ON position for 10 minutes. After the 10 minutes has elapsed, the car horn will chirp 3 times.
5.Verify that the security indicator in the instrument cluster has stopped flashing and attempt to start the vehicle.
6.Turn the ignition to OFF and remove the key from the ignition switch.
7.Move approximately 3 meters (10 ft) away from the vehicle and test the transmitter functions to validate that the transmitter has been programmed successfully.



has anyone done this before?

[TonyJZX]

hmmmm

is this the similar thing to what you do with a new key...

ie. pop the doors open with old key

start the car with the new key

and the BCM programs the final part of the new key

thats what the key cutter dude told me to do

[wortus]

The battery is available from Jay Car with the welded tas on it so you just need to de solder it from the PCB. they only cost a few dollars. If you bugger the shell you can get them off e-bay for about $10.00.
The key tang is the arial for the transmitter so you have to have that screwed in place so it's electrically connected to the circuit board.
I was of the belief from what I have read elsewhere here that the key would still start the car if it's battery went flat and the battery was just for the keyless entry part.

[The1]

you need a tech2 to reprogram a key fob, the key cutter mr minute guys start the programming from your old key which is then finished buy using it. Keys do not reprogram by themselves, otherwise it would make stealing cars easy.

[oska]

The battery is available from Jay Car with the welded tas on it so you just need to de solder it from the PCB. they only cost a few dollars. If you bugger the shell you can get them off e-bay for about $10.00.
The key tang is the arial for the transmitter so you have to have that screwed in place so it's electrically connected to the circuit board.
I was of the belief from what I have read elsewhere here that the key would still start the car if it's battery went flat and the battery was just for the keyless entry part.

when i did mine i stuffed the first battery by over heating it as the solder wouldn't take to it, which i reckon you did

once programmed you never lose the function same as with aftermarket remotes when you change batteries, don't believe in the bullshit people tell you

wish i had known they were available when i did mine

[Brett_jjj]

Ive replaced the batteries a couple of times in my VS keys, which, as far as I know, are exactly the same as VT keys , and I had no battery connected to them for ages whilst I removed the old battery etc, and soldered the new one in, and the remotes still worked fine once they were fitted with new batteries and reassembled so they dont loose their programming ,well at least not in the few hours that I had them apart and disconnected.
To solder to the battery you need to sit pliers or similar right next to where the tab is being soldered onto the battery, the pliers will act like a heatsink and will soak up some of the heat from the soldered joint on the battery, you also need heaps of soldering flux on the battery to get the solder to stick to the battery quickly so it doesnt have to be heated for too long ,which will stuff the battery, I know, Ive done it before too.....

[goose202]

I've also changed the battery in VS keys. Would have gone minutes without the battery installed, and they work fine.
I used a new $10 case of ebay and a standard CR2032 battery. I prised the tabs off the old battery and glued them onto the new battery.

[VYMAD]

I havn't had to change batteries yet, though I have had to place some alfoil in and around some of the contact areas within the key head. Are you sure all your contacts are, well, contacting? I did this to both my keys as the bad contact was all that was wrong.

Prying apart the housing can be tricky, (I ended up with five stitches in the palm of one hand after the knife slipped) but after it's been glued back together carefully and properly, it's hard to tell that the head has been opened.
When my batteries fail, I will be changing them myself.

Edit: There is a How-to on the alfoil trick on a VS key.

[lout]

seriously for the cost of a new remote isn't it worth it for the peace of mind
so many people fit new buttons and new battery and the time involved and possibly stitches, ouch!
considering the inconvenience when a remote fails just buy a new one and have five years without problems

[justice4all3000]

ok i just got the key working all i did was unlock the car with my other working key then started the car with the non working key now the keyless entry works on the spare key now