Thread: Resetting key fob after Battery change

Originally Posted by Iggy

Thanks
I will give this a try. When I initally brought the second fob from a stealer they had to do it with their test book and charged quite a bit for it.
Cheers Iggy

that's WHY they are called 'stealers'!!

If a battery box was plugged into the cigarette lighter before the battery was disconnected, would the current be maintained and the key fobs not need resetting?

Originally Posted by 101RRS

If the one you have worked on the car before the battery change then pushing the buttons alternatively about five times should work. However if it is a different fob that has not been used on the car before, then it has to be coded to the alarm computer - this can only be done on a nonocom or equivalent.

Garry

So if I understand right:
1.open car with key fob that works
2.replace battery in key fob
3.repeatedly press buttons to do 'magic reset of key fob brain'?

That is it?

Another question: My key fob works only if I am really close, say max 2m and not even if standing right behind at the rear door. Is that normal? It's really a nuisance at times. Where is the antenna in the defender?

Thanks!

I could be wrong, but maybe if you go way out of range of the vehicle and then change the battery, would it still work when you come back in range of the vehicle?
That worked on our 2009 Defender.

Originally Posted by DiscoMick

I could be wrong, but maybe if you go way out of range of the vehicle and then change the battery, would it still work when you come back in range of the vehicle?
That worked on our 2009 Defender.

+1 our LR independent did that for mt 3 keys all worked perfectly the last two times I have it on 2008 puma

Originally Posted by Parker

Another question: My key fob works only if I am really close, say max 2m and not even if standing right behind at the rear door. Is that normal? It's really a nuisance at times. Where is the antenna in the defender?

Thanks!

Yes that is sadly normal. There was a thread on here a few years ago- I'm sure a search would find it- on extending the antenna wire to get better range. I did that with disappointing results, still have to be almost leaning on the car most of the time for the fob to work.