Urgent Key Fob Issue - Only my boot unlocks :(

[mix]

Hey everyone,

I changed the battery on my key fob (all was working well before but the range was a bit pants)

got the right battery (CR2032) and put it in correctly, tried to do it as quickly as possible as I know a lot of modern keys have a time limit (approx 30 secs I would have thought)

anyway! I pressed it a few times and the red LED on the key lit up, I then tried it from my window and the indicators flashed, good stuff I thought!

went to get in the car later, and it the indicators flashed to unlock but none of the door locks opened, just the boot.

When I press the fob to lock or unlock it JUST does the alarm, I have to open the drivers door manually, and none of the others unlock bar the boot even when I press the lock/unlock buttons in the car.

The key still starts the car though

Any ideas?

Cheers

Mike

 

[rsmith]

The key itself will still work as the transponder is matched to the immobiliser, however the part that opens the doors is just a radio control unit.

i would try matching the key to the car again as below, worth a shot.

Try this:

- car is locked
- unlock with normal key manually at drivers doorlock
- IGN ON with normal key ... leave it there
- use NEW remote key to lock the car manually at drivers doorlock
- remove remote key from doorlock
- press "lock" at the NEW key, indicator lights will flash
- then hold the "unlock" für ~3 sec. and indicators will flash long and the doors should unlock
- coding procedure should be successfully finished.


Also strange that your boot even works, i have tried to get this working on my LCR with several different key fob's.

Is it as standard seat flip key that you are using?

 

[lc_allan]

Might want to also reset the ECU before trying the match the key again above.
Disconnect the negative terminal for twenty minutes or so.

 

[mix]

Been to seat and the had the key re-coded, also found that my electric mirrors dont work anymore but my windows do....

Is it the drivers door control module?

 

[lc_allan]

Did you try the ECU reset?. I had an issue with my mirrors not opening and it fixed it. Also check your fuses.
The recode instructions are in the manual and above. I hope Seat didn't charge you too much.