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how can i reprogram my vauxhall astra key fob?

MK 4 vauxhall astra. my existing key fob has gone faulty and i have got a used key fob in good working order. how can i reprogram the key fob to work on my car.

paul, March 2008

home Fix label Vehicles label_important Cars category Vauxhalldone

Hope someone can help.
I have a 2002 astra. I broke the key and had a new key cut- (the fob shouldn't be a problem as I just replaced the actual metal key!!!) Turns out, if I use this key to start the car- yes, it unlocks/ locks and starts the car.... the engine cuts out after about 10 seconds.... would I need to reprogram/ resync?? Suggestions would be greatly appreciated

Bronwyn, February 2016

Hi Shirley, just had the same problem with mine... car had to be recovered to Vauxhall dealer for repair.. They put a new chip in to replace the one I lost, and programmed it to the car. Cost £89.98 in total

Brian, December 2015

My son has lost the tiny fuse thing in the Astra key , so the car won't start , it's got the battery in but no fuse , can this be replaced if so how please

Shirley, November 2015

What do I do when I have lost the fob to my 2000 Astra van but still have the key

Marcus, January 2015

I tried this on my 99 astra and nothing changed battery before hand and even the locksmith couldnt get it to work any suggestions what else can i try

jackielegs5, April 2014

nothing works on mine car starts fine light work on fob just doesnt do anything?

leon vx23, December 2013

Sorry, need a small correction:
Thanks guys, both of my remotes were not working for my Astra G (03). I changed the batteries and still not working. Tried the idea: key in the ignition turned to II, the dash lights came on, pressed the UNLOCK on the remote, the car doors locked and unlocked. Now both remotes are working perfectly. Very quick and very happy. Thanks again.

Andy, September 2013

Thanks guys, both of my remotes were not working for my Astra G (03). I changed the batteries and still not working. Tried the idea: key in the ignition turned to II, the dash lights came on, pressed the lock on the remote, the car doors locked and unlocked. Now both remotes are working perfectly. Very quick and very happy. Thanks again.

Andy, September 2013

how do i do it?

danny, August 2013

If I take out transponder chip from my astra g key and put it in a new key will it still start my car

peter, June 2013

Worked first time thanks guys

Rossip, April 2013

what do I do if the TRANSPODER chip is missing out of my key and my car wont start or do anythink the lights and that come on but it just wont start I put a new battery on and a new starter motor someone please help!!!

karla jane, April 2013

i have a vauxhall astra 1.8 bertone coupe x reg my fob hasnt worked for ages changed the battery but now i cant get it to work again tried sync it to car but it just does nothing any suggetions

ricky, December 2012

Hi before you all tried this did you fob work at all or did it just not start car because my cars not firing up and been told it could be fob it unlocks door and locks but just not starting

Ryan, December 2012

i also had problems with my car and read these details about turn the key till the light are on then pressed the lock key and it worked thank u all so much :D saved me alot of money !!

charlotte conway, September 2012

Thanks for the tip on putting the key in the ignition, as I had soldered the battery casing but it wasnt working. Put it in position two and pressed the button now working a treat.

Jamie, June 2012

Mine did not work for years . Did not want to go and pay 70+ pounds to fix it . Tried this method and it worked straight away.
Thanks you so much.

eric, April 2012

Hi folks
I tried this (key in ignition (and also in pos 2) and press lock and unlock) today but it don't work!!!!

ewhd, March 2012

The key in positon II of ignition switch is the way it works for me usually, But not today.
Detached the key fob halves as there was a rattle when I shook key.
Turns out the battery holder had become detached (broken soldered legs)
I placed the battery holder back in correct position and inside the other half cover placed a few folds of toilet paper to force battery holder against contacts.
Went out to car and tried it (Resetting as mentioned already) and Hey Presto it works

Relieved, March 2012

Absolutely great thought I would have to pay out 70 quid to vauxhall but now even my spare key works - thank you very handy tip!!

Juls2000, August 2011

great solution!!!! thanks mrs thinks am well clever haha

tom r, August 2011

absolutely brill!put key in ignition and pressed lock and now central locking working!!!

LUCY, July 2011

My vauxhall astra's fobs not working. My car is a vauxhall astra 1.4 (1995)

I had to change the battery on the car, when I put the car battery back in...my car alarm and central locking stopped working. I have tried all the steps here and nothing happens! can someone please help?

Kev M, February 2011

my vauxhall astra 1.6 sxi ran out of fuel now put fuel in and engine management light on and wont start any one got suggestions

glyn tate, January 2011

Heavy handed mechanics often force the old batteries out of the key fob, breaking the soldered contact points on the key fob circuit board. If the ignition reset procedure does not work, you may need to source a replacement key fob. WARNING: DON'T FORGET TO KEEP THE TRANSPODER CHIP IF YOU CHANGE THE KEY FOB, OR ELSE THE ENGINE WON'T START (see immobiliser).

Mike, November 2010

Worked a treat thanks!

Sjd, November 2010

done what you said put key in turned key to ignition on pushed door lock button now works a treat thanks

bernie, November 2010

Excellent!! My wife’s key fob hasn’t worked for ages, kept on planning to buy a new key for stupid money! Then I tried this solution and it worked perfectly thanks for the great advice guys!! :-)

Adam, October 2010

Thanks a lot guys, you saved me a fortune, I did the ignition on, then pressed the lock botton and presto the doors locked and unlocked and after that it worked a treat , well worth sharing the knowledge guys.Thank You Vey Much.

DJ GATHS, September 2010

Although the answer sees to be: key in the ignition and turn it to number 2 ignition, then press the remote. all the doors will automatically lock and then unlock, it should then be reset.
I replaced the key battery CR2032 and now I can get the car to un-lock, it will not relock from the button on the keys even though the light flashes when it is pressed no matter what I try.. any suggestions ?? ( i have tried the above) and the lights on thing..

Glynn P, September 2010

hi i have got a second key fob and want to know how to program it in. can u help

matt, September 2010

Wow!! you guys are geniuses! Respect to Chris MC!! Just tried your tip and it really worked just as you said it would!!

DuttyMan, July 2010

put your key in the ignition and turn it to number 2 ignition, then press the remote. all the doors will automatically lock and then unlock, it should then be reset.

mark turner, June 2010

My key chip fell out of the key holder now it does not start, The car locks and unlock, but when i start it the engine light will flash twice then car will cut off. Do i need to go vauxhall dealer or is there somethng i can do myself.

Astra, June 2010

hi everyone - my remote central locking failed, i changed the battery then it worked for a while then it failed again, this time i did the re-programming with putting key into ignition and pressing lock but again it kept failing, did this a number of times but now it wont work at all and i have to open the car with the door boo-hoo WHAT HAPPENS NOW?? WILL I NEED TO BUY A COMPLETELY NEW KEY FROM VAUXHALL?? .x.

Lea from Leeds, April 2010

another question! having bit of nightmare here! well just bought van and the fob wasnt working so opened it up changed bat and noticed the battery wasnt in contact the solder had snapped. when pushed them together the fob would work, but it stopped working again. so ive bought a secnd hand fob of ebay, done this thinking if i done the programming idea with putting dash light on and holding button down would work but it doesnt? anyone help me out! cant stand opening doors with key now!! thanks

chas, April 2010

just had same problem, worked a treat thanks

Andy, March 2010

Do you guys know if this will work with my 07 reg Astra?

Chris, March 2010

i replaced battery on key fob but it still didn,t open when i pressed key,done the put key in ignition and press lock and hey presto i,m back in business

john, January 2010

Peeps it really works...i was surprised, usually these things dnt work for me...but it did

Astra MK 4 W Reg, January 2010

i had the same problem, and it worked wow!! thnx guyz

M DEE, November 2009

THANKS FOR YOU ANSWERS THOUGHT I WAS GONNA HAVE TO BUY A NEW KEY BUT THANKS TO U GUYS IT WORKS! I JUST PUT THE KEY IN THE IGNITION PRESSED THE LOCK BUTTON AND HEY PRESTO IT NOW WORKS!!! THANKS SO SO MUCH.

TAB, November 2009

Thankyou very much for your tips, have been using the barrell on my Astra for ages, then tried this and it worked. Much appreciated!!

Kayne, August 2009

thank you to the master who said to put the key in the ignition it works a treat thank you money saved

drewc885, June 2009

Great job, i was also having the same probles with my fob. working fine now after re-programing it in the ignition

MDH, March 2009

great help thanks helped me today no got central locking again Yipppeeeee!!!

mark chapman, January 2009

I got a damaged key fob circuit board; it had no socket for the battery but managed to solder thin cables to it and to the battery. The little red led light on the key would lit when pressing the buttons but the car would not respond to lock or unlock commands. Then I read the comments here and put the key in the ignition turned key till ignition was on them pressed the lock button on the key for a couple of seconds, took the key out and now it works just fine again. I'm very happy because of the money I have saved by not having to buy and program another key fob.

Jose, November 2008

My key fob didnt work i changed the battery several times and nothing so i was back to unlocking the doors with the key. however i put the key in the ignition so the dash was lit up and pressed the lock button on the key fob which seem to reprogramme it and now its working fine.

debbie, October 2008

look on ebay "reprogram"

naz, July 2008

try this -open up old key fob and remove small transponder -it just lifts out. now put it in your new fob . build keyfob up with original blade. put key in ignition turn on now press open on keyfob. central locking will lock the doors and reopen -job done

chris mc, April 2008

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