Member Since: 23 Jan 2020
Location: norfolk
Posts: 6
Spare key fob-forgetful Discovery?
My spare key fob has sat unused for years, I went to use it recently and of course it didn't work. So I changed the battery in the fob, expecting it to spring into life... nothing at all, can't even start the engine. So sent it off to a specialist who checked it and said it was working perfectly, he said that the car thinks the remote has been lost and forgets it. Will it need pairing again at a dealer? The other remote works perfectly.
Last edited by stiarno on 5th Dec 2020 10:48 am. Edited 1 time in total
4th Dec 2020 10:00 pm
KevinD3
Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1210
Hi Stiarno
You can drop into a dealer to recode or do it yourself, some of the diagnostic kits will code a key, cheapest we’ve found is the Autel, around £50, decent code reader but will let you code your own key.
My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕
5th Dec 2020 1:05 am
stiarno
Member Since: 23 Jan 2020
Location: norfolk
Posts: 6
Thanks for that. I do have an icarsoft cr pro which has been invaluable, but unless I'm missing something, won't program the key. Still can't believe the fob won't work, if it's putting out the right signal, then you'd think it would work??
5th Dec 2020 10:52 am
KevinD3
Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1210
Morning, if you sent the key off to be checked then they could
Only check that it was transmitting “something” what it’s sending just isn’t being recognised as valid by the car. Looks like if the battery has been flat for Long enough it just forgot 2008 HSE Stornoway Grey
My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕
5th Dec 2020 10:58 am
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72799
Would the key being reminded if it’s old codes count, in the key’s mind, as being reprogrammed? After all if it’s forgotten what it knew then it doesn’t know if reminding it is new data or same old same old. And they don’t like being reprogrammed.
I have two keys for my D4 & for my SL350, and once a month a religiously swap them over so that no key is left unused for more than a month.
We were all advised to do this, by someone here many years ago.
NJSSAm I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
5th Dec 2020 11:25 am
KevinD3
Member Since: 05 Aug 2020
Location: Sutton Coldfield
Posts: 1210
Good advise NJSS, although it comes with caveats. My spare key is set up for SWMBO to use (seat forward/higher, mirrors etc) as the disco is the “family” car and she can drive it whenever she wants, so there are some benefits to the spare key stopping working 2008 HSE Stornoway Grey
My Wife thinks the D3 is a hobby, The D3 thinks the wife is 💕
5th Dec 2020 11:31 am
eightfoot
Member Since: 12 Apr 2015
Location: sunny essex
Posts: 763
NJSS wrote:
There's a message here for all of us.
I have two keys for my D4 & for my SL350, and once a month a religiously swap them over so that no key is left unused for more than a month.
We were all advised to do this, by someone here many years ago.
NJSS
^^^^^^^^^^^^^^^^ was also advised the same when i bought mine from the l/r dealer so i also swap keys on the 1st month to avoid such problemsplease excuse any grammer/punctuation mistakes,i'm thick,thankyou
current vehicles 2005 d3 2013 d4
5th Dec 2020 12:03 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72799
KevinD3 wrote:
Good advise NJSS, although it comes with caveats. My spare key is set up for SWMBO to use (seat forward/higher, mirrors etc) as the disco is the “family” car and she can drive it whenever she wants, so there are some benefits to the spare key stopping working
You know what you have to do, it’s as obvious as the long nose on a Blackpool donkey. You take the hit for the team and reprogram both keys to MrsK’s settings, swap them monthly, then you just press the buttons as require. It’s a winner, winner, at least you get dinner without cooking it yourself, and as a fringe benefit the unused switches get a workout.
Sorted.
5th Dec 2020 12:11 pm
stiarno
Member Since: 23 Jan 2020
Location: norfolk
Posts: 6
KevinD3 wrote:
Morning, if you sent the key off to be checked then they could
Only check that it was transmitting “something” what it’s sending just isn’t being recognised as valid by the car. Looks like if the battery has been flat for Long enough it just forgot
The joke of it is that when I took out the old battery, it was still ok, so my Discovery 'forgot' a perfectly legitimate working remote, just because it hadn't been used for a long time. All very frustrating.
5th Dec 2020 7:56 pm
eightfoot
Member Since: 12 Apr 2015
Location: sunny essex
Posts: 763
think l/r told me that if they forget from non use then you have to have the keys reprogramed please excuse any grammer/punctuation mistakes,i'm thick,thankyou
current vehicles 2005 d3 2013 d4
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
