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View Full Version : D4 - Smart key not found issue



Jesse B
13th March 2010, 12:29 PM
A few days back I unlocked the D4, hopped in, pressed the starter button - and nothing! Message on screen said "Smart key not found - refer to handbook". Uh oh, I thought. Hopped out, locked the bus, wandered away, took a deep breath, unlocked, hopped in, pressed button - same story. Tried several more combos, put key in different places etc etc. Message was adamant - refer to handbook. So I did, and could find no reference to this error message! Found one that referred to "Smart key not found - place as shown" - tried that (key upside down under steering column) and still no joy.

Eventually gave up and rang my local dealer, who - thankfully - was only 5 km away. They said - oops, bother, sorry - ring LR Assist, and mean time we'll get our tech bods on the way to rescue you. They expected LR Assist to ring them, but instead the RACWA fellow rocked up before the dealers mechanics. Straight away said "I can fix this - already done one of these!". He simply undid the positive lead from the battery, waited about 15 seconds, put it back on, and then had me lock and unlock the car. When the mirrors did not fold out on unlocking he said "do it again" - this time mirrors opened out, I got in, and it started!

This got even more interesting, because right then the mechanics turned up, with a loan car for me (how good is that for service!!) and a trailer to load my bus onto. They listened to the RAC dudes story, grumbled about "all the error codes being lost", and decided to take my vehicle in to the workshop anyway. To cut a long story short - I've now been told that there were a batch of D4s with what is now a recognised fault with the not-so-Smart Key - and two new keys have been ordered for me. I'm now using my second key, which has given no problems thus far, and am praying the replacements rock up before this happens again.

The best thing about all of this is that I now know how to deal with this situation if it ever happens again. Two weeks earlier I'd been out on a back track 400 km NE of Leonora, 50 km from anywhere and on a road that sees about 2 vehicles a week! Glad it didn't happen then... Time for a sat-phone, epirb, CB or Spot unit I think.

Hope this story is of use to others who might also have the dodgy key sets.

CSBrisie
14th October 2010, 04:00 PM
Same issue yesterday - 2 week old car!! many thanks!!

stig0000
14th October 2010, 04:54 PM
allready had this prob with the my10 cars, found out to be, behind the cabin lights at the front there is a earth, clean and tighten and off you go,

also about the rd side man pulling the battery, the tecs are true about them clearing codes:mad::mad: dose not make our job of fixing your car any easyer, wev only just had one racq man use a aftermarket computer to clear codes and killed the car completely:mad::mad::mad::mad:

Graeme
14th October 2010, 06:48 PM
behind the cabin lights at the front there is a earth, clean and tighten and off you go,
Could you explain this location with a bit more detail please?

ozranga
1st May 2012, 08:05 PM
Today I had the same problem in my Disco 4 2011 SE (33000 km). Both smart keys did not work in that the lock function, tailgate, lights, alarm failed to operate. And when trying to start the car it said "Smartkey Not Found". Rang the dealer and he said must be the batteries in the smart keys - sure mate - both keys at exactly the same time?!

I managed to start it holding the key in the right place under the steering column. I found a post on the internet about perhaps the KVM software was locked (there is a known bug), and the solution worked for me - take fuse 17 behind the glovebox out for 1 minute and then return. Fixed my problem. I guess removing the battery positive achieves the same result but at least it narrowed the problem down.. now when are LR going to fix it?

Craig

ADMIRAL
1st May 2012, 09:50 PM
If you inadvertantly try to start the vehicle with the key out of range, this will occur.

I find it can be generally cleared by simply shutting everything down, and starting again. Sometimes this may entail dropping the power off ( battery or fuse ) and rebooting

stuarth44
28th April 2021, 10:02 AM
A few days back I unlocked the D4, hopped in, pressed the starter button - and nothing! Message on screen said "Smart key not found - refer to handbook". Uh oh, I thought. Hopped out, locked the bus, wandered away, took a deep breath, unlocked, hopped in, pressed button - same story. Tried several more combos, put key in different places etc etc. Message was adamant - refer to handbook. So I did, and could find no reference to this error message! Found one that referred to "Smart key not found - place as shown" - tried that (key upside down under steering column) and still no joy.

Eventually gave up and rang my local dealer, who - thankfully - was only 5 km away. They said - oops, bother, sorry - ring LR Assist, and mean time we'll get our tech bods on the way to rescue you. They expected LR Assist to ring them, but instead the RACWA fellow rocked up before the dealers mechanics. Straight away said "I can fix this - already done one of these!". He simply undid the positive lead from the battery, waited about 15 seconds, put it back on, and then had me lock and unlock the car. When the mirrors did not fold out on unlocking he said "do it again" - this time mirrors opened out, I got in, and it started!

This got even more interesting, because right then the mechanics turned up, with a loan car for me (how good is that for service!!) and a trailer to load my bus onto. They listened to the RAC dudes story, grumbled about "all the error codes being lost", and decided to take my vehicle in to the workshop anyway. To cut a long story short - I've now been told that there were a batch of D4s with what is now a recognised fault with the not-so-Smart Key - and two new keys have been ordered for me. I'm now using my second key, which has given no problems thus far, and am praying the replacements rock up before this happens again.

The best thing about all of this is that I now know how to deal with this situation if it ever happens again. Two weeks earlier I'd been out on a back track 400 km NE of Leonora, 50 km from anywhere and on a road that sees about 2 vehicles a week! Glad it didn't happen then... Time for a sat-phone, epirb, CB or Spot unit I think.

Hope this story is of use to others who might also have the dodgy key sets.

had some issue with trailer brake redarc stuff locked up drum, anyways, turned the d4 off, next morning vehicle lights were on, trailer lights not, blown fuse those lights
then no smart key, tried most tricks, holding battery wire together, removing fuse f17, have two good keys CARSOFT V2 A GIVE KVM FAULT code u201 f, getting pretty fed up with this LR, Does anyone know if the module could fry, or even where it is, hoping someone can assist, with thanks