Has anyone experienced this? I was driving for some time then stopped the car whilst I went into a shop for about 10 minutes leaving two people in the car. The car was left unlocked with the key in one of the mug holder spaces in the centre of the car. When I returned and tried to start the car nothing happened but a message saying something like "key not found refer to manual". I locked the car and unlocked it and it started OK. I put new batteries in the keys a couple of months ago. Any suggestions? 3 x FL1 2 manual + 1 auto
5 x FL2 4 manual + 1 auto
Now Discovery Sport P250 MHEV SE

Same happened to my DS this week. Just a glitch I suppose. Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

Happens a lot with me as well. I've tried holding the key to the underneath of the steering column as was once recommended, but that doesn't work. I just single lock the car (when still in it) then unlock it and all is well. Updated- Waiting for a Scotland v England 6 Nations home win. 24th Feb 2018
Gone-1972 88 SWB Soft top
Gone-1981 24v FFR Lightweight
Gone-2009 Freelander 2 TD4 GS manual
Gone before it bankrupted me- 2008 Discovery 3 TDV6 Auto
2013 Freelander 2 SD4 GS Auto

I would guess that you switched the engine off, which would mean in the 10 minutes you were away all the ECU shut down to sleep and the immobiliser enabled. The security system would then need to be switched on/off to switch off the immobiliser....

I've found the car can't see the key if I put the bunch in the cup holder or the storage cubby, I guess its just a blind spot! 2000 Xei 1.8 gone
2004 HSE Td4 Auto, MT's, sump guard, sliderz - gone
2014 GS Man - AT's, Mantec Sump guard and tank guard, split charger in boot, towbar, work in progress...

Regular event. I just sit there and lock and unlock again, not failed yet.

Down to where I have put the keys I guess, always getting out after a trip and no ideas where I put them. FL2 MY10 TD4 GS traded in at 2 years
FL2 MY13 TD4 GS Current

Again, a fairly frequent event for me. Nothing to be concerned about.

i have had this is the key is in the same pocket as my phone

i think the phone interferes with the wireless signal from the key