Hi all and happy new year,

Once again drawing on the collective knowledge of the forum....

Drove the car on Friday, everything worked fine. On Sunday the car was completely dead. Car was fitted with new Varta Silver AGM in August. I replaced the battery in the key fob but no change...

Monday evening I hooked the car up to a ctek mx7 which showed the battery was completely flat. It charged for about 20 hours until it showed full.

In the meanwhile I used the key in the key fob to get in through the drivers door. Interior lights went on but nothing else. When trying to turn on the ignition it shows message "smart key not found".

Upon opening the drivers door a second time I activated the alarm which I managed to turnof by hitting the hazard button in the car. Sound off but all lights now blinking.

Full battery, according to ctek, did not improve anything. I then tried to disconnect the battery for a couple of minutes and hooked it up again - car acted exactly as earlier i.e alarm still on and only interior lights working.

Then tried to start it with cables from our second car but to no effect.

My indy says I have done pretty much what I can from home and it needs to be towed. His only concern is if it is a security issue then it needs to go to LR and not to him and they are literally on the other side of town...

Does anyone have any idea what this could be and can anyone suggest any possible fixes?

As always, very grateful for all advice!

//J RR Vogue 4.4 TDV8 - 11
Toyota Land Cruiser Prado - 02

LR Discovery 4 SDV6 -11 - Gone
RR Vogue 3.6 TDV8 - Gone

Last edited by jackie-o on 27th Jan 2022 1:32pm. Edited 2 times in total

Quote:

I then tried to disconnect the battery for a couple of minutes and hooked it up again

No, Should I?

All i heard was my indy´s voice in my head to make sure not to short anything.... RR Vogue 4.4 TDV8 - 11
Toyota Land Cruiser Prado - 02

LR Discovery 4 SDV6 -11 - Gone
RR Vogue 3.6 TDV8 - Gone

Give it a try. It is a way of resetting the electronics. You can't lose anything. Cables off the battery and the ends touched together. John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

Thanks weegie!

So how long do they need to touch/connect, are we talking seconds or minutes? RR Vogue 4.4 TDV8 - 11
Toyota Land Cruiser Prado - 02

LR Discovery 4 SDV6 -11 - Gone
RR Vogue 3.6 TDV8 - Gone

About 20 seconds or so. John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

ok, will give it a try first thing in the morning!

On a related note; how can I access the rest of the car, most importantly the boot?

The central looking doesnt work... RR Vogue 4.4 TDV8 - 11
Toyota Land Cruiser Prado - 02

LR Discovery 4 SDV6 -11 - Gone
RR Vogue 3.6 TDV8 - Gone

Gonna have to climb over and use the manual release facility……

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Thanks both!

Tried Weegies suggestion but to no effect

Could this be a safety/security issue?

Something has obviously drained the battery and made the car lose contact with the smart key.

Would I be able to read fault codes if i cant even get the ignition on?

//j RR Vogue 4.4 TDV8 - 11
Toyota Land Cruiser Prado - 02

LR Discovery 4 SDV6 -11 - Gone
RR Vogue 3.6 TDV8 - Gone

You might be able to use the smart key if you hold it against the dash… it’s normally for if the fob battery is flat… worth a try. It’s in the manual.

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Thanks but already tried to no effect  RR Vogue 4.4 TDV8 - 11
Toyota Land Cruiser Prado - 02

LR Discovery 4 SDV6 -11 - Gone
RR Vogue 3.6 TDV8 - Gone

I believe there is a procedure for changing the battery in the key fob to stop it de coding itself, i don't have any experience with your age RR but could that be the reason?

Thanks but according to manual it´s just a straight swap RR Vogue 4.4 TDV8 - 11
Toyota Land Cruiser Prado - 02

LR Discovery 4 SDV6 -11 - Gone
RR Vogue 3.6 TDV8 - Gone

Can you now lock and unlock the vehicle using the remote key? If you can, lock and unlock it several times as this sometimes let's the car recognise the key again.

Try accessing the fuses behind the glovebox and removing fuse 17 (5amp, I think). Wait at least one minute and reinsert (check that the fuse is good!).

If that doesn't work, try another battery reset now that it's charged (disconnect, wait a couple of minutes and then reconnect).

If none of these work you may have an issue with the Keyless Vehicle Module. Other modules on the Canbus can also cause strange issues even if they may not be obvious. Have you had any water ingress or heavy condensation around any modules (boot area etc)?

Finally, is the battery definitely good? If it's been discharged for some time it may not have properly recovered. I'd connect.a good jumper pack or set your Ctek to Supply and try again.