Thread: Strange fault D4

Originally Posted by scarry

Haven't spoken to the dealer yet,but the D4 has been intermittently bringing up a message something like 'cannot detect smart key refer handbook'.It only happens occasionally when the engine is running & the passenger door is opened.Happened on the farm when the passeneger gets out to open a gate,when door is closed,the message usually goes away.If it doesn't go away,opening the passenger door & then shutting it makes the message go away.
I didn't want to turn the engine off & see if it would start as we were in a remote area.
The key was in the centre console,and moving it around in the vehicle did not change the message.

Hasn't done it for the last 4 days,key has been in same spot & we have had the passenger door opened many times.

Anyone had this type of fault?

Change the battery in the key remote. Instructions are in your manual. Battery World have the battery. I think they use the same size in the Prado, so your local Toyota dealer may carry the correct size as well.

Hi Paul,

I've had that heaps in the almost three years I've owned the car. But never tied it down to a specific event.

My D4 is quirky, electric windows do weird stuff....open a door when they are running to close and they open again. Applying the handbrake can do similar things. I don't like it, can't get LR to find out why, but it now doesn't bother me.

Small price to pay for a freakin awesome car.

Oh, just to give you confidence.....I've never had an issue turning the car off and it finding the key on restart.

I now carry a spare battery in the glove box.....they don't give you much warning. You can get the battery in chemists and Mr Minutes etc....anywhere really.

However, not fnding the smartkey without a battery warning in mine is just a quirk. I've changed two batteries in 3 years and had the warning dozens of times. If you have anything that is wireless or bluetooth, you'll know...they all stuff up on occasions.

Hope this helps,

Kev.

BTW....still give LR a call.

Paul,

I have had my D4 for 6 months now and it has happened only once to me, can't speak for when my other half is driving. Similar you, it happened when car was running and I had got in and out of car and engine was running - key stayed in car though.

I could not clear the message, except by turning engine off and back on again but has not reappeared since. Thanks to other suggestions about batteries - I think I will get a spare to put in the glove box - easy insurance.

Pat

Yer i was thinking the fob battery,but don't think it was the issue.Another thing that was strange happened on Saturday last,the dash readout temperature stayed at 4 degrees all day.It was only 4 degrees early in the day.Since then it has appeared to work correctly.

The fob issue has not reappeared.

It probably will one day in some remote area.......

Hi guys, I work for a dealer.

This is a common problem, some do it some don't . Land Rover are currently looking for a fix for it. There's not really a whole lot we can do at the moment. I don't recommend replacing the battery until you get a "Key Battery Low" message on your dash.

Unfortunately it's something you sort of have to deal with, but with most cars it doesn't happen very regularly, hopefully there is a fix soon.

Just rechecked this issue, there has been an update dice I last checked it.

Land Rover engineering say te fault is cause by metallic objects such as laptops, phones, iPods or other inch devices interfering the with key signal.

Another reason they say is due to the position of they key itself. The best place to keep the key to ensure this issue does not persist is right next to the gear lever on the left hand side.

Hope this solves your issue!

-tech23

I concur, I have a laptop DC-DC charger in the vehicle (12v > 18v) which wreaks havoc with the key!

Move them apart and no worries...

Ipod chargers etc can mess with it too.

Originally Posted by LRTech23

Just rechecked this issue, there has been an update dice I last checked it.

Land Rover engineering say te fault is cause by metallic objects such as laptops, phones, iPods or other inch devices interfering the with key signal.

Another reason they say is due to the position of they key itself. The best place to keep the key to ensure this issue does not persist is right next to the gear lever on the left hand side.

Hope this solves your issue!

-tech23

kind of ironic that statement isnt it