Temperamental Issue With Key Fob

[Sunny K]

Hi Chaps,

Can any of you help me? I have a 2010 IS250 and twice now the key fob has stopped working to open/lock doors. However the bizarre thing is I could still open the boot by walking up to it, just neither of the two front doors would acknowledge me standing by it despite holding the key right besides the door. I had to open the door manually using the key (and setting the alarm off ) then start the car by placing the key by the start/stop engine button for it to be detected.

I thought the Battery in the key was dead so visited a watch shop for them to replace the Battery, they tested the Battery and told me it had full charge! So I returned to my car still having to use the manual key at this stage.

I returned home and left it a few hours...returned to the car and all of a sudden its been working fine again ever since.

My car is still under warranty for about another 2 months and I know Lexus won't really do anything unless I can replicate the issue to them (which I can't now). Have any of you experienced this issue or know what the issue can be?

I'd appreciate any help.

Cheers,

Sunny

[stevet]

Could be some kind of wireless interference. I have regular customer where I can't use their car park. No matter which space I use the fobs won't work, just parking 50ft away on the road and they work fine.

[normski2]

Does indeed sound like radio interference going on there. Quite a few people have reported similar occurrences.

[Sunny K]

That does make sense however this from was my home drive where the car has been parked for nearly 3 years! Once I parked in town when I went to get a new Battery the fob still wasn't working there either! I'm confused!

[Exdee]

Try using the spare fob the next time it happens?

[Sunny K]

Try using the spare fob the next time it happens?

Yea will do...will need to get a Battery for that one though because I know its dead!

[normski2]

I always get a pack of 4 from eBay. Then you have 2 spares too.