Funride

I lost one of my key fobs - it has to be somewhere in my house because I used it to drive home. Is there any kind of tracker/locator that I can use?

CALtd

I suspect the FOB is passive until receiving a query from the car. I would search for someone that has built a device that captures the transmission & response signals. Then you might be able mimic the car's signal to get a response. In the end, it will probably be cheaper to just buy a replacement FOB.

jsmith

It's ~$200 MSRP. Try hypnosis to remember where you left it ;-)

Funride

I have a feeling it's under something, behind something...........the cat did it LOL. I will keep on looking.

Funride

Found it in a sweater pocket! I'm so relieved, but it still would be nice if there was a built-in tracker.

Bylan

There is no built in tracker. No key in the world, to my knowledge, is that sophisticated, at least not yet. You could get something like a Tile, which clips to your keychain and can be tracked and it beeps.

Funride

I don't keep my fob on my keychain because I like to just put it in a pocket when driving and my keychain is bulky. It just seems to me that some kind of tracker app from Lexus would not be that difficult to develop.