Hoyaa87

I by mistake put wife kep in my car she moved where it was suppose to hang and I got the keys mixed up so I tried to us her lexus rx 350 keys then I discovered my mistake and entered my 2007 Lexus rx 359 key and now the car wont start

Lexuswiz

iTrader: (1)

So when you use the correct key for your car it still will not start?

DennisMik

I wonder if Lexus uses a theft deterrent that is like Nissan. If you try to start the car with a non-registered key several times in a row, the ignition gets locked and even the correct key will not start the car. Does anyone know if this kind of system is on the Lexus?

tomr51

https://www.clublexus.com/forums/rx-...-be-reset.html


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Lexuswiz

iTrader: (1)

My experience is no but I'm not sure if maybe it was a fluke or they changed it for the 350's. I tried this twice, once when I made copies of the master and again when I installed my remote start. My 330 only came with a single master which I ordered 3 spares off eBay shortly after and had them cut at my local locksmith. Since I could program them myself, I decided to play around and insert all 3 unregistered keys and try to start it and make sure the cut was correct. Obviously car didn't start with any of the copies but when I put in the master, it cranked just fine. For my remote start since it was a keyless bypass, I got the key learning sequence wrong and it wouldn't learn the original master key. I easily kept remote starting it over 10 times without lockout before I got it working properly.

bwhitsonjr

Found this covered in the First Gen section... worth a try. Specifically in the part where you stick the working key in the door and turn it... read the thread.

https://www.clublexus.com/forums/is-...wrong-key.html

Being a Locksmith... I'm very familiar with many makes going into lock-out mode when trying the wrong key. But I'm not all too familiar with Lexus. Not a big following in my area of Texas.

Hope this helps.