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2000 Lexus RX 300 wrong key locked up theft system

Tiny
LEXUSRX
  • MEMBER
  • 2000 LEXUS RX 300
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 107,770 MILES
Hello
My wife and I both own a lexus.
I accidently used my lexus key (es) to try to start my wife's car(rx). Now her key will not turn in the ignition and steering wheel will not turn. I tried jiggling the steering wheel back and forth and turning the key at the same time. It will also not come out of park. I disconnected and reconnected the positive battery connection, but it didn't do any good. I live 60 miles from the nearest lexus dealer. Any suggestions? Thank You
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Sunday, January 27th, 2008 AT 4:38 PM

6 Replies

Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
I am not to good with the alarms for those cars, but you can try disconnecting the positive side of the battery. Without the positive side of the battery hooked up use a jumper wire touch the positve cable that you took off to the ground. After a minutes disconnect the jumper wire. Hook the battery back up, wait a minute then try her key, you might have to put it in and out a couple of times. There are other moderators tha know more about it but it is something you can try.
Ps. Make sure the battery has a good charge.
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Sunday, January 27th, 2008 AT 8:24 PM
Tiny
LOSTINMARS
  • MECHANIC
  • 222 POSTS
The alarm will not keep the key from physically turning. Chances are you might of damaged the ignition lock cylinder.
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Monday, January 28th, 2008 AT 8:35 PM
Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
I looked up service bultein and did not find any in reference to resetting the ignition. I did find that the key has a computer chip in it that locks the ignition system of the vehicle. try using the key with out any other keys around.


https://www.2carpros.com/forum/automotive_pictures/54223_hs_1.jpg

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Tuesday, January 29th, 2008 AT 10:02 AM
Tiny
JOHN_DEERE_BOY
  • MEMBER
  • 1 POST
How did you solve your problem? I just did the same thing. I mistakenly put the key to my 2002 ES into my wife's 2004 RX and ended up locking the theft system. Please let me know how you solved the problem.
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Friday, February 15th, 2008 AT 9:11 PM
Tiny
LEXUSRX
  • MEMBER
  • 2 POSTS
Hello
My garage(not a lexus dealer) told me to use wd40. I used the red spray nozzle and sprayed some in the ignition, put my wife's key in and it turned instantly.
Try it and good luck.
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Saturday, February 16th, 2008 AT 8:55 PM
Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
You were lucky, I was talking to a locksmith that deals with just automobiles the other day. Inside the ignition switch there is a split chip. When someone uses a diferent key it breaks off a little piece inside the ignition making it so the igniton is inoperative. The piece is no bigger than a tip of a toothpick. You are lucky that the chip did not break off completly.
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Friday, February 29th, 2008 AT 2:29 PM

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