Question about 1990 Lexus LS 400

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How to get a replacement key for the trunk without a master

My fuel door and trunk switch is broken

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  •  Stephen
    Stephen Jul 18, 2012

    The trunk key is different  from the door key ?

  • Stacy Dallas Jul 24, 2012

    I dont have a trunk key

  • david simmons Aug 01, 2012

    Stacy I have only one key to my 1990 LS 400, and it has a one button remote door lock unlock it will operate everything except the glove box. The second thing check to see if your key will unlock the trunk from inside the car this lock is located on the left side of the steering wheel down by the gas and trunk swiches. The next thing call 1 800 25 Lexus, or the dealership to get your key code you have to prove its your car. Last thing I think you are using the valet key but still check the fuses on the kick panel inside the cabin they are located under the dash left of the steering wheel on th firewall. Remember you have a lazer cut key and the dealer will thank you first before he takes your one hundred dollars for cutting you a key from your key code. Personally I would go with the fuses first,. You can go to Ebay and blank keys are cheap. Now the dealership told me that they could get the key code I think it was from the VIN number and my proof of ownership

  • Stacy Dallas Aug 20, 2012

    For the fuses what would I check for

  • Stacy Dallas Aug 20, 2012

    I also tried the key that did not unlock the trunck and also my trunk and fuel door switc

  • Stacy Dallas Aug 20, 2012

    switch is broken

  •  Stephen
    Stephen Aug 21, 2012

    My original question/comment was because my Lexus uses the same key for the ignition to unlock all of the doors and the trunk.  Does your ignition key not fit the truck lock ?

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To go a dealer with your other keys and they will fix your problem .you have to prove you own the car

Posted on Mar 19, 2015

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