If You Lose Your Keys - Lexus SC 430 2001 Owner's Manual

5-2. Steps to take in an emergency

If you lose your keys

New genuine Lexus keys can be made by your Lexus dealer using master key
and the key number stamped on your key number plate.
If all the master keys are lost, the on-board computer must also be replaced.
If a key with a built-in remote control is lost
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The vehicle settings can be changed so that the wireless remote control function
does not operate.
Contact your Lexus dealer for more information.
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