If you lose your keys
Lexus GX / Lexus GX Owners Manual / When trouble arises / Steps to take in an emergency / If you lose your keys
New genuine Lexus keys can be made by your Lexus dealer using the other key and the key number stamped on your key number plate.
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Key information
Keys
Using the mechanical key
To take out the mechanical key, slide the release lever and take the key out.
After using the mechanical key, store it in the electronic key. Carry the mechanical
...
When the VSC/TRAC or Active TRAC/hill-start assist control systems are operating
If the vehicle is in danger of slip- ping or rolling backward when starting on
an incline, or if any of the drive wheels spins, the slip indi- cator light flashes
to indicate that the VSC/TRAC or ...