See also:

Theft prevention labels (for USA)
These labels are attached to the vehicle to reduce vehicle theft by facilitating the tracing and recovery of parts from stolen vehicles. Do not remove under penalty of law. ...

Security and system setup
Security setting items and operation procedures To enter the menu for each function, follow the steps below using a voice command or : Setting or changing the PIN (Personal Identification Number) ...

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. ...