Lexus LX 470, Owner'S Manual

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KEYS AND DOORS
11
11G035c
Do not bend the key grip or flat key.
Do not cover the key grip or flat key with any material
that cuts off electromagnetic waves.
Do not knock the key or flat key hard against other
objects.
Do not leave the key or flat key exposed to high
temperatures for a long period, such as on the
dashboard or hood under direct sunlight.
Do not put the key or flat key in water or wash it in an
ultrasonic washer.
Do not use the key or flat key with electromagnetic
materials.
ENGINE IMMOBILISER SYSTEM
11X020
The engine immobiliser system is a theft prevention
system. When you insert the key in the ignition switch, the
transponder chip in the key’s head transmits an electronic
code to the vehicle. The engine will start only when the
electronic code in the chip corresponds to the registered
ID code for the vehicle.
The system is automatically set when the key is removed from
the ignition switch. At this time, the security indicator light
flashes. When you insert the key in the ignition switch, the
security indicator light goes out and the system is canceled
automatically, which enables the engine to start.
For your Lexus dealer to make you a new key with built−in
transponder chip, your dealer will need your key number and
master key. However, there is a limit to the number of
additional keys your Lexus dealer can make for you.