Theft Deterrent System Engine Immobilizer System - Lexus IS F 2012 Owner's Manual

1-6. Theft deterrent system
Engine immobilizer system
The vehicle's keys have built-in transponder chips that prevent the engine
from starting if the key has not been previously registered in the vehicle's
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
System maintenance
■
The vehicle has a maintenance-free type engine immobilizer system.
Conditions that may cause the system to malfunction
■
If the grip portion of the key is in contact with a metallic object
●
If the key is in close proximity to or touching a key to the security system (key
●
with a built-in transponder chip) of another vehicle
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The indicator light flashes after
the "ENGINE START STOP"
switch has been turned OFF to
indicate that the system is oper-
ating.
The indicator light stops flashing
after the "ENGINE START
STOP" switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.