Lexus LS500h, Manual, Page: 71 / 524

71
1-5. Theft deterrent system
LS500h_OM_(U)_1810
1
For safety and security
1-5.Theft deterrent system
The indicator light flashes after the
power switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the power switch has been turned to
ACCESSORY or ON mode to indi-
cate that the system has been can-
celed.
■ System maintenance
The vehicle has a maintenance-free type
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 touch-
ing a key to the security system (key with
a built-in transponder chip) of another
vehicle
■
Certification for the immobilizer system

For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico
Immobilizer system
The vehicle’s keys have built-in tran-
sponder chips that prevent the
hybrid system from starting if a 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.
This system is designed to help pre-
vent vehicle theft but does not
guarantee absolute security
against all vehicle thefts.
Operating the system