2018 LEXUS LS500H Owners Manual

651-3. Hybrid system
LS500h_OM_OM50F42U_(U) 1
For safety and security tact your Lexus dealer.

66 1-4. Theft deterrent system
LS500h_OM_OM50F42U_(U) 1-4.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 RicoImmobilizer 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

671-4. Theft deterrent system
LS500h_OM_OM50F42U_(U) 1
For safety and security 
For vehicles sold in Canada
NOTICE■
To ensure the system operates cor-
rectly
Do not modify or remove the system. If
modified or removed, the proper opera-
tion of the system cannot be guaranteed.

68 1-4. Theft deterrent system
LS500h_OM_OM50F42U_(U) ■
Items to check before locking the
vehicle
To prevent unexpected triggering of
the alarm and vehicle theft, make sure
of the following:
 Nobody is in the vehicle.
 The windows and moon roof are
closed before the alarm is set.
 No valuables or other personal
items are left in the vehicle. ■
Setting
Close the doors, trunk and hood, and
lock all the doors. The system will be
set automatically after 30 seconds. The indicator light changes from being on
to flashing when the system is set. ■
Canceling or stopping
Do one of the following to deactivate
or stop the alarms:
 Unlock the doors.
 Turn the power switch to ACCES-
SORY or ON mode, or start the
hybrid system. (The alarm will be
deactivated or stopped after a few
seconds.) ■
System maintenance
The vehicle has a maintenance-free type
alarm system. ■
Triggering of the alarm
The alarm may be triggered in the following
situations:
(Stopping the alarm deactivates the alarm
system.) ●
The trunk is opened using the mechanical
key.
●
A person inside the vehicle opens a door,
the trunk or hood, or unlocks the vehicle.Alarm The alarm uses light and sound to
give an alert when an intrusion is
detected.
The alarm is triggered in the follow-
ing situations when the alarm is set:
 A locked door or trunk is
unlocked or opened in any way
other than using the entry func-
tion, wireless remote control or
mechanical key. (The doors will
lock again automatically.)
 The hood is opened.
Setting/canceling/stopping the
alarm system

691-4. Theft deterrent system
LS500h_OM_OM50F42U_(U) 1
For safety and security ●
The 12-volt battery is recharged or
replaced when the vehicle is locked.
( → P.450)
■
Alarm-operated door lock
In the following cases, depending on the sit-
uation, the door may automatically lock to
prevent improper entry into the vehicle: ●
When a person remaining in the vehicle
unlocks the door and the alarm is acti-
vated.●
While the alarm is activated, a person
remaining in the vehicle unlocks the door.
NOTICE■
To ensure the system operates cor-
rectly
Do not modify or remove the system. If
modified or removed, the proper opera-
tion of the system cannot be guaranteed.

70 1-4. Theft deterrent system
LS500h_OM_OM50F42U_(U)

71
LS500h_OM_OM50F42U_(U) 2 2
Vehicle status information and indicators Vehicle status information
and indicators .
2-1. Instrument cluster
Warning lights and indicators
............................................................ 72
Gauges and meters (except F
SPORT models) ........................ 77
Gauges and meters (F SPORT
models) ........................................... 81
Multi-information display.......... 86
Head-up display ........................... 92
Energy monitor/consumption
screen ............................................ 96

72 2-1. Instrument cluster
LS500h_OM_OM50F42U_(U) 2-1.Instrument cluster
For the purpose of explanatio n, the following illustrations display all warning lights
and indicators illuminated. 
Except F SPORT models

F SPORT modelsWarning lights and indicators The warning lights and indicators on th e instrument cluster, center panel and
outside rear view mirrors inform the driver of the status of the vehicle’s various
systems.
Warning lights and indicators displayed on the instrument cluster