Page 450 of 523

4507-2. Steps to take in an emergency
LS500h_OM_(U)_1809
If the engine coolant temperature
gauge enters the red zone or
“Engine Coolant Temp High Stop in
a Safe Place See Owner’s Manual”
is shown on the multi-information
display
1 Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the hybrid system.
2 If you see steam:
Carefully lift the hood after the
steam subsides.
If you do not see steam:
Carefully lift the hood.
3 After the hybrid system has cooled
down sufficiently, inspect the hoses
NOTICE
■When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entan-
gled in the cooling fan or engine drive
belt.
■To prevent damaging the vehicle
The exclusive jump starting terminal is to
be used when charging the 12-volt bat-
tery from another ve hicle in an emer-
gency. It cannot be used to jump start
another vehicle.
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
The engine coolant temperature
gauge ( P.81, 85) is in the red
zone or a loss of hybrid system
power is experienced. (For exam-
ple, the vehicle speed does not
increase.)
“Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” or “Hybrid System
Overheated Output Power
Reduced” is shown on the
multi-information display.
Steam comes out from under the
hood.
Correction procedures
Page 451 of 523

4517-2. Steps to take in an emergency
LS500h_OM_(U)_1809
7
When trouble arises
and radiator core (radiator) for any
leaks.
Radiators
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4 The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.
Reservoir
“F” line
“L” line
Coolant inlet cap
5 Add coolant if necessary.
(P.452)
Water can be used in an emergency if coolant is unavailable.
6
Start the hybrid system and turn the
air conditioning system on to check
that the radiator cooling fan oper-
ates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning
system is turned on immediately after a
cold start. Confirm that the fan is operating
by checking the fan sound and air flow. If it
is difficult to check these, turn the air con-
ditioning system on and off repeatedly.
(The fan may not oper ate in freezing tem-
peratures.)
7 If the fan is not operating:
Stop the hybrid system immediately
and contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the
nearest Lexus dealer.
If “Hybrid System Overheated Out-
put Power Reduced” is shown on the
multi-information display
1 Stop the vehicle in a safe place.
2 Stop the hybrid system and care-
fully lift the hood.
A
B
A
B
C
D
Page 452 of 523

4527-2. Steps to take in an emergency
LS500h_OM_(U)_1809
3After the hybrid system has cooled
down, inspect the hoses and radia-
tor core (radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks, immedi-
ately contact your Lexus dealer.
4The coolant level is satisfactory if it
is between the “F” and “L” lines on
the reservoir.
Reservoir
“F” line
“L” line
5 Remove the engine compartment
cover and add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
6
After stopping the hybrid system
and waiting for 5 minutes or more,
start the hybrid system again and
check for the multi-information dis-
play.
If the message does not disappear:
Stop the hybrid system and contact
your Lexus dealer.
If the message is not displayed:
The hybrid system temperature has
dropped and the vehicle may be
driven normally.
However, if the message appears again fre-
quently, contact your Lexus dealer.
■When adding engine coolant
Add coolant in accordance with the follow-
ing procedure.
A
B
A
B
C
Page 479 of 523

4798-2. Customization
LS500h_OM_(U)_1809
8
Vehicle specifications
8-2.Customization
■Changing by using the meter con-
trol switches
1 Press or to select .
2 Operate the meter control
switches to select the desired item
to be customized.
3 According to the display, select the
desired setting and then press .
To go back to the previous screen or exit
the customize mode, press .
■Changing by using the Remote
Touch
1 Press the “MENU” button on the
Remote Touch.
2 Select “Setup” on the menu screen
and select “Vehicle”.
3 Select “Vehicle Customization” or
“Drive Mode Customization”.
Various setting can be changed. Refer to the list of settings th
at can be changed for
details.
For details on the Remote Touch, refer
to the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S MAN-
UAL”.
■Changing by using the Rear Multi
Operation Panel (if equipped)
1 Display the home screen on the
Rear Multi Operation Panel and
then touch “Settings”.
2 Touch “Seat”.
3 Select the desired setting.
■When customizing using the Remote
Touch
Stop the vehicle in a safe place, apply the
parking brake, and shift the shift position to
P. Also, to prevent 12-volt battery discharge,
leave the hybrid system operating while
customizing the features.
Some function settings are changed simultaneously with other functions being cus-
Customizable features
Your vehicle includes a variety of
electronic features that can be per-
sonalized to your preferences. The
settings of these features can be
changed by using the meter control
switches, the Remote Touch, Rear
Multi Operation Panel or at your
Lexus dealer.
Customizing vehicle features
WARNING
■During customization
As the hybrid system needs to be operat-
ing during customizatio n, ensure that the
vehicle is parked in a place with ade-
quate ventilation. In a closed area such as
a garage, exhaust gases including harm-
ful carbon monoxide (CO) may collect
and enter the vehicle. This may lead to
death or a serious health hazard.
NOTICE
■During customization
To prevent 12-volt battery discharge,
ensure that the hybrid system is operat-
ing while customizing features.
Customizable features
Page 480 of 523

4808-2. Customization
LS500h_OM_(U)_1809
tomized. Contact your Lexus dealer for further details.
Settings that can be changed using the Remote Touch
Settings that can be changed using the meter control switches
Settings that can be changed using the Rear Multi Operation Panel (if
equipped)
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available, — = Not available
■Seat belts ( P.24)
*1: If equipped
*2: Vehicles with pre-collision se at belts with comfort function
■Vehicle proximity notification system ( P.65)
■Gauges, meters and multi-information display ( P.76, 81, 85, 90)
FunctionDefault settingCustomized set-
ting
Easy Access Buckle*1OnOff———O
Retraction of front seat belts
when vehicle speed reaches
approximately 12 mph (20
km/h)
*2
OnOff———O
Retraction of front seat belt
when corresponding front
door is opened or seat belt is
released
*2
OnOff———O
FunctionDefault settingCustomized set-ting
The volume of vehicle prox-
imity notification system
sound
Level1
Level2
———OLevel3
Function*1Default settingCustomized set-ting
LanguageEnglishFrenchOO——Spanish
A
B
C
D
ABCD
ABCD
ABCD
Page 481 of 523
4818-2. Customization
LS500h_OM_(U)_1809
8
Vehicle specifications
*1: For details about each function: P.94
*2: The default setting varies according to country.
Units*2miles (MPG)
km (km/L)
OO——km (L/100 km)
miles (MPG
Imperial)
Drive information 1
Current fuel con- sumption
Customizable items: P.92—O——
Average fuel
economy (after reset)
Drive information 2
Distance (driving range)
Average vehicle speed (after reset)
Clock12-hour display24-hour display—O——
Pop-up displayOnOff—O——
Accent colorColor 1Color 2OO——
Tachometer setting
Change accord-ing to driving modeAlways tachome- ter
—O——Always Hybrid
System Indicator
Rev indicator*34000 r/min.
2000 - 6600 r/min.
—O——
Off
Rev peak*3OnOff—O——
EV indicatorOnOff—O——
Suggestion functionOn
On (when the vehicle is stopped)
O——O
Off
Function*1Default settingCustomized set- tingABCD
Page 482 of 523
4828-2. Customization
LS500h_OM_(U)_1809
*3:F SPORT models
■Head-up Display* ( P.96)
*:If equipped
■Door lock ( P.112, 116, 443)
FunctionDefault settingCustomized set-
ting
Gauge informationHybrid System IndicatorTachometer—O——No content
Route guidance to destina-
tion/street name
*OnOff—O——
Driving support system dis-
playOnOff—O——
Compass*OnOff—O——
Audio system operation sta-
tusOnOff—O——
FunctionDefault settingCustomized set- ting
Unlocking using a mechani-
cal key
Driver’s door
unlocked in one step, all doors
unlocked in two step
All doors
unlocked in one step
———O
Automatic door locking func-
tionShift position
linked door lock- ing operationOff
O——OSpeed linked door locking operation
Automatic door unlocking
function
Shift position linked door
unlocking opera- tionOff
O——ODriver’s door linked door
unlocking opera- tion
Locking/unlocking of the
trunk when all doors are
locked/unlocked
OnOff———O
ABCD
ABCD
Page 488 of 523
4888-2. Customization
LS500h_OM_(U)_1809
■RSA (Road Sign Assist)* ( P.255)
*:If equipped
■BSM (Blind Spot Monitor) ( P.258)
Alert typeSteering wheel
vibrationBuzzer—O——
Alert sensitivityHighStandard—O——
Vehicle sway warning func-
tionOnOff—O——
Vehicle sway warning sensi-
tivityStandardHigh—O——Low
FunctionDefault settingCustomized set- ting
RSA (Road Sign Assist)OnOff—O——
Excess speed notification
methodDisplay only
No notification
—O——Display and buzzer
Excess speed notification
level1 mph (2 km/h)3 mph (5 km/h)—O——5 mph (10 km/h)
Other notifications method
(No-entry notification)Display only
No notification
—O——Display and buzzer
FunctionDefault settingCustomized set- ting
BSM (Blind Spot Monitor)OnOff—O——
Outside rear view mirror indi-
cator brightnessBrightDim—O——
FunctionDefault settingCustomized set-tingABCD
ABCD
ABCD