Page 204 of 523
2044-5. Using the driving support systems
LS500h_OM_(U)_1809
■If a warning message is displayed on the multi-information display
A system may be temporarily unavailable or there may be a malfunction in the system.
●In the following situations, perform the actions specified in the table. When the normal
operating conditions are detected, the message will disappear and the system will
become operational.
If the message does not disappear, contact your Lexus dealer.
SituationActions
When the area around a sensor is covered
with dirt, moisture (f ogged up, covered with
condensation, ice, etc.), or other foreign
matterTo clean the part of the windshield in front of
the front camera , use the windshield wipers
or the windshield defo gger of the air condi-
tioning system ( P.324).
Page 210 of 523
2104-5. Using the driving support systems
LS500h_OM_(U)_1809
■If a warning message is displayed on the multi-information display
A system may be temporarily unavailable or there may be a malfunction in the system.
●In the following situations, perform the actions specified in the table. When the normal
operating conditions are detected, the message will disappear and the system will
become operational.
If the message does not disappear, contact your Lexus dealer.
SituationActions
When the area around a sensor is covered
with dirt, moisture (f ogged up, covered with
condensation, ice, etc.), or other foreign
matterTo clean the part of the windshield in front of
the front camera , use the windshield wipers
or the windshield defo gger of the air condi-
tioning system ( P.324).
Page 318 of 523

3185-1. Remote Touch/Display
LS500h_OM_(U)_1809
*:If equipped
■Home screenTouch to display the audio control
screen.
Refer to “NAVIGATION AND
MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
Touch to display the rear air condi-
tioning control screen. ( P.335)
Touch to display the rear seat
adjustment screen. ( P.138)
Touch to display the relaxation seat
(if equipped) control screen.
( P.141) Touch to display the rear sunshade
(if equipped)/rear interior light con-
trol screen. (
P.357)
Touch to display the Rear Multi
Operation Panel settings screen.
( P.318)
Rear Multi Operation Panel unlock
button
Touch and hold until the unlock sta-
tus indicators are completely illumi-
nated to unlock the Rear Multi
Operation Panel.
Touch “Screen Lock” to lock the
Rear Multi Operation Panel sys-
tem. ( P.318)
Shortcut button
Shortcut screen is displayed. Touch
to display/hide commonly used
buttons for a selected mode on the
bottom portion of the screen.
button
Press to display the home screen.
When the screen is on, press and
hold to turn the screen off.
■Rear Multi Operation Panel set-
tings screen
Screen operation settings and the
brightness of the screen can be
changed.
Rear Multi Operation Panel*
The Rear Multi Operation Panel
built-into the rear armrest can be
used to operate the rear audio sys-
tem, air conditioning system, seat,
relaxsation, shade or lamp.
Rear Multi Operation Panel
overview
A
B
C
D
E
F
G
H
I
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