2018 LEXUS LS500H heating

3054-5. Using the driving support systems
LS500h_OM_OM50F42U_(U) 4
Driving ■
Sounds and vibrations caused by the
ABS, brake assist, VS C, TRAC, hill-start
assist control and VGRS systems●
A sound may be heard from the engine
compartment when the brake pedal is
depressed repeatedly, when the hybrid
system is started or just after the vehicle
begins to move. This sound does not indi-
cate that a malfunction has occurred in
any of these systems.●
Any of the following conditions may
occur when the above systems are oper-
ating. None of these indicates that a mal-
function has occurred.
• Vibrations may be felt through the vehicle
body and steering.
• A motor sound may be heard also after
the vehicle comes to a stop.■
ECB operating sound
ECB operating sound may be heard in the
following cases, but it does not indicate that
a malfunction has occurred. ●
Operating sound heard from the engine
compartment when the brake pedal is
operated.●
Motor sound of the brake system heard
from the front part of the vehicle when
the driver’s door is opened.●
Operating sound heard from the engine
compartment when one or two minutes
passed after the stop of the hybrid sys-
tem.■
EPS, VGRS and DRS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■
Automatic reactivation of TRAC and
VSC systems
After turning the TRAC and VSC systems
off, the systems will be automatically
re-enabled in the following situations:
●
When the power switch is turned off
●
If only the TRAC system is turned off, the
TRAC will turn on when vehicle speed
increases
If both the TRAC and VSC systems are
turned off, automatic re-enabling will not
occur when vehicle speed increases. ■
Reduced effectiveness of the EPS sys-
tem
The effectiveness of the EPS system is
reduced to prevent the system from over-
heating when there is frequent steering
input over an extended period of time. The
steering wheel may feel heavy as a result.
Should this occur, re frain from excessive
steering input or stop the vehicle and turn
the hybrid system off. The EPS system
should return to normal within 10 minutes. ■
Secondary Collision Brake operating
conditions
The vehicle speed is approximately 6 mph
(10 km/h) or more and the airbag sensor
detects a collision. (The Secondary Colli-
sion Brake will not operate when the vehicle
speed is below approximately 6 mph [10
km/h].) ■
Secondary Collision Brake automatic
cancellation
The Secondary Collision Brake is automati-
cally canceled in the following situations: ●
The vehicle speed drops below approxi-
mately 6 mph (10 km/h) ●
A certain amount of time elapses during
operation ●
The accelerator pedal is depressed a
large amount ■
When “Check VGRS System” or
“CHECK DRS” is displayed on the
multi-information display
The VGRS or DRS may not operate prop-
erly. Have the vehicle inspected by your
Lexus dealer.
WARNING
■
The ABS does not operate effectively
when
●
The limits of tire gripping performance
have been exceeded (such as exces-
sively worn tires on a snow covered
road).
●
The vehicle hydroplanes while driving
at high speed on wet or slick roads.

3074-6. Driving tips
LS500h_OM_OM50F42U_(U) 4
Driving 4-6.Driving tips
When using Eco drive mode, the
torque corresponding to the accelera-
tor pedal depression amount can be
generated more smoothly than it is in
normal conditions. In addition, the
operation of the air conditioning sys-
tem (heating/cooling) will be mini-
mized, improving the fuel economy.
( → P.298)
The Eco-friendly driving is possible by
keeping the indicate of Hybrid System
Indicator within Eco area. ( → P.78, 83)
Shift the shift position to D when
stopped at a traffic light, or driving in
heavy traffic etc. Shift the shift position
to P when parking. When using the N
position, there is no positive effect on
fuel consumption. In the N position, the
gasoline engine operates but electric-
ity cannot be generated. Also, when
using the air conditio ning system, etc.,
the hybrid battery (traction battery)
power is consumed.  Drive your vehicle smoothly. Avoid
abrupt acceleration and decelera-
tion. Gradual acceleration and
deceleration will make more effec-
tive use of the electric motor (trac-
tion motor) without having to use
gasoline engine power.
 Avoid repeated acceleration.
Repeated acceleration consumes
hybrid battery (traction battery)
power, resulting in poor fuel con-
sumption. Battery power can be
restored by driving with the acceler-
ator pedal slightly released.
Make sure to operate the brakes gently
and in a timely manner. A greater
amount of electrical energy can be
regenerated when slowing down.
Repeated acceleration and decelera-
tion, as well as long waits at traffic
lights, will lead to bad fuel economy.
Check traffic reports before leaving
and avoid delays as much as possible.
When driving in a traffic jam, gently
release the brake pedal to allow the
vehicle to move forward slightly while
avoiding overuse of the accelerator
pedal. Doing so can help control
excessive gasoline consumption.Hybrid vehicle driving tips For economical and ecological
driving, pay attention to the follow-
ing points:
Using Eco drive mode
Use of Hybrid System Indicator
Changing the shift position Accelerator pedal/brake pedal
operation
When braking
Delays

3215-2. Lexus Climate Concierge
LS500h_OM_OM50F42U_(U) 5
Interior features 5-2.Lexus Climate Concierge
Select The indicator on the Lexus Climate Con-
cierge control screen illuminates, and the
automatic air conditioning system, seat
heaters and ventilators, and heated steer-
ing wheel operate in automatic mode.
If any of the system is operated manually,
the indicator turns off. However, all other
functions continue to operate in automatic
mode. ■
Changing Lexus Climate Con-
cierge control screen between
front/rear (vehicles with 4-ZONE
climate control)
Select “Rear” to display the rear air
conditioning system screen. Select “Front” to display the front air condi-
tioning system screen.
■
When using the Lexus Climate Con-
cierge
Lexus Climate Concierge can be operated
on the sub function menu or option control
screen. ( → P.326)
■
Automatic air conditioning system
( → P.323, 333)
The temperature can be adjusted inde-
pendently for each seat. ■
Seat heaters and ventilators
( → P.336)
Heating or ventilation is automatically
selected according to the set tempera-
ture of the air conditioning system, the
outside temperature, etc. ■
Heated steering wheel (if
equipped) ( → P.336)
Heated steering wheel operates auto-
matically according to the set tempera-Lexus Climate Concierge The seat heaters, seat ventilators
and heated steering wheel (if
equipped) are each automatically
controlled according to the set
temperature of the air conditioning
system, the outside and cabin tem-
perature, etc. Lexus Climate Con-
cierge allows a comfortable
condition to be maintained without
adjusting each system.
Press the “MENU” button on the
Remote Touch to display the main
menu and move the cursor to
to display the climate control short-
cut buttons. Then, select to dis-
play the Lexus Climate Concierge
control screen.
Turning on Lexus Climate Con-
cierge Operation of each system

3255-3. Using the air conditio ning system and defogger
LS500h_OM_OM50F42U_(U) 5
Interior features ●
When the power switch is turned off, the
current air conditioning settings will auto-
matically be registered to the electronic
key that was used to unlock the vehicle.●
The system may not operate correctly if
more than one electr onic key is in the
vicinity or if the smart access system with
push-button start is used to unlock a pas-
senger door.●
The doors that can recall the air condi-
tioning setting *
when unlocked using the
smart access system with push-button
start can be changed. For details, contact
your Lexus dealer. *
: The doors that can recall the driving
position memory are changed at the
same time.■
Operation of the air conditioning sys-
tem in Eco drive mode
In Eco drive mode, the air conditioning sys-
tem is controlled as follows to prioritize fuel
efficiency: ●
Engine speed and compressor operation
controlled to restri ct heating/cooling
capacity●
Fan speed restricted when automatic
mode is selected
To improve air condit ioning performance,
perform the following operations: ●
Turn off eco air conditioning mode
( → P.326) ●
Adjust the fan speed●
Turn off Eco drive mode ( → P.298)
■
When the outside temperature falls to
nearly 32°F (0°C)
The dehumidification function may not
operate even when “A/C” is selected.
■
Ventilation and air conditioning odors
●
To let fresh air in, set the air conditioning
system to the outside air mode.
●
During use, various odors from inside and
outside the vehicle may enter into and
accumulate in the air conditioning sys-
tem. This may then cause odor to be
emitted from the vents.
●
To reduce potential odors from occur- ring:
• It is recommended that the air condition-
ing system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be
delayed for a short pe riod of time imme-
diately after the air conditioning system is
started in automatic mode or with the
micro dust and pollen filter on. ●
When parking, the system automatically
switches to outside air mode to encour-
age better air circulation throughout the
vehicle, helping to reduce odors that
occur when starting the vehicle. ■
Using the voice command system
Air conditioning system can be operated
using voice commands. For details, refer to
the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”. ■
Air conditioning filter
→ P.411 ■
Customization
Some functions can be customized.
( → P.481)
WARNING■
To prevent the windshield from fog-
ging up
Do not use the windshield defogger
switch during cool air operation in
extremely humid weather. The difference
between the temperature of the outside
air and that of the windshield can cause
the outer surface of the windshield to fog
up, blocking your vision.
■
When the outside rear view mirror
defoggers are operating
Do not touch the outside rear view mir-
ror surfaces, as they can become very
hot and burn you.

3395-3. Using the air conditio ning system and defogger
LS500h_OM_OM50F42U_(U) 5
Interior features speed level and leve l indicator (blue)
change as follows:
AUTO → Hi → Mid → Lo → OFF
Shortcut screen
Adjust the rear seat heater tem-
perature levelEach time the switch is selected, the tem-
perature level and leve l indicator (orange)
change as follows:
AUTO → Hi → Mid → Lo → OFF
Adjust the rear seat ventilator fan
speed levelEach time the switch is selected, the fan
speed level and leve l indicator (blue)
change as follows:
AUTO → Hi → Mid → Lo → OFF■
Rear control panel (if equipped)
Increases the rear seat heater tem-
perature levelThe seat ventilator can be adjusted in 3 lev-
els. (Low, Mid or Hi) Enables/Disables the automatic
mode of the rear seat heaters
Decreases the rear seat heater
temperature level If this switch is select ed when the rear seat
heater temperature level is set to Lo, the
rear seat heater will turn off. ■
The heated steering wheel, seat heaters
and seat ventilators wheel can be used
when
The power switch is in ON mode. ■
Air conditioning system-linked control
mode
When the seat ventilator fan speed level is
Hi, the seat ventilato r fan speed becomes
higher according to the fan speed of the air
conditioning system. ■
Customization
Some functions can be customized.
( → P.481)A
B
A WARNING■
To prevent overheating and minor
burn injuries
Observe the following precautions when
using the seat heaters. ●
Do not cover the seat with a blanket or
cushion when using the seat heater.
●
Do not use seat heater more than nec-
essary. B
C

4537-2. Steps to take in an emergency
LS500h_OM_OM50F42U_(U) 7
When trouble arises 
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 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.455) Water can be used in an emergency if If your vehicle overheats The following may indicate that
your vehicle is overheating.
 The engine coolant temperature
gauge ( → P.77, 81) 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 Reduced Output
Power” is shown on the
multi-information display.
 Steam comes out from under the
hood.
Correction procedures A
B
A
B
C
D

4938-2. Customization
LS500h_OM_OM50F42U_(U) 8
Vehicle specifications *
:If equipped ■
Heated steering wheel *
( → P.336)*
:If equipped ■
Illumination ( → P.340)Right-hand rear seat tem-
perature preference in auto-
matic mode *
Standard -2 (cooler) to 2
(warmer) O — — O
Power switch linked auto-
matic activation of the
left-hand rear seat
heater/ventilator *
Off On O — — O
Power switch linked auto-
matic activation of the
right-hand rear seat
heater/ventilator *
Off On O — — O
Function Default setting Customized set-
ting
Steering wheel heating pref-
erence in automatic mode Standard -2 (low) to 2
(high) O — — O
Function Default setting Customized set-
ting
Time elapsed before the inte-
rior lights turn off 15 seconds Off
O — — O7.5 seconds
30 seconds
Operation after the power
switch is turned off On Off — — — O
Operation when the doors
are unlocked On Off — — — O
Operation when you
approach the vehicle with the
electronic key on your person On Off — — — O
Footwell lights On Off — — — OFunction Default setting Customized set-
ting A B C D
A B C D
A B C D

512 Alphabetical Index
LS500h_OM_OM50F42U_(U) C
Card key .......................................................... 104
Care
Aluminum wheels ...................................... 370
Exterior ........................................................... 370
Interior ............................................................. 373
Seat belts........................................................ 373
Cargo capacity...............................................166
Cargo net ....................................................... 348
Center Display ...............................................316
Chains ............................................................... 310
Child restraint system
Fixed with a LATCH system .................. 53
Fixed with a seat belt................................... 49
Front passenger occupa nt classification
system ............................................................. 40
Points to remember .................................... 45
Riding with children ..................................... 45
Types of child restraint system installation
method ........................................................... 46
Using an anchor bracket .......................... 55
Child safety
12-volt battery precautions ........ 394, 451
Airbag precautions...................................... 34
Child restraint system................................. 46
Heated steering wheel and seat heater
precautions................................................ 337
How your child should wear the seat belt
............................................................................ 25
Moon roof precautions ............................154
Power window lock switch.....................153
Power window precautions ...................152
Rear door child-protectors ....................... 111
Removed electronic key battery precau-
tions ................................................................. 414
Seat belt extender precautions ............. 25
Seat belt precautions .................................. 45
Trunk precautions .........................................112
Child-protectors...............................................111
Cleaning
Aluminum wheels ...................................... 370 Exterior............................................................370
Interior ............................................................. 373
Radar sensor ........................ 199, 200, 206
Seat belts ........................................................ 373
Clock ................................................. 77, 81, 353
Clock light ...................................................... 340
Coat hooks..................................................... 352
Coin holder .................................................... 345
Condenser .......................................................391
Console box .................................................. 346
Cooling system............................................. 390
Engine overheating...................................453
Hybrid system overheating ..................454
Cornering lights .............................................187
Cruise control
Dynamic radar cruise control with
full-speed range ..........................247, 250
Cup holders ................................................... 345
Current fuel consumption .......................... 88
Curtain shield airbags .................................. 29
Customizable features ............................... 481
D
Daytime running light system .................. 185
Defogger
Outside rear view mirrors..................... 324
Rear window ................................................ 324
Windshield .................................................... 324
Differential
Front differential oi l............. ...................... 465
Rear differential oil......... .......... ........... ...... 465
Dimension ...................................................... 460
Dinghy towing................................................. 167
Display
Center Display ............................................. 316
Dynamic radar cruise control with
full-speed range ..................................... 250
Energy monitor .............................................. 96
Head-up display............................................ 92
Intuitive parking assist ..............................266
LKA (Lane-Keeping Assist) ................. 243
LTA (Lane-Tracing Assist) ................... 234