2021 Lexus LC500C heating

2214-5. Using the driving support systems
4
Driving
■EPS 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 engine 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.
■Operating conditions of Active Corner-
ing Assist
The system operates when the following
occurs.
●TRAC/VSC can operate
●The driver is attempting to accelerate
while turning
●The system detects th at the vehicle is
drifting to the outer side
●The brake pedal is released
■Secondary Collision Brake operating
conditions
The system operates when the SRS airbag
sensor detects a collision while the vehicle
is in motion. However, the system does not
operate in any of the following situations.
●The vehicle speed is below 6 mph (10
km/h)
●Components are damaged
■Secondary Collision Brake automatic
cancellation
The system is automatically canceled in any
of 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
■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, refrain from excessive
steering input or stop the vehicle and turn
the engine off. The EPS system should
return to normal within 10 minutes.
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.
■Stopping distance when the ABS is
operating may exceed that of normal
conditions
The ABS is not designed to shorten the
vehicle’s stopping distance. Always
maintain a safe distance from the vehicle
in front of you, especially in the following
situations:
●When driving on dirt, gravel or snow-
covered roads
●When driving over bumps in the road
●When driving over roads with pot-
holes or uneven surfaces
■TRAC/VSC may not operate effec-
tively when
Directional control and power may not
be achievable while driving on slippery
road surfaces, even if the TRAC/VSC
system is operating.
Drive the vehicle carefully in conditions
where stability and power may be lost.

2305-2. Lexus Climate Concierge
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, heated steering
wheel, and neck heaters operate in auto-
matic mode.
If any of the system is operated manually,
the indicator turns off. However, all other
functions continue to operate in automatic
mode.
■When using the Lexus Climate Con-
cierge
Lexus Climate Concierge can be operated
on the sub function menu or option control
screen. ( P.235)
■Automatic air conditioning system
( P.232)
The temperature can be adjusted indi-
vidually for the driver seat and passen-
ger seat.
■Seat heaters and ventilators
(  P.240)
Heating or ventilation is automatically
selected according to the set tempera-
ture of the air conditioning system, the
outside temperature, opening/closing
status of the soft top roof, etc.
The seat heater and ventilator of the
front passenger seat operate in auto-
matic mode if a passenger is detected.
■Heated steering wheel (if
equipped) ( P.240)
Heated steering wheel operates auto-
matically according to the set tem-
perature of the air conditioning system,
the outside temperature, open-
ing/closing status of the soft top roof,
Lexus Climate Concierge
The seat heaters, seat ventilators
and, heated steering wheel (if
equipped) and neck heaters (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 and select “Cli-
mate” to display the air condition-
ing control screen. Then, select
on the sub menu ( P.235) to dis-
play the Lexus Climate Concierge
control screen.
Turning on Lexus Climate Con-
cierge
Operation of each system

2345-3. Using the air conditioning system
■Outside/recirculated air mode
●Setting to the recirculated air mode tem-
porarily is recommended in preventing
dirty air from entering the vehicle interior
and helping to cool the vehicle when the
outside air temperature is high.
●Outside/recirculated air mode may
automatically switch depending on the
temperature setting or the inside tem-
perature.
■Registering air condit ioning settings to
electronic keys
●Unlocking the vehicle using an electronic
key and turning the engine switch to ON
will recall that key’s registered air condi-
tioning settings.
●When the engine 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 the
passenger 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 posi-
tion 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.235)
●Adjust the fan speed
●Turn off Eco drive mode ( P.203)
■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
system. 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 fresh air intake mode to
encourage better air circulation through-
out 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 SYSTEM OWNER’S
MANUAL”.
■Air conditioning filter
 P.296
■Air conditioning system refrigerant
●A label regarding the refrigerant of the
air conditioning system is attached to the
hood at the location shown in the follow-
ing illustration.

2425-3. Using the air conditioning system
Adjust the neck heater fan speed
level
The neck heater can be adjusted in 3 lev-
els.
When the neck heater is operated, the fan
speed level is displayed on the screen.
Automatic mode on/off indicators
When the automatic mode is on, the indi-
cator illuminates on the screen.
Sub function menu
When the sub function button on the
Remote Touch is pressed, the following
functions can be set to automatic mode.
: Left-hand side neck heater
: Right-hand side neck heater
■Side display
Display the air conditioning control
screen ( P.235)
Adjust the seat heater temperature
level
Each time the switch is selected, the tem-
perature level and level indicator (orange)
change as follows:
AUTO  Hi  Mid  Lo  Off
Adjust the seat ventilator fan speed
level
Each time the switch is selected, the fan
speed level and level indicator (blue)
change as follows:
AUTO  Hi  Mid  Lo  Off
Adjust the heated steering wheel
temperature level
Each time the switch is selected, the tem-
perature level and le vel indicator change
as follows:
AUTO  Hi  Lo  Off
■The heated steering wheel, seat heaters
and seat ventilators wheel can be used
when
The engine switch is in ON.
■Air conditioning system-linked control
mode
When the seat ventilator fan speed level is
Hi, the seat ventilator fan speed may
become higher according to the fan speed
of the air conditioning system.
■Customization
Steering wheel heating preference in auto-
matic mode and the automatic mode set-
tings for the seat heaters and ventilators can
be changed. (Customizable features:
 P.367)
A
B
C
A
B
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.
C
D

3457-2. Steps to take in an emergency
7
When trouble arises
1Stop the vehicle in a safe place and
turn off the air conditioning system,
and then stop the engine.
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 engine has cooled down
sufficiently, inspect the hoses and
radiator core (radiator) for any
leaks. Radiator
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.
Water can be used in an emergency if
coolant is unavailable.
6Start the engine 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
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
The engine coolant temperature
gauge ( P.75) is in the red zone
or a loss of engine power is expe-
rienced. (For example, the vehicle
speed does not increase.)
 “Engine Coolant Temp High” is
shown on the multi-information
display.
 Steam comes out from under the
hood.
Correction procedures
A
B
A
B
C
D

3748-2. Customization
■Automatic light control system (P.161)
■Lights ( P.161)
*: U.S.A. only
■Automatic air conditioning system ( P.232)
■Seat heater/seat ventilators ( P.240)
■Heated steering wheel* ( P.240)
*:If equipped
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2OO
Time elapsed before headlights
automatically turn off after doors
are closed
30 seconds
Off
OO60 seconds
90 seconds
Windshield wiper linked headlight
illuminationOnOffO
FunctionDefault settingCustomized setting
Daytime running lights*OnOffOO
Welcome light illumi nation controlOnOffO
FunctionDefault settingCustomized setting
A/C auto switch operationOnOffOO
Exhaust gas sensor sensitivityStandard-3 to 3OO
FunctionDefault settingCustomized setting
Driver’s seat temperature prefer-
ence in automatic modeStandard-2 (cooler) to 2
(warmer)OO
Passenger’s seat temperature
preference in automatic modeStandard-2 (cooler) to 2 (warmer)OO
FunctionDefault settingCustomized setting
Steering wheel heating preference
in automatic modeStandard-2 (low) to 2 (high)OO
ABC
ABC
ABC
ABC
ABC

Alphabetical index395
Exterior ...........................................................258
Interior ............................................................. 262
Seat belts........................................................ 262
Cargo capacity...............................................144
Cargo hooks ................................................. 248
Center Display ............................................. 226
Chains .............................................................. 224
Child restraint system................................... 46 Fixed with a LATCH system .................. 53
Fixed with a seat belt...................................50
Front passenger occupant classification system ............................................................... 41
Points to remember .................................... 46
Riding with children ..................................... 46
Types of child restraint system installation method ............................................................47
Child safety ....................................................... 46 Airbag precautions...................................... 33
Battery precautions ...................... 279, 337
Child restraint system..................................47
Heated steering wheel and seat heater precautions................................................ 240
How your child should wear the seat belt ............................................................................ 25
Installing child restraints ............................ 48
Power window lock switch.....................125
Power window precautions ................... 124
Removed electronic key battery precau- tions ...............................................................298
Seat belt extender precautions ............. 25
Seat belt precautions .................................. 46
Trunk precautions ...................................... 100
Cleaning...............................................258, 262 Aluminum wheels ...................................... 259
Exterior ...........................................................258
Interior ............................................................. 262
Radar sensor........................................ 173, 212
Seat belts........................................................ 262
Clock ........................................................ 75, 249
Condenser ......................................................277
Console box ...................................................247
Console box light .........................................247 Cooling system..............................................276
Engine overheating...................................345
Cornering lights .............................................163
Cruise control Dynamic radar cruise control with full-
speed range ............................................... 194
Cup holder ......................................................247
Current fuel consumption .......................... 80
Customizable features .............................. 367
D
Daytime running light system .................... 161
Defogger Outside rear view mirrors..................... 233
Rear window ................................................ 233
Windshield .................................................... 233
Differential ...................................................... 354
Dimension ......................................................350
Dinghy towing.................................................145
Display BSM (Blind Spot Monitor)................... 209
Drive information ......................................... 80
Dynamic radar cruise control with full-
speed range ............................................... 194
Head-up display............................................85
Intuitive parking assist ..............................204
LKA (Lane-Keeping Assist) .................. 189
Multi-information display .......................... 79
Warning message ..................................... 323
Distance ............................................................. 80
Do-it-yourself maintenance .................... 266
Door courtesy lights ................................... 244
Door lock Doors .................................................................. 96
Smart access system with push-button start ................................................................. 103
Wireless remote control ........................... 94
Door pockets ................................................ 246
Doors ................................................................... 96 Automatic door lock ing and unlocking
system..............................................................99
Door glasses .................................................. 122

396Alphabetical index
Door lock.......................................................... 96
Open door warning buzzer .......... 97, 99
Outside rear view mirrors ....................... 119
Drive info 1/Drive info 2 .............................. 80
Drive information ........................................... 80
Driver’s seat position memory .................. 112 Driving position memory...........................112
Memory recall function ..............................114
Power easy access system .......................112
Drive-start control ........................................ 137
Driving................................................................136 Break-in tips ................................................... 137
Correct driving posture .............................23
Driving mode select switch .................. 203
Procedures .....................................................136
Winter drive tips......................................... 223
Driving mode select switch ..................... 203
Driving position memory Power easy access system .......................112
Dynamic radar cruise control with full- speed range..................................................194Warning message.......................................201
E
ECB (Electronically Controlled Brake Sys- tem) ..................................................................218
Eco drive mode ............................................ 203
Eco Driving Indicator.....................................73
Eco Driving Indicator Light .........................73
EDR (Event data recorder) ............................7
Elapsed time ..................................................... 80
Electric Power Steering (EPS) Function ............................................................ 219
Warning light .................................................315
Electronically Controlled Brake System (ECB) ..............................................................218
Electronic key .................................................. 92 Battery-saving function ........................... 104
If the electronic key does not operate properly.......................................................330
Replacing the battery............................... 297
Emergency, in case of If a warning buzzer sounds.....................314
If a warning light turns on.........................314
If a warning message is displayed ..... 323
If the battery is discharged .................... 332
If the electronic key does not operate
properly ...................................................... 330
If the engine will not start........................328
If the fuel filler do or cannot be opened
......................................................................... 330
If the soft top roof cannot be closed 338
If the vehicle is trapped in rising water ..........................................................................307
If you have a flat tire .................................. 327
If you lose your keys .................................329
If you think something is wrong............312
If your vehicle becomes stuck ............. 347
If your vehicle has to be stopped in an emergency ................................................ 306
If your vehicle needs to be towed .... 309
If your vehicle overheats ........................345
Emergency flashers .................................... 306
Engine ACC.................................................................. 149
Compartment.............................................. 274
Engine switch ................................................ 146
Fuel pump shut off system...................... 313
Hood ................................................................ 272
How to start the engine ........................... 146
Identification number ................................ 351
If the engine will not start........................328
If your vehicle has to be stopped in an emergency ................................................ 306
Ignition switch (engine switch)............. 146
Overheating .................................................345
Engine coolant...............................................276 Capacity .........................................................352
Checking ....................................................... 276
Preparing and checking before winter.......................................................................... 223
Engine coolant temperature gauge ....... 75
Engine immobilizer system ........................ 63
Engine oil .........................................................274