coolant lexus LC500h 2020 / LEXUS 2020 LC500,LC500H (OM11537U) Owner's Guide

3727-2. Steps to take in an emergency
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”/“FULL” and
“L”/“LOW” lines on the reservoir.
Reservoir
“F”/“FULL” line
“L”/“LOW” line
5 Add coolant if necessary.
Water can be used in an emergency if power control unit coolant is unavailable.
6
After stopping the hybrid system
and waiting for 5 minutes or more,
start the hybrid system again and
check if “Hybrid System Over-
heated Reduced Output Power” is
shown on 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.
1 Remove the service cover.
2 Remove the engine cover.
A
B
A
B
C

3737-2. Steps to take in an emergency
7
When trouble arises
3Remove the caps and .
4 Add coolant through the inlet of the cap
up to the “F” line , and then
replace the cap .
5 Add coolant through the inlet of the cap
until it is full, and then replace the
cap .
WARNING
■When inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious
injury such as burns.
●If steam is seen coming from under the
hood, do not open the hood until the
steam has subsided. The engine com-
partment may be very hot.
AB
BC
B
A
A
●After the hybrid system has been
turned off, check that the indicator on
the power switch and the “READY”
indicator are off.
When the hybrid system is operating,
the gasoline engine may automatically
start, or the cooling fan may suddenly
operate even if the gasoline engine
stops. Do not touch or approach rotat-
ing parts such as the fan, which may
lead to fingers or clothing (especially a
tie, a scarf or a muffler) getting caught,
resulting in serious injury.
●Do not loosen the coolant inlet cap or
coolant reservoir caps while the hybrid
system and radiator are hot.
High temperature steam or coolant
could spray out.
NOTICE
■When adding engine/power control
unit coolant
Add coolant slowly after the hybrid sys-
tem has cooled down sufficiently. Adding
cool coolant to a hot hybrid system too
quickly can cause dama ge to the hybrid
system.
■To prevent damage to the cooling sys-
tem
Observe the following precautions:
●Avoid contaminating the coolant with
foreign matter (such as sand or dust
etc.).
●Do not use any coolant additive.

3808-1. Specifications
higher value) may be better suited if
the vehicle is operated at high
speeds, or under extreme load con-
ditions.
How to read oil container label:
The International Lubricant Specifica-
tion Advisory Committee (ILSAC)
Certification Mark is added to some oil
containers to help you select the oil you should use.
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
■Spark plug
Cooling system
Capacity*
LC50012.8 qt. (12.1 L, 10.6 Imp.qt.)
LC500h
Gasoline engine
11.5 qt. (10.9L, 9.6 Imp.qt.)
Power control unit
2.4 qt. (2.3L, 2.0 Imp.qt.)
Coolant type
Use either of the following:
 “Toyota Super Long Life Coolant”
 Similar high-quality ethylene glycol-
based non-silicate, non-amine, non-
nitrite, and non-borate coolant with long-
life hybrid organic acid technology
Do not use plain water alone.
Ignition system
LC500LC500h
MakeDENSO FK20HBR-J8DENSO FK20HBR8
Gap0.031 in. (0.8 mm)0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

3918-1. Specifications
8
Vehicle specifications
Accessory weight
The combined weight (in excess of those standard items which may
be replaced) of automatic transmission , power
steering, power brakes, power wi ndows, power seats, radio and
heater, to the extent that these item s are available as factory-installed
equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard equipment, including the
maximum capacity of fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional engine
Maximum loaded
vehicle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 lb. (68 kg) times the number of occupants specified in the sec-
ond column of Table 1
* that follows
Occupant distribu-
tionDistribution of occupants in a vehicl e as specified in the third column
of Table 1
* below
Production options
weight
The combined weight of installed regular production options weigh-
ing over 5 lb. (2.3 kg) in excess of the standard items which they
replace, not previously considered in curb weight or accessory
weight, including heavy duty brakes , ride levelers, roof rack, heavy
duty 12-volt battery, and special trim
RimA metal support for a tire or a tire and tube assembly upon which the
tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designa-
tionThe industry manufacturer’s designation for a rim by style or code
Rim widthNominal distance between rim flanges
Vehicle capacity
weight (Total load
capacity)The rated cargo and luggage load plus 150 lb. (68 kg) times the
vehicle’s designated seating capacity
Tire related termMeaning

Alphabetical index427
If the hybrid system will not start ........356
If your vehicle has to be stopped in an
emergency ................................................330
Ignition switch (engine switch) ............ 148
Ignition switch (power switch) ............... 151
Overheating.................................... 368, 370
Power switch .................................................. 151
Engine coolant..............................................300 Capacity ........................................................ 380
Checking ...................................................... 300
Preparing and checking before winter......................................................................... 242
Engine coolant temperature gauge ....... 80
Engine immobilizer system ........................ 68
Engine oil ........................................................ 297 Capacity ......................................................... 378
Checking ....................................................... 297
Preparing and checking before winter......................................................................... 242
Warning light ............................................... 339
Warning message.......................................351
Engine oil maintenance data .................. 299
Engine oil temperature gauge .................. 80
Engine switch (power switch) ......... 148, 151 Auto power off function ..................151, 154
Changing the engine switch (power switch) modes.................................150, 154
If your vehicle has to be stopped in an
emergency ................................................330
Starting the engine (hybrid system).................................148, 151
EPS (Electric Power Steering) .............. 235 Function .......................................................... 235
Warning light ...............................................340
EV drive mode............................................... 155
Event data recorder (EDR) ........................... 8
EV indicator ........................................................ 61
F
First-aid kit storage belt ............................ 266
Flat tire ............................................................. 354 Tire pressure warning system ............. 307 Floor mats ...........................................................22
Fluid
Automatic transmission ........................... 381
Brake ................................................................382
Hybrid transmission................................... 381
Washer ...........................................................302
Footwell light ................................................. 262
Front passenger occupant classification system .............................................................. 38
Front seats ........................................................ 122 Adjustment ...................................................... 122
Cleaning .......................................................... 281
Correct driving posture ............................ 23
Driving position memory .........................124
Head restraints.............................................. 127
Jam protection function ............................123
Memory recall function............................ 125
Seat heaters ..................................................259
Seat position memory ...............................124
Seat ventilators ............................................259
Front side marker light ................................ 175 Light switch .....................................................175
Replacing light bulbs ................................328
Front turn signal lights .................................169 Replacing light bulbs ................................328
Turn signal lever .......................................... 169
Fuel ..................................................................... 184 Capacity ......................................................... 377
Fuel gauge ....................................................... 80
Fuel pump shut off system.................... 338
Information ................................................... 385
Refueling.......................................................... 184
Type .................................................................. 377
Warning light ...............................................343
Fuel consumption Average fuel consumpt ion after refueling
.............................................................................86
Average fuel economy ..............................86
Current fuel consumption ........................86
Fuel filler door ................................................ 184 If the fuel filler do or cannot be opened
......................................................................... 358

Alphabetical index431
Indicator ......................................................... 342
Operation........................................................170
Parking brake engaged warning buzzer........................................................................... 172
Warning message....................................... 172
Parking lights ................................................... 175 Light switch ..................................................... 175
Replacing light bulbs................................ 328
PCS (Pre-Collision System) .....................192 Function ............................................................ 192
PCS OFF switch ..........................................194
Warning light .................................................341
Warning message...................................... 198
Personal lights............................................... 262
Pop-up display ................................................. 82
Pop Up Hood................................................... 36
Power control unit.......................................... 63
Power control unit coolant ......................300 Capacity ........................................................ 380
Checking ...................................................... 300
Preparing and checking before winter......................................................................... 242
Power outlet .................................................. 268
Power steering (Elect ric power steering
system).......................................................... 235 Warning light ...............................................340
Warning message..................................... 349
Power switch (engine switch) ......... 148, 151 Auto power off function ..................151, 154
Changing the power switch (engine switch) modes.................................150, 154
If your vehicle has to be stopped in an
emergency ................................................330
Starting the hybrid system (engine) ................................................148, 151
Power windows ..............................................134 Door lock linked window operation..135
Jam protection function............................135
Operation........................................................ 134
Window lock switch ..................................135
Pre-Collision System (PCS) .....................192 Function ............................................................ 192 PCS OFF switch ......................................... 194
Warning light .................................................341
Warning message ...................................... 198
R
Radar cruise control (dynamic radar cruise
control with full-speed range)............. 206
Radiator ............................................................ 301
Rear side marker lights ............................... 175 Light switch .....................................................175
Replacing light bulbs ................................328
Rear turn signal lights ..................................169 Replacing light bulbs ................................328
Turn signal lever .......................................... 169
Rear view mirror Inside rear view mirror ............................. 130
Outside rear view mirrors........................ 131
Rear window defogger ............................. 253
Refueling .......................................................... 184 Capacity ......................................................... 377
Fuel types ....................................................... 377
If the fuel filler do or cannot be opened
......................................................................... 358
Opening the fuel tank cap ..................... 184
Regenerative braking ..................................... 61
Remote Touch .............................................. 246
Replacing Electronic key battery .............................. 322
Fuses................................................................. 323
Light bulbs .....................................................328
Tires ................................................................... 313
Resetting the message indicating mainte- nance is required ...................................... 287
Rev indicator ......................................................81
Rev peak............................................................. 82
Run-flat tires........................................307, 354
S
Seat belt reminder light............................. 343
Seat belts............................................................ 24 Automatic Locking Retractor................. 26

Alphabetical index435
Pre-collision braking.................................. 192
Seat belt reminder..................................... 343
Warning label .................................................. 63
Warning lights............................................... 339 ABS ..................................................................340
Brake hold operated indicator ........... 342
Brake Override System ......................... 342
Brake system ...................................339, 343
Charging system ....................................... 339
Electric power steering ..........................340
High coolant temperature .................... 344
LKA (Lane-Keeping Assist)................... 341
Low engine oil pressure......................... 339
Low fuel level ............................................... 343
Malfunction indicator lamp...................340
Master warning light ................................ 344
Parking brake indicator .......................... 342
Pre-collision system ................................... 341
Seat belt reminder light .......................... 343
Slip indicator ..................................................341
SRS....................................................................340
Tire pressure ................................................ 344
Warning messages ..................................... 348
Warning reflector storag e belt.............. 266
Washer ............................................................. 180 Checking ....................................................... 302
Preparing and checking before winter......................................................................... 242
Switch ............................................................... 180
Washing and waxing.................................. 278
Weight Cargo capacity.............................................146
Load limits .......................................................146
Weight ............................................................ 376
Wheels ...............................................................319 Replacing wheels.........................................313
Size....................................................................383
Window lock switch .....................................135
Windows ...........................................................134 Power windows............................................ 134
Rear window defogger .......................... 253
Washer ............................................................ 180 Windshield wiper de-icer ........................ 257
Windshield wipers ....................................... 180
Position............................................................. 182
Rain-sensing windshield wipers .......... 180
Winter driving tips....................................... 242
Wireless remote control ........................... 106 Battery-Saving Function............................ 117
Locking/Unlocking ................................... 106
Replacing the battery ............................... 322
For information regarding the equipment listed below, refer to
the “NAVIGATION SYSTEM
OWNER’S MANUAL”.
· Audio/video system
· Navigation system
· Lexus parking assist monitor
· Lexus Enform