engine coolant lexus LC500 2018 Owner's Guide

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7-2. Steps to take in an emergency
engine 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 operate in freezing tem-peratures.)
7 If the fan is not operating:
Stop the hybrid system immediately
and contact any authorized Lexus
retailer or Lexus authorized
repairer, or any reliable repairer.
If the fan is operating:
Have the vehicle inspected at the
nearest any authorized Lexus
retailer or Lexus authorized
repairer, or any reliable repairer.
If “Hybrid System Overheated
Reduced Output Power” 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.
3 After 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 any authorized Lexus retailer
or Lexus authorized repairer, or any reli-
able repairer.
4 The coolant level is satisfactory if it
is between the “F”/“FULL” and
“L”/“LOW” lines on the reservoir.
Reservoir
A
B
A

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7-2. Steps to take in an emergency
When trouble arises
“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 any authorized Lexus retailer or Lexus autho-rized repairer, or any reliable repairer.
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 any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.
■When adding engine coolant
Add coolant in accordance with the follow- ing procedure.
1 Remove the service cover.
2 Remove the engine cover.
3 Remove 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 cap
until it is full, and then replace the
cap .
B
C
AB
AC
A
B
B

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7-2. Steps to take in an emergency
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.
●After the hybrid system has been turned off, check that the “READY” indicator is 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 damage 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.

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8-1. Specifications
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact any auth orized Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
■Spark plug
■12-volt battery
Cooling system
Capacity*
LC50012.1 L (12.8 qt., 10.6 Imp.qt.)
LC500h
Gasoline engine
10.9 L (11.5 qt., 9.6 Imp.qt.)
Power control unit
2.3 L (2.4 qt., 2.0 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-
cate, 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
Gap0.8 mm (0.031 in.)0.8 mm (0.031 in.)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
Specific gravity reading at 20°C
(68°F):1.250 or higher

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Alphabetical index
Brake hold ........................................................189
Break-in tips .................................................... 155
Brightness control
Instrument panel light control................... 91
BSM (Blind Spot Monitor) ...................... 248
Blind Spot Monitor function................. 254
Rear Crossing Traffic Alert function 256
C
Care....................................................... 304, 307
Aluminum wheels ..................................... 305
Exterior............................................................304
Interior .............................................................307
Seat belts ........................................................307
Cargo hooks ..................................................295
Center Display .............................................. 274
Chains ................................................................ 271
Child restraint system ...................................48
Fixed with a seat belt................................... 54
Fixed with an ISOFIX rigid anchor ..... 57
Points to remember..................................... 48
Riding with children ..................................... 47
Types of child restraint system installation
method ...........................................................50
Using an anchor bracket (for top strap)
............................................................................60
Child safety ........................................................ 47
12-volt battery precautions ...... 325, 399
Airbag precautions ......................................40
Child restraint system................................. 48
Heated steering wheel and seat heater
precautions............................................... 288
How your child should wear the seat belt
............................................................................ 32
Installing child restraints ..............................51
Power window lock switch.....................152
Power window precautions .................... 151
Removed electronic key battery precau-
tions .............................................................. 350
Seat belt precautions .................................. 47
Trunk precautions......................................... 119
Cleaning .............................................. 304, 307
Aluminum wheels ..................................... 305
Exterior........................................................... 304
Interior .............................................................307
Radar sensor ................................... 208, 253
Seat belts ........................................................307
Clock................................................................. 297
Coat hooks .................................................... 298
Condenser......................................................323
Console box ...................................................294
Console box light .........................................294
Consumption screen ................................... 104
Coolant
Capacity .......................................................... 416
Checking........................................................ 322
Preparing and checking before winter
..........................................................................269
Cooling system .............................................322
Engine overheating......................400, 403
Hybrid system overheating ................. 404
Cornering lights............................................. 193
Cruise control
Cruise control..............................................239
Dynamic radar cruise control with full-
speed range .............................................. 229
Cup holder......................................................294
Current fuel consumption ...........................94
Curtain shield airbags ...................................35
Customizable features ..............................423
D
Daytime running light system.....................191
Defogger
Outside rear view mirrors...................... 281
Rear window ................................................. 281
Windshield ..................................................... 281
Differential ....................................................... 418
Dimension ........................................................410

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Alphabetical index
If you think something is wrong..........366
If your vehicle becomes stuck.............407
If your vehicle has to be stopped in an
emergency................................................ 360
If your vehicle needs to be towed ..... 362
If your vehicle overheats ...........400, 403
Emergency brake signal ...........................263
Emergency flashers.................................... 360
Energy monitor .............................................. 104
Engine
ACCESSORY mode .................... 165, 170
Compartment............................................... 318
Engine switch.................................................163
Fuel pump shut off system..................... 367
Hood ..................................................................316
How to start the engine ............................163
How to start the hybrid system.............167
Identification number .................................. 411
If the engine will not start ...................... 385
If the hybrid system will not start ....... 386
If your vehicle has to be stopped in an
emergency................................................ 360
Ignition switch (engine switch) .............163
Ignition switch (power switch) ..............167
Overheating ....................................400, 403
Power switch .................................................167
Engine coolant ..............................................322
Capacity ...........................................................416
Checking ....................................................... 324
Preparing and checking before winter
.........................................................................269
Engine coolant temperature gauge ....... 88
Engine immobilizer system .........................70
Engine oil .......................................................... 319
Capacity ...........................................................413
Checking .........................................................319
Oil level warning message .................... 381
Oil pressure warning light ................... 368
Preparing and checking before winter
.........................................................................269
Engine oil maintenance data .................... 321
Engine oil temperature gauge.................. 88
Engine switch (power switch) ........ 163, 167
Auto power off function.................166, 170
Changing the engine switch (power
switch) modes .................................165, 170
If your vehicle has to be stopped in an
emergency ................................................ 360
Starting the engine (hybrid system) 163,
167
EPS (Electric Power Steering) ...............262
Function .......................................................... 262
Warning light ...............................................370
ERA-GLONASS.........................................299
EV drive mode .................................................171
EV indicator.......................................................63
Exhaust gas precautions ..............................45
F
First-aid kit storage belt .............................295
Flat tire ............................................................. 384
Tire pressure warning system .............329
Floor mats...........................................................28
Fluid
Automatic transmission ............................417
Brake ................................................................. 418
Hybrid transmission....................................417
Washer............................................................ 324
Fog light............................................................. 196
Replacing light bulbs ............................... 356
Switch................................................................ 196
Wattage ..........................................................420
Follow me home system ............................. 192
Footwell light ................................................... 291
Front position lights
Replacing light bulbs ............................... 355
Switch.................................................................. 191
Welcome light illumination control.... 192
Front seats ........................................................138
Adjustment ..................................................... 138
Cleaning .........................................................307

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Alphabetical index
O
Odometer ......................................................... 88
Oil
Differential oil ................................................ 418
Engine oil .........................................................413
Opener
Fuel filler door............................................... 201
Hood ..................................................................316
Trunk ................................................................. 120
Outside door handle lights ....................... 291
Outside rear view mirrors ......................... 147
Adjustment...................................................... 147
BSM (Blind Spot Monitor) ...................248
Folding ............................................................. 148
Linked mirror function when reversing
.......................................................................... 148
Mirror position memory.......................... 140
Outside rear view mirror defoggers 281
Outside temperature display ............88, 90
Overheating...................................... 400, 403
P
Paddle shift switches...... 177, 178, 183, 184
Parking assist sensors ................................243
Parking brake ................................................. 187
Indicator.......................................................... 372
Operation ........................................................187
Parking brake engaged warning buzzer
.......................................................................... 188
Warning message...................................... 188
PCS (Pre-Collision System)..................... 210
Function ........................................................... 210
PCS OFF switch .......................................... 212
Warning light ...............................................370
Warning message..................................... 379
Personal lights ................................................ 291
Pollen removal mode ................................ 285
Pop-up display ................................................ 90
Pop Up Hood ...................................................43
Power control unit ..........................................65
Power control unit coolant.......................322
Capacity .......................................................... 416
Checking........................................................ 322
Preparing and checking before winter
..........................................................................269
Power outlet ................................................... 297
Power steering (Electric power steering
system) ..........................................................262
Warning light ...............................................370
Warning message .....................................379
Power switch (engine switch) ........ 163, 167
Auto power off function.................166, 170
Changing the power switch (engine
switch) modes .................................165, 170
If your vehicle has to be stopped in an
emergency ................................................ 360
Starting the hybrid system (engine) 163,
167
Power windows..............................................150
Door lock linked window operation ... 151
Jam protection function ............................. 151
Operation ....................................................... 150
Window lock switch.................................. 152
Pre-Collision System (PCS)..................... 210
Function ........................................................... 210
PCS OFF switch ..........................................212
Warning light ...............................................370
R
Radar cruise control (dynamic radar cruise
control with full-speed range) .............226
Radiator............................................................323
Rear turn signal lights ..................................186
Replacing light bulbs ............................... 355
Turn signal lever .......................................... 186
Rear view mirror
Inside rear view mirror ............................. 146
Outside rear view mirrors.......................147
Rear window defogger ............................... 281

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Alphabetical index
VGRS (Variable Gear Ratio Steering)262
VSC (Vehicle Stability Control) ............262
W
Warning buzzers
Approach warning.................................... 235
Brake system .............................................. 368
Downshifting ................. 178, 178, 184, 185
Lexus parking assist ................................. 243
LKA (Lane-Keeping Assist) .................. 218
Open door.............................................. 116, 118
Open hood ...................................................... 118
Open trunk ...................................................... 118
Open window ................................................ 151
Pre-collision braking ................................. 210
Seat belt reminder ..................................... 373
Warning label ...................................................65
Warning lights .............................................. 368
ABS...................................................................369
Brake hold operated indicator ........... 372
Brake Override System ......................... 372
Brake pad wear .......................................... 373
Brake system ...................................368, 373
Charging system....................................... 368
Electric power steering ..........................370
High coolant temperature .................... 375
LKA (Lane-Keeping Assist) ................... 371
Low engine oil pressure........................ 368
Low fuel level ............................................... 373
Malfunction indicator lamp ...................369
Master warning light ................................ 374
Parking brake indicator .......................... 372
Pre-collision system .................................370
Seat belt reminder light........................... 373
Slip indicator................................................... 371
SRS....................................................................369
Tire pressure ................................................ 374
Warning messages......................................378
Warning reflector storage belt ..............295
Washer .............................................................. 196
Checking........................................................ 324
Headlight cleaners ..................................... 196
Preparing and checking before winter
..........................................................................269
Switch................................................................ 196
Washing and waxing ................................. 304
Weight ............................................................... 410
Wheels..............................................................346
Replacing wheels ...................................... 339
Size ..................................................................... 419
Window lock switch..................................... 152
Windows...........................................................150
Power windows ........................................... 150
Rear window defogger............................ 281
Washer............................................................. 196
Windshield wiper de-icer ........................ 284
Windshield wipers ........................................ 196
Position............................................................. 198
Rain-sensing windshield wipers .......... 196
Winter driving tips .......................................269
Wireless remote control ..............................113
Battery-Saving Function...........................124
Locking/Unlocking...................................... 113
Replacing the battery...............................349
For information regarding the
equipment listed below, refer to
the “NAVIGATION SYSTEM
OWNER’S MANUAL”.
· Audio/video system
· Navigation system
· Lexus parking assist monitor
Toyota Motor Europe NV/SA, Ave-
nue du Bourget 60 - 1140 Brus-
sels, Belgium
www.toyota-europe.com