2020 Lexus ES350 engine overheat

2695-3. Using the air conditioning system
5
Interior features
recalled.
■Seat heaters
Each time the switch is pressed, the
operation condition changes as fol-
lows.
AUTO (lit)  Hi (3 segments lit) 
Mid (2 segments lit)  Lo (1 segment
lit)  Off
The AUTO indicator and/or level
indicator illuminates during opera-
tion.
■Seat ventilators
Each time the switch is pressed, the
operation condition changes as fol-
lows.
AUTO (lit)  Hi (3 segments lit) 
Mid (2 segments lit)  Lo (1 segment
lit)  Off
The AUTO indicator and/or and level
indicator illuminates during operation.
■Operation condition
The engine switch is in IGNITION ON
mode.
■Air conditioning system-linked control
mode
When the seat ventilator fan speed level is
Hi (when AUTO is sele cted), the seat venti-
lator fan speed may become higher
according to the fan speed of the air condi-
tioning system.
■When AUTO mode is selected
The following functions may turn off
according to the air conditioning set tem-
perature, outside temperature, etc.
●Seat heaters
●Seat ventilators
■Stored settings
When the engine switch is turned to IGNI-
TION ON mode, the following stored set-
tings are recalled.
●Seat heaters
●Seat ventilators
Seat heaters and ventilators
A
B
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.
●Do not use seat heater more than nec-
essary.

345
7
7
When trouble arises
When trouble arises
7-1. Essential informationEmergency flashers.................. 346
If your vehicle has to be stopped in an emergency .......................... 346
If the vehicle is trapped in rising water............................................ 347
7-2. Steps to take in an emergency If your vehicle needs to be towed........................................................ 349
If you think something is wrong ........................................................ 352
Fuel pump shut off system ..... 353
If a warning light turns on or a warning buzzer sounds ....... 354
If a warning message is displayed ........................................................ 364
If you have a flat tire.................. 368
If the engine wi ll not start .......375
If you lose your keys ................. 377
If the fuel filler door cannot be opened........................................ 377
If the electronic key does not operate properly .................... 378
If the battery is discharged .... 380
If your vehicle overheats ........ 383
If the vehicle becomes stuck 385

3837-2. 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
WARNING
●When working with the battery, always
wear safety glasses and take care not
to allow any battery fluids (acid) to
come into contact with skin, clothing
or the vehicle body.
●Do not lean over the battery.
●In the event that battery fluid comes
into contact with the skin or eyes,
immediately wash the affected area
with water and seek medical attention.
Place a wet sponge or cloth over the
affected area until medical attention
can be received.
●Always wash your hands after handling
the battery support, terminals, and
other battery-related parts.
●Do not allow children near the battery.
■When replacing the battery
When the vent plug and indicator are
close to the hold down clamp, the battery
fluid (sulfuric acid) may leak.
NOTICE
■When handling jumper cables
When connecting the jumper cables,
ensure that they do not become entan-
gled in the cooling fan or engine drive
belt.
If your vehicle overheats
The following may indicate that
your vehicle is overheating.
 The engine coolant temperature
gauge ( P.70, 73) is in the red
zone or a loss of engine power is
experienced. (For example, the
vehicle speed does not increase.)
 “Engine Coolant Temp High Stop
in a Safe Place See Owner’s
Manual” is shown on the multi-
information display.
 Steam comes out from under the
hood.
Correction procedures

436Alphabetical index
C
Care ...................................................... 302, 305Aluminum wheels ...................................... 302
Exterior ........................................................... 302
Interior ............................................................ 305
Seat belts....................................................... 305
Cargo capacity................................................ 141
Cargo hooks ................................................. 278
Center Display ............................................. 254
Chains .............................................................. 250
Child-protectors............................................. 98
Child restraint system................................... 42 Fixed with a LATCH system .................. 49
Fixed with a seat belt................................... 46
Front passenger occupant classification system ..............................................................37
Points to remember .....................................42
Riding with children ......................................42
Types of child restraint system installation method ........................................................... 43
Using an anchor bracket ............................ 51
Child safety ....................................................... 42 Airbag precautions...................................... 33
Battery precautions ........... 321, 382, 382
Child restraint system................................. 43
Heated steering wheel and seat heater precautions................................................268
How your child should wear the seat belt ............................................................................ 25
Moon roof precautions ............................ 127
Panoramic moon roof precautions ..... 131
Power window lock switch.....................125
Power window precautions ...................125
Rear door child-protectors ..................... 98
Removed electronic key battery precau- tions ............................................................... 337
Seat belt extender precautions ............. 25
Seat belt precautions ...................................24
Trunk precautions ........................................ 99
Cleaning.............................................. 302, 305 Aluminum wheels ...................................... 302 Exterior............................................................302
Interior ............................................................ 305
Radar sensor .....................................169, 205
Seat belts ....................................................... 305
Clock ................................................ 70, 73, 279
Coat hooks..................................................... 290
Compass ......................................................... 297
Condenser .......................................................319
Console box ...................................................276
Console box light .........................................276
Cooling system.............................................. 318 Engine overheating.................................. 383
Cornering lights ............................................ 158 Replacing light bulbs ..................................341
Cruise control Dynamic radar cruise control with full-
speed range ............................................... 193
Cup holder ......................................................276
Current fuel consumption ...........................79
Curtain shield airbags .................................. 28
Customizable features .............................. 406
D
Daytime running light system ...................156
Defogger Outside rear view mirrors..................... 262
Rear window ................................................ 262
Windshield .................................................... 262
Dimension ......................................................388
Dinghy towing................................................. 142
Display BSM (Blind Spot Monitor)....................203
Dynamic radar cruise control with full-
speed range ............................................... 193
Head-up display............................................84
Intuitive parking assist ................................ 212
LTA (Lane Tracing Assist) ..................... 187
Multi-information display ...........................77
Parking Support Brake function (rear pedestrians)............................................... 242
RCD (Rear Camera Detection) ........ 223
RCTA.................................................................219

Alphabetical index437
Warning message..................................... 364
Distance until next engine oil change71, 76
Do-it-yourself maintenance ....................308
Door courtesy lights ....................................272
Door lock Doors .................................................................. 95
Smart access system with push-button start ................................................................. 106
Wireless remote control........................... 93
Doors ................................................................... 95 Automatic door lock ing and unlocking
system ............................................................. 98
Door glasses .................................................. 124
Door lock.......................................................... 95
Open door warning buzzer .......... 96, 98
Outside rear view mirrors ........................121
Rear door child-protectors ..................... 98
Drive distance ...................................................79
Drive info 1/Drive info 2 ...............................79
Driver’s seat position memory .................. 114 Driving position memory ...........................114
Memory recall function ............................. 115
Drive-start control ........................................135
Driving................................................................134 Break-in tips ...................................................135
Correct driving posture .............................23
Driving Mode Select switch .................209
Procedures ..................................................... 134
Winter drive tips......................................... 249
Driving information display .........................79
Driving Mode Select switch.................... 209
Driving range ....................................................79
Driving support system information display ............................................................................. 82
Dynamic radar cruise control with full- speed range..................................................193Warning message.......................................201
E
Eco drive mode ............................................ 209
Eco Driving Indicator.................... 80, 81, 87
Eco Driving Indicator Light ........................ 80 EDR (Event data recorder) ............................7
Elapsed time ......................................................79
Electric Power Steering (EPS)
Function ..........................................................245
Warning light .............................................. 356
Electronic key .................................................. 92 Battery-saving function............................ 107
If the electronic key does not operate properly .......................................................378
Replacing the battery ...............................336
Electronic roof sunshade Jam protection function ........................... 130
Operation ........................................................129
Emergency, in case of If a warning buzzer sounds...................354
If a warning light turns on.......................354
If a warning message is displayed .....364
If the battery is discharged ................... 380
If the electronic key does not operate properly .......................................................378
If the engine will not start........................375
If the fuel filler do or cannot be opened
.......................................................................... 377
If the vehicle is trapped in rising water .......................................................................... 347
If you have a flat tire ................................. 368
If you lose your keys ................................. 377
If you think something is wrong..........352
If your vehicle becomes stuck ............ 385
If your vehicle has to be stopped in an emergency .................................................346
If your vehicle needs to be towed .....349
If your vehicle overheats ....................... 383
Emergency flashers .................................... 346
Engine ................................................................143 ACCESSORY mode............................... 146
Compartment............................................... 316
Engine switch .................................................143
Fuel pump shut off system.....................353
Hood ..................................................................314
How to start the engine ............................143
Identification number .............................. 389

438Alphabetical index
If the engine will not start ....................... 375
If your vehicle has to be stopped in an
emergency ................................................ 346
Ignition switch (engine switch) ............. 143
Overheating.................................................383
Tachometer .............................................70, 73
Engine coolant............................................... 318 Capacity ...........................................................391
Checking ........................................................ 318
Preparing and checking before winter......................................................................... 249
Engine coolant temperature gauge 70, 73
Engine immobilizer system ........................ 60
Engine oil ..........................................................316 Capacity .........................................................390
Checking .........................................................316
Preparing and checking before winter......................................................................... 249
Warning light ...............................................355
Engine oil maintenance data ................... 318
Engine switch ........................................143, 143 Auto power off function ................ 146, 146
Changing the engine switch
modes ................................................. 146, 146
If your vehicle has to be stopped in an
emergency ....................................346, 346
Starting the engine ........................... 143, 143
Enhanced Vehicle Stability Control (Enhanced VSC) ...................................... 245
Enhanced VSC (Enhanced Vehicle Stabil- ity Control) .................................................. 245
EPS (Electric Power Steering) .............. 245 Function .......................................................... 245
Warning light ...............................................356
Event data recorder (EDR) ............................7
F
Flat tire ............................................................. 368 Tire pressure warning system ............. 325
Floor mats ...........................................................22
Fluid Automatic transmission ............................391 Brake ................................................................392
Washer .............................................................321
Footwell light ..................................................272
Front passenger occupant classification system ...............................................................37
Front seats ......................................................... 113 Adjustment ....................................................... 113
Cleaning ........................................................ 305
Correct driving posture ............................ 23
Driving position memory .......................... 114
Head restraints............................................... 117
Memory recall function.............................. 115
Power easy access system ...................... 114
Seat heaters ................................................. 268
Seat position memory ................................ 114
Seat ventilators ........................................... 268
Front side marker light ................................156 Light switch .................................................... 156
Front side marker lights Replacing light bulbs ......................341, 342
Front turn signal lights .................................. 151 Replacing light bulbs ......................341, 342
Turn signal lever ............................................ 151
Fuel ...................................................................... 167 Capacity ........................................................ 389
Fuel gauge ............................................... 70, 73
Fuel pump shut off system.....................353
Information ................................................... 395
Refueling...........................................................167
Type ................................................................. 389
Warning light ...............................................357
Fuel consumption Average fuel economy .............................. 79
Current fuel consumption ........................ 79
Fuel filler door ................................................. 167 If the fuel filler do or cannot be opened
.......................................................................... 377
Refueling...........................................................167
Fuel gauge ................................................. 70, 73
Fuel pump shut off system........................ 353
Fuses ................................................................. 338

Alphabetical index441
Meter control switches .............................. 78
Meters ........................................................70, 73
Multi-information display ........................... 77
Settings .............................................................. 82
Units ......................................................................81
Warning lights ............................................. 354
Warning message..................................... 364
Mirrors Inside rear view mirror..............................120
Outside rear view mirror defoggers 262
Outside rear view mirrors ........................121
Vanity mirrors.............................................. 279
Moon roof Door lock linked moon roof operation................................................................ 127, 130
Jam protection function................. 127, 130
Operation..............................................126, 129
Multi-information display ............................. 77 Audio system-linked display.....................81
Boost gauge....................................................80
Drive information 1/Drive information 2............................................................................ 79
Driving information display...................... 79
Driving support system information dis- play ................................................................... 82
Dynamic radar cruise control with full- speed range ................................................193
Eco Driving Indicator ................................. 87
Gear Position ...................................................81
G-force................................................................81
LTA (Lane Tracing Assist)......................187
Menu icons ...................................................... 78
Meter control switches .............................. 78
Navigation system-linked display ..........81
Pop-up display............................................... 82
Settings .............................................................. 82
Suggestion function..................................... 83
Tire pressure ................................................ 325
Units ......................................................................81
Warning message..................................... 364N
Navigation system-linked display..... 81, 84
Noise from under vehicle ...............................6
O
Odometer ................................................... 71, 76
Odometer and trip meter display “ODO TRIP” switch ............................. 71, 76
Display items ............................................ 71, 76
Pop-up display .......................................72, 76
“ODO TRIP”switch ................................. 71, 76
Oil Engine oil....................................................... 390
Opener Fuel filler door ................................................167
Hood ..................................................................314
Trunk ................................................................... 101
Outside door handle lig hts.......................272
Outside rear view mirrors .......................... 121 Adjustment ....................................................... 121
BSM (Blind Spot Monitor)....................203
Folding............................................................... 122
Linked mirror functi on when reversing
............................................................................123
Mirror position memory ............................ 114
Outside rear view mirror defoggers 262
RCTA function ..............................................219
Outside temperature............................ 70, 73
Overheating .................................................. 383
P
Paddle shift switches ......................... 150, 150
Panic mode ....................................................... 93
Panoramic moon roof Jam protection function ........................... 130
Operation ........................................................129
Parking assist sensors (intuitive parking assist) ............................................................... 212
Parking brake..................................................152 Operation ....................................................... 152