2017 Lexus ES300h heating

398
ES300h_OM_OM33C75U_(U)6-1. Using the air conditio
ning system and defogger
Heated steering wheel∗/seat heaters∗/
seat ventilators
∗
∗
: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat ventilators maintain good airflow by blow-
ing air from the seats.
WA R N I N G
●Care should be taken to prevent injury if anyone in the following categories comes in
contact with the steering wheel and seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically challenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold remedies, etc.)
●Observe the following precautions to prevent minor burns or overheating:
• Do not cover the seat with a blanket or cushion when using the seat heater.
• Do not use the seat heater more than necessary.
NOTICE
●Do not put heavy objects that have an uneven surface on the seat and do not stick
sharp objects (needles, nails, etc.) into the seat.
●To prevent 12-volt battery discharge, do not use the functions when the hybrid system
is off.

533
ES300h_OM_OM33C75U_(U)8-2. Steps to take in an emergency
8
When trouble arises
If your vehicle overheats
■If the needle of the engine coolant temperature gauge enters the red zone
Stop the vehicle in a safe place and turn off the air conditioning system, and
then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently, inspect
the hoses and cooling system for
leaks. Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.Reservoir
“FULL”
“LOW”
Radiator cap
The following may indicate that your vehicle is overheating.
●The needle of the engine coolant temperature gauge ( →P. 8 6 ) e n t e r s t h e
red zone or a loss of hybrid system power is experienced. (For example, the
vehicle speed does not increase.)
●“Hybrid System Overheated” is shown on the multi-information display.
●Steam comes out from under the hood.
Correction procedures
1
2
3
1
2
4
1
2
3
4

592Alphabetical index
ES300h_OM_OM33C75U_(U)
CareAluminum wheels ..............................435
Exterior....................................................434
Interior ..................................................... 437
Seat belts ............................................... 438
Cargo capacity........................................165
Cargo hooks .......................................... 407
CD player
*............................................. 322
Chains ....................................................... 285
Child restraint system Booster seats, definition ....................53
Booster seats, installation.................. 62
Convertible seats, definition ............53
Convertible seats, installation .........60
Front passenger occupant
classification system .........................46
Infant seats, definition ..........................53
Infant seats, installation .......................60
Installing CRS
with LATCH anchors .................... 58
Installing CRS with seat belts ..........60
Installing CRS with top tether strap .........................63
Child safety ................................................ 52 12-volt battery precautions ...........532
Airbag precautions .............................. 39
Child restraint system .........................53
How your child should wear the seat belt .......................................... 33
Installing child restraints..................... 57
Moon roof precautions...................... 151 Power window lock switch.............145
Power window precautions ........... 147
Rear door child-protectors ............... 111
Removed electronic
key battery precautions .............. 482
Seat belt extender
precautions .......................................... 35
Seat belt precautions .......................... 56
Seat heater precautions .................398
Trunk precautions ................................. 117
Child-protectors ....................................... 111
Cleaning Aluminum wheels .............................. 435
Exterior ................................................... 434
Interior ..................................................... 437
Seat belts................................................438
Clock...........................................................410
Coat hooks ............................................... 414
Condenser.............................................. 458
Console box........................................... 404
Console box light ................................. 404
Consumption screen ..............................99
Cooling system Hybrid system overheating .......... 533
Cruise control Cruise control ..................................... 238
Dynamic radar cruise control ..... 226
Cup holders............................................ 405
Curtain shield airbags ............................ 37
Customizable features ...................... 562
C

594Alphabetical index
ES300h_OM_OM33C75U_(U)
Emergency, in case ofIf a warning buzzer
sounds................................................. 505
If a warning light turns on.............. 505
If a warning message is displayed ........................................... 511
If the 12-volt battery is discharged .........................................529
If the electronic key does not operate properly ........ 527
If the hybrid system will not start ............................................... 525
If you have a flat tire ........................... 515
If you think something is wrong.............................................. 504
If your vehicle becomes
stuck ...................................................... 537
If your vehicle has to be
stopped in an emergency ......... 499
If your vehicle needs
to be towed ......................................500
If your vehicle overheats ............... 533
Emergency flashers ............................. 498
Energy monitor .........................................97 Engine
Accessory mode .................................169
Compartment .......................................451
Hood........................................................ 449
How to start the hybrid system ................................................... 168
Identification number ....................... 542
Ignition switch (power switch) ..... 168
Overheating.........................................533
Power switch. ....................................... 168
Engine compartment cover..............452
Engine coolant Capacity .................................................545
Checking ............................................... 457
Preparing and checking before winter .................................... 284
Engine coolant temperature gauge ........................................................ 86
Engine oil Capacity ................................................. 543
Checking ............................................... 453
Preparing and checking
before winter .................................... 284

596Alphabetical index
ES300h_OM_OM33C75U_(U)
Hands-free system (for cellular phone)
*........................ 349
Head restraints ....................................... 135
Headlights Adaptive Front-lighting System
(AFS) ..................................................... 183
Light switch ............................................ 182
Replacing light bulbs.........................................488, 495
Wattage ................................................. 548
Heaters
Air conditioning system ................................................. 388
Heated steering wheel ................... 399
Seat heaters ......................................... 399
Outside rear view mirrors .............392
High-voltage components .................... 71
Hill-start assist control ........................ 276
Hood .......................................................... 449
Hooks Cargo hooks ........................................407
Coat hooks ............................................ 414
Grocery bag hooks..........................407
Retaining hooks (floor mat) .............28
Horn .............................................................139
Hybrid battery (traction battery) .................................... 71
Hybrid battery (traction battery) air vents .................72 Hybrid system............................................ 67
Emergency shut off system .............. 72
Energy monitor/consumption screen ..................................................... 96
EV drive mode ..................................... 173
High voltage components ................. 71
Hybrid System Indicator ...................88
Hybrid system precautions ............... 71
Hybrid vehicle driving tips ............ 282
If the hybrid system will not start ............................................... 525
Overheating.........................................533
“Power” (ignition) switch ................ 168
Starting the hybrid system.............. 168
Vehicle proximity notification system ..................................................... 68
Hybrid System Indicator ...................... 88
Hybrid transmission .............................. 175 If the shift lever cannot be shifted from P .....................................178
H

599Alphabetical index
ES300h_OM_OM33C75U_(U)
MirrorsInside rear view mirror ..................... 140
Outside rear view mirror defoggers ...........................................392
Outside rear view mirrors ...............142
Vanity mirrors ..................................... 409
Moon roof Door lock linked
moon roof operation ..................... 149
Jam protection function ................... 149
Operation ............................................... 148
MP3 disc
*............................................... 322
Multi-information display ....................... 91 Drive information .................................. 92
Dynamic radar cruise control...... 226
Energy monitor ...................................... 97
Language .............................................. 564
Switching the display........................... 92
Trip information ..................................... 87
Warning message ................................ 511
Navigation system
*
Noise from under vehicle ....................... 8 Odometer .................................................. 86
Oil
Engine oil ............................................... 543
Opener Hood........................................................ 449
Trunk ............................................................114
Ornament lights ................................... 400
Outer foot lights Outer foot lights ................................ 400
Replacing light bulbs ....................... 495
Wattage .................................................548
Outside rear view mirrors Adjusting and folding ........................ 142
Blind spot monitor ............................ 268
Linked mirror function
when reversing.................................. 143
Mirror position memory ................. 130
Outside rear view mirror defoggers............................ 392
Outside temperature display ............. 86
Overheating........................................... 533
N
O
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.