2014 Lexus ES300h overheating

824
ES350_300h_OM_OM33A60U_(U)
7-2. Steps to take in an emergency
If your vehicle overheats (hybrid vehicles)
■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 sys-
tem, 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 following may indicate that your vehicle is overheating.
●The needle of the engine coolant temperature gauge ( →P. 9 5 )
enters the red zone or a loss of hybrid system power is experienced.
(For example, the vehicle speed does not increase.)
●“Hybrid System Overheat” ( →P. 780) is shown on the multi-informa-
tion display.
●Steam comes out from under the hood.
Correction procedures
1
2
3
1
2

900Alphabetical index
ES350_300h_OM_OM33A60U_(U)
CareAluminum wheels ............................. 659
Exterior................................................... 658
Interior .....................................................662
Seat belts ............................................... 663
Cargo capacity....................................... 198
Cargo hooks .......................................... 620
CD player
*...................................400, 512
Chains ....................................................... 332
Child restraint system Booster seats, definition .................... 57
Booster seats, installation.................. 67
Convertible seats, definition ............ 57
Convertible seats, installation .........64
Front passenger occupant
classification system ........................ 50
Infant seats, definition .......................... 57
Infant seats, installation .......................64
Installing CRS
with LATCH anchors ..................... 62
Installing CRS with seat belts .......... 64
Installing CRS with top tether strap .........................68 Child safety .................................................56
12-volt battery
precautions ............................695, 816
Airbag precautions................................ 41
Child restraint system......................... 57
How your child should wear
the seat belt .......................................... 34
Installing child restraints ...................... 61
Moon roof precautions ..................... 181
Power window lock switch............. 174
Power window precautions ........... 176
Rear door child-protectors ............ 143
Removed electronic key battery precautions .............. 720
Seat belt extender precautions ...........................................37
Seat belt precautions .......................... 60
Seat heater precautions ................. 629
Trunk precautions .............................. 150
Child-protectors .................................... 143
Cleaning Aluminum wheels ..............................659
Exterior .................................................. 658
Interior ..................................................... 662
Seat belts................................................ 663
Clock..........................................................623
Coat hooks ............................................. 635
Condenser................................................ 691
Console box............................................. 617
Console box light ................................... 617
Consumption screen ..............................117
Cooling system
Engine overheating ............................821
Hybrid system overheating .......... 824
Cruise control Cruise control ..................................... 248
Dynamic radar cruise control ..... 252
C

902Alphabetical index
ES350_300h_OM_OM33A60U_(U)
Emergency, in case ofIf a warning buzzer
sounds..................................................759
If a warning light turns on...............759
If a warning message is displayed ........................................769
If the 12-volt battery is discharged ................................813, 817
If the electronic key does not operate properly .........810
If the engine will not start............... 805
If the hybrid system will not start ............................................... 807
If the shift lever
cannot be shifted from P ........... 809
If you have a flat tire .......................... 792
If you think something is wrong............................................... 757
If your vehicle becomes stuck ..................................................... 828
If your vehicle has to be stopped in an emergency .......... 749
If your vehicle needs to be towed ........................................ 751
If your vehicle overheats ..... 821, 824
Emergency flashers ............................. 748
Energy monitor ........................................ 112 Engine
Accessory mode ............................... 202
Compartment ...................................... 681
Engine switch ........................... 201, 208
Hood........................................................ 677
How to start the engine....................201
How to start the hybrid system ..................................................208
Identification number .......................834
If the engine will not start .............. 805
Ignition switch (“POWER” switch)..................................................208
Ignition switch (“START STOP ENGINE” switch) ...........................201
Overheating.............................. 821, 824
“Power” switch. ...................................208
“START STOP ENGINE” switch .....................................................201
Engine compartment cover............. 683
Engine coolant Capacity .................................................839
Checking .............................................. 689
Preparing and checking before winter ....................................330
Engine coolant temperature gauge ........................................................ 95
Engine immobilizer system ................. 82
Engine oil Capacity ................................................. 837
Checking ...............................................684
Oil level warning message ............ 777
Oil pressure warning message........................... 770
Preparing and checking
before winter ....................................330

904Alphabetical index
ES350_300h_OM_OM33A60U_(U)
Hands-free system (for cellular phone)
*.............. 451, 576
Head restraints ........................................162
Headlights Discharge headlights
precautions........................................746
Light switch ...........................................228
Replacing light bulbs..............................735, 736, 745
Wattage ................................................. 846
Heaters
Air conditioning system
*.................................. 353, 365
Heated steering wheel ....................626
Seat heaters ......................................... 628
Outside rear view mirrors
*..........378
High-voltage components ...................76
Hill-start assist control ........................308
Hood ...........................................................677
Warning message ............................. 774
Hooks
Cargo hooks ....................................... 620
Coat hooks .......................................... 635
Grocery bag hooks......................... 620
Retaining hooks (floor mat) .............28
Horn ............................................................227
Hybrid battery (traction battery) ...................................76
Hybrid battery
(traction battery) air vents .................77 Hybrid system............................................ 72
Emergency shut off system .............. 77
Energy monitor/consumption screen ..................................................... 110
EV drive mode .....................................215
High voltage components ................76
Hybrid System Indicator ................... 98
Hybrid system precautions ..............76
Hybrid vehicle driving tips .............327
If the hybrid system will not start ...............................................807
Overheating......................................... 824
“Power” (ignition) switch ...............208
Starting the hybrid system.............208
Vehicle proximity notification system ......................................................73
Hybrid System Indicator ...................... 98
Hybrid transmission .............................. 221 If the shift lever cannot be shifted from P .................................. 809
H

907Alphabetical index
ES350_300h_OM_OM33A60U_(U)
MirrorsInside rear view mirror ..................... 168
Outside rear view mirror defoggers
*........................................378
Outside rear view mirrors ................ 171
Vanity mirrors ...................................... 622
Mobile Assistant
*................................. 351
Moon roof
Door lock linked moon roof operation ......................179
Jam protection function ....................179
Operation ................................................177
Warning message ............................. 775
MP3 disc
*...................................... 401, 521
Multi-information display ................... 100 Dynamic radar cruise control...... 252
Energy monitor ...................................... 112
Language .............................................. 862
Switching the display...........................101
Trip information ..................................... 101
Warning message .............................769
Navigation system
*
Noise from under vehicle ....................... 8 Odometer .................................................. 95
Oil
Engine oil ............................................... 837
Opener Hood........................................................ 677
Trunk .......................................................... 147
Ornament lights ...................................... 611
Outer foot lights Outer foot lights .................................... 611
Wattage .................................................846
Outside rear view mirrors
Adjusting and folding .......................... 171
Blind spot monitor .............................. 317
Linked mirror function when reversing.................................. 172
Mirror position memory ..................156
Outside rear view mirror defoggers
*........................ 378
Outside temperature display ............. 101
Overheating................................. 821, 824
N
O
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.