2015 Lexus ES300h overheating

691
ES350_300h_OM_OM33B99U_(U)
8-2. Steps to take in an emergency
8
When trouble arises
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 an d 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.
The following may indicate that your vehicle is overheating.
●The needle of the engine coolant temperature gauge ( P. 97) 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. 647) is shown on the multi-informa-
tion display.
●Steam comes out from under the hood.
Correction procedures
1
2

768Alphabetical index
ES350_300h_OM_OM33B99U_(U)
CareAluminum wheels ..............................523
Exterior.................................................... 522
Interior .....................................................526
Seat belts ................................................ 527
Cargo capacity...................................... 202
Cargo hooks ..........................................488
CD player
*............................................. 387
Chains ....................................................... 343
Child restraint system Booster seats, definition ................... 58
Booster seats, installation..................68
Convertible seats, definition ........... 58
Convertible seats, installation .........65
Front passenger occupant classification system ........................ 50
Infant seats, definition ......................... 58
Infant seats, installation .......................65
Installing CRS with LATCH anchors ..................... 63
Installing CRS with seat belts ..........65
Installing CRS with top tether strap .........................69 Child safety ................................................. 57
12-volt battery precautions .......................... 559, 683
Airbag precautions................................ 41
Child restraint system......................... 58
How your child should wear the seat belt .......................................... 34
Installing child restraints .................... 62
Moon roof precautions ................... 185
Power window lock switch............. 177
Power window precautions .......... 180
Rear door child-protectors ............145
Removed electronic key battery precautions ............. 585
Seat belt extender precautions ...........................................37
Seat belt precautions ............................ 61
Seat heater precautions ..................477
Trunk precautions ............................... 152
Child-protectors .................................... 145
Cleaning Aluminum wheels .............................. 523
Exterior ................................................... 522
Interior ..................................................... 526
Seat belts................................................ 527
Clock........................................................... 491
Coat hooks ............................................. 499
Condenser.............................................. 555
Console box ........................................... 485
Console box light ................................. 485
Consumption screen ............................. 118
Cooling system Engine overheating ......................... 688
Hybrid system overheating ............691
Cruise control Cruise control ..................................... 254
Dynamic radar cruise control .....258
C

770Alphabetical index
ES350_300h_OM_OM33B99U_(U)
Emergency, in case ofIf a warning buzzer sounds..................................................626
If a warning light turns on...............626
If a warning message is displayed ....................................... 636
If the 12-volt battery is discharged ........................... 680, 684
If the electronic key does not operate properly ........ 677
If the engine will not start................ 672
If the hybrid system will not start ................................................ 674
If the shift lever cannot be shifted from P ............676
If you have a flat tire ......................... 659
If you think something is wrong...............................................624
If your vehicle becomes stuck ......................................................697
If your vehicle has to be stopped in an emergency ........... 615
If your vehicle needs to be towed .........................................617
If your vehicle overheats .... 688, 691
Emergency flashers ...............................614
Energy monitor ........................................ 114 Engine
Accessory mode ............................... 206
Compartment .....................................545
Engine switch ............................205, 212
Hood..........................................................541
How to start the engine..................205
How to start the hybrid system .................................................... 212
Identification number....................... 702
If the engine will not start ............... 672
Ignition switch (“POWER” switch).................................................... 212
Ignition switch (“START STOP ENGINE” switch) .........................205
Overheating..............................688, 691
“POWER” switch. ............................... 212
“START STOP ENGINE” switch ...................................................205
Engine compartment cover..............547
Engine coolant Capacity................................................. 707
Checking ...............................................553
Preparing and checking before winter ...................................... 341
Engine coolant temperature gauge ......................................................... 97
Engine immobilizer system ................. 84
Engine oil Capacity................................................. 705
Checking ...............................................548
Oil level warning message ........... 644
Oil pressure warning message........................... 637
Preparing and checking before winter ...................................... 341

772Alphabetical index
ES350_300h_OM_OM33B99U_(U)
Hands-free system (for cellular phone)
*..........................419
Head restraints ........................................165
Headlights Discharge headlights precautions ........................................... 611
Light switch ........................................... 233
Replacing light bulbs............................... 600, 601, 610
Wattage ....................................................714
Heaters Air conditioning system ..................................................464
Heated steering wheel ....................478
Seat heaters ..........................................478
Outside rear view mirrors .............470
High-voltage components ................... 77
Hill-start assist control ..........................319
Hood ............................................................541 Warning message .............................. 641
Hooks Cargo hooks ....................................... 488
Coat hooks .......................................... 499
Grocery bag hooks......................... 488
Retaining hooks (floor mat) ............. 28
Horn ........................................................... 232
Hybrid battery (traction battery) ................................... 77
Hybrid battery (traction battery) air vents ................ 78 Hybrid system............................................ 73
Emergency shut off system ............. 78
Energy monitor/consumption screen ......................................................112
EV drive mode ..................................... 219
High voltage components ................ 77
Hybrid System Indicator ................. 100
Hybrid system precautions .............. 77
Hybrid vehicle driving tips ............338
If the hybrid system will not start ............................................... 674
Overheating...........................................691
“Power” (ignition) switch ................. 212
Starting the hybrid system............... 212
Vehicle proximity notification system ......................................................74
Hybrid System Indicator .................... 100
Hybrid transmission .............................226 If the shift lever cannot be shifted from P ................................... 676
H

775Alphabetical index
ES350_300h_OM_OM33B99U_(U)
MirrorsInside rear view mirror ....................... 171
Outside rear view mirror defoggers ...........................................470
Outside rear view mirrors ...............174
Vanity mirrors ..................................... 490
Mobile Assistant
*................................ 459
Moon roof Door lock linked moon roof operation ..................... 183
Jam protection function ................... 183
Operation ................................................. 181
Warning message .............................642
MP3 disc
*............................................... 387
Multi-information display ................... 102 Dynamic radar cruise control..... 258
Energy monitor ...................................... 114
Language ...............................................730
Switching the display......................... 103
Trip information ................................... 103
Warning message ............................ 636
Navigation system
*
Noise from under vehicle ....................... 8 Odometer ................................................... 97
Oil
Engine oil ............................................... 705
Opener Hood..........................................................541
Trunk ..........................................................149
Ornament lights ....................................479
Outer foot lights Outer foot lights ................................. 479
Wattage ................................................... 714
Outside rear view mirrors Adjusting and folding ........................ 174
Blind spot monitor ............................ 328
Linked mirror function when reversing.................................. 175
Mirror position memory ..................159
Outside rear view mirror defoggers............................ 470
Outside temperature display ............103
Overheating................................. 688, 691
N
O
*: For vehicles with a navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.