2013 TOYOTA HIGHLANDER HYBRID engine overheat

5
When trouble arises
605
5-2. Steps to take in an emergency
Have the vehicle inspected at your
nearest Toyota dealer as soon as
possible.
■ Overheating
The following symptoms may occur when your vehicle is overheating:
●Hybrid system output decreases.
● Steam comes from the engine area.
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
●If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injury such as burns.
● With a hybrid vehicle, there are times when the gasoline engine automati-
cally starts to run or the cooling fans suddenly start to operate. Do not
touch or approach the rotating parts of the belt or fans. Doing so may lead
to fingers, clothes or tools getting caught, resulting in an accidental injury.
● Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
■When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.

665
Alphabetical index
Engine
Compartment........................ 500
Engine switch ............... 183, 188
Hood ..................................... 496
How to start the
hybrid system ..................... 183
Identification number ............ 611
If the hybrid system will not start .............................. 592
Ignition switch ............... 183, 188
Overheating .......................... 602
Power switch ........................ 183
Engine compartment cover .... 501
Engine coolan t temperature
gauge ..................................... 200
Engine oil Capacity ............................... 615
Checking .............................. 502
Preparing and checking before winter ...................... 256
Engine switch .................. 183, 188
Engine/power control unit coolant
Capacity ............................... 617
Checking .............................. 505
Preparing and checking before winter ...................... 256
EPS ........................................... 239
EV-Drive Mode ......................... 192
Event data recorder .................. 28 Floor mat...................................466
Fluid
Brake .....................................509
Washer ..................................510
Fog lights
Replacing light bulbs .............548
Switch....................................224
Wattage .................................623
Front automatic air conditioning system..............288
Front fog lights
Replacing light bulbs .............548
Switch....................................224
Wattage .................................623
Front manual air conditioning system..............282
Front passenger occupant
classification system ............148
Front passenger's seat belt reminder light.........................570
Front seats Adjustment ..............................85
Front side marker lights
Replacing light bulbs .............548
Switch....................................218
Wattage .................................623
Front turn signal lights Replacing light bulbs .............548
Wattage .................................623
Fuel Capacity ................................613
Fuel gauge ............................200
Gas station information .........676
Information ............................624
Refueling ...............................120
Type ......................................613
Fuel door...................................120
Fuel filler door ..........................120
Fuses.........................................535F

668 Alphabetical index
Odometer .................................. 200
Off-road precautions ............... 246
OilEngine oil .............................. 502
Opener
Back door ................................72
Fuel filler door ....................... 120
Glass hatch .............................81
Hood...................................... 496
Outside rear view mirrors Adjusting and folding ............. 110
Outside temperature display .................................... 207
Overhead console .................... 445
Overheating, Hybr id system ... 602
Parking brake ........................... 198
Parking lights Replacing light bulbs ............. 548
Switch.................................... 218
Wattage ................................. 623
Personal/interior lights
Switch.................................... 440
Wattage ................................. 623
Power outlet ............................. 458
Power switch ............................ 183
Power windows ........................ 112 Radiator .................................... 508
Radio ......................................... 316
Rear automatic air
conditioning system ............. 300
Rear manual air
conditioning system ............. 297
Rear seat Adjustment .............................. 88
Folding down second
seatback ............................... 89
Folding down third
seatback ............................... 91
Removing the second center seat ............................ 92
Stowing the second center seat ............................ 92
Rear seat entertainment
system .................................... 409
Rear turn signal lights Replacing light bulbs ............. 548
Wattage................................. 623
Rear view mirror Compass ............................... 475
Rear view monitor system ...... 235
Rear window defogger ............ 304
Rear window wiper .................. 229
Replacing Fuses .................................... 535
Key battery ............................ 532
Light bulbs............................. 548
Tires ...................................... 579
Reporting safety defects for
U.S. owners ............................ 646
Reset the maintenance data ......................................... 486O
P
R

673
What to do if...
What to do if...
A tire puncturesP. 579If you have a flat tire
The hybrid system does not
startP. 592If the hybrid system will not start
P. 125Immobilizer system
P. 598If the 12-volt battery is discharged
The shift lever cannot be
moved outP. 594If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 602If your vehicle overheats
The key is lostP. 595If you lose your keys/wireless
remote control transmitter
The 12-volt battery runs outP. 598If the 12-volt battery is discharged
The doors cannot be lockedP. 6 7Side doors
P. 7 2Back door
The horn begins to soundP. 129Alarm
The vehicle is stuck in
mud or sandP. 606If the vehicle becomes stuck