Page 632 of 716
6328-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48F12U)
The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.Reservoir
“FULL”
“LOW”
Radiator cap
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fans operate and to check for
coolant leaks from th e radiator or hoses.
The fans operate when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking
the fan sound and air flow. If it is difficult to check these, turn the air con-
ditioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact your Toyota
dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Toyota dealer.
4
1
2
3
4
5
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Page 634 of 716

6348-2. Steps to take in an emergency
HIGHLANDER_HV_U (OM48F12U)
■Messages displays
The message illustrations used are intended as examples, and may differ
from the image that is actually displayed on the multi-information display.
WARNING
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● 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.
● After the hybrid system has been turned off, check that the “READY” indi-
cator are off.
When the hybrid system is operating, the gasoline engine may automati-
cally start, or the cooling fan may suddenly operate even if the gasoline
engine stops. Do not touch or approach rotating parts such as the fan,
which may lead to fingers or clothing (especially a tie, a scarf or a muffler)
getting caught, resulting in serious injury.
● Do not loosen the radiator cap and the coolant reservoir caps while the
hybrid system and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently.
Adding cool coolant to a hot hybrid system too quickly can cause damage to
the hybrid system.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
● Do not use any coolant additive.
Page 704 of 716

704Alphabetical index
HIGHLANDER_HV_U (OM48F12U)
Engine coolant ......................... 513Capacity ................................ 644
Checking ............................... 513
Preparing and checking before winter....................... 337
Engine coolant temperature gauge...................................... 103
Engine oil ................................. 510
Capacity ................................ 642
Checking ............................... 510
Oil pressure warning message ............................. 585
Preparing and checking before winter....................... 337
Enhanced VSC ......................... 328
Entune Audio ........................... 349 Audio input ............................ 353
AUX port/USB port................ 353
CD player .............................. 367
iPod....................................... 373
MP3/WMA disc ..................... 367
Optimal use........................... 364
Portable music player ........... 381
Radio .................................... 365
Steering wheel audio
switch ................................. 352
USB memory ........................ 377
Entune Audio Plus
*
Entune Premium Audio*
EPS (Electric Power Steering)...... 329 Function ................................ 329
Warning light ......................... 568
EV drive mode.......................... 231
Event data recorder (EDR) ........ 11 Flat tire ..................................... 597
Floor mats .................................. 28
Fluid
Brake .................................... 645
Hybrid transmission .............. 645
Washer ................................. 516
Fog lights ................................. 249 Replacing light bulbs ............ 545
Switch ................................... 249
Wattage ................................ 649
Front automatic air
conditioning system ............. 434
Front door courtesy lights Location ................................ 447
Wattage ................................ 649
Front fog lights ........................ 249 Replacing light bulbs ............ 545
Switch ................................... 249
Wattage ................................ 649
Front passenger occupant
classification system .............. 54
Front personal lights............... 448 Wattage ................................ 649
Front seats ............................... 154 Adjustment............................ 154
Cleaning ............................... 494
Correct driving posture ........... 30
Head restraints ..................... 167
Seat heaters ......................... 445
Seat position memory ........... 163
Seat ventilators ..................... 445
F
Page 709 of 716

709Alphabetical index
HIGHLANDER_HV_U (OM48F12U)
Noise from under vehicle............ 8
Odometer.................................. 103
OilEngine oil .............................. 642
Opener Back door.............................. 131
Fuel filler door ....................... 258
Glass hatch ........................... 142
Hood ..................................... 506
Outer foot lights....................... 447
Outside rear view mirrors ....... 175 Adjusting and folding ............ 175
BSM (Blind spot monitor) ...... 313
Mirror position memory ......... 163
Outside rear view mirror
defoggers ........................... 436
Outside temperature display .................................... 461
Overheating, Hybrid system ... 631 Panoramic moon roof ............. 185
Jam protection function ........ 187
Operation .............................. 185
Panoramic view monitor
*
Parking assist sensors (intuitive parking assist)
*
Parking brake........................... 240 Operation .............................. 240
Parking brake engaged
warning buzzer ................... 581
Parking brake engaged
warning light ....................... 568
Parking brake engaged warning message ............... 581
Parking lights........................... 241 Light switch ........................... 241
Replacing light bulbs ............ 545
Wattage ................................ 649
PCS (Pre-Collision System).......... 268
Pre-collision brake assist ...... 269
Pre-collision braking ............. 269
Pre-collision warning ............ 269
Warning light......................... 569
Personal lights......................... 448 Wattage ................................ 649
Power back door ..................... 130
Power control unit ..................... 85
Power control unit coolant ..... 513 Capacity................................ 644
Checking............................... 513
Preparing and checking before winter ...................... 337
N
O
P
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”