2020 TOYOTA HIGHLANDER HYBRID engine coolant

4997-2. Steps to take in an emergency
HIGHLANDER HV_U
7
When trouble arises
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL” line
“LOW” line
5 Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
6After stopping the hybrid sys-
tem and waiting for 5 minutes
or more, start the hybrid sys-
tem again and check if
“Hybrid System Overheated
Output Power Reduced” is
shown on the for the
multi-information display.
If the message does not disappear:
Stop the hybrid system and contact
your Toyota dealer.
If the message is not displayed:
The hybrid system temperature has
dropped and the vehicle may be
driven normally. However, if the m
essage appears
again frequently, contact your Toy-
ota dealer.
WA R N I N G
■When inspecting under the
hood of your vehicle
Observe the following precau-
tions.
Failure to do so may result in seri-
ous injury such as burns.
●If steam is seen coming from
under the hood, do not open the
hood until the steam has sub-
sided. The engine compart-
ment may be very hot.
●After the hybrid system has
been turned off , check that the
“READY” indicator is off.
When the hybrid system is oper-
ating, the gasoline engine may
automatically start, or the cool-
ing 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.

5098-1. Specifications
HIGHLANDER HV_U
8
Vehicle specifications
with SAE 0W-16 at the next oil
change.
Oil viscosity (0W-16 is explained
here as an example):
• The 0W in 0W-16 indicates the characteristic of the oil
which allows cold startability.
Oils with a lower value before
the W allow for easier starting
of the engine in cold weather.
• The 16 in 0W-16 indicates the viscosity characteristic of the
oil when the oil is at high tem-
perature. An oil with a higher
viscosity (one with a higher
value) may be better suited if the vehicle is operated at high
speeds, or under extreme
load conditions.
How to read oil container label:
API registered marks is added
to some oil containers to help
you select the oil you should
use.
Cooling system
Capacity
Gasoline
engine10.5 qt. (9.9 L , 8.7 Imp. qt.)
Power con-
trol unit2.0 qt. (1.9 L, 1.7 Imp. qt.)
Coolant type
Use either of the following:
 “Toyota Super Long Life Coolant”
 Similar high-quality et hylene glycol-based
non-silicate, non -amine, non-nitrite, and
non-borate coolant with long-life hybrid organic
acid technology
Do not use pla in water alone.
Ignition system (spark plug)
MakeDENSO FC16HR-Q8
Gap0.031 in. (0.8 mm)

5208-1. Specifications
HIGHLANDER HV_UGrade C corresponds to a level of
performance which all passenger
car tires must meet under the Fed-
eral Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher
levels of performance on the labo-
ratory test wheel
than the minimum
required by law. Warning: The temperature grades
of a tire assume tha
t it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can cause
heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire infl ation pressure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km
under that condition
Maximum inflation pressure
The maximum cold inf lated pressure to
which a tire may be inflated, shown on the
sidewall of the tire
Recommended inflation pres-
sureCold tire inflation pressure recommended
by a manufacturer
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
hybrid transmission, power steering,
power brakes, power windows, power
seats, radio and heater, to the extent that
these items are available as fac-
tory-installed equipment (whether installed
or not)
Curb weight
The weight of a motor vehicle with stan-
dard equipment, including the maximum
capacity of fuel, oil and coolant, and if so
equipped, air conditioning and additional
weight optional engine

558Alphabetical Index
HIGHLANDER HV_U
EDR (Event data recorder)......... 7
E-Four ...................................... 320
Elapsed time ..................... 96, 106
Electric motor (traction motor)71
Electric Power Steering (EPS) ............................................... 320Warning light ........................ 463
Electronic key ......................... 128 Battery-saving function......... 147
If the electronic key does not operate properly ................. 489
Replacing the battery ........... 438
Electronic roof sunshade Jam protection function ........ 186
Operation ............................. 185
Electronically Controlled Brake System (ECB) ....................... 319
Emergency flashers ............... 452
Emergency, in case of If a warning buzzer sounds .. 460
If a warning light turns on ..... 460
If a warning message is dis-played................................. 470
If the 12-volt battery is dis- charged .............................. 491
If the electronic key does not operate properly ................. 489
If the fuel filler door cannot be opened ............................... 488
If the hybrid sy stem will not start
........................................... 486
If the vehicle is trapped in rising water .................................. 453
If you have a flat tire ............. 474
If you lose your keys ............ 488
If you think something is wrong ........................................... 458
If your vehicle becomes stuck ........................................... 500
If your vehicle has to be stopped in an emergency................. 452 If your vehicle needs to be towed
...........................................455
If your vehicle ove rheats ......497
Energy monitor ....................... 117
Engine ACCESSORY mode . ............216
Compartment........................410
Engine switch .......................213
Hood .....................................408
How to start the hybrid system ...........................................213
Identification number ............506
If the hybrid sys tem will not start
...........................................486
If your vehicle has to be stopped in an emergency .................452
Ignition switch (power switch) ...........................................213
Overheating ..........................497
Power switch ........................213
Tachometer.............................89
Engine coolant Capacity ...............................509
Checking ..............................413
Preparing and checking before winter ..................................327
Engine coolant temperature gauge .......................................89
Engine oil Capacity ...............................508
Checking ..............................410
Preparing and checking before winter ..................................327
Warning light.........................461
Engine oil maintenance data .412
Engine switch (power switch)213 If your vehicle has to be stopped in an emergency .................452
EPS (Electric Po wer Steering)
...............................................320 Warning light.........................463
EV drive mode.........................218

563Alphabetical Index
HIGHLANDER HV_U
Warning message ................ 226
Parking lights Light switch .......................... 229
Replacing light bulbs ............ 443
Parking Support Brake function (for rear-crossing vehicles) . 312Function ............................... 312
Parking Support Brake function (static objects) ...................... 306Function ............................... 306
PCS (Pre-Collision System) Function ............................... 249
PCS OFF switch................... 251
Warning light ........................ 466
Personal lights ....................... 356
PKSB (Parking Support Brake) ............................................... 299Warning message ................ 304
Power control unit .................... 75
Power control unit coolant Capacity ............................... 509
Checking .............................. 413
Preparing and c hecking before
winter.................................. 327
Power outlets .................. 377, 378
Power steering (Electric power steering system)................... 320Warning light ........................ 463
Power switch .......................... 213 Auto power off function ........ 216
Changing the power switch modes ................................ 216
Power switch ( engine switch)
If your vehicle has to be stopped in an emergency................. 452
Power windows Door lock linked window opera-tion ..................................... 180
Jam protection function ........ 179
Operation ............................. 179
Window lock switch .............. 181 Pre-Collision System (PCS)
Function................................249
PCS OFF switch ...................251
Warning light.........................466
Predictive deceleration support .................................................74
Predictive SOC control ............74
R
Radar cruise control (dynamic radar cruise control with
full-speed range)...................270
Radiator ...................................414
RCTA Function................................294
Warning message.................295
RCTA function .........................296
Rear automatic air conditioning system ...................................348
Rear Cross Traffic Alert (RCTA) ...............................................294
Rear door sunshades .............383
Rear fog lights Switch ...................................235
Rear seats ...............................154 Head restraints .....................162
Seat heaters ....... ..................352
Rear side marker lights Light switch...........................229
Replacing light bulbs ............443
Rear turn signal lights Replacing light bulbs ............443
Turn signal lever ...................223
Rear view mirror Digital Rearview Mirror .........167
Inside rear view mirror ..........166
Outside rear view mirrors .....177
Rear window defogger ...338, 342
Refueling Capacity ...............................507
Fuel types .............................507

567Alphabetical Index
HIGHLANDER HV_U
Traction battery (hybrid battery) Hybrid battery (traction battery) air vents................................ 77
Location.................................. 75
Specification ......................... 508
Warning message .................. 78
Traction Control (TRAC) ........ 319
Traction motor (electric motor)71
Trail Mode ............................... 317
Trailer Sway Control .............. 319
Trailer towing .......................... 201
Transmission Driving mode select switch... 316
Hybrid transmission.............. 220
If the shift lever cannot be shifted from P................................. 221
S mode ................................. 222
Trip meters ................................ 91
Turn signal lights Replacing light bulbs ............ 443
Turn signal lever ................... 223
U
USB charging ports................ 368
V
Vanity lights ............................ 382
Vanity mirrors ......................... 382
VDIM (Vehicle Dynamics Inte-grated Management) ............ 320
Vehicle data recording ............... 6
Vehicle Dynamics Integrated Management (VDIM) ............. 320
Vehicle identifi cation number504
Vehicle information display ... 96, 106
Vehicle Stability Control (VSC) ............................................... 319
Ventilators (seat ventilators) . 352
VSC (Vehicle Stability Control) ............................................... 319
W
Warning buzzers ABS ......................................462
Airbags .................................462
Approach warning ................277
Brake hold ............................467
Brake Override System ........462
Brake system ........................460
Charging system ..................461
Downshifting .........................222
Drive-Start Control ................462
Electric power steering .........463
Engine ..................................461
Hands off steering wheel warn- ing (LTA) .............................265
High coolant temperature .....460
Hybrid system .......................461
Hybrid system overheat ........461
Intuitive parking assist .290, 293, 465
Low engine oil pressure .......461
LTA (Lane Tracing Assist) ...257, 260, 464
Open door ....................132, 134
PKSB (Parking Support Brake) ...........................................465
Pre-collision braking .............250
RCTA (Rear Cross Traffic Alert) ...........................................465
RCTA function.......................295
Seat belt .......................463, 464
Warning label ............................75
Warning lights .........................460 ABS ......................................462
Brake hold operated indicator...........................................467
Brake Override System ........462
Brake system ........................460
Charging system ..................461
Drive-Start Control ................462
Electric power steering .........463

568Alphabetical Index
HIGHLANDER HV_U
High coolant temperature ..... 460
Hybrid system overheat warning light..................................... 461
Intuitive parking assist OFF indi- cator ................................... 465
Low engine oil pressure ....... 461
Low fuel level ....................... 463
LTA indicator ......................... 464
Malfunction indicator lamp ... 461
Parking brake indicator ........ 467
PKSB OFF indicato r ............. 465
Pre-collision system ............. 466
RCTA OFF indicator ............. 465
Seat belt reminder light 463, 464
Slip indicator......................... 466
SRS ...................................... 462
Tire pressure ........................ 464
Warning message........... 101, 111
Warning messages................. 470
Washer Adding .................................. 415
Preparing and c hecking before
winter.................................. 327
Switch........................... 235, 238
Washing and waxing .............. 394
Weight Cargo capacity ..................... 200
Load limits ............................ 200
Weight .................................. 504
Wheels ..................................... 432 Size ...................................... 511
Window lock switch ............... 181
Windows Power windows .................... 179
Rear window defogger . 338, 342
Washer ......................... 235, 238
Windshield defo gger ...... 338, 341
Windshield wiper de-icer338, 346
Windshield wipers Rain-sensing windshield wipers................................... 235, 238
Winter driving tips .................. 327 Wireless charger.....................369
Wireless remote control
Battery-Saving Function .......147
Locking/Unlocking ................129
Replacing the battery ...........438
For infor mation regarding the equipment listed
below, refer to the “NAVI-
GATION AND MULTIME-
DIA SYSTEM OWNER’S
MANUAL”.
· Navigation system
· Audio/visual system
· Rear seat entertainment sys-
tem
· Rear view monitor system
· Toyota parking assist monitor
· Panoramic view monitor