2021 TOYOTA HIGHLANDER HYBRID oil temperature

852-1. Instrument cluster
2
Vehicle status information and indicators
HIGHLANDER HV_U
7-inch display
The units used on the meters and some indicators may differ
depending on the target region.
Warning lights inform the driver
of malfunctions in the indicated
vehicle’s systems.
Warning lights
(U.S.A.)
Brake system warning
light
*1 (  P.466)
(red)
(Canada)
Brake system warning
light
*1 (  P.466)
(yellow)
Brake system warning
light
*1 ( P.466)
High coolant temperature
warning light
*2 (  P.466)
Hybrid system overheat
warning light
*2 (  P.467)
Charging system warning
light
*2 (  P.467)
Low engine oil pressure
warning light
*2 (  P.467)
(U.S.A.)
Malfunction indicator
lamp
*1 ( P.467)
(Canada)
Malfunction indicator
lamp
*1 ( P.467)
SRS warning light
*1
(  P.468)
(U.S.A.)
ABS warning light*1
(  P.468)
(Canada)
ABS warning light*1
(  P.468)
Brake Overri de System
warning light/Drive-Start
Control warning light
*2
(  P.468)
(red/yel-
low)
Electric power steering
system warning light
( P.469)
Low fuel leve l warning
light
*1(  P.469)

4136-3. Do-it-yourself maintenance
6
Maintenance and care
HIGHLANDER HV_U
Hybrid battery
(traction bat-
tery) air intake
vent (P.441)• Vacuum cleaner,
etc.
• Phillips screw- driver
Headlight aim
( P.448)• Phillips-head
screwdriver
Light bulbs
( P.449)
• Bulb with same
number and
wattage rating as
original
• Phillips-head screwdriver
• Flathead screw- driver
• Wrench
Radiator and
condenser
(  P.419)

Tire inflation
pressure
( P.436)• Tire pressure
gauge
• Compressed air source
Washer fluid
( P.420)
• Water or washer
fluid containing
antifreeze (for
winter use)
• Funnel (used only for adding
water or washer
fluid)
WARNING
The engine compartment contains
many mechanisms and fluids that
may move suddenly, become hot,
or become electrically energized.
To avoid death or serious injury,
observe the following precautions.
ItemsParts and tools■When working on the engine
compartment
●Make sure that the “ACCES-
SORY” or “IGNITION ON” on
the multi-information display
and the “READY” indicator are
both off.
●Be careful not to touch the
engine, power control unit, radi-
ator, exhaust manifold, etc. right
after driving as they may be hot.
Oil and other fluids may also be
hot.
●Do not leave anything that may
burn easily, such as paper and
rags, in the engine compart-
ment.
●Do not smoke, cause sparks or
expose an open flame to fuel.
Fuel fumes are flammable.
■When working near the elec-
tric cooling fan or radiator
grille
Be sure the power switch is off.
With the power switch in ON, the
electric cooling fa n may automati-
cally start to run if the air condi-
tioning is on and/or the coolant
temperature is high. ( P.419)
■Safety glasses
Wear safety glasses to prevent
flying or falling material, fluid
spray, etc. from getting in your
eyes.
NOTICE
■If you remove the air cleaner
filter
Driving with the air cleaner filter
removed may cause excessive
engine wear due to dirt in the air.

4166-3. Do-it-yourself maintenance
HIGHLANDER HV_U
Engine coolant reservoir ( P.418)
Fuse boxes ( P.446)
Engine oil filler cap ( P.417)
Engine oil level dipstick ( P.417)
Brake fluid reservoir ( P.420)
Washer fluid tank ( P.420)
Electric cooling fan
Condenser ( P.419)
Radiator ( P.419)
Power control unit coolant reservoir ( P.419)
■12-volt battery
 P. 4 2 1
With the engine at operating
temperature and turned off,
check the oil level on the dip-
Engine compar tment
Components
Checking and adding the
engine oil

5138-1. Specifications
8
Vehicle specifications
HIGHLANDER HV_U
Outside temperature
SAE 0W-16 is the best choice
for good fuel economy and good
starting in cold weather.
If SAE 0W-16 is not available,
SAE 0W-20 oil may be used.
However, it must be replaced
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 mark 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.

5248-1. 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

562Alphabetical Index
HIGHLANDER HV_UEDR (Event data recorder)......... 7
E-Four ...................................... 326
Elapsed time ..................... 96, 106
Electric motor (traction motor)71
Electric Power Steering (EPS)
............................................... 326Warning light ........................ 469
Electronic key ......................... 128 Battery-saving function......... 147
If the electronic key does not operate properly ................. 496
Replacing the battery ........... 444
Electronic roof sunshade Jam protection function ........ 186
Operation ............................. 185
Electronically Controlled Brake System (ECB) ....................... 325
Emergency flashers ............... 458
Emergency, in case of If a warning buzzer sounds .. 466
If a warning light turns on ..... 466
If a warning message is dis-played................................. 476
If the 12-volt battery is dis- charged .............................. 498
If the electronic key does not operate properly ................. 496
If the fuel filler door cannot be opened ............................... 495
If the hybrid sy stem will not start
........................................... 493
If the vehicle is trapped in rising water .................................. 459
If you have a flat tire ............. 481
If you lose your keys ............ 495
If you think something is wrong ........................................... 464
If your vehicle becomes stuck ........................................... 507
If your vehicle has to be stopped in an emergency................. 458 If your vehicle needs to be towed
...........................................461
If your vehicle ove rheats ......504
Energy monitor ....................... 117
Engine ACCESSORY mode . ............216
Compartment........................416
Engine switch .......................213
Hood .....................................414
How to start the hybrid system ...........................................213
Identification number ............ 511
If the hybrid sys tem will not start
...........................................493
If your vehicle has to be stopped in an emergency .................458
Ignition switch (power switch) ...........................................213
Overheating ..........................504
Power switch ........................213
Tachometer.............................89
Engine coolant Capacity ...............................513
Checking ..............................418
Preparing and checking before winter ..................................333
Engine coolant temperature gauge .......................................89
Engine oil Capacity ...............................512
Checking ..............................416
Preparing and checking before winter ..................................333
Warning light.........................467
Engine switch (power switch)213 If your vehicle has to be stopped in an emergency .................458
EPS (Electric Po wer Steering)
...............................................326 Warning light.........................469
EV drive mode.........................218
EV indicator...............................72

566Alphabetical Index
HIGHLANDER HV_UOutside rear view mirrors ..... 177
Vanity mirrors ....................... 388
Moon roof Door lock linked moon roof oper-ation ................................... 182
Jam protection function ........ 182
Operation ............................. 182
Multi-information display. 92, 101 Audio system-linked display . 96, 106
AWD Control .................. 97, 106
Driving information display ... 93, 102
Driving support system......... 106
Driving support system informa- tion display ................... 96, 105
Dynamic radar cruise control with full-speed range .......... 271
ECO Accelerator Guidance .. 94, 103
Eco score ....................... 94, 103
Energy monitor ....... 97, 106, 117
Fuel economy................. 94, 102
LTA (Lane Tracing Assist) ..... 266
Menu icons ..................... 92, 101
Meter control switches ... 93, 102
Navigation system-linked display ..................................... 96, 105
Pop-up display ............... 92, 101
Settings .......................... 97, 107
Suggestion function...... 101, 110
Tire pressure .......... 97, 106, 426
Vehicle information display... 96, 106
Warning message 101, 110, 476
N
Navigation system-linked display ................................. 96, 105, 115
Noise from under vehicle .......... 5
Normal mode .......................... 322
O
“ODO TRIP” switch ..................91
Odometer...................................91
Odometer and trip meter display Display items ..........................91
“ODO TRIP” switch .................91
Oil Engine oil..............................512
Rear differential oil................514
Opener Back door .............................137
Fuel filler door.......................240
Hood .....................................414
Outer foot lights Replacing light bulbs ............449
Outside rear view mirrors Adjustment ...........................177
BSM (Blind Sport Monitor) ....286
Linked mirror function when reversing.............................177
Mirror position me mory.........159
Outside rear view mirror defog- gers ............................344, 348
RCTA function.......................300
Outside temperature ................89
Overheating.............................504
P
Panic mode .............................130
Panoramic moon roof Jam protection function ........186
Operation..............................185
Parking assist sens ors (intuitive
parking assist) ......................292
Parking brake Operation..............................224
Parking brake engaged warning buzzer.................................226
Warning light.........................473
Warning message.................226

571Alphabetical Index
HIGHLANDER HV_UTraction Control (TRAC) ........ 325
Traction motor (electric motor)71
Trail Mode ............................... 323
Trailer Sway Control .............. 325
Trailer towing .......................... 201
Transmission
Driving mode select switch... 322
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 ............ 449
Turn signal lever ................... 223
U
USB charging ports................ 374
V
Vanity lights ............................ 388
Vanity mirrors ......................... 388
VDIM (Vehicle Dynamics Inte-grated Management) ............ 326
Vehicle data recording ............... 6
Vehicle Dynamics Integrated Management (VDIM) ............. 326
Vehicle identifi cation number510
Vehicle information display ... 96, 106
Vehicle Stability Control (VSC) ............................................... 325
Ventilators (seat ventilators) . 358
VSC (Vehicle Stability Control) ............................................... 325
W
Warning buzzers ABS ...................................... 468
Airbags ................................. 468 Approach warning ................278
Brake hold ............................473
Brake Override System ........468
Brake system ........................466
Charging system ..................467
Downshifting .........................222
Drive-Start Control
................468
Electric power steering .........469
Engine ..................................467
Hands off steering wheel warn- ing (LTA) .............................269
High coolant temperature .....466
Hybrid system .......................467
Hybrid system overheat ........467
Intuitive parking assist .296, 299, 471
Low engine oil pressure .......467
LTA (Lane Tracing Assist) ...260, 264, 470
Open door ....................132, 134
PKSB (Parking Support Brake) ...........................................471
Pre-collision braking .............251
RCTA (Rear Cross Traffic Alert) ...........................................471
RCTA function.......................301
Seat belt .......................469, 470
Warning label ............................75
Warning lights .........................466 ABS ......................................468
Brake hold operated indicator...........................................473
Brake Override System ........468
Brake system ........................466
Charging system ..................467
Drive-Start Control ................468
Electric power steering .........469
High coolant temperature .....466
Hybrid system overheat warning light .....................................467
Intuitive parking assist OFF indi- cator ...................................471