2021 TOYOTA HIGHLANDER HYBRID battery location

4216-3. Do-it-yourself maintenance
6
Maintenance and care
HIGHLANDER HV_U
The 12-volt battery is located in
the right-hand side of luggage
compartment.
Open the deck board.
Disengage the 8 claws and pull
the side deck board to remove
it.
WARNING
■When adding washer fluid
Do not add washer fluid when the
hybrid system is hot or operating
as washer fluid contains alcohol
and may catch fire if spilled on the
engine, etc.
NOTICE
■Do not use any fluid other
than washer fluid
Do not use soapy water or engine
antifreeze instead of washer fluid.
Doing so may cause streaking on
the vehicle’s painted surfaces, as
well as damaging the pump lead-
ing to problems of the washer
fluid not spraying.
■Diluting washer fluid
Dilute washer fluid with water as
necessary.
Refer to the freezing tempera-
tures listed on the label of the
washer fluid bottle.
12-volt batter y
Location
Before removing the
12-volt battery cover
Removing the 12-volt bat-
tery cover

4937-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER HV_U
One of the following may be the
cause of the problem:
The electronic key may not be
functioning properly.
( P.496)
 There may not be sufficient
fuel in the vehicle’s tank.
Refuel the vehicle.
 There may be a malfunction
in the immobilizer system.
( P.79)
 There may be a malfunction
in the steering lock system.
 The hybrid system may be
malfunctioning due to an elec-
trical problem such as elec-
tronic key battery depletion or
a blown fuse. However,
depending on the type of mal-
function, an interim measure
is available to start the hybrid
system. ( P.494)
NOTICE
●Securely tighten the spare tire
clamp bolt to hold the spare
wheel carrier by the hook.
●Stow the flat tire in the spare tire
location. Failure to do so may
cause damage to the spare tire
carrier. Proper storage reduces
the possibility of injury in a colli-
sion or during sudden braking.
●Have the flat tire repaired and
the spare tire replaced with it as
soon as possible.
■Proper storage of the spare
tire
●If the hoist assembly is slanted
when stowing a tire, the hoist
assembly may become stuck in
the wheel opening and the tire
may not be raised properly,
causing damage to the wheel or
the wire cable.
●Do not attempt to turn the spare
tire clamp bolt without a tire on
the hoist assembly, as doing so
may cause the wire cable to slip
off of the shaft inside the unit
and the wire cable may not be
able to be raised or lowered. If
the spare tire clamp bolt has
been turned without a tire on the
hoist assembly and the wire
cable cannot be raised or low-
ered, contact your Toyota
dealer.
If the hybrid system
will not star t
Reasons for the hybrid sys-
tem not starting vary
depending on the situation.
Check the following and
perform the appropriate
procedure:
The hybrid system will not
start even though the cor-
rect starting procedure is
being followed. ( P.213)

564Alphabetical Index
HIGHLANDER HV_URear automatic air conditioning
system ................................ 354
Seat heaters ......................... 358
High mounted stoplight Replacing light bulbs ............ 449
High-voltage components ....... 75
Hill-start assist control .......... 325
Hood Open .................................... 414
Hooks Cargo net hooks ................... 370
Coat hooks ........................... 383
Retaining hooks (floor mat) .... 24
Horn ......................................... 165
Hybrid battery (tr action battery)
Location.................................. 75
Specification ......................... 512
Warning message .................. 78
Hybrid battery (traction battery) air vents .................................. 77
Hybrid system .......................... 71 Acoustic vehicle alerting system............................................. 73
Emergency shut off system .... 78
Energy monitor/consumption screen ................................ 117
EV drive mode...................... 218
High voltage components....... 75
Hybrid system precautions ..... 75
If the hybrid sy stem will not start
........................................... 493
Overheating.......................... 505
Power (ignition) switch ......... 213
Regenerative braking ............. 72
Starting the hybrid system.... 213
Hybrid System Indicator .. 90, 115
Hybrid transmission .............. 220 S mode ................................. 222
Hybrid vehicle driving tips .... 331
I
I/M test ..................................... 410 Identification
Engine .................................. 511
Vehicle ..................................510
Ignition switch (power switch) ...............................................213Auto power off fun ction .........216
Changing the power switch modes.................................216
If your vehicle has to be stopped in an emergency .................458
Immobilizer system ..................79
Indicators ..................................86
Initialization Items to initialize ...................542
Maintenance .........................407
Power windows ....................179
Tire pressure w arning system
...........................................430
Inside rear view m irror ...166, 167
Instrument panel light control .92
Interior lights...........................362 Front interior light .................362
Rear interior light ..................362
Intuitive parking assist Function................................292
Warning message.................295
J
JackPositioning a floor jack .........415
Vehicle-equipped jack ..........482
Jack handle .............................482
Jam protection function Electronic roof sunshade ......186
Moon roof .............................182
Panoramic moon r oof ...........186
Power back door ..................140
Power windows ....................179

570Alphabetical Index
HIGHLANDER HV_USeat heater switches ............ 358
Seat ventilator switches ....... 358
“SOS” button .......................... 65
Tilt and telescopic steering con-
trol switch ........................... 165
Tire pressure warning reset switch ................................. 431
Vehicle-to-vehicle distance switch ................................. 271
VSC OFF switch................... 326
Window lock switch .............. 181
Windshield defogger switch 344, 347
Windshield wiper and washer switch ......................... 235, 238
Windshield wiper de-icer switch ................................... 344, 352
T
Tachometer ............................... 89
Tail lights Light switch .......................... 229
Replacing light bulbs ............ 449
The Secondary Collision Brake ............................................... 326
Theft deterrent system Alarm ...................................... 81
Immobilizer system ................ 79
Tire inflati on pressure
Maintenance data................. 515
Tire inflation pressure display function............................... 426
Warning light ........................ 470
Tire information ...................... 520 Glossary ............................... 524
Size ...................................... 522
Tire identification number ..... 521
Uniform Tire Quality Grading 523
Tire pressure display ............. 426
Tire pressure warning system Function ............................... 426
Initializing ............................. 430 Installing tire p
ressure warning
valves and transmitters ......429
Registering ID codes ............433
Warning light.........................470
Tires Chains ..................................334
Checking ..............................424
If you have a flat tire .............481
Inflation pressure ..................436
Information ......... ..................520
Replacing .............................481
Rotating tires ........................426
Size ......................................515
Snow tires.............................333
Spare tire ..............................481
Tire inflation pressure display function ...............................426
Tire pressure w arning system
...........................................426
Warning light.........................470
Tools ........................................482
Top tether strap ........................62
Total load capacit y .................510
To w i n g Dinghy towing .......................212
Emergency towing ................461
Trailer towing ...... ..................201
Toyota Multi-operation touch 340
Toyota Safety Sense 2.5 + Automatic High Be am ...........232
Dynamic radar cruise control with full-speed range ..........271
LTA (Lane Tracing Assist) .....260
PCS (Pre-Collisio n System) .249
RSA (Road Sign Assist) ........283
TRAC (Traction Control) ........325
Traction battery (hybrid battery) Hybrid battery (tr action battery)
air vents ................................77
Location ..................................75
Specification .........................512
Warning message...................78