2021 TOYOTA HIGHLANDER HYBRID fuse box

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

4466-3. Do-it-yourself maintenance
HIGHLANDER HV_U
1Turn the power switch off.
2 Open the fuse box cover.
Engine compartment: type A
fuse box (if equipped)
Push the tab in and lift the lid off.
Engine compartment: type B
fuse box
Push the tab in and lift the lid off.
Under the driver’s side instru-
ment panel
Remove the lid.
Make sure to push the claw when
removing/installing the lid.
Right side luggage compart-
ment
Folding down the third seats.
(  P.158)
Disengage the claw and open the
cover.
3 Remove the fuse.
Only type A fuse can be removed
using the pullout tool.
Checking and replac-
ing fuses
If any of the electrical com-
ponents do not operate, a
fuse may have blown. If this
happens, check and replace
the fuses as necessary.
Checking and replacing
fuses

4476-3. Do-it-yourself maintenance
6
Maintenance and care
HIGHLANDER HV_U
4Check if the fuse is blown.
Replace the blown fuse with a new
fuse of an appropriate amperage
rating. The amperage rating can be
found on the fuse box lid.
Ty p e A
Normal fuse
Blown fuse
Type B
Normal fuse
Blown fuse
Type C Normal fuse
Blown fuse
■After a fuse is replaced
●If the lights do not turn on even
after the fuse has been replaced,
a bulb may need replacement.
(
 P.449)
●If the replaced fuse blows again,
have the vehicle inspected by
your Toyota dealer.
■If there is an ove rload in a cir-
cuit
The fuses are designed to blow, pro-
tecting the wiring harness from
damage.
■When replacing light bulbs
Toyota recommends that you use
genuine Toyota pr oducts designed
for this vehicle. Because certain
bulbs are connected to circuits
designed to prevent overload,
non-genuine parts or parts not
designed for this vehicle may be
unusable.
WARNING
■To prevent system break-
downs and vehicle fire
Observe the following precau-
tions.
Failure to do so may cause dam-
age to the vehicle, and possibly a
fire or injury.
●Never use a fuse of a higher
amperage rating than that indi-
cated, or use any other object in
place of a fuse.
●Always use a genuine Toyota
fuse or equivalent.
Never replace a fuse with a
wire, even as a temporary fix.
●Do not modify the fuses or fuse
boxes.

4486-3. Do-it-yourself maintenance
HIGHLANDER HV_U
Adjustment bolt A
Adjustment bolt B
 Make sure the vehicle has a
full tank of gasoline and the
area around the headlight is
not deformed.
 Park the vehicle on level
ground.
 Make sure the tire inflation
pressure is at the specified
level.
 Have someone sit in the
driver’s seat.
 Bounce the vehicle several
times.
WARNING
■Fuse box near the power con-
trol unit
Never check or replace the fuses
as there are high voltage parts
and wiring near the fuse box.
Doing so may cause electric
shock, resulting in death or seri-
ous injury.
NOTICE
■Before replacing fuses
Have the cause of electrical over-
load determined and repaired by
your Toyota dealer as soon as
possible.
Headlight aim
Vertical movement adjust-
ing bolts
Before checking the head-
light aim

4997-2. Steps to take in an emergency
7
When trouble arises
HIGHLANDER HV_U
If you have a set of jumper (or
booster) cables and a second
vehicle with a 12-volt battery,
you can jump start your vehicle
by following the steps below.
1Confirm that the electronic
key is being carried.
Vehicles with an alarm: When con-
necting the jumper (or booster)
cables, depending on the situation,
the alarm may acti vate and doors
locked. ( P.82)
2 Open the hood ( P.414) and
fuse box cover.
3 Open the exclusive jump
starting terminal cover.
4 Connect a positive jumper cable clamp to on your vehicle and
connect the clamp on the other end of the positive cable to on
the second vehicle. Then, connect a negative cable clamp to Restarting the hybrid sys-
tem

5007-2. Steps to take in an emergency
HIGHLANDER HV_U
on the second vehicle and connect the clamp at the other end of
the negative cable to .
Exclusive jump starting terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery term inal (second vehicle)
Solid, stationary, unpainted metallic point away from the exclu sive
jump starting terminal and any m oving parts as shown in the illus-
tration
5 Start the engine of the sec-
ond vehicle. Increase the
engine speed slightly and
maintain at that level for
approximately 5 minutes to
recharge the 12-volt battery
of your vehicle.
6 Open and close any of the
doors of your vehicle with the
power switch OFF.
7 Maintain the engine speed of
the second vehicle and start
the hybrid system of your
vehicle by turning the power
switch to ON.
8 Make sure the “READY” indi-
cator comes on. If the indica- tor light does not come on,
contact your Toyota dealer.
9 Once the hybrid system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
10Close the exclusive jump starting terminal cover, and
reinstall the fuse box cover to
its original position.
Once the hybrid system starts,
have the vehicle inspected at
your Toyota dealer as soon as
possible.

563Alphabetical Index
HIGHLANDER HV_UEvent data recorder (EDR)......... 7
F
Flat tire
Tire pressure warning system........................................... 426
Vehicles with a spare tire ..... 481
Floor mats ................................. 24
Fluid Brake .................................... 515
Hybrid transmission.............. 514
Washer ................................. 420
Fog lights Switch................................... 235
Footwell light .................... ...... 362
Front passenger occupant clas- sification system .................... 43
Front seats Adjustment ........................... 153
Cleaning ............................... 403
Correct driving posture ........... 25
Driving position memory....... 159
Head restraints ..................... 162
Memory recall function ......... 161
Seat heaters ......................... 358
Seat position memory .......... 159
Seat ventilators .................... 358
Front side marker light Light switch .......................... 229
Front side marker lights Replacing light bulbs ............ 449
Front turn signal lights Replacing light bulbs ............ 449
Turn signal lever ................... 223
Fuel Capacity ............................... 511
Fuel gauge ............................. 89
Information ........................... 518
Refueling .............................. 240
Type ..................................... 511
Warning light ........................ 469 Fuel consumption
Average fuel economy ....94, 102
Current fuel consumption94, 102
Fuel economy ...................94, 102
Fuel filler door If the fuel filler door cannot be opened ...............................495
Refueling ..............................240
Fuel gauge.................................89
Fuses .......................................446
G
Garage door opene r ...............390
Gauges ......................................89
Glove box ................................366
Glove box light........................366
H
Head restraints .......................162
Headlight aim ..........................448
Headlights Adaptive Front-lighting System (AFS) ..................................231
Automatic High Beam system ...........................................232
Light switch...........................229
Replacing light bulbs ............449
Head-up display ...................... 112 Driving information display area........................................... 112
Hybrid System Indicator ....... 115
Navigation system-linked display ........................................... 115
Settings ................................ 114
Heated steering wheel............358
Heaters Automatic air conditioning sys-tem .....................................342
Heated steering wheel..........358
Outside rear view mirrors ...344, 348