2020 TOYOTA HIGHLANDER HYBRID tow

4066-3. Do-it-yourself maintenance
HIGHLANDER HV_U
6-3.Do-it-yourself maintenance
Do-it-yourself ser vice
precautions
If you perform maintenance
by yourself, be sure to fol-
low the correct procedure
as given in these sections.
Maintenance
ItemsParts and tools
12-volt battery
condition
( P.416)
•Grease
• Conventional
wrench (for ter-
minal clamp
bolts)
Brake fluid
level ( P.414)
• FMVSS No.116
DOT 3 or SAE
J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding
brake fluid)
Engine/power
control unit
coolant level
( P.413)
• “Toyota Super
Long Life Cool-
ant” or a similar
high quality eth-
ylene gly-
col-based
non-silicate,
non-amine,
non-nitrite and
non-borate cool-
ant with long-life
hybrid organic
acid technology
For the U.S.A.:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 50% cool-
ant and 50%
deionized water.
For Canada:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 55% cool-
ant and 45%
deionized water.
• Funnel (used only for adding
coolant)
Engine oil level
( P.410)
• “Toyota Genuine
Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses
( P.439)• Fuse with same
amperage rating
as original
ItemsParts and tools

4126-3. Do-it-yourself maintenance
HIGHLANDER HV_Ube consumed while driving. In the
following situatio
ns, oil consump-
tion may increase, and engine oil
may need to be refilled in between
oil maintenance intervals.
●When the engine is new, for
example directly after purchasing
the vehicle or after replacing the
engine
●If low quality oil or oil of an inap-
propriate viscosity is used
●When driving at high engine
speeds or with a heavy load,
when towing, or when driving
while accelerating o r decelerating
frequently
●When leaving the engine idling for
a long time, or wh en driving fre-
quently through heavy traffic
■After changing the engine oil
The engine oil maintenance data
should be reset. Perform the follow-
ing procedures:
4.2-inch display
1 Press or of the meter
control switch to select .
2 Press or of the meter
control switch, select and
then press and hold .
3 Press or of the meter
control switch, se lect “Oil Mainte-
nance” and then press .
4 Select “Yes” and press .
5 A message will be displayed on
the multi-information display
when the reset procedure has
been completed.
7-inch display
1 Press or of the meter
control switch to select .
2 Press or of the meter
control switch, select and
then press and hold . 3
Press or of the meter
control switch, select “Oil Mainte-
nance” and then press .
4 Select “Yes” and press .
5 A message will be displayed on
the multi-inform ation display
when the reset procedure has
been completed.
WA R N I N G
■Used engine oil
●Used engine oil contains poten-
tially harmful contaminants
which may cause skin disorders
such as inflammation and skin
cancer, so care should be taken
to avoid prolonged and
repeated contact. To remove
used engine oil from your skin,
wash thoroughly with soap and
water.
●Dispose of used o il and filters
only in a safe and acceptable
manner. Do not dispose of used
oil and filters in h ousehold trash,
in sewers or onto the ground.
Call your Toyota dealer, service
station or auto parts store for
information concerning recy-
cling or disposal.
●Do not leave used engine oil
within the reach of children.
NOTICE
■To prevent serious engine
damage
Check the oil le vel on a regular
basis.
■When replacing the engine oil
●Be careful not to spill engine oil
on the vehicle components.
●Avoid overfilling, or the engine
could be damaged.

4206-3. Do-it-yourself maintenance
HIGHLANDER HV_Udriving on snow-covered or icy
roads. For driving on snow-covered
roads or icy roads, the use of snow
tires is recommended. When install-
ing snow tires, be sure to replace all
four tires.
●All season tires
All season tires are designed to pro-
vide better traction in snow and to
be adequate for driving in most win-
ter conditions a s well as for use
year-round. All season tires, how-
ever, do not have adequate traction
performance compared with snow
tires in heavy or loose snow. Also,
all season tires fall short in accelera-
tion and handling performance com-
pared with summer tires in highway
driving.
●Snow tires
For driving on snow-covered roads
or icy roads, we recommend using
snow tires. If you need snow tires,
select tires of the same size, con-
struction and load capacity as the
originally installed tires. Since your
vehicle has radial t ires as original
equipment, make sure your snow
tires also have radial construction.
Do not install stud ded tires without
first checking local regulations for
possible restrictions. Snow tires
should be installed on all wheels.
(  P.327)
■If the tread on snow tires wears
down below 0.16 in. (4 mm)
The effectiveness of the tires as
snow tires is lost.
WA R N I N G
■When inspecting or replacing
tires
Observe the following precautions
to prevent accidents.
Failure to do so may cause dam-
age to parts of the drive train as
well as dangerous handling char-
acteristics, which may lead to an
accident resulting in death or seri-
ous injury.
●Do not mix tires of different
makes, models or tread pat-
terns.
Also, do not mix tires of remark-
ably different treadwear.
●Do not use tire sizes other than
those recommended by Toyota.
●Do not mix differently con-
structed tires (rad ial, bias-belted
or bias-ply tires).
●Do not mix summer, all season
and snow tires.
●Do not use tires that have been
used on another vehicle.
Do not use tires if you do not
know how they were used previ-
ously.
●Do not tow if your vehicle has a
compact spare tire installed.
NOTICE
■Driving on rough roads
Take particular care when driving
on roads with loose surfaces or
potholes.
These conditions may cause
losses in tire inflation pressure,
reducing the cush ioning ability of
the tires. In addition, driving on
rough roads may cause damage
to the tires themselves, as well as
the vehicle’s wheels and body.

4226-3. Do-it-yourself maintenance
HIGHLANDER HV_U
7-inch display
■Routine tire inflation pressure
checks
The tire pressure warning system
does not replace routine tire inflation
pressure checks. Make sure to
check tire inflation pressure as part
of your routine of daily vehicle
checks.
■Situations in which the tire
pressure warning system may
not operate properly
●In the following cases, the tire
pressure warning system may not
operate properly.
• If non-genuine Toyota wheels are
used.
• A tire has been replaced with a tire that is not an OE (Original
Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains, etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings.
• If the tire inflation pressure is
extremely higher than the speci-
fied level.
• If wheel without the tire pressure
warning valve and transmitter is
used.
• If the ID code on the tire pressure
warning valves and transmitters is
not registered in the tire pressure
warning computer.
●Performance may be affected in
the following situations.
• Near a TV tower, electric power plant, gas station, radio station,
large display, airpo rt or other facil-
ity that generates strong radio
waves or electrical noise
• When carrying a portable radio,
cellular phone, cordless phone or
other wireless communication
device
●If tire position information is not
correctly displayed due to the
radio wave conditions, the display
may be corrected by driving and
changing the radio wave condi-
tions.
●When the vehicle is parked, the
time taken for the warning to start
or go off could be extended.
●When tire inflation pressure
declines rapidly for example when
a tire has burst, the warning may
not function.
■Warning performance of the tire
pressure warning system
The warning of the tire pressure
warning system w ill change in
accordance with the conditions
under which it was initialized. For
this reason, the system may give a
warning even if th e tire pressure
does not reach a low enough level,
or if the pressure is higher than the
pressure that was adjusted to when
the system was initialized.

4356-3. Do-it-yourself maintenance
HIGHLANDER HV_U
6
Maintenance and care
Remove the dust from the air
intake vent with a vacuum
cleaner, etc.
Make sure to only use a vacuum to
suck out dust and clogs. Attempting
to blow out dust and clogs using an
airgun, etc. may push it into the air
intake vent. ( P.437)
If dust and clogs cannot be com-
pletely removed with the air
intake vent cover installed,
remove the cover and clean the
filter.
1 Turn the power switch off.
2 Remove the air intake vent
cover.
Pull the cover as shown in the illus-
tration to disengage the 6 claws,
starting from the claw in the upper
right corner and pull the cover
toward the front of the vehicle to
remove it.
3 Remove the air intake vent
filter.
Disengage the claw to remove the
filter from the rear scuff plate.
Cleaning the hybrid
batter y (traction bat-
ter y) air intake vents
and filter
To prevent the fuel economy
from being affected, visually
inspect the hybrid battery
(traction battery) air intake
vents periodically for dust
and clogs. If it is dusty or
clogged or if “Maintenance
Required for Traction Bat-
tery Cooling Parts See
Owner’s Manual” is shown
on the multi-information
display, clean the air intake
vent using the following
procedures:
Cleaning the air intake
vents
If dust and clogs cannot
be completely removed

4466-3. Do-it-yourself maintenance
HIGHLANDER HV_U
3Disconnect the wire harness.
4 Turn the bulb base counter-
clockwise and remove it.
5 Remove the light bulb.
6 Install a new light bulb, and
then install the bulb base to
the light unit by inserting it
and turning it clockwise.
After installing th e bulb base, wig-
gle it lightly to make sure it is
securely installed and turn on the
turn signal lights to visually check
that there is no light leaking from
between the bulb base and light unit.
7
Install the light unit.
Align the 2 guides and push the
light unit toward the front of the
vehicle to install it.
8 Install the 2 screws.

451
HIGHLANDER HV_U
7
7
When trouble arises
When trouble arises
.7-1. Essential informationEmergency flashers .... 452
If your vehicle has to be stopped in an emergency.................................. 452
If the vehicle is trapped in rising water ................ 453
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed......................... 455
If you think something is wrong ........................ 458
If a warning light turns on or a warning buzzer sounds.................................. 460
If a warning message is dis- played........................ 470
If you have a flat tire.... 474
If the hybrid system will not start ........................... 486
If you lose your keys ... 488
If the fuel filler door cannot be opened ................. 488
If the electronic key does not operate properly .. 489
If the 12-volt battery is dis- charged ..................... 491
If your vehicle overheats .................................. 497
If the vehicle becomes stuck .................................. 500

4557-2. Steps to take in an emergency
HIGHLANDER HV_U
7
When trouble arises
7-2.Steps to take in an emergency
If your vehicle needs
to be towed
If towing is necessary, we
recommend having your
vehicle towed by your Toy-
ota dealer or commercial
towing service, using a
wheel-lift type truck or flat-
bed truck.
Use a safety chain system
for all towing, and abide by
all state/provincial and local
laws.
If towing your vehicle with a
wheel-lift type truck from
the front, the vehicle’s rear
wheels and axles must be in
good conditions. ( P.457)
If they are damaged, use a
towing dolly or flatbed
truck.
WA R N I N G
Observe the following precau-
tions.
Failure to do so m ay result in
death or serious injury.
■When towing the vehicle
2WD models
Be sure to transp ort the vehicle
with the front wheels raised or
with all four wheels raised off the
ground. If the vehicle is towed
with the front wheels contacting
the ground, the drivetrain and
related parts ma y be damaged or
electricity generated by the opera-
tion of the motor may cause a fire
to occur depending on the nature
of the damage or malfunction.
AWD models
Be sure to transp ort the vehicle
with all four wheels raised off the
ground. If the vehicle is towed
with the tires co ntacting the
ground, the drivetrain or related
parts may be damaged, the vehi-
cle may fly off the truck, or elec-
tricity generated by the operation
of the motor may cause a fire to
occur depending o n the nature of
the damage or malfunction.