2020 TOYOTA HIGHLANDER HYBRID air conditioning

3555-2. Using the air conditioning system and defogger
HIGHLANDER HV_U
5
Interior features
■Toyota multi-operation
touch (Vehicle with a
12.3-inch display)
Select to display the seat cli-
mate screen.
Each time the switch is selected,
the operation condition changes
as follows.
Hi (3 segments lit) Mid (2 seg-
ments lit) Lo (1 segment
lit) Off
The level indicator (blue) lights
up during operation.
■Operation condition
The power swit ch is in ON.

3805-5. Using the other interior features
HIGHLANDER HV_U
●Disconnect the plug of each
device from the power outlets,
check that the total power con-
sumption of all devices to be con-
nected to the power outlets is less
than 1500 W, reconnect the
devices and then press the
AC120V switch again.
●Disconnect the plug of each
device from the p ower outlets,
check that the devices are not
malfunctioning, reconnect the
devices and then press the
AC120V switch again.
●Check the charge of the hybrid
battery (traction battery) ( P. 1 1 7 ) .
If the charge is low, shift the shift
lever to P, allow the engine to run
to charge the hybrid battery (trac-
tion battery), and then press the
AC120V switch again.
●If the temperature inside the vehi-
cle is high, such as after the vehi-
cle has been park ed in the sun,
use the air conditioning system to
sufficiently vent ilate or cool the
interior, and then press the
AC120V switch again.
●If the vehicle has been stopped in
a cold area, to pro tect the hybrid
battery (traction battery), the
power outlets may not be able to
be used. In this case, drive the
vehicle for a while to warm up the
hybrid battery (traction battery),
and then press the AC120V
switch again.
If the power outlets cannot be used
even after performing the appropri-
ate procedures above, have the
vehicle inspected by your Toyota
dealer.
WA R N I N G
■For safe use
Observe the following precau-
tions.
Failure to do so may lead to an
accident, resulting in death or
serious injury.
●Do not use devices such as the
following when driving:
• Devices which cannot be prop- erly secured within the vehicle.
• Devices which may distract the driver and be a hindrance to
safe driving, such as a TV, DVD
player, etc.
• Unsecured devices which gen- erate heat, such as a toaster,
microwave, electric heater, elec-
tric kettle, coffee maker, etc., as
they may cause burns or a fire
in the case of sudden braking or
an accident.
• Devices which may fall under the pedals and prevent the
brake pedal from being
depressed.
●Do not use devic es which pro-
duce steam while the windows
are closed. Doing so may cause
the windows to fog up, reducing
visibility and making it difficult to
drive safely. Also, the steam
may damage or negatively
affect other devices.
●Do not connect a malfunctioning
device to a powe r outlet, as
doing so may cause the power
outlets to become inoperable.
●Do not disconnect the plug of a
device while your hands are wet
or insert a pin or other object
into the power ou tlet. Also, if a
liquid or snow is on the power
outlet, dry the outlet before
using it.
●Do not attempt to modify, disas-
semble or repair a power outlet.
Also, do not replace the 120
VAC inverter with a commer-
cially available one. For infor-
mation on repairs, contact your
Toyota dealer.

393
HIGHLANDER HV_U
6
6
Maintenance and care
Maintenance and care
.6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 394
Cleaning and protecting the vehicle interior ........... 397
6-2. Maintenance Maintenance requirements.................................. 400
General maintenance.. 402
Emission inspection and maintenance (I/M) pro-
grams ........................ 404
6-3. Do-it-yourself mainte- nance
Do-it-yourself service pre- cautions ..................... 406
Hood ........................... 408
Positioning a floor jack .................................. 409
Engine compartment ... 410
12-volt battery ............. 416
Tires ............................ 418
Tire inflation pressure.. 430
Wheels ......... ...............432
Air conditioning filter .... 433
Cleaning the hybrid battery (traction battery) air intake
vents and filter ........... 435
Electronic key battery.. 438
Checking and replacing fuses.......................... 439
Headlight aim .............. 442Light bulbs ...................
443

3966-1. Maintenance and care
HIGHLANDER HV_U
NOTICE
●To prevent the wheels from cor-
roding, remove any dirt and
store in a place with low humid-
ity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use
organic substances or scrub
with a hard brush.
This may damage the surfaces
of the lights.
●Do not apply wax to the sur-
faces of the lights.
Wax may cause damage to the
lenses.
■When using an automatic car
wash (vehicles with
rain-sensing windshield wip-
ers)
Set the wiper switch to the off
position.
If the wiper switch is in “AUTO”,
the wipers may operate and the
wiper blades may be damaged.
■When using a high pressure
car wash
●When washing the vehicle, do
not let water of the high pres-
sure washer hit directly or the
vicinity of the camera. Due to
the shock from the high pres-
sure water, it is possible the
device may not op erate as nor-
mal.
●Do not bring the nozzle tip close
to boots (rubber or resin manu-
factured cover), connectors or
the following parts. The parts
may be damaged if they come
into contact with high-pressure
water.
• Traction related parts
• Steering parts
• Suspension parts
• Brake parts
●Keep the cleaning nozzle at
least 11.9 in. (30 cm) away from
the vehicle body. Otherwise
resin section, s uch as moldings
and bumpers, may be deformed
and damaged.
Also, do not continuously hold the
nozzle in the same place.
●Do not spray the lower part of
the windshield continuously.
If water enters the air conditioning
system intake located near the
lower part of the windshield, the
air conditioning system may not
operate correctly.

4336-3. Do-it-yourself maintenance
HIGHLANDER HV_U
6
Maintenance and care
 Use only Toyota wheel nuts
and wrenches designed for
use with your aluminum
wheels.
 When rotating, repairing or
changing your tires, check
that the wheel nuts are still
tight after driving 1000 miles
(1600 km).
 Be careful not to damage the
aluminum wheels when using
tire chains.
 Use only Toyota genuine bal-
ance weights or equivalent
and a plastic or rubber ham-
mer when balancing your
wheels. 1
Turn the power switch off.
2 Open the glove box. Slide off
the damper.
3 Push in the glove box on the
vehicle’s outer side to discon-
nect the claws. Then pull out
the glove box and disconnect
the lower claws.
4 Unlock the filter cover ( ),
pull the filter cover out of the
NOTICE
●Ensure that only genuine Toyota
wheels are used on your vehi-
cle.
Tire pressure warning valves
and transmitters may not work
properly with non-genuine
wheels.
Aluminum wheel precau-
tions
Air conditioning filter
The air conditioning filter
must be changed regularly
to maintain air conditioning
efficiency.
Removing the air condi-
tioning filter

4346-3. Do-it-yourself maintenance
HIGHLANDER HV_U
claws ( ), and remove the
filter cover.
5 Remove the filter case.
6 Remove the air conditioning
filter from the filter case and
replace it with a new one.
The “ UP” marks shown on the
filter and the filter case should be
pointing up.
■Checking interval
Inspect and replace the air condi-
tioning filter according to the mainte-
nance schedule. In dusty areas or
areas with heavy traffic flow, early replacement may be required. (For
scheduled maintenance information,
please refer to the “Owner’s Manual
Supplement” or “Scheduled Mainte-
nance Guide”.)
■If air flow from the vents
decreases dramatically
The filter may be clogged. Check
the filter and rep lace if necessary.
NOTICE
■When using the air condition-
ing system
Make sure that a filter is always
installed.
Using the air conditioning system
without a filter may cause damage
to the system.

4587-2. Steps to take in an emergency
HIGHLANDER HV_U
A driver must be in the vehicle to
steer and operate the brakes.
The vehicle’s wheels, drive train,
axles, steering and brakes must
be in good condition. 
Fluid leaks under the vehicle
(Water dripping from the air
conditioning after use is nor-
mal.)
 Flat-looking tires or uneven
tire wear
 Engine coolant temperature
gauge needle continually
points higher than normal
 Changes in exhaust sound
 Excessive tire squeal when
cornering
 Strange noises related to the
suspension system
 Pinging or other noises
related to the hybrid system
 Engine missing, stumbling or
running roughly
 Appreciable loss of power
 Vehicle pulls heavily to one
NOTICE
■Using a flatbed truck
Do not overly tighten the tie
downs or the vehicle may be
damaged.
Emergency towing
If you think something
is wrong
If you notice any of the fol-
lowing symptoms, your
vehicle probably needs
adjustment or repair. Con-
tact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

4987-2. Steps to take in an emergency
HIGHLANDER HV_U
5Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
6Start the hybrid system and
turn the air conditioning sys-
tem on to check that the radi-
ator cooling fan operates and
to check for coolant leaks
from the radiator or hoses.
The fan operates when the air con-
ditioning system is turned on imme-
diately after a cold start. Confirm
that the fan is op erating by check-
ing the fan sound and air flow. If it is
difficult to check th ese, turn the air
conditioning system on and off
repeatedly. (The fan may not oper-
ate in freezing temperatures.)
7 If the fan is not operating:
Stop the hybrid system
immediately and contact your
Toyota dealer.
If the fan is operating:
Have the vehicle inspected at
the nearest Toyota dealer.
8 Check if “Engine Coolant
Temp High Stop in a Safe
Place See Owner's Manual”
is shown on the multi-infor-
mation display.
If the message does not disappear:
Stop the hybrid system and contact
your Toyota dealer. If the message is not displayed:
Have the vehicle inspected at the
nearest Toyota dealer.
If “Hybrid System Over-
heated Output Power
Reduced” is shown on the
multi-information display
1 Stop the vehicle in a safe
place.
2 Stop the hybrid system and
carefully lift the hood.
3 After the hybrid system has
cooled down, inspect the
hoses and radiator core (radi-
ator) for any leaks.
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
Radiator
Cooling fan
4 The coolant level is satisfac-
tory if it is between the