2023 TOYOTA PRIUS air conditioning

495
6Maintenance and care
PRIUS_OM_OM47F32E_(EE)6-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 496
Cleaning and protecting
the vehicle interior ........... 502
6-2. Maintenance
Maintenance
requirements.................... 505
6-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ...................... 508
Hood .................................. 511
Positioning a floor jack ....... 513
Engine compartment.......... 514
Tires ................................... 528
Tire inflation pressure ........ 537
Wheels ............................... 539
Air conditioning filter .......... 542
Cleaning the hybrid battery
(traction battery) air intake
vent and filter ................... 545
Wiper insert
replacement ..................... 550
Electronic key battery ........ 554
Checking and replacing
fuses ................................ 557
Light bulbs ......................... 561

5016-1. Maintenance and care
PRIUS_OM_OM47F32E_(EE)
6
Maintenance and care
NOTICE
■When using a high pressure car wash
● When washing the vehicle, do not spray the camera or its surrounding
area directly with a high pressure washer. Shock applied from high pres-
sure water may cause the device to not operate normally.
● Do not spray water directly on the radar which is equipped behind the
emblem. Otherwise it may cause the device to be damaged.
● Do not bring the nozzle tip close to boots (rubber or resin manufactured
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 30 cm (11.9 in.) away from the vehicle
body. Otherwise resin section, such 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 cor-
rectly.
● Do not wash the underside of the vehicle using a high pressure car
washer.
■ When raising the windshield wiper arms
Make sure to hold the hook parts of the
wiper arms to raise them.
Do not hold only the wiper blades when
raising them, or it may cause deformation
of the wiper blades.
Hook parts

5096-3. Do-it-yourself maintenance
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Maintenance and care
WARNING
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become el ectrically energized. To avoid death
or serious injury, observe the following precautions.
■ When working on the engine compartment
● Make sure that the “Accessory”, “Ignition ON” or mileage display (P. 118,
120) on the main display and the “READY” indicator are both off.
● Keep hands, clothing and tools away from the moving fan.
● Be careful not to touch the engine, power control unit, radiator, 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 compartment.
● Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
● Be extremely cautious when working on the 12-volt battery. It contains poi-
sonous and corrosive sulfuric acid.
● Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. If fluid gets on your hands or in your eyes, flush the
affected area with clean water immediately. If you still experience discom-
fort, consult a doctor.
■ When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. ( P. 520)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.

5206-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
Radiator and condenser
WARNING
■ When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.
■ When the electric cooling fans are operating
Do not touch the engine compartment.
With the power switch in ON mode, the electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. Be sure the power switch is off when working near the electric cool-
ing fans or radiator grille.

5426-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
Air conditioning filter
Turn the power switch off.
Open the glove box and slide
off the damper.
Push in each side of the glove
box to disconnect the claws,
and then slowly and fully open
the glove box while supporting
it.
With the glove box fully open,
slightly lift up the glove box and
pull toward the seat to detach
the bottom of the glove box.
Do not use excessive force if the
glove box does not detach when
lightly pulled. Instead, pull toward
the seat while slightly adjusting the
height of the glove box.
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Replacing the air conditioning filter
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2
3
4

5436-3. Do-it-yourself maintenance
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Maintenance and care
Remove the filter cover.
Unlock the filter cover.
Move the filter cover in the direction of the arrow, and then pull it
out of the claws.
Remove the filter case.
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The “ UP” marks shown on the fil-
ter should be pointing up.
When installing, reverse the steps listed.
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1
2
Left-hand drive vehiclesRight-hand drive vehicles
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7
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5446-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to the
“Toyota Service Booklet” or “Toyota Warranty Booklet”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■ When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditi oning system without a filter may cause damage to the
system.
■ When removing the glove box
Always follow the specified procedure to remove the glove box ( P. 542). If
the glove box is removed without following the specified procedure, the
hinge of the glove box may become damaged.
■ To prevent damage to the filter cover
When moving the filter cover in the direc-
tion of arrow to release the fitting, pay
attention not to apply excessive force to
the claws. Otherwise, the claws may be
damaged.

5797-2. Steps to take in an emergency
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When trouble arises
If you think something is wrong
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● High coolant temperature warning light flashes or comes on
● 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 side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touches
the floor
If you notice any of the following symptoms, your vehicle proba-
bly needs adjustment or repair. Contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms