2022 TOYOTA PRIUS engine

PRIUS_OM_OM47F01U_(U)
5276-3. Do-it-yourself maintenance
6
Maintenance and care
■Using the gauge (if equipped)
The washer fluid level can be checked by
observing the position of the level on the
liquid-covered holes in the gauge.
If the level falls below the second hole
from the bottom (the “LOW” position), refill
the washer fluid.
WARNING
■When adding washer fluid
Do not add washer fluid when the hybrid system is hot or operat ing 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 leading to problems of the washer fluid not spraying.
■ Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.
Current
fluid level

558
PRIUS_OM_OM47F01U_(U)
6-3. Do-it-yourself maintenance
Checking and replacing fuses
Turn the power switch off.
Open the fuse box cover.
Engine compartment type A fuse box
While pushing the 2 claws, lift up
the cover.
When closing the cover, make sure
to attach the 2 claws.
Engine compartment type B fuse box
While pushing the 3 claws, lift up
the cover.
When closing the cover, make sure
to attach the 3 claws.
Left side instrument panel
Remove the lid.
Make sure to press the claw during
removal or installation.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, che ck and replace the fuses as nec-
essary.
1
2

PRIUS_OM_OM47F01U_(U)
5656-3. Do-it-yourself maintenance
6
Maintenance and care
■Parking lights (bulb type) (if equipped)
Remove the clips and the engine compartment cover.
There are two types of clips used, which vary depending on the vehicle.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
When installing the bulb, reverse the steps and in reverse.
Attach the engine compart-
ment cover and install the
clips.
Push up center portion of the
clips (type A only).
Insert and press the clips.
Replacing light bulbs
1
Type B
Type A
2
3
423
Type A
Type B5

5797-1. Essential information
PRIUS_OM_OM47F01U_(U)
7
When trouble arises
■Water level exceeds the floor
When the water level exceeds the floor and time has passed, the electrical
equipment will get damaged, the power windows will not operate, the engine
and motor stop, and the vehicle may not be able to get moving.
■ Using an emergency escape hammer
*1
Laminated glass*2 is used in the windshield and the windows on this vehicle.
Laminated glass cannot be shattered with an emergency hammer
*1.
*1: Contact your Toyota dealer or aftermarket accessory manufactur er for fur-
ther information about an emergency hammer.
*2: If equipped
■ How to distinguish laminated glass
When looking from the cross-sectional
view point, laminated glass is two sheets
of glass pasted together.
Laminated glass
Tempered glass
WARNING
■Caution while driving
Do not drive on roads where the roads may be submerged or the w ater may
be rising. Otherwise the vehicle may be damaged and cannot move, as well
as become flooded and set a drift, which may lead to death.
1
2

587
PRIUS_OM_OM47F01U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks un der the vehicle
(Water dripping from the air conditioning a fter use is normal.)
● Flat-looking tires or uneven tire wear
● High coolant temperature warni ng 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, stumb ling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one s ide when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touch es
the floor
If you notice any of the followi ng symptoms, your vehicle proba -
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

588
PRIUS_OM_OM47F01U_(U)
7-2. Steps to take in an emergency
If a warning light turns on or a war ning
buzzer sounds
Calmly perform the following actions if any of the warning ligh ts
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and w arning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light and warning buzzer (red
indicator)
*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Brake system warning light (yellow indicator)
Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
 Have the vehicle inspected by your Toyota dealer
immediately.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Low engine oil pressure warning light
(warning buzzer)
*2
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
 Have the vehicle inspected by your Toyota dealer
immediately.

5907-2. Steps to take in an emergency
PRIUS_OM_OM47F01U_(U)
Slip indicator lightIndicates a malfunction in:
• The VSC system;
• The TRAC system; or
• The hill-start assist control system
 Have the vehicle inspected by your Toyota dealer
immediately.
The light will flash when the ABS, VSC or TRAC system is
operating.
High coolant temperature warning light • When the light flashes:
Indicates that the engine coolant temperature is too high
The light changes from a flashing to a solid light when
the temperature further increases
 Immediately stop the vehicle in a safe place. ( P. 652)
• When the light comes on without flashing: Indicates a malfunction in the exhaust heat recirculator
system
 Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes)
(If equipped)
PKSB OFF indicator
Indicates a malfunction in the Parking Support Brake func-
tion
 Have the vehicle inspected by your Toyota dealer.
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will come on when the Parking Support Brake function is turned off ( P. 372)
• The light will come on when the Parking Support Brake function is operating ( P. 376)
• The light will flash when the system cannot be temporar- ily used ( P. 378)
Open door warning light (warning buzzer)*3
Indicates that a door is not fully closed
 Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 1.7 gal.
(6.4 L, 1.4 Imp.gal.) or less
 Refuel the vehicle.
Warning lightWarning light/Details/Actions

5927-2. Steps to take in an emergency
PRIUS_OM_OM47F01U_(U)
Inappropriate pedal operation warning light*6 (warning
buzzer) When a buzzer sounds:
Indicates a malfunction in:
• The Brake Override System
• The Drive-Start Control
 Have the vehicle inspected by your Toyota dealer
immediately.
Indicates that the shift position was changed and Drive-
Start Control was operated while depressing the accelera-
tor pedal.
 Momentarily release the accelerator pedal.
Indicates that the Parking Support Brake function (if
equipped) is operating ( P. 376)
 Follow the instruction that is displayed on the multi-
information display.
When a buzzer does not sound:
Indicates that the accelerator and brake pedals are being
depressed simultaneously, and the Brake Override Sys-
tem is operating.
 Release the accelerator pedal and depress the brake
pedal.
(Canada only)
Low engine oil pressure warning (symbol display)*6
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightWarning light/Details/Actions