Toyota Prius Prime (2021 year). Manual in english - part 10

 

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Toyota Prius Prime (2021 year). Manual in english - part 10

 

 

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Positioning a floor jack

Front

Set a floor jack against the front suspension member.

Rear

When  using  a  floor  jack,  follow  the  instructions  in  the  manual
provided with the jack and perform the operation safely.
When raising your vehicle with a floor jack, position the jack cor-
rectly.  Improper  placement  may  damage  your  vehicle  or  cause
injury.

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Engine compartment

IO73PH112

Engine coolant reservoir 

(

P. 604)

Fuse boxes

 (

P. 650)

Engine oil level dipstick 

(

P. 601)

Engine oil filler cap (

P. 602)

Brake fluid reservoir

(

P. 610)

Washer fluid tank  (

P. 612)

12-volt battery

(

P. 607)

Power control unit coolant 
reservoir

 (

P. 604)

Radiator 

(

P. 606)

Condenser

 (

P. 606)

Electric cooling fans

1

2
3

4
5

6
7
8

9

10
11

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With the engine at operating temperature and turned off, check the oil
level on the dipstick.

Checking the engine oil

Park  the  vehicle  on  level  ground. After  warming  up  the  engine
and turning off the hybrid system, wait more than 5 minutes for
the oil to drain back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.

Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check the
oil level.

Low
Normal
Excessive

Wipe the dipstick and reinsert it fully.

Engine oil

1

2

3

4

5

1
2
3

6

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Adding engine oil

If  the  oil  level  is  below  or  near
the low level mark, add engine
oil  of  the  same  type  as  that
already in the engine.

Make  sure  to  check  the  oil  type  and  prepare  the  items  needed
before adding oil.

Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.

Engine oil consumption

A certain amount of engine oil will be consumed while driving. In the following
situations,  oil  consumption  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 inappropriate viscosity is used

When driving at high engine speeds or with a heavy load, or when driving
while accelerating or decelerating frequently

When leaving the engine idling for a long time, or when driving frequently
through heavy traffic

Engine oil selection

P. 734

Oil quantity (Low 

 Full)

1.6 qt. (1.5 L, 1.3 Imp.qt.)

Items

Clean funnel

1

2

3

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WARNING

Used engine oil

Used  engine  oil  contains  potentially  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 oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground.  Call  your  Toyota  dealer,  service  station  or  auto  parts  store  for
information concerning recycling or disposal.

Do not leave used engine oil within the reach of children.

NOTICE

To prevent serious engine damage

Check the oil level 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.

Check the oil level on the dipstick every time you refill the vehicle.

Be sure the engine oil filler cap is properly tightened.

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The coolant level is satisfactory if it is between the “MAX” and “MIN”
lines on the reservoir when the hybrid system is cold.

Engine coolant reservoir

Reservoir cap
“MAX” line
“MIN” line

If  the  level  is  on  or  below  the
“MIN” line, add coolant up to the
“MAX” line. (

P. 721)

Power control unit coolant reservoir

Reservoir cap
“FULL” line
“LOW” line

If  the  level  is  on  or  below  the
“LOW”  line,  add  coolant  up  to
the “FULL” line. (

P. 721)

Coolant

1
2
3

1
2
3

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Coolant selection

Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -31

F [-35

C])

Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized water. (Minimum temperature: -44

F [-42

C])

For more details about coolant, contact your Toyota dealer.

If the coolant level drops within a short time of replenishing

Visually check the radiator, hoses, engine/power control unit coolant reservoir
caps, drain cock and water pump. 
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.

WARNING

When the hybrid system is hot

Do not remove the engine/power control unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

NOTICE

When adding coolant

Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.

If you spill coolant

Be sure to wash it off with water to prevent it from damaging parts or paint.

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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 your Toyota dealer.

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.

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Check the 12-volt battery as follows:

12-volt battery exterior

Make sure that the 12-volt battery terminals are not corroded and
that there are no loose connections, cracks, or loose clamps.
Terminals

When opening the cover of the positive (+) battery terminal

Before recharging

When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable  and  explosive.  Therefore,  observe  the  following  precautions  before
recharging:

If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.

Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.

12-volt battery

While  pushing  the  portion  shown  in  the
illustration from both sides, lift the end of
the cover up.

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After recharging/reconnecting the 12-volt battery

Unlocking the doors using the smart key system may not be possible imme-
diately after reconnecting the 12-volt battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors.

Start the hybrid system with the power switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. However, the
hybrid system will operate normally from the second attempt.

The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to the status it
was in before the 12-volt battery was disconnected. Make sure to turn off
the power before disconnect the 12-volt battery. Take extra care when con-
necting  the  12-volt  battery  if  the  power  switch  mode  prior  to  discharge  is
unknown.

If the system will not start even after multiple attempts at all methods above,
contact your Toyota dealer.

WARNING

Chemicals in the 12-volt battery

The 12-volt battery contains poisonous and corrosive sulfuric acid and may
produce hydrogen gas which is flammable and explosive. To reduce the risk
of death or serious injury, take the following precautions while working on or
near the 12-volt battery:

Do not cause sparks by touching the 12-volt battery terminals with tools.

Do not smoke or light a match near the 12-volt battery.

Avoid contact with eyes, skin and clothes.

Never inhale or swallow electrolyte.

Wear protective safety glasses when working near the 12-volt battery.

Keep children away from the 12-volt battery.

Where to safely charge the 12-volt battery

Always  charge  the  12-volt  battery  in  an  open  area.  Do  not  charge  the
12-volt battery in a garage or closed room where there is insufficient ventila-
tion.

How to recharge the 12-volt battery

Only perform a slow charge (5 A or less). The 12-volt battery may explode if
charged at a quicker rate.

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WARNING

Emergency measures regarding electrolyte

If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.

If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.

If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.

If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.

When disconnecting the 12-volt battery

Do not disconnect the negative (-) terminal on the body side. The discon-
nected negative (-) terminal may touch the positive (+) terminal, which may
cause a short and result in death or serious injury.

NOTICE

When recharging the 12-volt battery

Never  recharge  the  12-volt  battery  while  the  hybrid  system  is  operating.
Also, be sure all accessories are turned off.

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Checking fluid level

The brake fluid level should be
between  the  “MAX”  and  “MIN”
lines on the tank.

Adding fluid

Slide  and  lift  up  the  rubber
strip  to  partly  remove  it  as
shown.

Disconnect  the  claws  and
remove the service cover.

Brake fluid

1

2

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Remove the reservoir cap.

Add brake fluid slowly while checking the fluid level.

Make sure to check the fluid type and prepare the necessary item.

Brake fluid can absorb moisture from the air

Excess moisture in the brake fluid can cause a dangerous loss of braking effi-
ciency. Use only newly opened brake fluid.

3

4

Fluid type

SAE J1703 or FMVSS No.116 DOT 3 brake fluid
SAE J1704 or FMVSS No.116 DOT 4 brake fluid

Items

Clean funnel

WARNING

When filling the reservoir

Take  care  as  brake  fluid  can  harm  your  hands  and  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 discomfort, see a doctor.

NOTICE

If the brake fluid level is low or high

It is normal for the brake fluid level to go down slightly as the brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.

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Open the lid.

Check the washer fluid level on the level gauge.

“NORMAL”
“LOW”

If  the  washer  fluid  level  is  at
“LOW”, add washer fluid.

Washer fluid

1

2

1
2

3

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WARNING

When adding washer fluid

Do  not  add  washer  fluid  when  the  hybrid  system  is  hot  or  operating  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.

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Tires

Check if the treadwear indicators are showing on the tires. Also check
the tires for uneven wear, such as excessive wear on one side of the
tread.

New tread
Worn tread
Treadwear indicator

The location of treadwear indicators is shown by the “TWI” or “

” mark,

etc., molded into the sidewall of each tire.
Replace the tires if the treadwear indicators are showing on a tire.

Rotate  the  tires  in  the  order
shown.

To equalize tire wear and extend

tire life, Toyota recommends that

tire  rotation  is  carried  out  at  the

same interval as tire inspection.
Do  not  fail  to  initialize  the  tire

pressure  warning  system  after

tire rotation.

Replace or rotate tires in accordance with maintenance sched-
ules and treadwear.

Checking tires

Tire rotation

1
2
3

Front

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Your vehicle is equipped with a tire pressure warning system that uses
tire pressure warning valves and transmitters to detect low tire infla-
tion pressure before serious problems arise.
If  the  tire  pressure  drops  below  a  predetermined  level,  the  driver  is
warned by a warning light. (

P. 677)

Installing tire pressure warning valves and transmitters

When  replacing  tires  or  wheels,  tire  pressure  warning  valves  and
transmitters must also be installed.
When  new  tire  pressure  warning  valves  and  transmitters  are
installed,  new  ID  codes  must  be  registered  in  the  tire  pressure
warning  computer  and  the  tire  pressure  warning  system  must  be
initialized.  Have  tire  pressure  warning  valve  and  transmitter  ID
codes registered by your Toyota dealer. (

P. 616)

Initializing the tire pressure warning system

The tire pressure warning system must be initialized in the fol-
lowing circumstances:

When rotating front and rear tires which have different tire infla-
tion pressures

When the tire inflation pressure is changed such as when chang-
ing traveling speed or load weight

When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the benchmark pressure.

Tire pressure warning system

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How to initialize the tire pressure warning system

Park the vehicle in a safe place and turn the power switch off.

Initialization cannot be performed while the vehicle is moving.

Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (

P. 737)

Make sure to adjust the tire pressure to the specified cold tire infla-

tion  pressure  level.  The  tire  pressure  warning  system  will  operate

based on this pressure level.

Turn the power switch to ON mode.

Switch the multi-information display to the 

 screen. 

(

P. 246)

Press 

 or 

 of the meter control switches, select 

(“Vehicle Settings”), and then press 

.

Press 

 or 

 of the meter control switches, select “Mainte-

nance System”, and then press 

.

Press 

 or 

 of the meter control switches, select “TPMS”,

and then press 

.

Press and hold 

.

When 

initialization 

com-

pletes,  a  message  is  dis-
played 

on 

the 

multi-

information  display  and  the
tire  pressure  warning  light
illuminates.

Registering ID codes

The tire pressure warning valve and transmitter is equipped with a
unique ID code. When replacing a tire pressure warning valve and
transmitter, it is necessary to register the ID code. Have the ID code
registered by your Toyota dealer.

1

2

3

4

5

6

7

8

Until Complete

9

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When to replace your vehicle’s tires

Tires should be replaced if:

The treadwear indicators are showing on a tire.

You  have  tire  damage  such  as  cuts,  splits,  cracks  deep  enough  to

expose the fabric, and bulges indicating internal damage.

A tire goes flat repeatedly or cannot be properly repaired due to the size

or location of a cut or other damage.

If you are not sure, consult with your Toyota dealer.

Replacing tires and wheels

If the ID code of the tire pressure warning valve and transmitter is not reg-

istered, the tire pressure warning system will not work properly. After driv-

ing  for  about  20  minutes,  the  tire  pressure  warning  light  blinks  for  1

minute and stays on to indicate a system malfunction.

Tire life

Any tire over 6 years old must be checked by a qualified technician even

if it has seldom or never been used or damage is not obvious.

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.

Maximum load of tire

Check that the maximum load of the replacement tire is greater than 1/2

of the Gross Axle Weight Ratings (GAWR) of either the front axle or the

rear axle, whichever is greater.
For  the  GAWR,  see  the  Certification

Label. For the maximum load of the tire,

see the load limit at maximum cold tire

inflation  pressure  mentioned  on  the

sidewall of the tire. (

P. 742)

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Tire types

Summer tires
Summer tires are high-speed performance tires best suited to highway

driving under dry conditions. Since summer tires do not have the same

traction  performance  as  snow  tires,  summer  tires  are  inadequate  for

driving  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 provide better traction in snow and to

be  adequate  for  driving  in  most  winter  conditions  as  well  as  for  use

year-round. All  season  tires,  however,  do  not  have  adequate  traction

performance compared with snow tires in heavy or loose snow. Also, all

season tires fall short in acceleration 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  tires  as  original  equipment,  make  sure  your  snow

tires also have radial construction. Do not install studded tires without

first  checking  local  regulations  for  possible  restrictions.  Snow  tires

should be installed on all wheels. (

P. 507)

If the tread on snow tires wears down below 0.16 in. (4 mm)

The effectiveness of the tires as snow tires is lost.

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Situations in which the tire pressure warning system may not oper-

ate properly

In the following cases, the tire pressure warning system may not operate

properly.
• If non-genuine Toyota wheels are used.

• When  a  replacement  tire  is  used,  the  system  may  not  operate  cor-

rectly due to the structure of the replacement 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  specified

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, airport or other facility that generates strong radio waves or

electrical noise

• When  carrying  a  portable  radio,  cellular  phone,  cordless  phone  or

other wireless communication device

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.

The initialization operation

Make sure to carry out initialization after adjusting the tire inflation pres-

sure.

Also, make sure the tires are cold before carrying out initialization or tire

inflation pressure adjustment.

If you have accidentally turned the power switch off during initialization,

it  is  not  necessary  to  press  the  reset  switch  again  as  initialization  will

restart  automatically  when  the  power  switch  has  been  turned  to  ON

mode for the next time.

If you accidentally press the reset switch when initialization is not neces-

sary,  adjust  the  tire  inflation  pressure  to  the  specified  level  when  the

tires are cold, and conduct initialization again.

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

When initialization of the tire pressure warning system has failed

Initialization can be completed in a few minutes. However, in the following

cases, the settings have not been recorded and the system will not oper-

ate properly. If repeated attempts to record tire inflation pressure settings

are unsuccessful, have the vehicle inspected by your Toyota dealer.

When operating the initialization of the system, the tire pressure warning

light does not flash 3 times and the setting message does not appear on

the multi-information display.

After driving for a certain period of time since the initialization has been

completed, the warning light comes on after blinking for 1 minute.

Certifications for the tire pressure warning system

For vehicles sold in the U.S.A. and Hawaii

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For vehicles sold in Canada

WARNING

When inspecting or replacing tires

Observe the following precautions to prevent accidents.

Failure to do so may cause damage to parts of the drive train as well as

dangerous  handling  characteristics,  which  may  lead  to  an  accident

resulting in death or serious injury.

Do not mix tires of different makes, models or tread patterns.

Also, do not mix tires of remarkably different treadwear.

Do not use tire sizes other than those recommended by Toyota.

Do not mix differently constructed tires (radial, 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 previously. 

When initializing the tire pressure warning system

Do not initialize the tire pressure warning system without first adjusting

the tire inflation pressure to the specified level. Otherwise, the tire pres-

sure warning light may not come on even if the tire inflation pressure is

low, or it may come on when the tire inflation pressure is actually nor-

mal.

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7-3. Do-it-yourself maintenance

NOTICE

Repairing or replacing tires, wheels, tire pressure warning valves,

transmitters and tire valve caps

When removing or fitting the wheels, tires or the tire pressure warning

valves  and  transmitters,  contact  your Toyota  dealer  as  the  tire  pres-

sure warning valves and transmitters may be damaged if not handled

correctly.

Make sure to install the tire valve caps. If the tire valve caps are not

installed,  water  could  enter  the  tire  pressure  warning  valves  and  the

tire pressure warning valves could be bound.

When replacing tire valve caps, do not use tire valve caps other than

those specified. The cap may become stuck.

To avoid damage to the tire pressure warning valves and transmit-

ters

When  a  tire  is  repaired  with  liquid  sealants,  the  tire  pressure  warning

valve  and  transmitter  may  not  operate  properly.  If  a  liquid  sealant  is

used, contact your Toyota dealer or other qualified service shop as soon

as  possible. After  use  of  liquid  sealant,  make  sure  to  replace  the  tire

pressure warning valve and transmitter when repairing or replacing the

tire. (

P. 615)

Driving on rough roads

Take particular care when driving on roads with loose surfaces or pot-

holes.

These conditions may cause losses in tire inflation pressure, reducing

the  cushioning  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.

If tire inflation pressure of each tire becomes low while driving

Do not continue driving, or your tires and/or wheels may be ruined.

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Tire inflation pressure

The  recommended  cold  tire  infla-
tion pressure and tire size are dis-
played  on  the  tire  and  loading
information label. (

P. 737)

Tire inflation pressure

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

Tire valve
Tire pressure gauge

Remove the tire valve cap.
Press the tip of the tire pressure gauge onto the tire valve.
Read the pressure using the gauge gradations.
If the tire inflation pressure is not at the recommended level, adjust
the pressure.
If you add too much air, press the center of the valve to deflate.
After  completing  the  tire  inflation  pressure  measurement  and
adjustment, apply soapy water to the valve and check for leakage.
Put the tire valve cap back on.

Tire inflation pressure check interval

You should check tire inflation pressure every two weeks, or at least once

a month.

Do not forget to check the spare.

Effects of incorrect tire inflation pressure

Driving with incorrect tire inflation pressure may result in the following:

Reduced fuel economy

Reduced driving comfort and poor handling

Reduced tire life due to wear

Reduced safety

Damage to the drive train

If a tire needs frequent inflating, have it checked by your Toyota dealer.

Inspection and adjustment procedure

1
2

1

2

3

4

5

6

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Instructions for checking tire inflation pressure

When checking tire inflation pressure, observe the following:

Check only when the tires are cold.

If  your  vehicle  has  been  parked  for  at  least  3  hours  or  has  not  been

driven for more than 1 mile or 1.5 km, you will get an accurate cold tire

inflation pressure reading.

Always use a tire pressure gauge.

It is difficult to judge if a tire is properly inflated based only on its appear-

ance.

It  is  normal  for  the  tire  inflation  pressure  to  be  higher  after  driving  as

heat is generated in the tire. Do not reduce tire inflation pressure after

driving.

Never exceed the vehicle capacity weight.

Passengers and luggage weight should be placed so that the vehicle is

balanced.

WARNING

Proper inflation is critical to save tire performance

Keep your tires properly inflated.

If the tires are not properly inflated, the following conditions may occur

which could lead to an accident resulting in death or serious injury:

Excessive wear

Uneven wear

Poor handling

Possibility of blowouts resulting from overheated tires

Air leaking from between tire and wheel

Wheel deformation and/or tire damage

Greater possibility of tire damage while driving (due to road hazards,

expansion joints, sharp edges in the road, etc.)

NOTICE

When inspecting and adjusting tire inflation pressure

Be sure to put the tire valve caps back on.

If a valve cap is not installed, dirt or moisture may get into the valve and

cause an air leak, resulting in decreased tire inflation pressure.

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Wheels

When replacing wheels, care should be taken to ensure that they are
equivalent to those removed in load capacity, diameter, rim width and
inset

*

.

Replacement wheels are available at your Toyota dealer.

*

: Conventionally referred to as “offset”.

Toyota does not recommend using the following:

Wheels of different sizes or types

Used wheels

Bent wheels that have been straightened

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 balance weights or equivalent and a plas-
tic or rubber hammer when balancing your wheels.

If  a  wheel  is  bent,  cracked  or  heavily  corroded,  it  should  be
replaced.  Otherwise,  the  tire  may  separate  from  the  wheel  or
cause a loss of handling control.

Wheel selection

Aluminum wheel precautions

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When replacing wheels

The  wheels  of  your  vehicle  are  equipped  with  tire  pressure  warning

valves  and  transmitters  that  allow  the  tire  pressure  warning  system  to

provide advance warning in the event of a loss in tire inflation pressure.

Whenever wheels are replaced, tire pressure warning valves and trans-

mitters must be installed. (

P. 615)

WARNING

When replacing wheels

Do not use wheels that are a different size from those recommended in

the Owner’s Manual, as this may result in a loss of handling control.

Never  use  an  inner  tube  in  a  leaking  wheel  which  is  designed  for  a

tubeless tire. Doing so may result in an accident, causing death or seri-

ous injury.

When installing the wheel nuts

Never use oil or grease on the wheel bolts or wheel nuts.

Oil and grease may cause the wheel nuts to be excessively tightened,

leading to bolt or disc wheel damage. In addition, the oil or grease can

cause the wheel nuts to loosen and the wheel may fall off, causing an

accident  and  resulting  in  death  or  serious  injury.  Remove  any  oil  or

grease from the wheel bolts or wheel nuts.

Use of defective wheels prohibited

Do not use cracked or deformed wheels.

Doing so could cause the tire to leak air during driving, possibly causing

an accident.

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NOTICE

Replacing tire pressure warning valves and transmitters

Because tire repair or replacement may affect the tire pressure warn-

ing valves and transmitters, make sure to have tires serviced by your

Toyota dealer or other qualified service shop. In addition, make sure to

purchase  your  tire  pressure  warning  valves  and  transmitters  at  your

Toyota dealer.

Ensure that only genuine Toyota wheels are used on your vehicle.

Tire pressure warning valves and transmitters may not work properly

with non-genuine wheels. 

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Replacing the tire

Stop the vehicle in a safe place on a hard, flat surface.

Set the parking brake.

Shift the shift position to P.

Stop the hybrid system.

When  raising  your  vehicle  with  a  jack,  position  the  jack  cor-
rectly.
Improper placement may damage your vehicle or cause injury.

Before jacking up the vehicle

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7-3. Do-it-yourself maintenance

Location of the jack and tools

Jack
Tool bag
Towing eyelet

Jack handle
Wheel nut wrench

1
2
3

4
5

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WARNING

Using the tire jack

Observe the following precautions. 

Improper use of the tire jack may cause the vehicle to suddenly fall off

the jack, leading to death or serious injury.

Only use the tire jack that comes with this vehicle for replacing a tire. 

Do  not  use  it  on  other  vehicles,  and  do  not  use  other  tire  jacks  for

replacing tires on this vehicle.

Do not raise the vehicle while someone is inside.

Do not use the tire jack for any purpose other than replacing tires or

installing and removing tire chains.

Do not put any part of your body under the vehicle while it is supported

by the jack.

Do not start the hybrid system or drive the vehicle while the vehicle is

supported by the jack.

When raising the vehicle, do not put an object on or under the jack.

Do  not  raise  the  vehicle  to  a  height  greater  than  that  required  to

replace the tire.

Use a jack stand if it is necessary to get under the vehicle.

When  lowering  the  vehicle,  make  sure  that  there  is  no-one  near  the

vehicle. If there are people nearby, warn them vocally before lowering.

When removing the jack from the storage location

The jack may be hot due to heat from the charging equipment during or

after charging. Please use gloves when handling the jack. If it is touched

with bare hands, it may result in burns.

Put the jack properly in its jack point.

(

P. 635)

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

Open the back door. (

P. 287)

Lift  the  deck  under  box  cover
up and take out the tool bag.

Open the tool bag and then take out the jack handle and wheel nut
wrench.

After using the tools, stow them by reversing the steps listed.

Taking out the tools

1

2

3

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Pull the cover to disconnect the
tabs, and remove the cover.

Turn  the  portion 

  to  loosen

the jack, and slowly take out the
jack.

Be  careful  when  handling  the

jack,  as  it  may  become  hot

depending on conditions. 

(

P. 631)

If the portion 

 can not be loos-

ened,  turn  it  using  the  jack  han-

dle.

Taking out the jack

1

2

A

A

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7-3. Do-it-yourself maintenance

Chock the tires.

Vehicles  with  the  wheel  orna-
ment: Remove the wheel orna-
ment using the wrench.

To prevent damage, cover the tip

of the wrench with a rag.

Slightly  loosen  the  wheel  nuts
(one turn).

Replacing a tire

1

Tire position

Wheel chock positions

Front

Left-hand side

Behind the rear right-hand side tire

Right-hand side

Behind the rear left-hand side tire

Rear

Left-hand side

In front of the front right-hand side tire

Right-hand side

In front of the front left-hand side tire

2

3

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Turn the tire jack portion 

 by

hand  until  the  center  of  the
recessed  portion  of  the  jack  is
in contact with the center of the
jack point.

Assemble  the  jack  handle  and
the wheel nut wrench as shown
in the illustration.

Raise the vehicle until the tire is
slightly raised off the ground.

Remove all the wheel nuts and
the tire.

When  resting  the  tire  on  the

ground, place the tire so that the

wheel  design  faces  up  to  avoid

scratching the wheel surface.

Jack point

4

A

5

6

7

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WARNING

Replacing a tire

Do not touch the disc wheels or the area around the brakes immedi-

ately after the vehicle has been driven.

After the vehicle has been driven the disc wheels and the area around

the brakes will be extremely hot. Touching these areas with hands, feet

or other body parts while changing a tire, etc. may result in burns.

Failure  to  follow  these  precautions  could  cause  the  wheel  nuts  to

loosen and the tire to fall off, resulting in death or serious injury.
• Have  the  wheel  nuts  tightened  with  a  torque  wrench  to  76  ft•lbf

(103 N•m, 10.5 kgf•m) as soon as possible after changing wheels.

• When installing a tire, only use wheel nuts that have been specifi-

cally designed for that wheel.

• If  there  are  any  cracks  or  deformations  in  the  bolt  screws,  nut

threads  or  bolt  holes  of  the  wheel,  have  the  vehicle  inspected  by

your Toyota dealer.

• When installing the wheel nuts, be sure to install the wheel nuts with

the tapered ends facing inward. (

P. 627)

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Remove any dirt or foreign mat-
ter from the wheel contact sur-
face.

If  foreign  matter  is  on  the  wheel

contact  surface,  the  wheel  nuts

may loosen while the vehicle is in

motion,  causing  the  tire  to  come

off.

Install  the  tire  and  loosely
tighten each wheel nut by hand
by  approximately  the  same
amount.

Turn  the  wheel  nuts  until  the

washers  come  into  contact  with

the disc wheel.

Lower the vehicle.

Firmly  tighten  each  wheel  nut
two  or  three  times  in  the  order
shown in the illustration.

Tightening torque:

76 ft•lbf (103 N•m, 10.5 kgf•m)

Installing the tire

1

Washer

Disc wheel

2

3

4

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

Vehicles  with  the  wheel  orna-
ment: Reinstall the wheel orna-
ment.

Align  the  cutout  of  the  wheel

ornament with the valve stem as

shown.

Stow the tire jack and all tools.

Jack point

Storing the jack

5

The  mark  indicating  the  jack  point  is

stamped  on  the  underside  of  the  vehi-

cle.

Fully insert the jack in the stowing posi-

tion,  and  turn  the  portion 

  to  secure

the jack.

6

A

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WARNING

After using the tools and jack

Before driving, make sure all the tools and jack are securely in place in

their storage location to reduce the possibility of personal injury during a

collision or sudden braking.

NOTICE

When replacing the tires

When removing or fitting the wheels, tires or the tire pressure warning

valve  and  transmitter,  contact  your Toyota  dealer  as  the  tire  pressure

warning valve and transmitter may be damaged if not handled correctly.

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7-3. Do-it-yourself maintenance

Air conditioning filter

Turn the power switch off.

Confirm that the charging connector is not connected. Also, do not use the
Remote Air Conditioning System during the procedure.

Open the front passenger’s door.

By keeping the door open, unexpected operation of the Remote Air Condi-
tioning System can be prevent. (

P. 536)

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.

The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.

Replacing the air conditioning filter

1

2

3

4

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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.

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.

5

6

1
2

7

8

9

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

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
“Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)

If air flow from the vents decreases dramatically

The filter may be clogged. Check the filter and replace if necessary.

WARNING

When replacing the air conditioning filter

Observe  the  following  precautions.  Failure  to  do  so  may  result  in  the  air
conditioning  system  operating  during  the  procedure,  possibly  resulting  in
injury.

Check that the charging connector is not connected
The air conditioning may operate due to the “Climate Prep” (

P. 157) or

“Traction Battery Cooler” (

P. 136) setting.

Do not use the Remote Air Conditioning System

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NOTICE

When using the air conditioning system

Make sure that a filter is always installed.
Using the air conditioning 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. 640). 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. 

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

Wiper insert replacement

While  securely  supporting  the
wiper  blade  connection  by
hand,  press  the  lock  knob  to
release  the  lock,  and  then  pull
out the wiper blade.

Align  the  wiper  blade  with  the
connecting portion of the wiper
arm,  and  then  slide  it  in  the
direction it was removed from.

After  installing  the  wiper  blade,
check  that  the  connection  is
locked.

When  replacing  the  wiper  insert,  perform  the  following  proce-
dure.

Windshield wiper blade removal and installation

1

2

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Pull the wiper insert until it pro-
trudes from the slit on the back
of the wiper blade.

Pull  out  the  end  of  the  wiper
insert from the slit, and then pull
out the rest of the wiper insert.

When  installing  a  new  wiper
insert, perform the procedure in
reverse.

After  installation,  check  that  the
end  of  the  wiper  insert  is  installed
all the way to the end of the cap.

Wiper insert replacement

1

2

3

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

Wiper blade and wiper insert handling

Improper handling may result in damage to the wiper blades or wiper insert. If
you have any concerns about replacing the wiper blades or wiper insert your-
self, contact your Toyota dealer.

Wiper blade cap

The cap cannot be removed, as it is integrated with the front wiper blade.

NOTICE

To prevent damage

Be careful not to damage the claws when replacing the wipers.

After the wiper blade is removed from the wiper arm, place a cloth, etc.,
between  the  windshield  and  wiper  arm  to  prevent  damage  to  the  wind-
shield.

Be sure not to pull excessively on the wiper insert.

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Electronic key battery

Flathead screwdriver

Lithium battery CR2032

Release  the  lock  and  take  out
the mechanical key.

Remove the cover.

Use  a  screwdriver  of  an  appropri-
ate  size.  Forcedly  prying  may
cause the cover damaged.
To  prevent  damage  to  the  key,
cover the tip of the screwdriver with
a rag.

Replace the battery with a new one if it is depleted.

You will need the following items:

Replacing the battery

1

2

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7-3. Do-it-yourself maintenance

Remove the depleted battery.

When  removing  the  cover,  if  the
battery cannot be seen due to the
electronic key module attaching to
the  upper  cover,  remove  the  elec-
tronic  key  module  from  the  cover
so  that  the  battery  is  visible  as
shown in the illustration.
When  removing  the  battery,  use  a
screwdriver of an appropriate size.
Insert a new battery with the “+” terminal facing up.

When installing, reverse the steps listed.

Use a CR2032 lithium battery

Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.

Replace only with the same or equivalent type recommended by the manu-
facturer.

Dispose of used batteries according to the local laws.

If the electronic key battery is depleted

The following symptoms may occur:

The smart key system and wireless remote control will not function properly.

The operational range will be reduced.

3

4

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WARNING

Battery precautions

Observe the following precautions. 
Failure to do so may result in death or serious injury.

Do not swallow the battery. Doing so may cause chemical burns.

A coin battery or button battery is used in the electronic key. If a battery is
swallowed, it may cause severe chemical burns in as little as 2 hours and
may result in death or serious injury.

Keep away new and removed batteries from children.

If the cover cannot be firmly closed, stop using the electronic key and stow
the key in the place where children cannot reach, and then contact your
Toyota dealer.

If  you  accidentally  swallow  a  battery  or  put  a  battery  into  a  part  of  your
body, get emergency medical attention immediately.

To prevent battery explosion or leakage of flammable liquid or gas

Replace the battery with a new battery of the same type. If a wrong type of
battery is used, it may explode.

Do not expose batteries to extremely low pressure due to high altitude or
extremely high temperatures.

Do not burn, break or cut a battery.

NOTICE

For normal operation after replacing the battery

Observe the following precautions to prevent accidents:

Always work with dry hands.
Moisture may cause the battery to rust.

Do not touch or move any other component inside the remote control.

Do not bend either of the battery terminals.

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

Checking and replacing fuses

Turn the power switch off.

Confirm that the charging connector is not connected. Also, do not use the
Remote Air Conditioning System during the procedure.

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, check and replace the fuses as nec-
essary.

1

2

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Remove the fuse.
Only  type  A  fuse  can  be
removed using the pullout tool.

Check if the fuse is blown.

Normal fuse
Blown fuse

Replace the blown fuse with a new fuse of an appropriate amperage rat-
ing. The amperage rating can be found on the fuse box lid.

3

4

1
2

Type A

Type B

Type C

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

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. 655)

If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.

If there is an overload in a circuit

The fuses are designed to blow, protecting the wiring harness from damage.

When replacing light bulbs

Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload,  nongenuine  parts  or  parts  not  designed  for  this  vehicle  may  be
unusable.

WARNING

To prevent system breakdowns and vehicle fire

Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.

Never use a fuse of a higher amperage rating than that indicated, 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.

NOTICE

Before replacing fuses

Have  the  cause  of  electrical  overload  determined  and  repaired  by  your
Toyota dealer as soon as possible.

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Headlight aim

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.
Sit in the driver’s seat.
Bounce the vehicle several times.

Vertical movement adjusting bolts

1
2

Before checking the headlight aim

1

2

3

4

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

Using  a  Phillips-head  screw-
driver, turn bolt A in either direc-
tion.

Remember  the  turning  direction
and the number of turns.

Turn bolt B the same number of
turns and in the same direction
as step 

.

If the headlight cannot be adjusted
using this procedure, take the vehi-
cle to your Toyota dealer to adjust
the headlight aim.

Adjusting the headlight aim

1

2

1

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Light bulbs

Check the wattage of the light bulb to be replaced. (

P. 738)

Back-up light

You may replace the following bulbs by yourself. The difficulty
level of replacement varies depending on the bulb. If necessary
bulb  replacement  seems  difficult  to  perform,  contact  your
Toyota dealer.
For more information about replacing other light bulbs, contact
your Toyota dealer.

Preparing for light bulb replacement

Bulb locations

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Back-up lights

Remove the 2 clips that secure the lower portion of the cover at
the back of the rear tire.
Pull out the center portion of
the clip to unlock using a flat-
head  screwdriver,  and  then
pull it to remove.

Remove the 3 clips that secure the upper portion of the cover.

Turn the clip counterclockwise to remove.
Pull out the center portion of the clip to unlock using a flathead
screwdriver, and then pull it to remove.
Pull out the center portion of the clip to unlock using a flathead
screwdriver, and then pull it to remove.

Replacing light bulbs

1

2

1
2

3

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Remove  the  cover  end  and
pull  the  cover  toward  the
front of the vehicle to make a
gap  between  the  cover  and
rear bumper.

Remove the clip inside of the cover, and remove the cover.
Pull out the center portion of
the clip to unlock using a flat-
head  screwdriver,  and  then
pull it to remove.

Turn  the  bulb  base  counter-
clockwise,  and  then  remove
the light bulb.

To remove the light bulb, insert a
hand from the gap between the
rear tire and rear bumper.

3

4

5

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Install  a  new  light  bulb  then
install  the  bulb  base  to  the
light  unit  by  inserting  it  and
turning  the  bulb  base  clock-
wise.

Reinstall the cover to the its original position, and attach the clip
inside of the cover.
Attach  the  clip  on  the  cover,
then press the center portion
of the clip to lock.

Reinsert the cover end to the
rear bumper.

Make sure to secure the 2 tabs
on the cover end.

6

7

8

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Reinsert the 3 clips to the upper portion of the cover.

Turn the clip clockwise to lock.
Attach the clip on the cover, and then press the center portion
of the clip to lock.
Attach the clip on the cover, and then press the center portion
of the clip to lock.

Reinsert the 2 clips to the lower portion of the cover.
Attach  the  clip  on  the  cover,
and  then  press  the  center
portion of the clip to lock.

9

1
2

3

10

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PRIUS PRIME_OM_OM47D71U_(U)

7-3. Do-it-yourself maintenance

Replacing the following bulbs

If any of the lights listed below has burnt out, have it replaced by
your Toyota dealer.

Headlights and daytime running lights

Front side marker lights

Parking lights

Fog lights (if equipped)

LED accent lights (if equipped)

Front turn signal lights

Rear turn signal lights

Rear side marker lights

Tail lights

Stop lights

High mounted stoplight

License plate lights

LED lights

The lights other than the back-up lights each consist of a number of LEDs. If
any of the LEDs burn out, take your vehicle to your Toyota dealer to have the
light replaced.

Condensation build-up on the inside of the lens

Temporary condensation build-up on the inside of the lens does not indicate a
malfunction. Contact your Toyota dealer for more information in the following
situations:

Large drops of water have built up on the inside of the lens.

Water has built up inside the light.

When replacing light bulbs

P. 652

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WARNING

Replacing light bulbs

Be sure to stop the hybrid system and turn off the lights. Do not attempt to
replace the bulb immediately after turning off the lights. 
The bulbs become very hot and may cause burns.

Do not touch the glass portion of the light bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.

Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the light unit. This may
damage the back-up lights or cause condensation to build up on the lens.

Do  not  attempt  to  repair  or  disassemble  light  bulbs,  connectors,  electric
circuits or component parts.
Doing so may result in death or serious injury due to electric shock.

Do not replace the right-hand back-up light immediately after the vehicle
has been driven.
After the vehicle has been driven the exhaust pipe will be extremely hot,
and touching the exhaust pipe may result in burns.

Use gloves and other protection to prevent injuries on vehicle parts.
There is the danger of being injured on the edges of parts.

To prevent damage or fire 

Make sure bulbs are fully seated and locked. 

Check the wattage of the bulb before installing to prevent heat damage.

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