
PRIUS_OM_OM47E09U_(U)
4855-4. Using the other interior features
5
Interior features
NOTICE
■Conditions in which the function may not operate correctly
In the following conditions, it may not operate correctly
● The portable device is fully charged
● There is foreign matter between the charge area and portable de vice
● The temperature of the portable device gets higher from charging
● The charging surface of the portable device is facing up
● The  placement  of  the  portable  device  is  out  of  alignment  with  t he  charge
area
● Near a TV tower, electric power plant, gas station, radio stati on, large dis-
play, airport or other facility that generates strong radio wav es or electrical
noise
● When  the  electronic  key  is  in  contact  with,  or  is  covered  by  th e  following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
● When other wireless keys (that emit radio waves) are being used nearby
In addition, excluding the above-mentioned, when the charger do es not per-
form  normally  or  the  operation  display  lamp  is  flashing  continu ously,  it  is
considered that the wireless charger is malfunctioning. Contact  your Toyota
dealer.
■ To prevent failure or damage to data
● Do  not  bring  magnetic  cards,  such  as  credit  cards,  or  magnetic  recording
media, etc., close to the charger while charging, otherwise, da ta may dis-
appear  under  the  influence  of  magnetism.  Also,  do  not  bring  pre cision
instruments  such  as  wrist  watches,  etc.,  close  to  the  charger,  as  such
objects may break.
● Do  not  leave  portable  devices  in  the  cabin.  The  temperature  ins ide  the
cabin  may  become  high,  when  under  the  sun,  and  cause  damage  to  the
device.
■ To prevent 12-volt b attery discharge
When  the  hybrid  system  is  stopped,  do  not  use  the  wireless  char ger  for  a
long time. 

PRIUS_OM_OM47E09U_(U)
5136-3. Do-it-yourself maintenance
6
Maintenance and care
Tire inflation 
pressure 
( P. 542)• Tire pressure gauge
• Compressed air source
Washer fluid
( P.   5 3 0 )• Water  or  washer  fluid  containing  antifreeze  (for  win-
ter use)
• Funnel (used only for adding water or washer fluid)
WARNING
The  engine  compartment  contains  many  mechanisms  and  fluids  that may
move suddenly, become hot, or become electrically 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 displa y 
( P. 116) 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 r ags, 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 c ontains poi-
sonous and corrosive sulfuric acid.
■ 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. 524)
■ Safety glasses
Wear  safety  glasses  to  prevent  flying  or  falling  material,  fluid  spray,  etc.
from getting in your eyes.
ItemsParts and tools 

PRIUS_OM_OM47E09U_(U)
5196-3. Do-it-yourself maintenance
6
Maintenance and care
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  th e
oil level.
Low
Normal
Excessive
Wipe the dipstick and reinsert it fully.
Engine oil
1
2
3
4
5
1
2
3
6 
![TOYOTA PRIUS 2021  Owners Manual (in English) 668
PRIUS_OM_OM47E09U_(U)
8-1. Specifications
■Oil capacity (Drain and refill [Reference*])
*: The engine oil  capacity is a reference  quantity to be  used when changing
the  engine  oil.  Park  th TOYOTA PRIUS 2021  Owners Manual (in English) 668
PRIUS_OM_OM47E09U_(U)
8-1. Specifications
■Oil capacity (Drain and refill [Reference*])
*: The engine oil  capacity is a reference  quantity to be  used when changing
the  engine  oil.  Park  th](/manual-img/14/42657/w960_42657-667.png)
668
PRIUS_OM_OM47E09U_(U)
8-1. Specifications
■Oil capacity (Drain and refill [Reference*])
*: The engine oil  capacity is a reference  quantity to be  used when changing
the  engine  oil.  Park  the  vehicle  on  level  ground.  After  warming   up  the
engine  and  turning  off  the  hybrid  system,  wait  more  than  5  minu tes,  and
check the oil level on the dipstick.
■
Engine oil selection
“Toyota  Genuine  Motor  Oil”  is  used  in  your  Toyota  vehicle.  Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to sat isfy
the following grade and viscosity.
Oil grade: API SN/RC multigrade engine oil
Recommended viscosity: SAE 0W-16
SAE  0W-16  is  the  best  choice
for  good  fuel  economy  and
good starting in cold weather.
If  SAE  0W-16  is  not  available,
SAE  0W-20  oil  may  be  used.
However,  it  must  be  replaced
with  SAE  0W-16  at  the  next  oil
change.
Oil viscosity (0W-16 is expl ained here as an example):
• The  0W  in  0W-16  indicates  the  characteristic  of  the  oil  which allows cold startability. Oils wi th a lower value before the W allow
for easier starting of the engine in cold weather.
• The  16  in  0W-16  indicates  the  vi scosity  characteristic  of  the oil
when the oil is at high temperature. An oil with a higher visco sity
(one  with  a  higher  value)  may  be  better  suited  if  the  vehicle  i s
operated at high speeds, or un der extreme load conditions.
Lubrication system
With filter4.4 qt. (4.2 L, 3.7 Imp.qt.)
Without filter4.1 qt. (3.9 L, 3.4 Imp.qt.)
Outside temperature 

733Alphabetical index
PRIUS_OM_OM47E09U_(U)
Multi-information display ........ 124Air conditioning system 
settings screen ................... 146
Audio system-linked  display ................................ 145
Display contents ................... 124
Drive information................... 126
Driving assist system  information.......................... 150
Dynamic radar cruise control  with full-speed range .......... 326
Energy monitor ..................... 127
Intuitive parking assist .......... 363
Language .............................. 153
LTA (Lane Tracing Assist) .... 316
Navigation system-linked  display ................................ 145
Parking Support Brake  function ............................... 379
Pre-collision warning............. 297
RCTA detection screen......... 349
RSA (Road Sign Assist)........ 323
S-APGS (Simple Advanced 
Parking Guidance 
System) .............................. 390
Settings display..................... 151
Warning message display..... 150
Navigation system
*2
Noise from under vehicle............ 8
Odometer.................................. 119
Oil Engine oil .............................. 668 Opener
Back door ............................. 191
Fuel filler door ....................... 285
Garage door ......................... 488
Hood ..................................... 515
Outside rear view mirrors ....... 216 Adjustment............................ 216
BSM (Blind Spot Monitor) ..... 349
Folding .................................. 216
Outside rear view mirror defoggers ................... 440, 450
Outside temperature  display.................................... 116
Overhead console ................... 465
Overheating ............................. 656
P position switch ..................... 256
Panic mode .............................. 181
Parking assist sensors 
Intuitive parking assist .......... 362
Parking Support Brake function............................... 373
S-APGS (Simple Advanced  Parking Guidance 
System) .............................. 386
Parking brake........................... 262
Operation .............................. 262
Parking brake engaged warning buzzer ................... 262
Parking lights........................... 263 Light switch ........................... 263
Replacing light bulbs .... 570, 577
Wattage ................................ 674
Parking lock ............................. 256
PCS (Pre-Collision System).... 296 Enabling/disabling the system .......... ...................... 300
Function ................................ 296
Warning light......................... 593
N
O
P
*1: Refer to “MULTIMEDIA OWNER’S MANUAL”.
*2: Refer to “NAVIGATION S YSTEM OWNER’S MANUAL”. 

739Alphabetical index
PRIUS_OM_OM47E09U_(U)
Warning lights.......................... 107ABS....................................... 593
Brake Override System......... 596
Brake system ....... ................. 592
Charging system ................... 592
Drive-Start Control ................ 596
Driver’s seat belt reminder  light ..................................... 595
Electronic engine control  system ......... ....................... 592
Electric power steering 
system ......... ....................... 593
Front passenger’s seat belt  reminder light...................... 595
High coolant temperature ..... 594
Low engine oil pressure ........ 592
Low fuel level ........................ 594
Malfunction indicator lamp .... 592
Master warning light.............. 595
Open door ............................. 594
Parking Support Brake  function ............................... 596
PCS ...................................... 593
PKSB OFF indicator ............. 594
Rear passengers’ seat belt 
reminder light...................... 595
Seat belt reminder light ......... 595
Slip indicator ......................... 594
SRS ...................................... 593
Tire pressure......................... 595 Warning messages.................. 603
Warning reflector storage 
space ...................................... 470
Washer ............................. 275, 281 Checking............................... 530
Preparing and checking 
before winter ...................... 430
Switch ........................... 275, 281
Washing and waxing ............... 496
Water-repellent coating .......... 497
Weights .................................... 664 Cargo capacity...................... 242
Load limits ............................ 664
Wheels ...................................... 545
Replacing wheels ................. 631
Size....................................... 672
Window glasses ...................... 218
Window lock switch ................ 218
Windows Power windows..................... 218
Rear window
defogger ..................... 440, 450
Washer ......................... 275, 281
Windshield wipers ................... 275 Handling the wiper arms ....... 501
Rain-sensing windshield wipers ................................. 277
Replacing the wiper insert .... 556
Winter driving tips ................... 430
Wiper insert replacement ....... 556
Wireless charger ..................... 477
Wireless remote control ......... 180 Battery-Saving Function ....... 198
Locking/Unlocking ................ 186
Panic mode........................... 181
Replacing the battery............ 560
WMA disc
*1
*1: Refer to “MULTIMEDIA OWNER’S MANUAL”.
*2: Refer to “NAVIGATION S YSTEM OWNER’S MANUAL”.