key TOYOTA PRIUS 2021 Owners Manual (in English)

TABLE OF CONTENTS2
PRIUS_OM_OM47E09U_(U)For your information....................... 8
Reading this manual .................... 14
How to search .............................. 15
Pictorial index .............................. 16
1-1. For safe use
Before driving ...................... 26
For safe driving ................... 28
Seat belts ............................ 30
SRS airbags ........................ 35
Front passenger occupant classification system ......... 49
Exhaust gas precautions ..... 54
1-2. Child safety Riding with children ............. 55
Child restraint systems ........ 56
1-3. Emergency assistance Safety Connect.................... 76
1-4. Hybrid system Hybrid system features ....... 84
Hybrid system precautions ....................... 88
1-5. Theft deterrent system Immobilizer system ............. 95 2. Instrument cluster
Combination meter .............. 98
Warning lights and indicators ......................... 107
Main display....................... 115
Multi-information display ............................. 124
Head-up display................. 158
Energy monitor/ consumption screen
(vehicles with 7-inch
display) ............................ 165
Energy monitor/ consumption screen
(vehicles with
11.6-inch display) ............ 172
3-1. Key information Keys................................... 180
3-2. Opening, closing and locking the doors
Side doors ......................... 185
Back door .......................... 191
Smart key system .............. 196
3-3. Adjusting the seats Front seats......................... 204
Rear seats ......................... 206
Head restraints .................. 209
1For safety and security
2Instrument cluster
3Operation of each
component

5
1
9 8
7
6 4 3
2
PRIUS_OM_OM47E09U_(U)
5
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 512
Hood.................................. 515
Positioning a floor jack ...... 517
Engine compartment ......... 518
Tires .................................. 532
Tire inflation pressure........ 542
Wheels .............................. 545
Air conditioning filter .......... 548
Cleaning the hybrid battery (traction battery) air intake
vent and filter .................. 551
Wiper insert replacement .................... 556
Electronic key battery ........ 560
Checking and replacing fuses ............................... 563
Headlight aim .................... 566
Light bulbs ......................... 568
7-1. Essential information Emergency flashers .......... 580
If your vehicle has to be stopped in an
emergency ...................... 581
If the vehicle is trapped in rising water...................... 582 7-2. Steps to take in an
emergency
If your vehicle needs to be towed .......................... 584
If you think something is wrong............................... 591
If a warning light turns on or a warning buzzer
sounds ............................. 592
If a warning message is displayed ......................... 603
If you have a flat tire (vehicles without
spare tire) ........................ 611
If you have a flat tire (vehicles with
spare tire) ........................ 631
If the hybrid system will not start ........................... 645
If the electronic key does not operate properly ........ 647
If the 12-volt battery is discharged ....................... 650
If your vehicle overheats.... 656
If the vehicle becomes stuck ................................ 661
7When trouble arises

12
PRIUS_OM_OM47E09U_(U)The SRS airbag and seat belt pretensioner devices in your Toyot
a contain
explosive chemicals. If the vehicle is scrapped with the airbag s and seat belt
pretensioners left as they are, this may cause an accident such as fire. Be
sure to have the systems of the SRS airbag and seat belt preten sioner
removed and disposed of by a qualified service shop or by your Toyota dealer
before you scrap your vehicle.
Special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These compo-
nents may include airbag, seat belt pretensioners, and wireless remote con-
trol batteries.
Scrapping of your Toyota
Perchlorate Material
WARNING
■ General precautions while driving
Driving under the influence: Never drive your vehicle when unde r the influ-
ence of alcohol or drugs that have impaired your ability to operate your vehi-
cle. Alcohol and certain drugs delay reaction time, impair judg ment and
reduce coordination, which could lead to an accident that could result in
death or serious injury.
Defensive driving: Always drive defensively. Anticipate mistake s that other
drivers or pedestrians might make and be ready to avoid acciden ts.
Driver distraction: Always give your full attention to driving. Anything that
distracts the driver, such as adjusting controls, talking on a cellular phone or
reading can result in a collision with resulting death or serio us injury to you,
your occupants or others.
■ General precaution regar ding children’s safety
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by p laying with
the windows, the moon roof, or other features of the vehicle. In addition,
heat build-up or extremely cold temperatures inside the vehicle can be fatal
to children.

16Pictorial index
PRIUS_OM_OM47E09U_(U)
Pictorial index
■
Exterior
The shape of the headlights may differ depending on the grade, etc.
( P. 568)
Side doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 185
Locking/unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 185
Opening/closing the side windows. . . . . . . . . . . . . . . . . . . . . . P. 218
Locking/unlocking by using the mechanical key . . . . . . . . . . . P. 647
Warning lights/warning messages . . . . . . . . . . . . . . . . . . P. 594, 603
Back door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 191
Opening from outside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 191
Warning lights/warning messages . . . . . . . . . . . . . . . . . . P. 594, 603
Outside rear view mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
Adjusting the mirror angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
Folding the mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 216
Defogging the mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 440, 450
1
2
3

551-2. Child safety
PRIUS_OM_OM47E09U_(U)
1
For safety and security
Riding with children
●It is recommended that children sit in the rear seats to avoid acci-
dental contact wit h the shift lever, wiper switch etc.
● Use the rear door child-protector lock or the window lock switc h to
avoid children opening the door while driving or operating the
power window accidentally. ( P. 188, 218)
● Do not let small children operate equipment which may catch or
pinch body parts, such as the power window, hood, back door,
seats etc.
Observe the following precautions when children are in the vehi -
cle.
Use a child restraint system app ropriate for the child, until the
child becomes large enough to properly wear the vehicle’s seat
belt.
WARNING
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by p laying with
the side windows, the moon roof (if equipped) or other features of the vehi-
cle. In addition, heat build-up or extremely cold temperatures inside the
vehicle can be fatal to children.

951-5. Theft deterrent system
PRIUS_OM_OM47E09U_(U)
1
For safety and security
Immobilizer system
The indicator light flashes after
the power switch has been turned
off to indicate that the system is
operating.
The indicator light stops flashing
after the power switch has been
turned to ACCESSORY or ON
mode to indicate that the system
has been canceled.
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■ Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic ob ject
● If the key is in close proximity to or touching a key registered to the security
system (key with a built-in transponder chip) of another vehicle
The vehicle’s keys ha ve built-in transponder chips that prevent
the hybrid system from starting if a key has not been previousl y
registered in the vehic le’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehi-
cle. This system is designed to help prevent vehicle theft but does not
guarantee absolute security against all vehicle thefts.

PRIUS_OM_OM47E09U_(U)
1132. Instrument cluster
2
Instrument cluster
■Main display and multi-information display
*: The displayed indicator changes according to the current driving mode.
■
Multi-information display (symbol display*)
*: These symbols are displayed along with a message. Also, the sy mbol dis-
plays listed here are only an example, and different symbols ma y be dis-
played according to the contents of the multi-information displ ay.
Indicators and symbols displayed on the display
IndicatorsPages
EV drive mode indicator P. 252
*“ECO MODE” indicator P. 347
*“PWR MODE” indicatorP. 347
EV Indicator P. 130
Symbol displayPages
Smart key system P. 245
Brake Override System/Drive-Start
Control/
Parking Support Brake function (if
equipped) P. 596
LTA (Lane Tracing Assist) (if equipped)P. 320
P. 320
Low engine oil pressure warning
(Canada only) P. 596

179
PRIUS_OM_OM47E09U_(U)
3
Operation of
each component
3-1. Key information
Keys .................................. 180
3-2. Opening, closing and locking the doors
Side doors ......................... 185
Back door .......................... 191
Smart key system ............. 196
3-3. Adjusting the seats Front seats ........................ 204
Rear seats......................... 206
Head restraints.................. 209
3-4. Adjusting the steering wheel and mirrors
Steering wheel .................. 212
Inside rear view mirror ...... 214
Outside rear view mirrors ............................. 216
3-5. Opening and closing the windows and moon roof
Power windows ................. 218
Moon roof .......................... 223

180
PRIUS_OM_OM47E09U_(U)
3-1. Key information
Keys
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart key system (P. 196)
• Operating the wireless remote control function
Mechanical keys
Key number plate
Locks all the doors ( P. 1 8 6 )
Unlocks all the doors ( P. 1 8 6 )
Opens the side windows and
moon roof (if equipped)
*
(  P. 186)
Sounds the alarm ( P. 181)
*: This setting must be customized at your Toyota dealer.
The keys
1
2
3
Wireless remote control
1
2
3
4

PRIUS_OM_OM47E09U_(U)
1813-1. Key information
3
Operation of each component
To take out the mechanical key,
slide the release lever and take
the key out.
The mechanical key can only be
inserted in one direction, as the
key only has grooves on one side.
If the key cannot be inserted in a
lock cylinder, turn it over and re-
attempt to insert it.
After using the mechanical key, store it in the electronic key. Carry the
mechanical key together with the electronic key. If the electro nic key bat-
tery is depleted or the entry function does not operate properl y, you will
need the mechanical key. ( P. 647)
■Panic mode
■ If you lose your mechanical keys
New genuine mechanical keys can be made by your Toyota dealer u sing
another mechanical key and the key number stamped on your key n umber
plate. Keep the plate in a safe place such as your wallet, not in the vehicle.
■ When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press
any buttons on the electronic key while inside the aircraft cab in. If you are
carrying an electronic key in your bag etc., ensure that the bu ttons are not
likely to be pressed accidentally. Pressing a button may cause the electronic
key to emit radio waves that could interfere with the operation of the aircraft.
Using the mechanical key
Release
lever
When is pressed for longer than
about one second, an alarm will sound
intermittently and the vehicle lights will
flash to deter any person from trying to
break into or damage your vehicle.
To stop the alarm, press any button on the
electronic key.