2021 TOYOTA PRIUS fuel

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PRIUS_OM_OM47E09U_(U)
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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
4-1. Before driving Driving the vehicle ............. 228
Cargo and luggage............ 239
Vehicle load limits ............. 242
Trailer towing..................... 243
Dinghy towing.................... 244
4-2. Driving procedures Power (ignition) switch ...... 245
EV drive mode................... 252
Hybrid transmission........... 255
Turn signal lever................ 261
Parking brake .................... 262
4-3. Operating the lights and wipers
Headlight switch ................ 263
AHB (Automatic High Beam) ............................. 268
Fog light switch ................. 273
Windshield wipers and washer ............................ 275
Rear window wiper and washer ............................ 281 4-4. Refueling
Opening the fuel tank cap................................... 283
4-5. Using the driving support systems
Toyota Safety Sense 2.0 ... 288
PCS (Pre-Collision System) ........................... 296
LTA (Lane Tracing Assist).............................. 307
RSA (Road Sign Assist) .... 322
Dynamic radar cruise control with full-speed
range ............................... 326
Cruise control .................... 342
Driving mode select switch .............................. 347
BSM (Blind Spot Monitor)......... 349
• The Blind Spot Monitor
function.......................... 354
• The Rear Cross Traffic
Alert function ................. 357
Intuitive parking assist ....... 362
Parking Support Brake function ............................ 373
S-APGS (Simple Advanced Parking
Guidance System) ........... 386
Driving assist systems ....... 420
4-6. Driving tips Hybrid vehicle driving tips ................................... 427
Winter driving tips .............. 430
4Driving

TABLE OF CONTENTS6
PRIUS_OM_OM47E09U_(U)8-1. Specifications
Maintenance data (fuel, oil level, etc.) .......... 664
Fuel information ................ 675
Tire information ................. 678
8-2. Customization Customizable features ...... 690
8-3. Initialization Items to initialize................ 701 Reporting safety defects
for U.S. owners ........................ 704
Seat belt instructions for Canadian owners
(in French)................................ 705
SRS airbag instructions for Canadian owners
(in French)................................ 707
Headlight aim instructions for Canadian owners
(in French)................................ 716
What to do if... (Troubleshooting) ..................... 720
Alphabetical index ...................... 724
8Vehicle specifications9For owners
Index
For vehicles with the navigation system, refer to the “NAVIGATI ON
SYSTEM OWNER’S MANUAL” for information regarding the equip-
ment listed below.
• Navigation system
• Audio/visual system
• Rear view monitor system• Hands-free system (for cellular phone)
For vehicles with the multimedia system, refer to the “MULTIMED IA
OWNER’S MANUAL” for information regarding the equipment listed
below.
• Audio/visual system
• Rear view monitor system• Hands-free system (for cellular phone)

8
PRIUS_OM_OM47E09U_(U)
For your infor mation
Please note that this manual applies to all models and explains all equipment,
including options. Therefore, you may find some explanations fo r equipment
not installed on your vehicle.
All specifications provided in this manual are current at the t ime of printing.
However, because of the Toyota policy of continual product improvement, we
reserve the right to make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustrat ions may differ
from your vehicle in terms of color and equipment.
Approximately five hours after the hybrid system is turned off, you may hear
sound coming from under the vehicle for several minutes. This i s the sound of
a fuel evaporation leakage check and, it does not indicate a ma lfunction.
A wide variety of non-genuine spare parts and accessories for T oyota vehi-
cles are currently available in the market. You should know tha t Toyota does
not warrant these products and is not responsible for their per formance,
repair, or replacement, or for any damage they may cause to, or adverse
effect they may have on, your Toyota vehicle.
This vehicle should not be modified with non-genuine Toyota pro ducts. Modi-
fication with non-genuine Toyota products could affect its perf ormance, safety
or durability, and may even violate governmental regulations. In addition,
damage or performance problems resulting from the modification may not be
covered under warranty.
Main Owner’s Manual
Noise from under vehicle after turning off the hybrid system
Accessories, spare parts and m odification of your Toyota

PRIUS_OM_OM47E09U_(U)
9
The installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as:
● Hybrid system
● Multiport fuel injection system/sequential multiport fuel injection system
● Toyota Safety Sense 2.0
● Cruise control system
● Anti-lock brake system
● SRS airbag system
● Seat belt pretensioner system
Be sure to check with your Toyota dealer for precautionary meas ures or spe-
cial instructions regarding instal lation of a mobile two-way radio system.
High voltage parts and cables on the hybrid vehicles emit appro ximately the
same amount of electromagnetic waves as the conventional gasoli ne pow-
ered vehicles or home electronic appliances despite of their el ectromagnetic
shielding.
Unwanted noise may occur in the reception of the mobile two-way radio.
Installation of a mobile two-way radio system

17Pictorial index
PRIUS_OM_OM47E09U_(U)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 275
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 430
Precautions against car wash (vehicles with rain-sensing
windshield wipers) . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . P. 498
Replacing the wiper insert . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 556
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 283
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 283
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 667
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 532
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 672
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 430
Checking/rotation/tire pressur e warning system . . . . . . . . .P. 532
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . P. 611, 631
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 515
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 515
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 668
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 656
Headlights/daytime running lights . . . . . . . . . . . . . . . . . . . . P. 263
Parking lights/front side marker lights/
LED accent lights
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 263
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 273
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 261
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 263
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 263
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 255
Rear side maker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 263
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Light bulbs of the exterior lights for driving
(Replacing method: P. 568, Watts: P. 674)
*: If equipped
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19Pictorial index
PRIUS_OM_OM47E09U_(U)Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 124
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 124
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 127
When the warning messages are displayed . . . . . . . . . . . . . . P. 603
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 262
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 262
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 430
Warning buzzer . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . P. 262
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 261
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 263
Headlights/parking lights/tail lights/
daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 263
Fog lights
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 273
Windshield wipers and washer switch . . . . . . . . . . . . . . . . P. 275
Rear window wiper and washer switch
*1 . . . . . . . . . . . . . . P. 281
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 275, 281
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 530
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . P. 580
Fuel filler door opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 285
Hood lock release lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 515
Tilt and telescopic steering lock release lever . . . . . . . . . . P. 212
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . P. 436, 446
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 436, 447
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 440, 450
Audio system
*1, 2
*1: If equipped
*2: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.
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431-1. For safe use
PRIUS_OM_OM47E09U_(U)
1
For safety and security
■If the SRS airbags deploy (inflate)
●Slight abrasions, burns, bruising etc., may be sustained from S RS airbags,
due to the extremely high speed deployment (inflation) by hot g ases.
● A loud noise and white powder will be emitted.
● Parts of the airbag module (steering wheel hub, airbag cover an d inflator) as
well as the front seats, parts of the front and rear pillars, and roof side rails,
may be hot for several minutes. The airbag itself may also be h ot.
● The windshield may crack.
● The hybrid system will be stopped and fuel supply to the engine will be
stopped. ( P. 89)
● The emergency flashers will turn on automatically. ( P. 580)
● For Safety Connect subscribers, if any of the following situations occur, the
system is designed to send an emergency call to the response center, noti-
fying them of the vehicle’s location (without needing to push t he “SOS” but-
ton) and an agent will attempt to speak with the occupants to a scertain the
level of emergency and assistance required. If the occupants are unable to
communicate, the agent automatically treats the call as an emer gency and
helps to dispatch the necessary emergency services. ( P. 76)
• An SRS airbag is deployed.
• A seat belt pretensioner is activated.
• The vehicle is involved in a severe rear-end collision.
■ SRS airbag deployment condi tions (SRS front airbags)
● The SRS front airbags will deploy in the event of an impact tha t exceeds the
set threshold level (the level of force corresponding to an app roximately 12 -
18 mph [20 - 30 km/h] frontal collision with a fixed wall that does not move or
deform).
However, this threshold velocity will be considerably higher in the following
situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole,
which can move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in
which the front of the vehicle “underrides”, or goes under, the bed of a
truck
● Depending on the type of collision, it is possible that only th e seat belt pre-
tensioners will activate.
● The SRS front airbags for the front passenger will not activate if there is no
passenger sitting in the front passenger seat. However, the SRS front air-
bags for the front passenger may deploy if luggage is put in the seat, even if
the seat is unoccupied.
● The SRS seat cushion airbag on the front passenger seat will not operate if
the occupant is not wearing a seat belt.

801-3. Emergency assistance
PRIUS_OM_OM47E09U_(U)■
Enhanced Roadside Assistance
Enhanced Roadside As
sistance adds GPS data to the already
included warranty-based Toyota roadside service.
Subscribers can press the “SOS” button to reach a Safety Connec t
response-center agent, who can he lp with a wide range of needs,
such as: towing, flat tire, fuel delivery, etc. For a description of the
Roadside Assistance services an d their limitations, please see the
Safety Connect Terms and Conditions, which are available at
Toyota.com in the United States, Toyotapr.com in Puerto Rico an d
Toyota.ca in Canada.
Important! Read this informatio n before using Safety Connect.
■Exposure to radio frequency signals
The Safety Connect system installed in your vehicle is a low-po wer
radio transmitter and receiver. I t receives and also sends out radio
frequency (RF) signals.
In August 1996, the Federal Communications Commission (FCC)
adopted RF exposure guidelines with safety levels for mobile wi re-
less phones. Those guidelines are consistent with the safety stan-
dards previously set by the following U.S. and international
standards bodies.
● ANSI (American National Stand ards Institute) C95.1 [1992]
● NCRP (National Council on Radi ation Protection and Measure-
ment) Report 86 [1986]
● ICNIRP (International Commission on Non-Ionizing Radiation
Protection) [1996]
Those standards were based on comprehensive and periodic eval-
uations of the relevant scienti fic literature. Over 120 scientists, engi-
neers, and physicians from unive rsities, and government health
agencies and industries reviewed the available body of research to
develop the ANSI Standard (C95.1).
The design of Safety Connect complies with the FCC guidelines i n
addition to those standards.
Safety information for Safety Connect