2021 TOYOTA PRIUS brake

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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

PRIUS_OM_OM47E09U_(U)
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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

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PRIUS_OM_OM47E09U_(U)The vehicle is equipped with sophisticated computers that will
record certain
data, such as:
• Engine speed/Electric motor speed (traction motor speed)
• Accelerator status
• Brake status
• Vehicle speed
• Operation status of the driving assist systems
• Images from the cameras Your vehicle is equipped with cameras. Contact your Toyota deal er for the
location of recording cameras.
• Hybrid battery (traction battery) status
The recorded data varies according to the vehicle grade level and options
with which it is equipped.
These computers do not record conversations or sounds, and only record
images outside of the vehicle in certain situations.
●Data Transmission
Your vehicle may transmit the data recorded in these computers to Toyota
without notification to you.
●Data usage
Toyota may use the data recorded in this computer to diagnose m alfunc-
tions, conduct research and development, and improve quality.
Toyota will not disclose the recorded data to a third party exc ept:
• With the consent of the vehicle owner or with the consent of the lessee if the vehicle is leased
• In response to an official request by the police, a court of l aw or a govern-
ment agency
• For use by Toyota in a lawsuit
• For research purposes where the data is not tied to a specific vehicle or
vehicle owner
●Recorded image information can be erased by your Toyota dealer.
The image recording function can be disabled. However, if the f unction is
disabled, data from when the system operates will not be available.
●To learn more about the vehicle data collected, used and shared by Toy-
ota, please visit www.toyota.com/privacyvts/
.
If your Toyota has Safety Connect and if you have subscribed to those ser-
vices, please refer to the Safety Connect Telematics Subscription Service
Agreement for information on data collected and its usage.
●To learn more about the vehicle data collected, used and shared by Toy-
ota, please visit www.toyota.com/privacyvts/
.
Vehicle data recording
Usage of data collected thr ough Safety Connect (U.S.mainland
only)

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This vehicle is equipped with an event data recorder (EDR). The main pur-
pose of an EDR is to record, in certain crash or near crash-lik e situations,
such as an air bag deployment or hitting a road obstacle, data that will assist
in understanding how a vehicle’s systems performed. The EDR is designed to
record data related to vehicle dynamics and safety systems for a short period
of time, typically 30 seconds or less.
The EDR in this vehicle is designed to record such data as:
• How various systems in your vehicle were operating;
• Whether or not the driver and passenger safety belts were buckled/fas-tened;
• How far (if at all) the driver was depressing the accelerator and/or brake pedal; and,
• How fast the vehicle was traveling.
These data can help provide a better understanding of the circu mstances in
which crashes and injuries occur.
NOTE: EDR data are recorded by your vehicle only if a non-trivi al crash situ-
ation occurs; no data are recorded by the EDR under normal driv ing condi-
tions and no personal data (e.g., name, gender, age, and crash location) are
recorded. However, other parties, such as law enforcement, could combine
the EDR data with the type of personally identifying data routi nely acquired
during a crash investigation.
To read data recorded by an EDR, special equipment is required, and access
to the vehicle or the EDR is needed. In addition to the vehicle manufacturer,
other parties, such as law enforcement, that have the special e quipment, can
read the information if they have access to the vehicle or the EDR.
●Disclosure of the EDR data
Toyota will not disclose the data recorded in an EDR to a third party except
when:
• An agreement from the vehicle’s owner (or the lessee for a lea sed vehi-
cle) is obtained
• In response to an official request by the police, a court of l aw or a govern-
ment agency
• For use by Toyota in a lawsuit
However, if necessary, Toyota may:
• Use the data for research on vehicle safety performance
• Disclose the data to a third party for research purposes witho ut disclosing
information about the specific vehicle or vehicle owner
Event data recorder

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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861-4. Hybrid system
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■Regenerative braking
In the following situations, kinetic energy is converted to electric energy and
deceleration force can be obtained in conjunction with the rech arging of the
hybrid battery (traction battery).
● The accelerator pedal is released while driving with the shift position in D or
B.
● The brake pedal is depressed while driving with the shift posit ion in D or B.
■ Hybrid System Indicator
■ Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop
automatically in the following conditions
*:
● During gasoline engine warm-up
● During hybrid battery (traction battery) charging
● When the temperature of the hybrid battery (traction battery) is high or low
● When the heater is switched on
*: Depending on the circumstances, the gasoline engine may also not stop
automatically in situations other than those above.
■ Charging the hybrid batt ery (traction battery)
As the gasoline engine charges the hybrid battery (traction bat tery), the bat-
tery does not need to be charged from an outside source. Howeve r, i f t h e
vehicle is left parked for a long time the hybrid battery (trac tion battery) will
slowly discharge. For this reason, be sure to drive the vehicle at least once
every few months for at least 30 minutes or 10 miles (16 km). I f the hybrid
battery (traction battery) becomes fully discharged and you are unable to start
the hybrid system, contact your Toyota dealer.
■ Charging the 12-volt battery
P. 652
■ After the 12-volt battery has discharged or when the terminal h as been
removed and installed during exchange, etc.
The gasoline engine may not stop even if the vehicle is being driven by the
hybrid battery (traction battery). If this continues for a few days, contact your
Toyota dealer. Hybrid System Indicator represents the
hybrid system power output and regener-
ative charging. ( P. 129)

871-4. Hybrid system
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For safety and security
■Sounds and vibrations sp ecific to a hybrid vehicle
There may be no engine sound or vibration even though the vehic le is able to
move with the “READY” indicator is illuminated. For safety, app ly the parking
brake and make sure to shift the shift position to P when parke d.
The following sounds or vibrations may occur when the hybrid sy stem is
operating and are not a malfunction:
● Motor sounds may be heard from the engine compartment.
● Sounds may be heard from the hybrid battery (traction battery) under the
rear seats when the hybrid system starts or stops.
● Relay operating sounds such as a snap or soft clank will be emi tted from the
hybrid battery (traction battery), under the rear seats, when the hybrid sys-
tem is started or stopped.
● Sounds from the hybrid system may be heard when the back door is open.
● Sounds may be heard from the transmission when the gasoline engine
starts or stops, when driving at low speeds, or during idling.
● Engine sounds may be heard when accelerating sharply.
● Sounds may be heard due to regenerative braking when the brake pedal is
depressed or as the accelerator pedal is released.
● Vibration may be felt when the gasoline engine starts or stops.
● Cooling fan sounds may be heard from the air intake vent. ( P. 89)
■ Vehicle proximity notification system
In the following cases, the vehicle proximity notification syst em may be diffi-
cult for surrounding people to hear.
● In very noisy areas
● In the wind or the rain
Also, as the vehicle proximity notification system is installed on the front of
the vehicle, it may be more difficult to hear from the rear of the vehicle com-
pared to the front.
■ When “Proximity Notification Syst em Malfunction Visit Your Dealer” is
displayed on the multi-information display
The vehicle proximity notification system may be malfunctioning . Have the
vehicle inspected by your Toyota dealer immediately.
■ Maintenance, repair, recycling, and disposal
Contact your Toyota dealer regarding maintenance, repair, recyc ling and dis-
posal. Do not dispose of the vehicle yourself.

921-4. Hybrid system
PRIUS_OM_OM47E09U_(U)
WARNING
■Road accident cautions
Observe the following precautions to reduce the risk of death o r serious
injury:
● Pull your vehicle off the road, apply the parking brake, shift the shift posi-
tion to P, and turn the hybrid system off.
● Do not touch the high voltage parts, cables and connectors.
● If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
● If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.
Never use a fire extinguisher that is not meant for electric fires. Using even
a small amount of water may be dangerous.
● If your vehicle needs to be towed, do so with front wheels (2WD models)
or four wheels (AWD models) raised. If the wheels connected to the elec-
tric motor (traction motor) are on the ground when towing, the motor may
continue to generate electricity. This may cause a fire. ( P. 584)
● Carefully inspect the ground under the vehicle. If you find that liquid has
leaked onto the ground, the fuel system may have been damaged. Leave
the vehicle as soon as possible.
AWD models
● If a fluid leak occurs, do not touch the fluid as it may be str ong alkaline
electrolyte from the hybrid battery (traction battery). If it c omes into contact
with your skin or eyes, wash it off immediately with a large am ount of water
or, if possible, boric acid solution. Seek immediate medical attention.
2WD models
● Do not touch the battery if liquid is leaking from or adhering to it.
If electrolyte (carbonic-based organic electrolyte) from the hy brid battery
(traction battery) comes into contact with the eyes or skin, it could cause
blindness or skin wounds. In the unlikely event that it comes into contact
with the eyes or skin, wash it off immediately with a large amount of water,
and seek immediate medical attention.
● If electrolyte is leaking from the hybrid battery (traction bat tery), do not
approach the vehicle.
Even in the unlikely event that the hybrid battery (traction ba ttery) is dam-
aged, the internal construction of the battery will prevent a l arge amount of
electrolyte from leaking out. However, any electrolyte that doe s leak out
will give off a vapor. This vapor is an irritant to skin and eyes and could
cause acute poisoning if inhaled.
● Do not bring burning or high-tem perature items close to the electrolyte.
The electrolyte may ignite and cause a fire.