2021 TOYOTA PRIUS heater

TABLE OF CONTENTS4
PRIUS_OM_OM47E09U_(U)5-1. Using the air conditioning
system and defogger
Automatic air conditioning system (vehicles with
7-inch display) ................. 436
Automatic air conditioning system (vehicles with
11.6-inch display) ............ 446
Heated steering wheel/ seat heaters .................... 456
5-2. Using the interior lights Interior lights list ................ 458• Front interior light .......... 459
• Front personal lights ..... 459
• Rear interior light .......... 460
5-3. Using the storage features
List of storage features...... 461 • Glove box...................... 462
• Console box .................. 462
• Cup holders .................. 463
• Bottle holders/door pockets ................. 464
• Auxiliary boxes .............. 465
• Seat back pockets ........ 466
Luggage compartment features ........................... 467 5-4. Using the other interior
features
Other interior features........ 473 • Sun visors ..................... 473
• Vanity mirrors ................ 473
• Power outlets ................ 474
• USB charging ports ....... 475
• Wireless charger ........... 477
• Armrest.......................... 486
• Coat hooks .................... 486
• Assist grips .................... 487
Garage door opener .......... 488
6-1. Maintenance and care Cleaning and protecting the vehicle exterior .......... 496
Cleaning and protecting the vehicle interior ........... 502
6-2. Maintenance Maintenance requirements ................... 505
General maintenance ........ 508
Emission inspection and maintenance (I/M)
programs ......................... 511
5Interior features
6Maintenance and care

20Pictorial index
PRIUS_OM_OM47E09U_(U)
■Switches
Instrument cluster light control switch . . . . . . . . . . . . . . . . P. 100
S-APGS (Simple Advanced Parking Guidance System)
switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 389
VSC OFF switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 422
Automatic High Beam switch
*1 . . . . . . . . . . . . . . . . . . . . . . P. 268
“HUD” (Head-up display) switch
*1. . . . . . . . . . . . . . . . . . . . P. 159
Driving mode select switch . . . . . . . . . . . . . . . . . . . . . . . . . P. 347
EV drive mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 252
Seat heater switches
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 4 57
Window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
Outside rear view mirror switch . . . . . . . . . . . . . . . . . . . . . . P. 216
Door lock switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
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861-4. Hybrid system
PRIUS_OM_OM47E09U_(U)
■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)

418
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4-5. Using the driving support systems
WARNING
●Do not use the system in the following situations, as the syste m may be
unable to correctly assist you in reaching the target parking s pot and may
lead to an unexpected accident.
• In an area that is not a parking lot
• A parking lot that is not paved and has no parking space lines, such as a sand or gravel parking lot
• A parking lot that has a slope or undulations in the road
• A frozen, snow-covered or slippery road
• The asphalt is melting due to hot weather
• There is an obstacle between the vehicle and the target parking spot
• Using tire chains or compact spare tire (if equipped)
● Do not use tire other than that provided by the manufacturer. The system
may not operate properly. When replacing tires, contact your Toyota
dealer.
● The system may not be able position the vehicle in the set location in the
following situations.
• The tires are extremely worn or the tire pressure is low
• The vehicle is carrying very heavy load
• The vehicle is tilted due to having luggage, etc. located on one side of
the vehicle
• There are road heaters installed in the parking lot to prevent the road
surface from freezing.
In any other situations when the set position and vehicle posit ion greatly
differ, have the vehicle inspected by your Toyota dealer.
● Make sure to observe the following precautions regarding the exit parallel
parking assist mode.
Exit parallel parking assist mode is a function used when depar ting from a
parallel parking spot. However, this function may not be usable if obsta-
cles or people are detected in front of the vehicle. Only use t his function
when departing from a parallel parking spot. In the event that the steering
control operates, either turn the system off using the S-APGS s witch or
operate the steering wheel to stop the control.
● If exit parallel parking assist mode is mistakenly used in the following situ-
ations, the vehicle may make contact with an obstacle.
The departure function is operated in a direction where an obst acle is
present, but the obstacle is not detected by the side sensors ( situations
such as when the vehicle is directly beside a pole).

428
PRIUS_OM_OM47E09U_(U)
4-6. Driving tips
◆When braking
Make sure to operate the brakes gently and in a timely manner. A
greater amount of electrical energy can be regenerated when slow-
ing down.
◆Delays
Repeated acceleration and deceleration, as well as long waits a t
traffic lights, will lead to bad fuel economy. Check traffic re ports
before leaving and avoid delays as much as possible. When drivi ng
in a traffic jam, gently release the brake pedal to allow the v ehicle to
move forward slightly while avoiding overuse of the accelerator
pedal. Doing so can help control excessive gasoline consumption.
◆Highway driving
Control and maintain the vehicle at a constant speed. Before st op-
ping at a toll booth or similar, allow plenty of time to releas e the
accelerator and gently apply the brakes. A greater amount of el ec-
trical energy can be regenerated when slowing down.
◆Air conditioning
Use the air conditioning only when necessary. Doing so can help
reduce excessive gasoline consumption.
In summer: When the ambient tempe rature is high, use the recircu-
lated air mode. Doing so will help to reduce the burden on the air
conditioning system and reduce fuel consumption as well.
In winter: Because the gasolin e engine will not automatically cut out
until it and the interior of the vehicle are warm, it will cons ume fuel.
Also, fuel consumption can be improved by avoiding overuse of t he
heater.

435
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5Interior features
5-1. Using the air conditioning system and defogger
Automatic air conditioning system (vehicles with
7-inch display) ................. 436
Automatic air conditioning system (vehicles with
11.6-inch display) ............ 446
Heated steering wheel/ seat heaters .................... 456 5-2. Using the interior lights
Interior lights list ................ 458• Front interior light .......... 459
• Front personal lights ..... 459
• Rear interior light .......... 460
5-3. Using the storage features
List of storage features ..... 461 • Glove box...................... 462
• Console box .................. 462
• Cup holders .................. 463
• Bottle holders/
door pockets ................. 464
• Auxiliary boxes.............. 465
• Seat back pockets ........ 466
Luggage compartment features ........................... 467
5-4. Using the other interior features
Other interior features ....... 473 • Sun visors ..................... 473
• Vanity mirrors................ 473
• Power outlets ................ 474
• USB charging ports....... 475
• Wireless charger ........... 477
• Armrest ......................... 486
• Coat hooks.................... 486
• Assist grips ................... 487
Garage door opener.......... 488

456
PRIUS_OM_OM47E09U_(U)
5-1. Using the air conditioning system and defogger
Heated steering wheel/seat heaters
: If equipped
●Heated steering wheel
Warm up the grip of the steering wheel
● Seat heaters (front seats)
Warm up the seat upholstery
WARNING
●Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the hea ter is on:
• Babies, small children, the elderly, the sick and the physical ly chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sle eping
drugs, cold remedies, etc.)
● Observe the following precautions to prevent minor burns or ove rheating:
• Do not cover the seat with a blanket or cushion when using the seat
heater.
• Do not use seat heater more than necessary.
NOTICE
● Do not put heavy objects that have an uneven surface on the sea t and do
not stick sharp objects (needles, nails, etc.) into the seat.
● To prevent 12-volt battery discharge, do not use the functions when the
hybrid system is off.

PRIUS_OM_OM47E09U_(U)
4575-1. Using the air conditioning system and defogger
5
Interior features
Turns the heated steering wheel
on/off
The indicator in the instrument
cluster comes on when the heated
steering wheel is operating.
●The heated steering wheel can be used when the power switch is in ON
mode.
● The heated steering wheel will automatically turn off after about 30 minutes.
Heats the seat at low tempera-
ture (LO)
Heats the seat at high tempera-
ture (HI)
The indicator light comes on when
one side of the switch is pressed.
To stop the operation, gently press
the other side of the switch.
●The seat heaters can be used when the power switch is in ON mod e.
● When not in use, turn off the switch. The indicator light goes off.
Heated steering wheel (if equipped)
Seat heaters (if equipped)
Indicator
Indicator
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