air conditioning TOYOTA PRIUS 2021 Owners Manual (in English)

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

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

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”.
5
6
7
8
9
10
11
12
13
14

881-4. Hybrid system
PRIUS_OM_OM47E09U_(U)
Hybrid system precautions
The illustration is an example for explanation and may differ from the
actual item.
Take care when handling the hybrid system, as it is a high volt -
age system (about 600 V at maximum) as well as contains parts
that become extremely hot when the hybrid system is operating.
Obey the warning labels attached to the vehicle.
Warning label
Service plug
Rear inverter (traction motor)
*
Rear electric motor (traction
motor)
*
Hybrid battery (traction battery) High voltage c
ables (orange)
Front electric motor (traction
motor)
Power control unit
Air conditioning compressor*: AWD models only
1
2
3
4
5
6
7
8
9

PRIUS_OM_OM47E09U_(U)
1052. Instrument cluster
2
Instrument cluster
■When disconnecting and reconnecting 12-volt battery terminals
The settings of the clock will be reset.
■ Calendar settings
●Until the calendar settings are set, the check screen is displa yed every time
the power switch is turned to ON mode.
● After the calendar information is set, it can be changed in the “Meter Cus-
tomize” settings. ( P. 153)
■ When the menu screen on the navi gation system is operated (vehicles
with 11.6-inch display)
■ Liquid crystal display
Small spots or light spots may appear on the display. This phen omenon is
characteristic of liquid crystal displays, and there is no prob lem continuing to
use the display.
■ Pop-up display
Some functions, such as the driving mode select switch and air conditioning
system, are operation-linked and display pop-up screens on the multi-infor-
mation display. If the pop-up screens of these functions are not desired, they
can be turned off in the “Meter Customize” settings. ( P. 153)
If calendar recording is interrupted due to
replacement of the 12-volt battery or 12-
volt battery discharge, etc., when the
power switch is turned to ON mode after
maintenance, the calendar settings check
screen is automatically displayed on the
multi-information display.
●
If date information is not set, the fuel
consumption record cannot be stored
correctly. When the calendar settings
check screen is displayed, make sure to
always set the settings. ( P. 151)
A pop-up display of the menu screen icon
is displayed on the multi-information dis-
play.
*
*
: The pop-up display on the navigation
system can be turned off in the “Meter
Customize” settings. ( P. 153)

PRIUS_OM_OM47E09U_(U)
1252. Instrument cluster
2
Instrument cluster
*1: If equipped
*2: When there is a warning message that can be displayed, the color of
changes to amber.
Menu iconsContentsPages
Drive information The energy monitor that shows the operation
status of the hybrid system, or other informa-
tion such as fuel consumption is displayed. P. 126
Clock setting display
The clock settings can be changed. P. 144
Navigation system-linked display*1
The information related to the navigation sys-
tem is displayed.P. 145
Audio system-linked display*1
The audio system settings can be changed.P. 145
Air conditioning system settings screen
The air conditioning system settings can be
changed.
P. 146
Driving assist system information
The information related to driving assist sys-
tems such as the LTA (Lane Tracing Assist)
*1
and dynamic radar cruise control with full-
speed range
*1 is displayed.
P. 150
Warning message display*2
The warning messages are displayed.P. 150
Settings displayThe settings of the vehicle functions, meter
display, etc. can be changed.
P. 151

132
PRIUS_OM_OM47E09U_(U)
2. Instrument cluster
■When operation of each function stops
● The Hybrid System Indicator stops operating in the following si tuations.
• The “READY” indicator is not illuminated.
• The shift position is not D or B.
● The Eco score and “ECO Accelerator Guidance” stop operating in the fol-
lowing situations.
• The Hybrid System Indicator is not operating.
• Cruise control (if equipped) or dynamic radar cruise control w ith full-
speed range (if equipped) is being used.
■ About the Eco score
●After starting off, Eco score display does not start until the vehicle speed
exceeds approximately 19 mph (30 km/h).
● In addition to the vehicle driving status, the Eco score also e valuates the air
conditioning system usage condition ( P. 148). The score displayed when
the hybrid system stops is the total result of the driving stat us after the
hybrid system starts and the air conditioning usage condition.
■ Predictive Efficient Drive (Pre dictive Deceleration Support) (vehicles
with 11.6-inch display)
When a predictive deceleration support point registered in the navigation sys-
tem is approached, the system turns off the Eco accelerator gui de and
informs the driver of releasing the accelerator pedal early.
For details about Predictive Efficient Drive (Predictive Decele ration Support),
refer to “NAVIGATION SYSTEM OWNER’S MANUAL”.

146
PRIUS_OM_OM47E09U_(U)
2. Instrument cluster
The condition of the air conditioning system settings can be checked
on the screen and the air conditioning system settings can be
changed using the mete r control switches.
On the air conditioning settings screen, press or of the meter con-
trol switches to switch the contents of the display.
For details regarding the air conditioning system function, refer to P. 436 and
446.
■
Screen display and setting items that can be changed
Air conditioning syst em settings screen

PRIUS_OM_OM47E09U_(U)
1472. Instrument cluster
2
Instrument cluster
*1: “LO” is displayed if the temperature is adjusted to the lowest setting, and
“HI” is displayed if the temperature is adjusted to the highest setting.
*2: The selectable modes differ depending on whether a passenger i s present.
( P. 438, 448)
■
Adjusting the settings
Press to display the cursor.
Press or of the meter control switches to select the
desired item to set.
Press or of the meter contro l switches to select the set-
ting item or setting value.
The air conditioning system cannot be stopped by performing ope ra-
tions on the air conditioning settings screen. Please use the a ir condi-
tioning switch or navigation system
* to stop the air conditioning system.
*: Vehicles with 11.6-inch display only
ItemSettings
Eco score
(A/C score)P. 148
Temperature
settingChanges according to operation of the meter control switches
*1
Outside air and
recirculated air
modes

(Outside air mode)
(Recirculated air mode)
Fan speed1 to 7
“CLIMATE
CONTROL”“NORMAL”“ECO”
Front seat
concentrated
airflow mode
(S-FLOW)
“On (Driver Priority)”
*2“On (Fr Seat Only)”
*2“Off (All seat)”
1
2
3
4
5
6
1
2
3

148
PRIUS_OM_OM47E09U_(U)
2. Instrument cluster
■Eco score (A/C score)
The current air conditioning system usage status is evaluated i n 5
levels to determine whether it is Eco-friendly.
The evaluation changes according to the air conditioning system
usage status. When the power switch is turned off, the current total
driving score
*1 and advice*2 related to using the air conditioning
system are displayed. ( P. 1 0 2 )
Low score
*3
High score
Avoiding excessive use of the
air conditioning system and
using the air conditioning sys-
tem at the appropriate setting
according to the ambient tem-
perature and number of passen-
gers and with the front seat
concentrated airflow mode (S-
FLOW) ( ) and “CLIMATE
CONTROL” will result in a high
evaluation.
*1: The Eco score (A/C score) is not evaluated for approximately 1 minute after the power switch is turned to ON mode.
*2: This advice may not be displayed depending on the situation.
*3: For items not evaluated with an Eco score (A/C score), the displayreads 0.
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