2023 TOYOTA PRIUS PRIME my room

4376-1. Using the air conditioning system and defogger
6
Interior features
■Water droplets during air condi-
tioning operation
The outside heat exchanger, accu-
mulator and air conditioning piping
may incur condensation or frost may
form.
During or after the air conditioning
operation, water droplets may fall
from the vehicle. Ho wever, it is not a
malfunction.
Accumulator
Outside heat exchanger
■Fogging up of the windows
●The windows will easily fog up
when the humidity in the vehicle is
high. Turning “A/C” switch on will
dehumidify the air from the outlets
and defog the windshield effec-
tively.
●If you turn “A/C” switch off, the
windows may fog up more easily.
●The windows may fog up if the
recirculated air mode is used.
■While using “My Room Mode”
●It may not be possible to obtain
the intended defogging perfor-
mance even if the windshield
defogger switch is pressed. If the
windows need to be defogged
before driving, stop charging
power and then press the wind-
shield defogger switch.
●When the outside temperature is
low, heating may feel insufficient
due to restricted operation of the
air conditioning.
Heating cannot be performed
when it is approximately 14°F (-
10°C) or less as the gasoline engine cannot be started during
“My Room Mode”. If heating is
desired, stop charging and
remove the AC charging cable
from the vehicle.
■When driving on dusty roads
Close all windows. If dust thrown up
by the vehicle is still drawn into the
vehicle after closing the windows, it
is recommended that the air intake
mode be set to outside air mode
and the fan speed to any setting
except off.
■Outside/recirculated air mode
●Setting to the recirculated air
mode temporarily is recom-
mended in preventing dirty air
from entering the vehicle interior
and helping to cool the vehicle
when the outside air temperature
is high.
●Outside/recirculated air mode may
automatically switch depending on
the temperature setting or the
inside temperature.
■When the outside temperature
falls to nearly 32°F (0°C)
The dehumidification function may
not operate even when “A/C” switch
is pressed.
■Operation of the air condition-
ing system in the eco air condi-
tioning mode
●In the eco air conditioning mode,
the air conditioning system is con-
trolled as follows to prioritize fuel
efficiency:
• Engine speed and compressor
operation controlled to restrict
heating/cooling capacity
• Fan speed restricted when auto-
matic mode is selected
●The eco air conditioning mode can
be turned on and off using the
option screen of the air condition-
ing control screen. ( P.440)
●When the driving mode is
changed to Eco drive mode, the
eco air conditioning mode is
A
B

4396-1. Using the air conditioning system and defogger
6
Interior features
1Press the “AUTO” switch.
2 Adjust the temperature set-
ting.
3 To stop the operation, press
the “OFF” switch.
If the fan speed setting or air
flow modes are operated, the
automatic mode indicator goes
off. However, automatic mode
for functions other than that
operated is maintained.
■Using automatic mode
Fan speed is adjusted automati-
cally according to the temperature
setting and the ambient conditions.
Therefore, the fan may stop for a
while until warm or cool air is ready
to flow immediately after the auto-
matic mode switch is pressed.
Cool air may blow around the upper
body even when the heater is on
due to sunlight.
■Windshield fog detection func-
tion
When automatic mode is set, the
humidity sensor detects fog on the
windshield and controls the air con-
ditioning system to prevent fog.
WARNING
■Cautions for using “My Room
Mode”
Do not leave children, people who
need assistance, or pets inside
the vehicle. The system may turn
off automatically and the interior
temperature may become high or
low, resulting in heat stroke, dehy-
dration or hypothermia. Failure to
do so may result in death or seri-
ous injury.
■To prevent the windshield
from fogging up
Do not use the windshield defog-
ger switch during cool air opera-
tion in extremely humid weather.
The difference between the tem-
perature of the outside air and
that of the windshield can cause
the outer surface of the wind-
shield to fog up, blocking your
vision.
■When the outside rear view
mirror defoggers are operat-
ing (if equipped)
Do not touch the rear view mirror
surfaces when the outside rear
view mirror defoggers are on.
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the air conditioning
system on longer than necessary
when the hybrid system is off.
■When repairing/replacing
parts of the air conditioning
system
Have repair/replacement per-
formed by your Toyota dealer.
When a part of the air condition-
ing system, such as the evapora-
tor, is to be replaced, it must be
replaced with a new one.
Using automatic mode
NOTICE
■Humidity sensor
In order to detect fog on the wind-
shield, a sensor which monitors
the temperature of the windshield,
the surround humidity, etc. is
installed.
Follow these points to avoid dam-
aging the sensor:
●Do not disassemble the sensor

5127-3. Do-it-yourself maintenance
1Open the deck board
2 Hold the handle and pull it
toward you, and then the 3
clips will be disengaged
3 Taking out the 12-volt battery
cover.
When installing, reverse the steps
listed.
Make sure that the 12-volt bat-
WARNING
■Where to safely charge the
12-volt battery
Always charge the 12-volt battery
in an open area. Do not charge
the 12-volt battery in a garage or
closed room where there is insuf-
ficient ventilation.
■Emergency measures regard-
ing electrolyte
●If electrolyte gets in your eyes
Flush your eyes with clean water
for at least 15 minutes and get
immediate medical attention. If
possible, continue to apply water
with a sponge or cloth while trav-
eling to the nearest medical facil-
ity.
●If electrolyte gets on your skin
Wash the affected area thor-
oughly. If you feel pain or burning,
get medical attention immediately.
●If electrolyte gets on your
clothes
It can soak through clothing on to
your skin. Immediately take off the
clothing and follow the procedure
above if necessary.
●If you accidentally swallow elec-
trolyte
Drink a large quantity of water or
milk. Get emergency medical
attention immediately.
■When there is insufficient 12-
volt battery fluid
Do not use if there is insufficient
fluid in the 12-volt battery. There
is a possible danger that the 12-
volt battery may explode.
NOTICE
■When recharging the 12-volt
battery
Never recharge the 12-volt bat-
tery while the hybrid system is
operating. Also, be sure all acces-
sories are turned off.
Removing the 12-volt bat-
tery cover
Exterior

650Alphabetical Index
Alphabetical Index
A
A/C ........................................... 434“My Room Mode” ................. 134
Air conditioning eco mode .... 437
Air conditioning filter ............. 535
Automatic air conditioning sys-tem ..................................... 434
Humidity sensor ................... 439
ABS (Anti-lock Brake System) ............................................... 424Function ............................... 424
Warning light ........................ 557
ACA (Active Cornering Assist) ............................................... 424
AC charging cable .................... 97 CCID (Charging Ci rcuit Interrupt-
ing Device) indicator............. 99
CCID (Charging Ci rcuit Interrupt-
ing Device) ........................... 98
Charging cable indicator ...... 118
If the charging connector cannot be unlocked ........................ 104
Locking and unlocking.......... 102
Maintenance......................... 101
Safety functions...................... 99
Acoustic Vehicle Alerting Sys- tem ........................................... 81
Active Cornering Assist (ACA) ............................................... 424
AHB (Automatic High Beam) . 272
Airbags ...................................... 35 Airbag operating conditions.... 37
Airbag precautions for your child............................................. 40
Airbag warning light.............. 557
Correct driving posture ........... 29
Curtain shield airbag operating conditions ............................. 38
Curtain shield airbag precautions ............................................. 40
Front passenger occupant clas- sification system ...................44
General airbag precautions ....40
Location of the SRS airbags...35
Locations of airbags ...............35
Modification and disposal of air- bags......................................42
Seat cushion airbag................35
Side airbag operating conditions .............................................38
Side airbag precautions..........40
Side and curtain shield airbags operating conditions .............38
Side and curtain shield airbags precautions ...........................40
SRS airbags ...........................35
SRS warning light .................557
Air conditioning filter .............535
Air conditioning system.........434 “My Room Mode” ..................134
Air conditioning eco mode ....437
Air conditioning filter .............535
Automatic air conditioning sys-tem .....................................434
Humidity sensor....................439
Alarm Warning buzzer .. ..................555
Anchor brackets .................53, 62
Antenna Smart key system .................203
Anti-lock brake system (ABS)424 Function................................424
Warning light ........................557
Armrest ......... ......................... ..465
Assist grips .............................466
AUTO EV/HV mode ...................73
AUTO EV/HV mode switch .......74
Automatic air conditioning sys- tem .........................................434“My Room Mode” ..................134
Air conditioning eco mode ....437
Air conditioning filter .............535
Humidity sensor....................439

Alphabetical Index651
Automatic door locking and unlocking systems ............... 190
Automatic High Beam (AHB) . 272
Automatic light control system ............................................... 270
Average fuel economy ........... 163
Average vehicle speed .......... 163
B
Back door ................................ 191 Power back door .................. 194
Wireless remote control ....... 194
Back-up lights Replacing exterior lights ....... 543
Battery (12-volt battery) ......... 511 Checking the battery condition........................................... 513
If the 12-volt battery is dis- charged .............................. 589
Preparing and checking before winter.................................. 429
Replacing ............................. 591
Warning light ........................ 555
Battery (traction battery) ......... 83 Charging....................... 108, 116
Location.................................. 83
Specification ......................... 602
Blind Spot Monitor (BSM) ...... 354
Bottle holders ......................... 452
Brake Brake Hold ........................... 266
Fluid ..................................... 509
Parking brake ....................... 263
Regenerative braking ............. 78
Warning light ........................ 555
Brake assist ............................ 424
Brake Hold .............................. 266
Brake Override System .......... 240
Break-in tips ........................... 240
Brightness control Instrument panel light control160
BSM (Blind Spot Monitor) ...... 354
C
Care..................................486, 490 Aluminum wheels .................486
Exterior .................................486
Interior ..................................490
Seat belts .............................490
Cargo capacity ................246, 249
Cargo hooks............................454
Catch protection function Power windows ....................227
Chains......................................431
Charging ..........................108, 116 “My Room Mode” ..................134
AC charging cable ..................97
Charging equipment ...............94
Charging indicator ..................96
Charging messages .............143
Charging precautions ...........120
Charging procedure..............116
Charging schedule function ..123
Charging time may increase.114
High voltage components .......83
How to charge ......................116
Information related to charging display ................................111
Opening and closing the charging port lid ....................94
Power sources precautions ..107
Power sources that can be used ...........................................106
Safety functions ....................113
Solar charging system ..........136
When charging cannot be car- ried out ...............................139
Charging port ............................94 Opening and closing...............94
Child-protector lock ...............189
Child restraint system ..............51 Fixed with a LATCH system ...60
Fixed with a seat belt..............55
Front passenger occupant clas-

Alphabetical Index657
Instrument panel ornament lights........................................... 446
Interior lights list ................... 446
Interior lights......................... 447
Luggage compartment light 193, 197
Personal lights...................... 447
Rear personal lights ............. 447
Replacing exterior lights ....... 543
Shift lever light...................... 446
Turn signal lever................... 262
Vanity lights .......................... 456
Load capacity ......................... 249
LTA (Lane Tracing Assist) ..... 305 Operation ............................. 305
Luggage compartment light 193, 197
Luggage cover........ ................ 455
M
Maintenance
Do-it-yourself maintenance .. 499
General maintenance ........... 495
Maintenance data................. 600
Maintenance requirements... 494
Malfunction indicator lamp.... 556
Menu icons ............................. 162
Meter Indicators.............................. 152
Instrument panel light control160
Meter control switches ......... 162
Meters .................................. 155
Multi-information display ...... 161
Settings ................................ 166
Warning lights .............. 150, 555
Warning messages ...... 172, 566
Meter control switches .......... 162
Mirrors Digital Rear-view Mirror........ 217
Inside rear view mirror.......... 216
Outside rear view mirror defog-gers .................................... 436 Outside rear view mirrors .....225
Vanity mirrors .......................456
Multi-information display Audio system-linked display .166
Changing the display ............162
Cruise control .......................342
Display contents ...................161
Driving information display ...163
Driving support system informa-tion display .........................165
Energy monitor .....................173
Hybrid System Indicator .......158
Menu icons ...........................162
Meter control switches..........162
PCS (Pre-Collisio n System) .293
Settings ................................166
Suggestion function ..............172
Tire pressure ........................516
Vehicle information display...166
Warning message display ....172
Warning messages ...............566
“My Room Mode” ...................134
My Settings .............................234
N
Noise from under ve hicle...........6
Normal mode...........................422
O
Odometer.................................155 “ODO TRIP” switch ...............160
Odometer and trip meter display “ODO TRIP” switch ...............160
“ODO TRIP” switch ................160
Oil Engine oil..............................602
Opener Back door .....................193, 195
Fuel filler door.......................280
Garage door .........................477
Hood .....................................501