2015 TOYOTA PRIUS PLUG-IN HYBRID heating

335
2-4. Using other
driving systems
PRIUS PHV_OM_OM47A11U_(U)
2
When driving
■Sounds and vibrati ons caused by the ABS, brake assist, VSC and
TRAC
● A sound may be heard from the engine compartment when the hybrid
system is started, just after the vehicle begins to move, if the brake pedal
is depressed forcefully or repeatedly, or 1-2 minutes after the hybrid sys-
tem is stopped. This sound does not indicate that a malfunction has
occurred in any of these systems.
● Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may
be heard. This does not indicate a malfunction.
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this occur,
refrain from excessive steering input or stop the vehicle and turn the hybrid
system off. The EPS system should return to normal within 10 minutes.
■ Electric power steering system warning light (warning buzzer)
P. 544

373
3-1. Using the air conditioning system
and defogger
PRIUS PHV_OM_OM47A11U_(U)
3
Interior features
■If air flow from the vents decreases dramatically
The filter may be clogged. Contact your Toyota dealer.
■ Operation of the air conditio ning system in Eco drive mode
In the Eco drive mode, the air conditioning system is controlled as follows to
prioritize fuel efficiency:
● Engine speed and compressor operation controlled to restrict heating/
cooling capacity
● Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations:
● Adjust the fan speed
● Turn off Eco drive mode ( P. 251)
● Customize the air conditioning control of Eco drive mode. ( P. 647)
■ When outside air temperature is below 32°F (0°C)
The cooling and dehumidification function may not operate even when
is pressed.
■ Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
● During use, various odors from inside and outside the vehicle may enter
into and accumulate in the air conditioning system. This may then cause
odor to be emitted from the vents.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immediately after the air conditioning system is started in automatic
mode.
■ Customization
Settings (e.g. enable/disable automatic operation of the air conditioning
compressor when the “AUTO” switch ON) can be changed.
(Customizable features P. 647)

404 3-5. Other interior features
PRIUS PHV_OM_OM47A11U_(U)
CAUTION
■Burns
●Use caution when seating the following persons in a seat with the seat
heater on to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the physically chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold remedies, etc.)
● Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.
● Do not use the seat heater more than necessary. Doing so may cause
minor burns or overheating.
NOTICE
■To prevent seat heater damage
Do not put heavy objects that have an uneven surface on the seat and do
not stick sharp objects (needles, nails, etc.) into the seat.
■ To prevent 12-volt battery discharge
Turn the seat heaters off when the hybrid system is off.

556 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
Warning messageDetailsCorrection procedure
(If equipped) • Indicates that the pre-collision
system is not currently func-
tional because the grille or the
sensor is dirty.
• This message also appears when the pre-collision system
is not functional due to over-
heating. • Check the grille
and the sensor and
clean them if they
are dirty.
• In case of over- heating, the system
will become func-
tional once the sys-
tem cools down.
(Flashes)
(If equipped) Indicates that the radar cruise
control sensor is dirty or cov-
ered with ice.
Clean the sensor.
(Flashes)
(If equipped) Indicates that the radar cruise
control system is unable to
judge vehicle-to-vehicle dis-
tance.
If the windshield
wipers are on, turn
them off or set
them to either the
intermittent or the
slow mode.

5
When trouble arises
607
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
If your vehicle overheats
Correction procedures■ If the high coolant temperatur e warning light comes on or
flashes
Stop the vehicle in a safe place and turn off the air condition-
ing system, and then stop the hybrid system.
If you see steam: Carefully lift the hood after the steam subsides.
If you do not see steam: Carefully lift the hood.
After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
The following may indicate that your vehicle is overheating.
●The high coolant temperature warning light ( P. 538) comes on
or flashes, or a loss of hybrid system power is experienced. (For
example, the vehicle s peed does not increase.)
● “HYBRID SYSTEM OVERHEAT” ( P. 557) is shown on the
multi-informat ion display.
● Steam comes out from under the hood.
1 ÉTAPE
2 ÉTAPE
STEP 3

652 6-2. Customization
PRIUS PHV_OM_OM47A11U_(U)
ItemFunctionDefault set-tingCustom-ized
setting
Meter and
instrument
panel
( P. 262) Sensor sensitiv-
ity for darkening
the brightness of
the meter, navi-
gation system
and instrument
panel depend-
ing on the out-
side brightness
0 -2 to +2 – – O
Sensor sensitiv-
ity for returning
the brightness of
the meter, navi-
gation system
and instrument
panel to the orig-
inal level
depending on
the outside
brightness 0 -2 to +2 – – O
Automatic
air
conditioning
system
( P. 364) Enable/disable
automatic
operation of the
air conditioning
compressor
when the
“AUTO” switch
ON
ON OFF – O O
Heating/cooling
operation mini-
mized in Eco
drive mode ON OFF – – O

678 Alphabetical index
PRIUS PHV_OM_OM47A11U_(U)
Child restraint systemBooster seats, definition ........ 208
Booster seats, installation ..... 216
Convertible seats, definition ............................. 208
Convertible seats,
installation ........................... 216
Front passenger occupant classification system ........... 202
Infant seats, definition ........... 208
Infant seats, installation......... 216
Installing child restraint system with LATCH anchors ........... 214
Installing child restraint system with seat belts ..................... 216
Installing child restraint system with top tether strap ............ 220
Child safety
Airbag precautions ................196
Back door precautions .......... 146
Child restraint system............ 208
Child-protectors ..................... 139
How to charge .........................85
How your child should wear the seat belt ........................ 163
Installing child restraints ........ 213
Power window lock switch..... 175
Power window precautions ... 177
Remote Air Conditioning System precautions ............ 380
Removed electronic key
battery precautions ............. 498
Seat belt extender precautions ......................... 168
Seat belt precautions ............ 164
Seat heater precautions ........ 404
12-volt battery precautions .... 479 Child-protectors ....................... 139
Cleaning
Exterior.................................. 430
Interior ................................... 433
Seat belts .............................. 434
Clock ......................................... 280
Condenser ................................ 471
Console box ............................. 393
Cooling system
Engine overheating ............... 607
Hybrid system overheating ... 607
Cruise control
Cruise control ........................ 313
Dynamic radar cruise control ................................. 317
Cup holders .............................. 394
Curtain shield airbags ............. 187
Customizable features ............ 647

680 Alphabetical index
PRIUS PHV_OM_OM47A11U_(U)
EngineAccessory mode.................... 244
Compartment ........................ 464
Hood...................................... 448
How to start the hybrid system ................................ 242
Identification number ............. 620
If the hybrid system will not start ..................................... 596
Ignition switch........................ 242
Overheating........................... 607
“POWER” switch ................... 242
Engine coolant Capacity ................................ 625
Checking ............................... 469
Preparing and checking before winter ....................... 355
Engine/power control
unit coolantCapacity ................................ 625
Checking ............................... 469
Preparing and checking before winter ....................... 355
Engine oil Capacity ................................ 622
Checking ............................... 465
Preparing and checking before winter ....................... 355
Enhanced VSC ......................... 333
EPS ............................................ 333
EV driving ratio indicator ........ 276
EV driving range ................58, 273
Event data recorder ...................25
EV/HV mode selection switch .......................................37 Floor mats ................................ 407
Fluid
Brake..................................... 627
Washer.................................. 474
Fog lights Replacing light bulbs ............. 511
Switch ................................... 303
Wattage................................. 628
Foot lights ................................ 388
Front fog lights
Replacing light bulbs ............. 511
Switch ................................... 303
Wattage................................. 628
Front passenger occupant classification system ............ 202
Front passenger’s seat belt reminder light ........................ 541
Front seats
Adjustment ............................ 150
Front side marker light Replacing light bulbs ............. 511
Wattage................................. 628
Front turn signal lights Replacing light bulbs ............. 511
Switch ................................... 259
Wattage................................. 628
Fuel Capacity ................................ 621
Fuel gauge ............................ 262
Information ............................ 629
Refueling ............................... 178
Type ...................................... 629
Fuel door .................................. 178
Fuel filler door .......................... 178
Fuses ........................................ 499F