2022 TOYOTA RAV4 PRIME cooling

842-1. Plug-in hybrid system
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 driv-
ing 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 dep ressed 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 under the
rear seat. ( P.91)
●Sounds may be heard from near
the hybrid battery (traction battery)
in accordance with the operation
of the air conditioning system or
battery cooler. ( P.116)
■Maintenance, repair, recycling,
and disposal
Contact your Toyota dealer regard-
ing maintenance, repair, recycling
and disposal. Do not dispose of the
vehicle yourself.
In order to make EV mode or
AUTO EV/HV mode available,
charge the hybrid battery (trac-
tion battery) from an external
power source before using the
vehicle.
Even if charging t he hybrid battery
(traction battery) has not been com-
pleted, the vehicle can be driven.
However, if there is not enough
charge remaining, it is possible that
the vehicle canno t be driven in EV
mode or AUTO EV/HV mode or the EV driving ra
nge will become
shorter.
■Refilling fuel
Plug in Hybrid Electric Vehicles can
be driven using electricity charged
from an external power source.
However, as the ga soline engine is
used depending on the situation
(  P.82) even if in EV mode or
AUTO EV/HV mode, and the gaso-
line engine is provided on board as
a power source for driving in HV
mode, it is needed to refueling the
vehicle.
Check the fuel a mount and refill
immediately when the fuel level
becomes low. ( P.304)
■If the vehicle is not used for a
long time
●The 12-volt battery may dis-
charge. In this e vent, charge the
12-volt battery. ( P.534)
In order to prevent the hybrid bat-
tery (traction batt ery) from becom-
ing extremely low in charge,
charge the hybrid battery (traction
battery) from external power
source or start th e hybrid system
at least once every 2 or 3 months,
and turn the power switch off after
the gasoline engine has stopped
automatically. ( If the gasoline
engine does not start up even
after approximately 10 seconds
Charging ( P.99)

912-1. Plug-in hybrid system
2
Plug-in hybrid system
There is an air intake vent under
the rear seat for cooling the
DC/DC converter.
Blocking the air intake vent may
prevent the plug-in hybrid sys-
tem from operating properly.When a certain level of impact is
NOTICE
■Notice about fuel
●For Plug in Hybrid Electric Vehi-
cles, fuel may remain in the tank
for a long time and undergo
changes in quality depending
on the how the vehicle is used.
Refuel at least 5.3 gal. (20 L,
4.4 Imp.gal.) of fuel every 12
months (refuel a total of at least
5.3 gal. [20 L, 4.4 Imp.gal.] over
a 12-month period), as this may
affect components of the fuel
system or the gasoline engine.
●If the vehicle has not been refu-
eled for a certain amount of time
and it is possible that the quality
of the fuel remaining in the tank
has changed, “No New Fuel has
been Added Recently Please
refuel” is displayed on the multi-
information display when the
power switch is turned to ON. If
the message is displayed, refuel
the vehicle immediately.
DC/DC converter air
intake vent
NOTICE
■DC/DC converter air intake
vent
●Make sure not to block the air
intake vent with anything, such
as a seat cover, plastic cover, or
luggage. Blocking the air intake
vent may prevent the plug-in
hybrid system from operating
properly.
●When dust etc. has accumu-
lated in the air intake vent, clean
it with a vacuum cleaner to pre-
vent the vent from clogging.
●Do not wet or allow foreign sub-
stances to enter the air vent as
this may cause a short circuit
and damage the DC/DC con-
verter.
●Do not carry large amounts of
water such as water cooler bot-
tles in the vehicle. If water spills
onto the DC/DC converter, the
converter may be damaged.
Have the vehicle inspected by
your Toyota dealer.
●A filter is installed to the air
intake vent. When the filter
remains noticeably dirty even
after cleaning the air intake
vent, filter cleaning or replace-
ment is recommended. When
cleaning the filter, refer to
P.480.
●If “Maintenance required for
DCDC converter cooling parts
See Owner’s Manual” is shown
on the multi-information dis-
play, the air intake vent and fil-
ter may be clogged. Refer to
P.480 for information on how to
clean the air intake vent.
Emergency shut off sys-
tem

922-1. Plug-in hybrid system
detected by the impact sensor,
the emergency shut off system
blocks off the high voltage cur-
rent and stops the fuel pump to
minimize the risk of electrocu-
tion and fuel leakage.
If the emergency shut off system
activates, your vehicle will not
restart. To restart the hybrid sys-
tem, contact your Toyota dealer.
A message is automatically dis-
played when a malfunction
occurs in the hybrid system or
an improper operation is
attempted.
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions.
■If a warning light comes on, a
warning message is displayed
or the 12-volt battery is discon-
nected
The hybrid system may not start. In
that case, try to start the system
again. If the “READY” indicator does
not come on, contact your Toyota
dealer.
Primarily using EV mode and
AUTO EV/HV mode when driv-
ing in cities and using HV mode
when driving on highways (or
freeways) can help conserve
fuel and electricity. ( P.78)
When using Eco drive mode, the
torque corresponding to the
accelerator pedal depression
amount can be generated more
smoothly than it is in normal
conditions. In addition, the oper-
ation of the air conditioning sys-
tem (heating/cooling) will be
minimized, improving fuel and
electricity economy. ( P.372)
Eco-friendly driving is possible
by keeping the Hybrid System
Indicator within Eco area.
( P.167)Hybrid warning message
Plug in Hybrid Electric
Vehicle driving tips
For economical and ecolog-
ical driving, pay attention to
the following points:
Using EV mode, AUTO
EV/HV mode and HV
mode effectively
Using Eco drive mode
Use of Hybrid System
Indicator

962-1. Plug-in hybrid system
of occupants.
The distance that EV driving is
possible can be extended if the
following is performed:
■When starting off, depress
the accelerator pedal
smoothly to accelerate
As a guide, accelerate up to
approximately 12mph (20 km/h)
in the first 5 seconds.
Electrical and fuel efficiency can
be improved just by using the
ECO Accelerator Guidance dis-
played on the multi-information
display and taking care to start
off gently. ( P.173)
When the driving mode is set to
Eco drive mode, depressing the
accelerator pedal generates
smooth torque that makes it easier
to operate the accelerator gently.
At the same time, the air condition-
ing control is switched to eco air
conditioning mode ( P.391) to
reduce the strength of the air condi-
tioning operation.
■Maintain sufficient vehicle-
to-vehicle distance and do
not accelerate or decelerate
unnecessarily
Try to maintain a fixed speed
while driving. Driving at a short
vehicle-to-vehicle distance will
result in repeating wasteful
acceleration and deceleration,
which will worsen the electrical
and fuel efficiency.
■Release the accelerator
pedal early before stopping
the vehicle, such as at a
traffic light
The regenerative brake will
operate to convert the kinetic
energy of the vehicle into electri-
cal energy, which will charge the
hybrid battery (traction battery).
The regeneration status can be
checked from the Hybrid Sys-
tem Indicator. ( P.167)
When the brake pedal is
depressed lightly during decel-
eration, the regeneration
amount increases, enabling
more electrical energy to be
recovered.
If the brake pedal is depressed too
strongly, the recovered amount
indicator will reac h the maximum
level and the upper limit of the
recoverable energy will be
exceeded. Theref ore, be sure to
operate the brak e pedal early.
■Use the air conditioning
system appropriately, and
also utilize the heated steer-
ing wheel (if equipped) and
seat heaters
In EV mode, the vehicle is
cooled and heated by electrical
energy. (Except in extremely
cold temperatures of approxi-
mately 14°F (-10°C) or less.)
Preventing excessive cooling or
heating of the vehicle will reduce
power consumption and
improve electrical efficiency.

1162-2. Charging
■Hybrid battery (traction bat-
tery) warming control
(Alaska and Canada only)
This control operates after the
AC charging cable remains con-
nected to the vehicle for 3 days
and “Battery Heater” automati-
cally stops. It automatically insu-
lates the hybrid battery (traction
battery) in extremely low tem-
peratures.
 This control stops 31 days
after the AC charging cable is
connected, even if it is still
connected to the vehicle.
 When this control operates,
charging schedule settings
are ignored and charging
starts.
■“Battery Cooler”
When the hybrid battery (trac-
tion battery) is hot and the AC
charging cable is connected to
the vehicle, this function cools
the hybrid battery (traction bat-
tery) before charging is carried
out.
 “Battery Cooler” will operate
when the “Battery Cooler” of
the “Charging Settings” on the
multi-information display is
on. ( P.178)
 When the charging voltage is
120 V, the function does not
operate.
■Traction battery heating and
cooling system (“Battery
Heater” and “Battery Cooler”)
●The system ope rates when the
hybrid battery (traction battery) is
below or above a certain tempera-
ture.
●The system may operate when
charging is not being performed.
●When the charging schedule is
used ( P.130), this function will
operate according to the charging
schedule.
■“Battery Heater”
●When “Battery Heater” is operat-
ing, the charging indicator illumi-
nates.
●When the AC charging cable is
removed from the vehicle or
remains connected to the vehicle
for approximately 3 days, the sys-
tem automatically stops.
●When “Battery Heater” is operat-
ing during charging, the charging
time may be longer than normal.
●If the outside temperature
becomes high w hile “Battery
Heater” is operating, charging
may complete ear lier than the
“Departure” time set. ( P.130)
●When the following operations are
performed while “Battery Heater”
is operating, the hybrid battery
(traction battery) heating opera-
tion stops.
• The shift lever is changed to any position other than P
• The Remote Air Conditioning Sys-
tem is operated ( P.399)
●“Battery Heater” may operate
even when the hybrid battery
(traction battery) is fully charged
depending on the temperature of
the hybrid battery (traction bat-
tery).
• The remaining charge of the
hybrid battery (traction battery)
decreases when “Battery Heater”
operates. The charging operation

1172-2. Charging
2
Plug-in hybrid system
may start again to charge the
hybrid battery (traction battery).
• “Charging Stopped Due to Pulled
Charging Connector” may be
shown when the charging connec-
tor is removed while recharging.
( P.153)
■“Battery Cooler”
●The charging indicator is illumi-
nated while “Battery Cooler” is on
standby or operating.
●“Battery Cooler” is implemented
for a maximum of approximately
30 minutes. However, when the
“Departure” time is set ( P.130)
and there is not sufficient time
between the current time and the
time that chargin g will complete,
“Battery Cooler” operation time
may become shorter.
●When there is a small amount of
remaining charge in the hybrid
battery (traction battery), even if
the hybrid battery (traction battery)
is hot, “Battery Cooler” may not be
implemented.
●When the traction battery is
almost completely charged, “Bat-
tery Cooler” may not be imple-
mented.
●When the following operations are
performed while “Battery Cooler”
is operating, the hybrid battery
(traction battery) cooling operation
stops.
• The hood is opened
• The power switch is turned to any mode other than off
• The Remote Air Conditioning Sys- tem is operated ( P.399)
• “Charge Now” is implemented
( P.131)
●“Battery Cooler” uses the power of
the hybrid battery (traction battery)
and external power source.
• While “Battery Cooler” is operat- ing, the amount of the remaining
charge of the hybrid battery (trac-
tion battery) increases and
decreases in a certain range, and
does not increas e as in normal charging.
• The operation of “Battery Cooler” is recognized as charging by a
charger. The charger that calcu-
lates the fee according to charging
time causes a charging fee.

1212-2. Charging
2
Plug-in hybrid system
the AC charging cable without
supervision. Also, keep the
AC charging cable out of
reach of infants.
 When charging with a char-
ger, follow the procedures for
using each charger.
 When charging using a public
charging facility, check the
setting of the charging sched-
ule function.
• When the charging schedule is
registered, temporarily turn off
the function or turn “Charge Now”
on. ( P.137, 142)
• When the charging schedule is set to on, charg ing will not start
even if the AC charging cable is
connected. Also, charging fee
may occur due to connection of
the AC charging cable.
Before charging, always check
the following items.
 The parking brake is applied.
( P.287)
 Lights such as the head-
lights, emergency flashers
and interior lights etc. are
turned off.
If these light switches are turned
on, then th ese features will con-
sume electricity, and charging time
will increase.
 The power switch is turned to
OFF. ( P.280) Before charging, make sure that
each part of the AC charging
cable is in good condition.
(
P.106)
■During charging
●The charging starting time may
differ depending on the state of
the vehicle, but this does not indi-
cate a malfunction.
●Cooling fan sounds may be heard
from near the rear seat. ( P.91)
●During charging, sounds may be
heard from near the hybrid battery
(traction battery) in accordance
with the operation of the air condi-
tioning system or “Battery Cooler”
( P.116).
●During and after charging, the rear
seat and its surrounding area in
which the onboard traction battery
charger is installed may get warm.
●The surface of the CCID
(Charging Circuit Interrupting
Device) may become hot, but this
does not indicate a malfunction.
●Depending on radio wave condi-
tions, interference may be heard
on the radio.
●The current charging condition
and the estimated time until
charging will complete can be
checked on the mu lti-information
display.
■Capacity reduction of the
hybrid battery (traction battery)
The capacity of the hybrid battery
(traction battery) will decline gradu-
ally when the hybrid battery (traction
battery) is in use. The rate at which
it declines will diff er in accordance
with environmental conditions and
the way in which the vehicle is used.
Observing the fo llowing can help
Confirm the following
before charging
Inspecting the AC
charging cable

1262-2. Charging
WARNING
■When charging
Observe the following precau-
tions.
Failure to do so may cause an
unexpected accident, resulting in
death or serious injury.
●Connect to a power source suit-
able for charging. ( P.111)
●Check that the AC charging
cable, plug and outlet are free of
foreign matter.
●Before charging, check that the
AC charging inlet is not
deformed, damaged or cor-
roded, and check that the inlet
is free of foreign matter such as
dirt, snow and ice.
If there is dirt or dust in these
areas, remove completely
before inserting the charging
connector.
●Do not get the terminals of the
AC charging inlet wet.
●Only use outlets where the plug
can be securely inserted.
●Do not bundle or wind the AC
charging cable while charging,
as doing so may result in over-
heating.
●Do not touch the terminals of
the charging connector and AC
charging inlet with a sharp metal
objects (needles etc.) or hands,
or short them with foreign
objects.
●When charging outdoors, make
sure to connect to a weather-
proof outlet for outdoor use.
Ensure the weatherproof outlet
cover closes completely. If the
weatherproof outlet cover can-
not be closed, install a weather-
proof outlet cover that will close.
●In order to stop charging at the
charging station, follow the
instructions of the charger.
●If any heat, smoke, odors, noise
or other abnormalities are
noticed during charging, stop
charging immediately.
●Do not insert the plug if the out-
let is submerge d in water or
snow.
●When charging while it is raining
or snowing, do not connect or
disconnect the plug if your
hands are wet. Also, do not get
the plug or outlet wet.
●Do not charge the vehicle
during a lightning storm.
●Prevent the AC charging cable
from being caught in the door or
back door.
●Do not let the wheels on the AC
charging cable, plug, charging
connector and CCID (Charging
Circuit Interru pting Device).
●Firmly insert the plug into the
outlet.
●Do not use an extension cord
and converting adaptor.
●Close the hood before using the
charging system. The cooling
fan may start operating sud-
denly. Touching or getting close
to rotating parts such as the fan
may cause your hands or
clothes (especially a necktie or
scarf) to becom e caught and
result in a serious injury.
●After connecting the charging
cable, confirm that it is not
wound around anything.