fuel TOYOTA RAV4 PLUG-IN HYBRID 2021 Service Manual

455
6
6-1. Using the air conditi oning system and defogger
Interior features
• is operating
■Water droplets during air condi-
tioning operation
The outside heat exchanger, accumula -
tor 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.
However, it is not a malfunction.
Accumulator
Outside heat exchanger
■Fogging up of the windows
●The windows will ea sily fog up when
the humidity in the vehicle is high.
Turning “A/C” s witch on will dehumid- ify the air from the outlets and defog
the windshield effectively.
●If you turn “A/C” switch off, the win -
dows may fog up more easily.
●The windows may fog up if the recir -
culated air mode is used.
■While using “My Room Mode”
●It may not be possible to obtain the
intended defogging performance even
if is pressed. If the windows
need to be defogged before driving,
stop charging powe r and then press
.
●When the outside te mperature is low,
heating may feel insufficient due to
restricted operation of the air condi -
tioning. Heating cannot be performed when it is -10°C (14° F) 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 vehi -
cle.
■When driving o n dusty roads
Close all windows. If dust thrown up by
the vehicle is still d rawn into the vehicle
after closing the windows, it is recom - mended 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 recir culated air mode
temporarily is recommended in pre - venting dirty air from entering the
vehicle interior and helping to cool the
vehicle when the ou tside air tempera- ture is high.
●Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside tem-
perature.
■Operation of the air conditioning system in Eco drive mode
●In Eco drive mode, the air conditioning system is controlled as follows to pri -
oritize fuel efficiency:
• Engine speed and compressor opera - tion controlled to res trict heating/cool-
ing capacity
• Fan speed restrict ed when automatic mode is selected
●To improve air conditioning perfor - mance, perform the following opera -
tions:
• Turn off Eco drive mode ( →P.434) • Turn off blower customization
( →P.454)
■When the outside temperature falls
to nearly 0°C (32°F)
The dehumidification function may not operate even when “A/C” switch is
pressed.
■Ventilation and air conditioning
odors
●To let fresh air in, set the air condition -
ing system to the outside air mode.
A
B

4586-1. Using the air conditioning system and defogger
tributing to increased fuel effi-
ciency.
Front seat concentrated airflow
mode operates in t he following situ-
ations.
 No passengers are detected in
the rear seats
 The windshield defogger is not
operating
While operating, illuminates.
■Manually turning front seat
concentrated airflow mode
on/off
In front seat conc entrated airflow
mode, directing airflow to the front
seats only and to all seats can be
switched via swi tch operation.
When the mode has been switched
manually, automati c airflow control
stops operating.
Press the on the air condition -
ing operation panel and switch the
airflow.
 Indicator illuminated: Airflow to
the front seats only
 Indicator off: Airflow to all the
seats
■Operation of automatic airflow con -
trol
●In order to maintain a comfortable
interior, airflow may be directed to seats without passengers immediately
after the hybrid syst em is started and
at other times depending on the out -
side temperature.
●After the hybrid system is started, if
passengers move around inside or
enter/exit the vehicle, the system can - not accurately detec t the presence of
passengers and au tomatic airflow
control will not operate.
■Operation of manual airflow control
Even if the function is manually switched
to directing airflow to only the front
seats, when a rear seat is occupied, it may automatically di rect airflow to all
seats.
■To return to automatic airflow con -
trol
1 With the indicator off, turn the power switch off.
2 After 60 minutes or more elapse,
turn the power switch to ON.
■Location of air outlets
The air outlets and air volume
change according to the selected
air flow mode.
Air outlet layout and opera -
tions

4887-1. Maintenance and care
7-1.Maintenance and care
Working from top to bottom, lib-
erally apply water to the vehicle
body, wheel wells and underside
of the vehicle to remove any dirt
and dust.
 Wash the vehicle body using a
sponge or soft cloth, such as a
chamois.
 For hard-to-remove marks, use
car wash soap and rinse thor -
oughly with water.
 Wipe away any water.
 Wax the vehicle when the water-
proof coating deteriorates.
If water does not bead on a clean sur -
face, apply wax when the vehicle body
is cool.
■Before car washes
Check that the fuel filler door and charging port lid on your vehicle are
closed properly.
■Automatic car washes
●Before washing the vehicle:
• Fold the mirrors
• Turn off the power back door (if equipped)
Start washing from t he front of the vehi-
cle. Make sure to extend the mirrors
before driving.
●Brushes used in automatic car
washes may scratch the vehicle sur - face, parts (wheel, etc.) and harm
your vehicle’s paint.
●Rear spoiler may not be washable in
some automatic c ar washes. There
may also be an increased risk of dam - age to vehicle.
■High pressure car washes
As water may enter the cabin, do not
bring the nozzle tip near the gaps around the doors or perimeter of the
windows, or spray th ese areas continu-
ously.
■Note for a smart e ntry & start sys- tem
If the door handle becomes wet while
the electronic key is within the effective range, the door may lock and unlock
repeatedly. In that c ase, follow the fol-
lowing correction procedures to wash the vehicle:
●Place the key in a position 2 m (6 ft.) or more separate from the vehicle
while the vehicle is being washed.
(Take care to ensur e that the key is not stolen.)
●Set the electronic key to battery-sav - ing mode to disable the smart entry &
start system. ( →P.224)
■Wheels and wheel ornaments
●Remove any dirt immediately by using
a neutral detergent.
●Wash detergent of f with water imme-
diately after use.
●To protect the paint from damage,
make sure to observe the following
precautions. • Do not use acidic, alkaline or abrasive
detergent.
• Do not use hard brushes.
• Do not use deterg ent on the wheels when they are hot, such as after driv -
ing or parking in hot weather.
Cleaning and protecting
the vehicle exterior
Perform the following to pro -
tect the vehicle and maintain it
in prime condition:
Cleaning instructions

497
7
7-3. Do-it-yours elf maintenance
Maintenance and care
WARNING
■When working on the engine
compartment
●Make sure that “IGNITION ON” on the multi-information display and
the “READY” indicat or are both off.
●Keep hands, clothing and tools
away from the moving fan.
●Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as
they may be hot. Oil and other flu - ids may also be hot.
●Do not leave anyt hing that may burn easily, such as paper and
rags, in the engi ne compartment.
●Do not smoke, cause sparks or
expose an open flame to fuel or the
12-volt battery. Fu el and 12-volt battery fumes are flammable.
●Take care because brake fluid can harm your hands or eyes and dam -
age painted surfac es. If fluid gets
on your hands or in your eyes, flush the affected area with clean water
immediately. If you still experience
discomfort, consult a doctor.
■When working near the electric
cooling fan or radiator grille
Be sure the power switch is off.
With the power swi tch in ON, the
electric cooling fan may automatically start to run if the air conditioning is on
and/or the coolant temperature is
high. ( →P.504)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.,
from getting in your eyes.
NOTICE
■If you remove th e air cleaner fil-
ter
Driving with the air cleaner filter removed may cause excessive
engine wear due to dirt in the air.
■If the fluid level is low or high
It is normal for the br ake fluid level to
go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refill -
ing, it may indicate a serious problem.

529
7
7-3. Do-it-yours elf maintenance
Maintenance and care
complete when the tire pressure warn-
ing light turns off and the inflation pres -
sure of each tire is displayed on the
multi-information display.
■Effects of incorrect tire inflation
pressure
Driving with incorrect tire inflation pres -
sure may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor handling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drive train
If a tire needs frequent inflating, have it
checked by any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer.
■Instructions for checking tire infla -
tion pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.If your vehicle has been parked for at
least 3 hours or has not been driven
for more than 1.5 km or 1 mile, you will get an accurate cold tire inflation
pressure reading.
●Always use a tire pressure gauge.
It is difficult to judge if a tire is properly
inflated based only on its appearance.
●It is normal for the tire inflation pres-
sure to be higher after driving as heat is generated in the tire. Do not reduce
tire inflation pre ssure after driving.
●Passengers and luggage weight
Tire inflation pressure
Make sure to maintain the
proper tire inflation pressure.
Tire inflation pressure should
be checked at least once per
month. However, Toyota rec -
ommends that tire inflation
pressure be checked once
every two weeks. ( →P.624)

8
559
8
When trouble arises
When trouble arises
8-1. Essential information
Emergency flashers .......... 560
If your vehicle has to be
stopped in an emergency 560
If the vehicle is trapped in rising
water ............................... 561
8-2. Steps to take in an emer -
gency
If your vehicle needs to be
towed .............................. 563
If you think something is wrong
....................................... 566
If a warning light turns on or a
warning buzzer sounds... 568
If a warning message is dis -
played ............................. 578
If you have a flat tire (vehicles
without spare tire) ........... 582
If you have a flat tire (vehicles
with spare tire) ................ 593
If the hybrid system will not
start ................................ 601
If you lose your keys ......... 603
If the fuel filler door cannot be
opened ........................... 603
If the electronic key does not
operate properly ............. 604
If the 12-volt battery is dis -
charged .......................... 606
If your vehicle overheats... 611
If the vehicle becomes stuck
....................................... 615

575
8
8-2. Steps to take in an emergency
When trouble arises
■Tire pressure warning light*
*: This light illuminates on the multi-information display.
■Low fuel level warning light
■Driver’s and front passenger’s seat belt reminder light (warnin g
buzzer)*
*: Driver’s and front passenger’ s seat belt warning buzzer:
The driver’s and front passenger’s seat belt warning buzzer sou nds to alert the
driver and front pass enger that his or her seat belt is not fastened. If the seat belt
is unfastened, the buzzer sounds intermittently for a certain period of time after
the vehicle reaches a certain speed.
Warning lightDetails/Actions
When the light comes on af ter blinking for approxi-
mately 1 minute (a buzzer does not sound):
Malfunction in the tire pressure warning system
→ Have the system checked by any authorized
Toyota retailer or Toyota authorized repairer,
or any reliable repairer.
When the light comes on (a buzzer sounds):
Low tire inflation press ure from natural causes
→ Adjust the tire inflation pressure to the speci-
fied cold tire inflation pressure level. ( →P.624)
Low tire inflation pressure from flat tire
→ Immediately stop the vehicle in a safe place.
Handling method ( →P.576)
Warning lightDetails/Actions
Indicates that remaining fuel is approximately 8.3 L
(2.2 gal., 1.8 I mp. gal.) or less
→ Refuel the vehicle.
Warning lightDetails/Actions
Warns the driver and/or front passenger to fasten
their seat belts
→ Fasten the seat belt.
If the front passenger’s seat is occupied, the
front passenger’s seat belt also needs to be
fastened to make the w arning light (warning
buzzer) turn off.

5768-2. Steps to take in an emergency
■Rear passengers’ seat belt reminder lights*1 (warning buzzer)*2
*1: This light illuminates on the multi-information display.
*2: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert the rear passen-
ger that his or her seat belt is not fastened. If the seat belt is unfastened, the
buzzer sounds intermittently for a certain period of time after the vehicle reaches
a certain speed.
■Warning buzzer
In some cases, the b uzzer may not be heard because of noisy place or an
audio sound.
■Front passenger detection sensor,
seat belt reminder and warning buzzer
●If luggage is place d on the front pas-
senger seat, the front passenger detection sensor may cause the warn -
ing light to flash and the warning
buzzer to sound even if a passenger is not sitting in the seat.
●If a cushion is place d on the seat, the sensor may not detect a passenger,
and the warning light may not operate
properly.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will
come on if the fuel tank becomes com- pletely empty. If the fuel tank is empty,
refuel the vehicle i mmediately. The mal-
function indicator lamp will go off after several trips.
If the malfunction in dicator lamp does
not go off, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer as soon
as possible.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge
becomes insufficien t or the voltage tem-
porarily drops, the electric power steer -
ing system warning light may come on and the warning buzzer may sound.
At this time, the func tions of the air con-
ditioning, etc. may be partially limited in order to reduce the power consumption
of the 12-volt battery.
■When the tire pressure warning
light comes on
Inspect the tires to check if a tire is
punctured.
If a tire is punctured: →P.582, 593
If none of the tires are punctured:
Turn the power switch to OFF then turn
it to ON. Check if the tire pressure warn - ing light comes on or blinks.
If the tire pressure warning light blinks
for approximately 1 minute then stays
on
There may be a malfunction in the tire
pressure warning system. Have the
vehicle inspected by any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immedi -
ately.
If the tire pressure warning light
comes on
1 After the temperature of the tires has
lowered sufficiently, check the infla - tion pressure of each tire and adjust
them to the specified level.
2 If the warning light does not turn off
even after several minutes have
Warning lightDetails/Actions
Warns the rear passengers to fasten their seat belts
→ Fasten the seat belt.

579
8
8-2. Steps to take in an emergency
When trouble arises
A warning message about an operation
of the brake pedal m ay be shown while
the driving suppor t systems such as
PCS (Pre-Collis ion system) (if
equipped) or the dynamic radar cruise
control with full- speed range (if
equipped) is operating. If a warning
message is shown, be sure to deceler -
ate the vehicle or follow an instruction
shown on the multi-in formation display.
• A warning message is shown when
Brake Override System operates. ( →P.301, 574)
• A warning message is shown when
Drive-Start Control or Parking Support Brake function (if equipped) operates
( →P.301, 420). Follow the instructions
on the multi-information display.
●If a message about an operation of
the power switch is shown
An instruction for operation of the power
switch is shown when the incorrect pro -
cedure for starting the hybrid system is
performed or the power switch is oper -
ated incorrectly. Follow the instructions
shown on the multi-in formation display
to operate the pow er switch again.
●If a message about a shift lever opera-
tion is shown
To prevent the shift lever from being
operated incorrectly or the vehicle from
moving unexpectedly, a message that
requires shifting the shift lever may be
shown on the multi-in formation display.
In that case, follow the instruction of the
message and shift the shift lever.
●If a message or image about an
open/close state of a part or replen-
ishment of a consumable is shown
Confirm the part indicated by the multi-
information display or a warning light,
and then perform the coping method
such as closing the open door or replen -
ishing a consumable.
■If a message that indicates the
need for visiting any authorized Toyota retailer or Toyota autho -
rized repairer, or any reliable
repairer is displayed
The system or part sh own on the multi-
information display is malfunctioning.
Have the vehicle inspected by any authorized Toyota r etailer or Toyota
authorized repairer, or any reliable
repairer immediately.
■If a message that indicates the need for referring to Owner’s Man -
ual is displayed
●If the following messages are shown,
follow the instructions, accordingly.
• “Blind Spot Monitor Unavailable” ( →P.394, 578)
• “RCTA Unavailable” ( →P.394, 578)
• “Engine Coolant Temp High” ( →P.611)
• “Exhaust Filter Full” ( →P.437)
●If the following messages are shown,
there may be a malfunction. Immedi -
ately stop the vehicle in a safe place and contact any authorized Toyota
retailer or Toyota authorized repairer,
or any reliable repairer. Continuing to drive the vehicle may be dangerous.
• “Plug-in charging system malfunction”
• “Hybrid System Malfunction” • “Charging System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunction” • “Accelerator System Malfunction”
• “Smart Entry & Start System Malfunc -
tion”
●If the following messages are shown,
there may be a malfunction. Immedi - ately have the vehi cle inspected by
any authorized Toyota retailer or
Toyota authorized repairer, or any reli -
able repairer. • “Oil Pressure Low”
• “Braking Power Low”
●If any of the following messages are
shown on the multi-information dis -
play, the vehicle ma y have run out of fuel. Stop the vehicle in a safe place
and, if the fuel leve l is low, refuel the

5928-2. Steps to take in an emergency
WARNING
●If the vehicle does not drive straight
or you feel a pull through the steer -
ing wheel, stop the vehicle and check the following.
• Tire condition. The tire may have
separated from the wheel.
• Tire inflation pressure. If the tire
inflation pressure is 130 kPa (1.3
kgf/cm2 or bar, 19 psi) or less, the tire may be severely damaged.
NOTICE
■When performing an emergency
repair
●A tire should only be repaired with
the emergency tire puncture repair
kit if the damage is caused by a sharp object such as nail or screw
passing through the tire tread.
Do not remove the sharp object from the tire. Removing the object
may widen the opening and disen -
able emergency repair with the
repair kit.
●The repair kit is not waterproof.
Make sure that the repair kit is not exposed to water, s uch as when it
is being used in the rain.
●Do not put the repa ir kit directly
onto dusty ground such as sand at
the side of the road. If the repair kit vacuums up dust etc., a malfunc -
tion may occur.
●Make sure to stand the kit with the
bottle vertical. The kit cannot work
properly if it is laid on its side.
■Precautions for the emergency
tire puncture repair kit
●The repair kit power source should
be 12 V DC suitable for vehicle use.
Do not connect the repair kit to any other source.
●If fuel splatters on the repair kit, the repair kit may det eriorate. Take
care not to allow fu el to contact it.
●Place the repair kit in a storage to
prevent it from being exposed to dirt
or water.
●Store the repair ki t in the luggage
compartment out of reach of chil - dren.
●Do not disassemble or modify the repair kit. Do not subject parts such
as the air pressure indicator to
impacts. This ma y cause a mal- function.
■To avoid damage to the tire pres - sure warning valves and trans -
mitters
When a tire is repa ired with liquid sealants, the tire pressure warning
valve and transmitter may not operate
properly. If a liquid sealant is used, contact any authorized Toyota retailer
or Toyota authoriz ed repairer, or any
reliable repairer or other qualified ser - vice shop as soon as possible. After
use of liquid sealant, make sure to
replace the tire pressure warning valve and transmitter when repairing
or replacing the tire. ( →P.511)