2022 TOYOTA RAV4 PLUG-IN HYBRID light

4507-3. Do-it-yourself maintenance
7-3.Do-it-y ours elf main ten ance
Do-it-yourself service
precautions
If you perform maintenance by
yourself, be sure to follow the
correct procedure as given in
these sections.
Maintenance
ItemsParts and tools
12-volt battery
condition
( P.460)
•Grease
• Conventional
wrench (for terminal
clamp bolts)
Engine/power
control unit
coolant level
( P.457)
• “Toyota Super Long
Life Coolant” or a
similar high quality
ethylene glycol-
based non-silicate,
non-amine, non-
nitrite and non-
borate coolant with
long-life hybrid
organic acid technol-
ogy
“Toyota Super Long
Life Coolant” is pre-
mixed with 50%
coolant and 50%
deionized water.
• Funnel (used only
for adding coolant)
Engine oil level
( P.455)
• “Toyota Genuine
Motor Oil” or equiva-
lent
• Rag or paper towel
• Funnel (used only
for adding engine
oil)
Fuses
( P.488)
• Fuse with same
amperage rating as
original
DC/DC Con-
verter air
intake vent
( P.479)
• Vacuum cleaner,
etc,
• Phillips screwdriver
Light bulbs
( P.491)
• Bulb with same
number and watt-
age rating as origi-
nal
• Phillips-head screw-
driver
• Flathead screw-
driver
•Wrench
Radiator and
condenser
( P.458)

Tire inflation
pressure
( P.472)
• Tire pressure gauge
• Compressed air
source
Washer fluid
( P.459)
• Water or washer
fluid containing anti-
freeze (for winter
use)
• Funnel (used only
for adding water or
washer fluid)
WARNING
The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or
become electrically energized. To avoid death or serious injury, observe the following precautions.
ItemsParts and tools

451
7
7-3. Do-it-yourself maintenance
Maintenance and care
WARNING
QWhen working on the engine compartment
OMake sure that “IGNITION ON” on the multi-information display and the “READY” indicator are both off.
OKeep hands, clothing and tools away from the moving fan.
OBe 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.
ODo not leave anything that may burn easily, such as paper and
rags, in the engine compartment.
ODo not smoke, cause sparks or
expose an open flame to fuel. Fuel fumes are flammable.
OTake care because brake fluid can harm your hands or eyes and dam-age painted surfaces. 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.
QWhen working near the electric
cooling fan or radiator grille
Be sure the power switch is off. With the power switch 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.458)
QSafety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc., from getting in your eyes.
NOTICE
QIf you remove the air cleaner fil-ter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt in the air.
QIf the fluid level is low or high
It is normal for the brake 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.

4527-3. Do-it-yourself maintenance
1Pull the hood lock release lever.
The hood will pop up slightly.
2Push the auxiliary catch lever to
the left and lift the hood.
3 Hold the hood open by inserting
the supporting rod into the slot.Hood
Release the lock from the
inside of the vehicle to open
the hood.
Opening the hood
WARNING
QPre-driving check
Check that the hood is fully closed
and locked. If the hood is not locked properly, it
may open while the vehicle is in motion and cause an accident, which may result in death or serious injury.
QTo prevent burns
Do not touch the pipes when the com-
pressor is operating or after it is stopped, because the pipes are hot.
Touching by hands before the pipes
cool down may cause burns.
QAfter installing the support rod
into the slot
Make sure the rod supports the hood securely from falling down on to your
head or body.

461
7
7-3. Do-it-yourself maintenance
Maintenance and care
doors.
OStart the hybrid system with the power switch in ACC. The hybrid system
may not start with the power switch turned off. However, the hybrid sys-tem will operate normally from the
second attempt.
OThe power switch mode is recorded
by the vehicle. If the 12-volt battery is reconnected, the vehicle will return the power switch mode to the status it
was in before the 12-volt battery was disconnected. Make sure to turn off the power switch before disconnect
the 12-volt battery. Take extra care when connecting the 12-volt battery if the power switch mode prior to dis-
charge is unknown.
If the hybrid system will not start even after multiple attempts at all methods
above, contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
WARNING
QChemicals in the 12-volt battery
The 12-volt battery contains poison- ous and corrosive sulfuric acid and
may produce hydrogen gas which is flammable and explosive. To reduce the risk of death or serious injury, take
the following precautions while work- ing on or near the 12-volt battery:
ODo not cause sparks by touching the 12-volt battery terminals with tools.
ODo not smoke or light a match near the 12-volt battery.
OAvoid contact with eyes, skin and clothes.
ONever inhale or swallow electrolyte.
OWear protective safety glasses when working near the 12-volt bat-tery.
OKeep children away from the 12-volt battery.
QWhere 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 not sufficient
ventilation.
QEmergency measures regarding
electrolyte
OIf electrolyte gets in your eyes
Flush your eyes with clean water for
at least 15 minutes and get immediate
medical attention. If possible, con-
tinue to apply water with a sponge or
cloth while traveling to the nearest
medical facility.
OIf electrolyte gets on your skin
Wash the affected area thoroughly. If
you feel pain or burning, get medical
attention immediately.
OIf 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.
OIf you accidentally swallow electro- lyte
Drink a large quantity of water or milk.
Get emergency medical attention
immediately.
QWhen there is insufficient 12-volt
battery fluid
Do not use if there is insufficient fluid in the 12-volt battery. There is a pos-
sible danger that the 12-volt battery may explode.

465
7 7-3. Do-it-yourself maintenance
Maintenance and care
every 5000 km (3000 miles).
Do not fail to initialize the tire pressure
warning system after tire rotation.
Front
QWhen rotating the tires
Make sure that the power switch is OFF.
If the tires are rotated while the power
switch is in ON, the tire position informa-
tion will not be updated.
If this accidentally occurs, either turn the
power switch to OFF and then to ON, or
initialize the system after checking that
the tire pressure is properly adjusted.
Your vehicle is equipped with a tire
pressure warning system that uses
tire pressure warning valves and
transmitters to detect low tire infla-
tion pressure before serious prob-
lems arise.
The tire pressure warning system
of this vehicle adopts a 2-type
warning system
When “Adjust Pressure” is dis-
played (Normal Warning)
The tire pressure warning light comes
on and a buzzer sounds when the tire inflation pressure becomes low due to
natural air leakage or outside tempera-
ture. (Ways of coping: P.515, 564)
When “Immediately Check tire
when Safe” is displayed (Emer-
gency Warning)
The tire pressure warning light comes
on and a buzzer sounds when the tire
inflation pressure becomes low sud-
denly due to a blowout. (Ways of cop-
ing: P.515, 522, 533)
However, the system may not be able
to detect sudden tire ruptures (bursting,
etc.).
The tire pressure detected by the
tire pressure warning system can
be displayed on the multi-informa-
tion display.
The unit can be changed.
QHow to change the unit
1Park the vehicle in a safe place
and turn the power switch off.
Changing the unit cannot be performed
while the vehicle is moving.
2Turn the power switch to ON.
Tire pressure warning sys-
tem
A

467
7
7-3. Do-it-yourself maintenance
Maintenance and care
taken for the warning to start or go off
could be extended.
OWhen tire inflation pressure declines
rapidly for example when a tire has burst, the warning may not function.
QWarning performance of the tire pressure warning system
The warning of the tire pressure warning system will change in accordance with the conditions under which it was initial-
ized. For this reason, the system may give a warning even if the tire pressure does not reach a low enough level, or if
the pressure is higher than the pressure that was adjusted to when the system was initialized.
When replacing tires or wheels, tire
pressure warning valves and trans-
mitters must also be installed.
When new tire pressure warning
valves and transmitters are
installed, new ID codes must be
registered in the tire pressure warn-
ing computer and the tire pressure
warning system must be initialized.
( P.470)
QWhen replacing the tires and wheels
If the ID code of the tire pressure warn-
ing valve and transmitter is not regis- tered, the tire pressure warning system will not work properly. After driving for
about 10 minutes, the tire pressure warning light blinks for 1 minute and stays on to indicate a system malfunc-
tion.
Installing tire pressure warn-
ing valves and transmitters
NOTICE
QRepairing or replacing tires, wheels, tire pressure warning
valves, transmitters and tire valve caps
OWhen removing or fitting the
wheels, tires or the tire pressure warning valves and transmitters, contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer as the tire pressure warning valves
and transmitters may be damaged if not handled correctly.
OMake sure to install the tire valve caps. If the tire valve caps are not installed, water could enter the tire
pressure warning valves and the tire pressure warning valves could be bound.
OWhen replacing tire valve caps, do not use tire valve caps other than
those specified. The cap may become stuck.
QTo avoid damage to the tire pres-sure warning valves and trans-mitters (vehicles without spare
tire)
When a tire is repaired 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 authorized repairer, or any reliable repairer or other qualified ser-vice shop as soon as possible. Make
sure to replace the tire pressure warn- ing valve and transmitter when repair-ing or replacing the tire. ( P.465,
474)

4687-3. Do-it-yourself maintenance
QThe tire pressure warning sys-
tem must be initialized in the
following circumstances:
When rotating the tires.
When changing the tire.
After registering the ID codes.
(P.470)
When changing between two
registered wheel sets.
When the tire pressure warning
system is initialized, the current tire
inflation pressure is set as the
benchmark pressure.
QHow to initialize the tire pres-
sure warning system
1Park the vehicle in a safe place
and stop the hybrid system for
20 minutes or more.
Initialization cannot be performed while
the vehicle is moving.
2Adjust the tire inflation pressure
to the specified cold tire inflation
pressure level. (P.564)
Make sure to adjust the tire pressure to
the specified cold tire inflation pressure
level. The tire pressure warning system
will operate based on this pressure
level.
3Start the hybrid system.4Press or of the meter
control switches on the steering
wheel and select .
5Press or of the meter
control switches, select “Vehi-
cle Settings” and then press and
hold .
6Press or of the meter
control switches, select “TPWS”
and then press .
7Press or of the meter
control switches, select the “Set-
ting Pressure”. Then press and
hold .
“Set Pressure Accepted” will be dis-
played on the multi-information display
and the tire pressure warning light will
blink 3 times.
When the message disappears, initial-
ization is complete.
A message is displayed on the multi-
information display. Also, “--” is dis-
played for inflation pressure of each tire
on the multi-information display while
the tire pressure warning system deter-
mines the position.
8Drive straight (with occasional
left and right turns) at approxi-
mately 40 km/h (25mph) or
Initializing the tire pressure
warning system

469
7 7-3. Do-it-yourself maintenance
Maintenance and care
more for approximately 10 to 30
minutes.
When initialization is complete, the
inflation pressure of each tire will be
displayed on the multi-information dis-
play.
Even if the vehicle is not driven at
approximately 40 km/h (25 mph) or
more, initialization can be completed by
driving for a long time. However, if ini-
tialization does not complete after driv-
ing for 1 hour or more, park the vehicle
in a safe place for approximately 20
minutes and then drive the vehicle
again.
QWhen initializing
OInitialization is performed while driving
at a vehicle speed of approximately
40 km/h (25 mph) or more.
OMake sure to carry out initialization
after adjusting the tire inflation pres-
sure. Also, make sure the tires are
cold before carrying out initialization
or tire inflation pressure adjustment.
OThe tire pressure warning system can
be initialized by yourself, but depend-
ing on the driving conditions and driv-
ing environment, initialization may
take some time to complete.
QThe initialization operation
OIf you have accidentally turned the
power switch to OFF during initializa-
tion, it is not necessary to restart the
initialization again as initialization will
restart automatically when the power
switch has been turned to ON for the
next time.
OIf you accidentally perform initializa-
tion when initialization is not neces-
sary, adjust the tire inflation pressure
to the specified level when the tires
are cold, and conduct initialization
again.
OWhile the position of each tire is being
determined and the inflation pres-
sures are not being displayed on the
multi-information display, if the infla-tion pressure of a tire drops, the tire
pressure warning light will come on.
QIf the tire pressure warning system
is not initialized properly
OIn the following situations, initialization
may take longer than usual to be com-
pleted or may not be possible. Nor-
mally, initialization completes within
approximately 30 minutes.
• Vehicle is not driven at approximately
40 km/h (25 mph) or more
• Vehicle is driven on unpaved roads
• Vehicle is driven near other vehicles
and system cannot recognize tire
pressure warning valve and transmit-
ters of your vehicle over those of other
vehicles.
• If the vehicle is driven in heavy traffic
or another situation where other vehi-
cles are driven close by, it may take
time for the system to recognize the
tire pressure warning valve and trans-
mitters of your vehicle over those of
other vehicles.
OIf initialization does not complete after
driving for 1 hour or more, park the
vehicle in a safe place for approxi-
mately 20 minutes and then drive the
vehicle again.
OIf the vehicle is reversed during initial-
ization, the data up to that point is
reset, so perform the initialization pro-
cedure again from the beginning.
OIn the following situations, initialization
will not be started or was not com-
pleted properly and the system will not
operate properly. Perform the initial-
ization procedure again.
• If, when attempting to start initializa-
tion, the tire pressure warning light
does not blink 3 times.
• If, when the vehicle has been driven
for about 20 minutes after performing
initialization, the tire pressure warning
light blinks for approximately 1 minute
and then illuminates.
If initialization cannot be completed after
performing the above procedure, con-
tact any authorized Toyota retailer or
Toyota authorized repairer, or any reli-