maintenance TOYOTA RAV4 PLUG-IN HYBRID 2021 Owner's Guide

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Maintenance and care
doors.
●Start the hybrid system with the power
switch in ACC. The hybrid system
may not start with the power switch turned off. Howeve r, the hybrid sys-
tem will operate normally from the
second attempt.
●The 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 b efore disconnect
the 12-volt battery. Take extra care when connecting the 12-volt battery if
the power switch m ode prior to dis-
charge is unknown.
If the hybrid system will not start even
after multiple attem pts at all methods
above, contact any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer.
WARNING
■Chemicals 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 expl osive. To reduce the risk of death or serious injury, take
the following precautions while work -
ing on or near the 12-volt battery:
●Do not cause sparks by touching
the 12-volt batter y terminals with tools.
●Do not smoke or light a match near the 12-volt battery.
●Avoid contact with eyes, skin and clothes.
●Never inhale or swallow electrolyte.
●Wear protective safety glasses
when working near the 12-volt bat- tery.
●Keep children away from the 12-volt battery.
■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 not sufficient
ventilation.
■Emergency measures regarding
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, con-
tinue to apply wate r with a sponge or
cloth while traveling to the nearest
medical facility.
●If electrolyte g ets on your skin
Wash the affec ted area thoroughly. 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. Immediat ely take off the
clothing and follow the procedure
above if necessary.
●If you accidentally swallow electro -
lyte
Drink a large quantity of water or milk.
Get emergency medical attention
immediately.
■When there is insu fficient 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.

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1Open the deck board (→P.472)
2 Disengage the 13 claws and pull
the luggage side cover to
remove it.
When installing the luggage side cover,
make sure that the c laws are installed securely.
Make sure that the 12-volt battery
terminals are not corroded and that
there are no loose connections,
cracks, or loose clamps.
Terminals
Hold-down clamp
Check the battery condition by indi -
cator color.
Blue: Good condition
Red: Charging is necessary.
Have the vehicle inspected by any
authorized Toyota r etailer or Toyota
authorized repairer, or any reliable
repairer.
Clear: Not working properly.
Add distilled wate r or replace
the battery.
Have the vehicle inspected by any
authorized Toyota r etailer or Toyota
authorized repairer, or any reliable
NOTICE
■When recharging the 12-volt bat -
tery
Never recharge the 12-volt battery while the hybrid system is operating.
Also, be sure all accessories are
turned off.
Removing the 12-volt bat -
tery cover
Exterior
Checking the battery condi -
tion
A
B
A
B
C

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Maintenance and care
repairer.
Check if the treadwear indicators
are showing on the tires. Also
check the tires fo r uneven wear,
such as excessiv e wear on one
side of the tread.
Check the spare ti re condition and
pressure if not rotated.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicators is
shown by a “TWI” or “ ” marks, etc.,
Tires
Replace or rotate tires in
accordance with maintenance
schedules and treadwear.
Checking tires
A
B
C

5107-3. Do-it-yourself maintenance
molded into the sidewall of each tire.
Replace the tires if the treadwear indi -
cators are showing on a tire.
■When to replace your vehicle’s
tires
Tires should be replaced if:
●The treadwear indicators are showing on a tire.
●You have tire damage such as cuts, splits, cracks deep enough to expose
the fabric, and bulges indicating inter -
nal damage.
●A tire goes flat repeatedly or cannot
be properly repaired due to the size or location of a cut or other damage.
If you are not sure, consult with any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
■Tire life
Any tire over 6 y ears old must be checked by a qualified technician even if
it has seldom or never been used or
damage is not obvious.
■If the tread on snow tires wears down below 4 mm (0.16 in.)
The effectiveness of t he tires as snow
tires is lost.
Rotate the tires in the order shown.
To equalize tire wear and help extend
tire life, Toyota re commends that tire
rotation is carried out approximately
WARNING
■When inspecting or replacing tires
Observe the following precautions to
prevent accidents. Failure to do so may cause damage
to parts of the driv e train as well as
dangerous handling c haracteristics, which may lead to an accident result -
ing in death or serious injury.
●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably
different treadwear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and
snow tires.
●Do not use tires that have been
used on another vehicle.
Do not use tires if you do not know how they were used previously.
●Vehicles with compact spare tire: Do not tow if your vehicle has a
compact spare tire installed.
●Vehicles with emergency tire punc -
ture repair kit: Do not tow anything
if a tire that has been repaired using the emergency tire puncture repair
kit is installed. The load on the tire
may cause unexpec ted damage to the tire.
NOTICE
■Driving on rough roads
Take particular care when driving on
roads with loose sur faces or potholes. These conditions may cause losses in
tire inflation pressure, reducing the
cushioning ability of the tires. In addi - tion, driving on rough roads may
cause damage to the tires them -
selves, as well as the vehicle’s wheels and body.
■If tire inflation pressure of each tire becomes low while driving
Do not continue drivi ng, or your tires
and/or wheels may be ruined.
Tire rotation

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Maintenance and care
every 5000 km (3000 miles).
Do not fail to initial ize the tire pressure
warning system after tire rotation.
Front
■When 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 equi pped 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.575, 624)
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.575, 582, 593)
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.
■How to change the unit
1 Park the vehicle in a safe place
and turn the power switch off.
Changing the unit cannot be performed while the vehicle is moving.
2 Turn the power switch to ON.
Tire pressure warning sys-
tem
A

5127-3. Do-it-yourself maintenance
3Press or of the meter
control switches on the steering
wheel and select .
4 Press or of the meter
control switches and select
“Vehicle Settings”, and then
press and hold .
5 Press or of the meter
control switches and select
“TPWS”, and then press .
6 Press or to select “Set-
ting Unit”.
7 Press or to select the
desired unit and then press .
■Routine tire inflation pressure checks
The tire pressure w arning system does
not replace routine tire inflation pressure checks. Make sure to check tire inflation
pressure as part of your routine of daily
vehicle checks.
■Tire inflation pressure
●It may take a few minutes to display
the tire inflation pressure after the
power switch is turned to ON. It may also take a few minutes to display the
tire inflation pressu re after inflation
pressure has been adjusted.
●Tire inflation pre ssure changes with
temperature. The displayed values may also be different from the values
measured using a tire pressure
gauge.
■Situations in which the tire pres - sure warning system may not oper -
ate properly
●In the following cases, the tire pres -
sure warning system may not operate
properly. • If non-genuine Toyota wheels are
used.
• A tire has been r eplaced with a tire that is not an OE (Original Equipment)
tire.
• A tire has been r eplaced with a tire that is not of the specified size.
• Tire chains, etc. are equipped.
• An auxiliary-supporte d run-flat tire is equipped.
• If a window tint tha t affects the radio
wave signals is installed. • If there is a lot of snow or ice on the
vehicle, particularly around the wheels
or wheel housings. • If the tire inflation pressure is
extremely higher t han the specified
level. • If wheels without tire pressure warning
valves and transmitters are used.
• If the ID code on the tire pressure warning valves and transmitters is not
registered in the tire pressure warning
computer.
●Performance may be affected in the
following situations. • Near a TV tower, electric power plant,
gas station, radio station, large dis -
play, airport or ot her facility that gen- erates strong radio waves or electrical
noise
• When carrying a port able radio, cellu-
lar phone, cordless phone or other wireless communication device
If tire position information is not cor -
rectly displayed due to the radio wave conditions, the display may be cor -
rected by driving and changing the
radio wave conditions.
●When the vehicle is parked, the time

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Maintenance and care
taken for the warning to start or go off
could be extended.
●When tire inflation pressure declines
rapidly for example when a tire has burst, the warning may not function.
■Warning performance of the tire
pressure warning system
The warning of the tire pressure warning
system will change i n accordance with
the conditions under which it was initial - ized. For this reaso n, 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.
■Certification for tire pressure warning system

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