2023 TOYOTA RAV4 PLUG-IN HYBRID warning light

485
7
7-3. Do-it-yourself maintenance
Maintenance and care
mechanical key to lock/unlock the
doors.
●Start 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.
●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 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
■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 explosive. 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 battery 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 water with a sponge or
cloth while traveling to the nearest
medical facility.
●If electrolyte gets on your skin
Wash the affected 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. Immediately 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 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.

489
7 7-3. Do-it-yourself maintenance
Maintenance and care
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.541, 590)
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.541, 548, 559)
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.
With 7-inch display:
With 12.3-inch display:
■How to change the unit (with
7-inch display)
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.
3Press or of the meter
control switches on the steering
wheel and select .
4Press or of the meter
control switches and select
“Vehicle Settings”, and then
press and hold .
5Press or of the meter
control switches and select
“TPWS”, and then press .
6Press or to select “Set-
ting Unit”.
7Press or to select the
desired unit and then press .
■How to change the unit (with
12.3-inch display)
1Park the vehicle in a safe place
and turn the power switch off.
Changing the unit cannot be performed

491
7
7-3. Do-it-yourself maintenance
Maintenance and care
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 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.495)
■When 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
■Repairing or replacing tires, wheels, tire pressure warning
valves, transmitters and tire valve caps
●When 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.
●Make 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.
●When replacing tire valve caps, do not use tire valve caps other than
those specified. The cap may become stuck.
■To 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. After
use of liquid sealant, make sure to replace the tire pressure warning valve and transmitter when repairing
or replacing the tire. ( P.491)

4927-3. Do-it-yourself maintenance
■The 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.495)
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.
■How to initialize the tire pres-
sure warning system (with 7-
inch display)
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.590)
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
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-
Initializing the tire pressure
warning system

493
7 7-3. Do-it-yourself maintenance
Maintenance and care
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.
■How to initialize the tire pres-
sure warning system (with
12.3-inch display)
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.590)
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 and hold to display
the cursor on the content display
area (center) of the multi-infor-
mation display.
5Press or of the meter
control switches to select
and then press .
6Press or of the meter
control switches, select “
Vehicle Settings” and then press
and hold .7Press or of the meter
control switches, select “TPWS”
and then press .
8Press 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.
9Drive straight (with occasional
left and right turns) at approxi-
mately 40 km/h (25mph) or
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-

4947-3. Do-it-yourself maintenance
ing for 1 hour or more, park the vehicle
in a safe place for approximately 20
minutes and then drive the vehicle
again.
■When initializing
●Initialization is performed while driving
at a vehicle speed of approximately
40 km/h (25 mph) or more.
●Make 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.
●The 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.
■The initialization operation
●If 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.
●If 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.
●While 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.
■If the tire pressure warning system
is not initialized properly
●In 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.
●If 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.
●If 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.
●In 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-
able repairer.

495
7
7-3. Do-it-yourself maintenance
Maintenance and care
Every tire pressure warning valve
and transmitter has a unique ID
code. When replacing a tire pres-
sure warning valve and transmitter,
it is necessary to register the ID
code.
When registering the ID codes, per-
form the following procedure.
■Registering procedure (with 7-
inch display)
1 Park the vehicle in a safe place,
wait for approximately 20 min-
utes, and then start the hybrid
system.
2 Press or of the meter
control switches on the steering
wheel and select .
3 Press or of the meter
control switches and select
“Vehicle Settings”, and then
press and hold .
4 Press or of the meter
control switches and select
“TPWS”, and then press .
5 Press or of the meter
control switches and select
“Identifying Each Wheel & Posi-
tion”. Then press and hold
until the tire pressure warning
light starts slowly blinking 3
times.
The change wheel set mode is acti- vated and registration is started.
Then a message will be displayed on
the multi-information display.
When registration is being performed, the tire pressure warning light will blink
for approximately 1 minute then illumi- nate and “--” will be displayed for the inflation pressure of each tire on the
multi-information display.
6 Drive straight (with occasional
left and right turns) at approxi-
mately 40 km/h (25mph) or
more for approximately 10 to 30
minutes.
When registration is completed, the tire pressure warning light will go off and
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
WARNING
■When initializing the tire pres-sure warning system
Do not initialize tire inflation pressure without first adjusting the tire inflation pressure to the specified level. Other-
wise, the tire pressure warning light may not come on even if the tire infla-tion pressure is low, or it may come
on when the tire inflation pressure is actually normal.
Registering ID codes

4967-3. Do-it-yourself maintenance
more, registration can be completed by
driving for a long time. However, if reg-
istration does not complete after driving
for 1 hour or more, perform the proce-
dure again from the beginning.
7Initialize the tire pressure warn-
ing system. (P.492)
■Registering procedure (with
12.3-inch display)
1Park the vehicle in a safe place,
wait for approximately 20 min-
utes, and then start the hybrid
system.
2Press and hold to display
the cursor on the content display
area (center) of the multi-infor-
mation display.
3Press or of the meter
control switches to select
and then press .
4Press or of the meter
control switches and select
“ Vehicle Settings”, and
then press and hold .
5Press or of the meter
control switches and select
“TPWS”, and then press .
6Press or of the meter
control switches and select
“Identifying Each Wheel & Posi-
tion”. Then press and hold
until the tire pressure warning
light starts slowly blinking 3
times.
The change wheel set mode is acti-vated and registration is started.
Then a message will be displayed on
the multi-information display.
When registration is being performed,
the tire pressure warning light will blink
for approximately 1 minute then illumi-
nate and “--” will be displayed for the
inflation pressure of each tire on the
multi-information display.
7Drive straight (with occasional
left and right turns) at approxi-
mately 40 km/h (25mph) or
more for approximately 10 to 30
minutes.
When registration is completed, the tire
pressure warning light will go off and
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, registration can be completed by
driving for a long time. However, if reg-
istration does not complete after driving
for 1 hour or more, perform the proce-
dure again from the beginning.
8Initialize the tire pressure warn-
ing system. (P.492)
■When registering ID codes
●ID code registration is performed
while driving at a vehicle speed of
approximately 40 km/h (25 mph) or
more.
●Before performing ID code registra-
tion, make sure that no wheels with