2023 TOYOTA PRIUS PRIME Power

5167-3. Do-it-yourself maintenance
tion.
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 posi-
tion information 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 inflation pressure before
serious problems arise.
The tire pressure warning sys-
tem of this vehicle adopts a 2-
type warning system.
 When “Adjust Pressure” is
displayed (Normal Warning)
The tire pressure warning light
comes on and a buzzer sounds
when the tire infl ation pressure
becomes low due to natural air
leakage or outside temperature. (Ways of coping:
P.561, 605)
 When “Immediately Check
tire when Safe” is displayed
(Emergency Warning)
The tire pressure warning light
comes on and a buzzer sounds
when the tire inflation pressure
becomes low suddenly due to a
blowout. (Ways of coping: P.561,
574)
However, the sys tem may not be
able to detect sudden tire ruptures
(bursting, etc.).
 The tire pressure detected by
the tire pressure warning sys-
tem can be displayed on the
multi-information display.
( P.161)
The illustration us ed is intended as
an example, and may differ from
the image that is actually displayed
on the multi-information display.
■How to change the unit
1 Park the vehicle in a safe
place and turn the power
switch off.
Changing the unit cannot be per-
formed while the vehicle is moving.
2Start the hybrid system.
Tire pressure warning
system
A

5177-3. Do-it-yourself maintenance
7
Maintenance and care
3Use the meter control
switches ( P.162) to select
(  P.166).
4 Use the meter control
switches to select , then
press and hold .
5 Use the meter control
switches to select “TPWS
setting”, then press .
6 Use the meter control
switches to select “Pressure
unit setting”, then press .
7 Use the meter control
switches to select the desired
unit and then press .
■Routine tire inflation pressure
checks
The tire pressure warning 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 dis-
play the tire inflation pressure
after the power switch is turned to
ON.
It may also take a few minutes to
display the tire in flation pressure
after inflation pressure has been
adjusted.
●Tire inflation pressure changes
with temperature. The displayed
values may also be different from
the values measured using a tire
pressure gauge.
■Situations in which the tire
pressure warning system may
not operate properly
●In the following cases, the tire pressure warning system may not
operate properly.
• If non-genuine Toyota wheels are
used.
• A tire has been replaced with a tire that is not an OE (Original
Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• If a window tint that 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 than the speci-
fied level.
• If wheel 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 display, airport or other facil-
ity that generates strong radio
waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or
other wireless communication
device
If tire position in formation is not cor-
rectly displayed due to the radio
wave conditions, the display may be
corrected by changing the location
of the vehicle as the radio wave
conditions may change.
●When the vehicle is parked, the
time 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.

5197-3. Do-it-yourself maintenance
7
Maintenance and care
position registration is per-
formed by driving forward with
moderate left and right turns.
However, depending on the
driving conditions and driving
environment, registration may
take some time to complete.
1Park the vehicle in a safe
place, turn the power switch
off and wait 15 minutes or
more.
2 Start the hybrid system.
The wheel position registration pro-
cedure cannot be performed while
the vehicle is moving.
3Use the meter control
switches ( P.162) to select
. (  P.166)
4 Use the meter control
switches to select , then
press and hold .
5 Use the meter control
switches to select “TPWS
setting”, then press .
6 Use the meter control
switches to select “Tire Rota-
tion”, then press .
7 Use the meter control
switches to select “Yes”, then
press .
A message indicating that wheel
position registration is being per-
formed will be displayed on the
multi-information di splay. “---” will
be displayed for the tire inflation
pressure of each tire and wheel
position registration will begin.
8 Drive straight (with occa-
sional left and right turns) at
approximately 25 mph (40
km/h) or more for approxi-
mately 10 to 30 minutes.
When wheel position registration is
complete, a message indicating
that registration has been com-
pleted and the inflation pressure of
each tire will be displayed on the
multi-informat ion display.
Even if it is not possible to drive
continuously at approximately 25
mph (40 km/h) or more, registration
can be completed by driving for a
long time. However, if registration
does not complete after driving for
1 hour or more, park the vehicle in
a safe place and leave it with the
power switch in ON for approxi-
mately 15 minutes or more, and
then perform the driving procedure
again.
■When performing wheel posi-
tion registration
●Normally, wheel position registra-
tion can be completed within
approximately 30 minutes.
●Wheel position registration is per-
formed while driving at a vehicle
speed of approximately 25 mph
(40 km/h) or more.
■Wheel position registration pro-
cedure
●If the power switch is turned off
while registering the wheel posi-
tion, the next time the power
switch is turned to ON, the wheel
position registration will resume
and it will not be necessary to
restart the procedure.
●While the position of each wheel is
being determined and the inflation
pressures are not being dis-
played, if the inflation pressure of
a tire drops, the tire pressure
warning light will come on.

5227-3. Do-it-yourself maintenance
■Warning performance of the tire
pressure warning system
●When performing the tire pressure
setting using the current tire infla-
tion pressure, the warning timing
of the tire pressure warning sys-
tem will vary according to the con-
ditions under which tire pressure
setting was performed. Therefore,
a warning may be output even if
the tire inflation pressure drops
slightly or if the tire inflation pres-
sure increases above that when
the tire inflation pressure was set.
●Make sure to perform the tire
pressure setting procedure after
adjusting the tire inflation pres-
sure. Also, make su re the tires are
cold before performing the tire
pressure setting procedure or
adjusting the tire inflation pres-
sure.
■Tire inflation pressure setting
procedure
●If the power switch is turned off
while setting the tire inflation pres-
sure, the next time the power
switch is turned to ON, the setting
procedure will resume and it will
not be necessary to restart the
procedure.
●If the tire inflation pressure setting
procedure is started unnecessar-
ily, adjust the tire inflation pres-
sure to the specified level with the
tires cold and then perform setting
by selecting a specified tire infla-
tion pressure, or perform the tire
inflation pressure setting proce-
dure with the current tire inflation
pressure.
■If the tire inflation pressure can-
not be set easily
●Normally, the tire inflation pres-
sure setting procedure can be
completed in 2 or 3 minutes.
●If the tire pressure warning light
does not blink 3 times when start-
ing the tire inflation pressure set-
ting procedure, the procedure may not have started.
Perform the procedure again from
the beginning.
●If tire inflation
pressure setting
procedure cannot be completed
after performing the above proce-
dure, contact your Toyota dealer.
The tire pressure warning valve
and transmitter is equipped with
a unique ID code. When new
tire pressure warning valves and
transmitters are installed, new
ID codes must be registered in
the tire pressure warning com-
puter.
• ID codes can be registered by
yourself, but depending on
the driving conditions and
driving environment, registra-
tion may take some time to
complete.
• When using a wheel set which all of the ID codes have
already been registered, the
wheel set can be changed in
a short amount of time.
Before performing ID code reg-
istration, make sure that no
wheels with tire pressure warn-
ing valve and transmitters
installed are near the vehicle.
1 Park the vehicle in a safe
place, turn the power switch
off and wait 15 minutes or
more.
2 Start the hybrid system.
The ID code registration procedure
cannot be performed while the
Registering ID codes

5267-3. Do-it-yourself maintenance
Stop the vehicle in a safe
place on a hard, flat surface.
 Set the parking brake.
 Shift the shift position to P.
 Stop the hybrid system.
 Turn on the emergency flash-
ers. ( P.546)
 For vehicles with power back
door: Turn off the power back
door system. ( P.202)
■Tools
As your vehicle is equipped with an
emergency tire puncture repair kit,
the following tools for replacing a
tire are not included with your vehi-
cle. They can be purchased at your
Toyota dealer.
●Wheel nut wrench
●Jack
●Jack handle
Replacing the tire
When replacing the tires
yourself, prepare the neces-
sary tools and a jack.
If necessary tire replace-
ment seems difficult to per-
form, contact your Toyota
dealer.
Before jacking up the
vehicle

5307-3. Do-it-yourself maintenance
1Remove any dirt or foreign
matter from the wheel con-
tact surface.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while th e vehicle is in
motion, causing the tire to come off.
2 Install the tire and loosely
tighten each wheel nut by
hand by approximately the
same amount.
Turn the wheel nuts until the wash-
ers ( ) come into contact with the
disc wheel ( ).
WARNING
●Failure to follow these precau-
tions could cause the wheel
nuts to loosen and the tire to fall
off, resulting in death or serious
injury.
• Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the
wheel nuts to be excessively
tightened, leading to bolt or disc
wheel damage. Remove any oil
or grease that has adhered
when installing the wheel nuts.
• Have the wheel nuts tightened with a torque wrench to 76 ft•lbf
(103 N•m, 10.5 kgf•m) as soon
as possible after changing
wheels.
• After replacing a tire, check the tightening torque as soon as
possible. If you cannot confirm
the tightening torque yourself,
have the vehicle inspected at
your Toyota dealer.
• When installing a tire, only use wheel nuts that have been spe-
cifically designed for that wheel.
• If there are any cracks or defor- mations in the bolt screws, nut
threads or bolt holes of the
wheel, have the vehicle
inspected by your Toyota
dealer.
• Do not attach a heavily dam- aged wheel ornament, as it may
fly off the wheel while the vehi-
cle is moving.
■Replacing a flat tire for vehi-
cles with power back door
In cases such as when replacing
tires, make sure to cancel the
power back door system
(  P.202). Failure to do so may
cause the back door to operate
unintentionally if the power back
door switch is accidentally
touched, resulting in hands and
fingers being caught and injured.
NOTICE
■Repairing or replacing tires,
wheels, tire pressure warn-
ing valves, transmitters and
tire valve caps
 P.518
Installing the tire
A
B

5357-3. Do-it-yourself maintenance
7
Maintenance and care
Use only Toyota wheel nuts
and wrenches designed for
use with your aluminum
wheels.
 When rotating, repairing or
changing your tires, check
that the wheel nuts are still
tight after driving 1000 miles
(1600 km).
 Be careful not to damage the
aluminum wheels when using
tire chains.
 Use only Toyota genuine bal-
ance weights or equivalent
and a plastic or rubber ham-
mer when balancing your
wheels. 1
Turn the power switch off.
Confirm that the charging connec-
tor is not connected.
2Open the glove box and slide
off the damper.
3 Push in each side of the
glove box to disconnect the
claws, and then slowly and
NOTICE
■Replacing tire pressure warn-
ing valves and transmitters
●Because tire repair or replace-
ment may affect the tire pres-
sure warning valves and
transmitters, make sure to have
tires serviced by your Toyota
dealer or other qualified service
shop. In addition, make sure to
purchase your tire pressure
warning valves and transmit-
ters at your Toyota dealer.
●Ensure that only genuine
Toyota wheels are used on your
vehicle.
Tire pressure warning valves
and transmitters may not work
properly with non-genuine
wheels.
Aluminum wheel precau-
tions
Air conditioning filter
The air conditioning filter
must be changed regularly
to maintain air conditioning
efficiency.
Removal method

5407-3. Do-it-yourself maintenance
1Turn the power switch off.
Confirm that the charging connec-
tor is not connected.
2Open the fuse box cover.
Engine compartment:
Push claw and to com-
pletely release the lock, and then lift
up the cover.
Left side instrument panel
Remove the lid.
Right side luggage compart-
ment
Open the deck board. ( P.454)
Hold the handle and pull it toward
you, and then the 3 clips will be dis-
engaged
3 Remove the fuse.
Only type A fuse can be removed
Checking and replac-
ing fuses
If any of the electrical com-
ponents do not operate, a
fuse may have blown. If this
happens, check and replace
the fuses as necessary.
Checking and replacing
fuses
AB