2023 TOYOTA PRIUS PRIME check engine

1733-1. Instrument cluster
3
Vehicle status information and indicators
Multi-information display
Multimedia Display
Meter control switches
The energy monitor can be used
to check the vehicle drive status,
hybrid system operation status
and energy regeneration status.
■Display procedure
Multi-information display
Use the meter control switches, display the energy monitor on
the multi-information display.
For detail regarding the multi-infor-
mation display, refer to P.161.
Multimedia Display
Touch on the main menu,
then touch “Energy flow” on the
sub menu.
For detail regardin g the Multimedia
Display, refer to “MULTIMEDIA
OWNER’S MANUAL”.
■Reading the display
The arrows will appear in accor-
dance with the energy flow.
When there is no energy flow,
arrows will not be displayed.
The color of the arrows will change
as follows
Blue: When the hybrid battery (trac-
tion battery) is regenerated or
charged.
Orange: When the hybrid battery
(traction battery) is in use.
Red: When the gasoline engine is
in use.
Multi-information display
The image shows all the arrows as
an example. The actual display will
vary depending on conditions.
Energy monitor/con-
sumption screen/solar
charging information
screen (if equipped)
You can view the status of
your hybrid system, fuel
consumption information
and information related to
the solar charging system
on the multi-information
display and Multimedia Dis-
play.
System components
Energy monitor
A
B
C

2415-1. Before driving
5
Driving
WARNING
■When driving the vehicle
●Do not drive if you are unfamil-
iar with the location of the brake
and accelerator pedals to avoid
depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the
brake pedal will result in sudden
acceleration that may lead to an
accident.
• When backing up, you may twist your body around, leading to a
difficulty in operating the pedals.
Make sure to operate the pedals
properly.
• Make sure to keep a correct driving posture even when mov-
ing the vehicle only slightly. This
allows you to depress the brake
and accelerator pedals properly.
• Depress the brake pedal using your right foot. Depressing the
brake pedal using your left foot
may delay response in an emer-
gency, resulting in an accident.
●The driver should pay extra
attention to pedestrians when
the vehicle is powered only by
the electric motor (traction
motor). As there is no engine
noise, the pedestrians may mis-
judge the vehicle’s movement.
Even if the Acoustic Vehicle
Alerting System is operating,
drive with care as pedestrians in
the vicinity may still not notice
the vehicle if the surrounding
area is noisy.
●Do not drive the vehicle over or
stop the vehicle near flammable
materials such as leaves, paper
or rags.
The exhaust system and
exhaust gases can be
extremely hot. These hot parts
may cause a fire if there is any
flammable material nearby.
●During normal driving, do not
turn off the hybrid system. Turn-
ing the hybrid s ystem off while
driving will not cause loss of
steering or braking control.
However, power assist for the
steering wheel may be lost mak-
ing it difficult to steer smoothly
before stopping the vehicle
depending on the remaining
charge in the 12-volt battery or
usage conditions. In this situa-
tion, you should pull over and
stop the vehicle as soon as it is
safe to do so.
In the event of an emergency,
such as if it be comes impossible
to stop the vehicle in the normal
way:  P.547
●Use engine braking (downshift)
to maintain a safe speed when
driving down a steep hill.
Using the brakes continuously
may cause the brakes to over-
heat and lose effectiveness.
( P.256)
●Do not adjust the position of the
steering wheel, the seat, inside
rear view mirror (if equipped),
Digital Rear-view Mirror (if
equipped) or outside rear view
mirrors while driving.
Doing so may resu lt in a loss of
vehicle control.
●Always check that all passen-
gers’ arms, head or other parts
of their body are not outside the
vehicle.

2435-1. Before driving
5
Driving
WARNING
■If you hear a squealing or
scraping noise (brake pad
wear limit indicators)
Have the brake pads checked and
replaced by your Toyota dealer as
soon as possible.
Rotor damage may result if the
pads are not replaced when
needed.
It is dangerous to drive the vehicle
when the wear limits of the brake
pads and/or those of the brake
discs are exceeded.
■When the vehicle is stopped
●Do not depress the accelerator
pedal unnecessarily.
If the shift position is in any
position other than P or N, the
vehicle may accelerate sud-
denly and unexpectedly, caus-
ing an accident.
●In order to prevent accidents
due to the vehicle rolling away,
always keep depressing the
brake pedal while stopped with
the “READY” indicator is illumi-
nated, and apply the parking
brake as necessary.
●If the vehicle is stopped on an
incline, in order to prevent acci-
dents caused by the vehicle roll-
ing forward or backward, always
depress the brake pedal and
securely apply the parking
brake as needed.
●Avoid revving or racing the
engine.
Running the engine at high
speed while the vehicle is
stopped may cause the exhaust
system to overheat, which could
result in a fire if combustible
material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette
lighters, spray cans, or soft
drink cans in the vehicle when it
is in the sun.
Doing so may result in the fol-
lowing:
• Gas may leak from a cigarette lighter or spray can, and may
lead to a fire.
• The temperature inside the vehicle may cause the plastic
lenses and plastic material of
glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray
over the interior of the vehicle,
and may also cause a short cir-
cuit in the vehicle’s electrical
components.
●Do not leave cigarette lighters in
the vehicle. If a cigarette lighter
is in a place such as the glove
box or on the floor, it may be lit
accidentally when luggage is
loaded or the seat is adjusted,
causing a fire.
●Do not attach adhesive discs to
the windshield or windows. Do
not place containers such as air
fresheners on the instrument
panel or dashboard. Adhesive
discs or containers may act as
lenses, causing a fire in the
vehicle.
●Do not leave a door or window
open if the curved glass is
coated with a metallized film
such as a silver-colored one.
Reflected sunlight may cause
the glass to act as a lens, caus-
ing a fire.

2455-1. Before driving
5
Driving
When the following unusual
operation is performed with the
accelerator pedal depressed,
the hybrid system output may be
restrained.
When the shift position is
shifted to R
*.
 When the shift position is
shifted from P or R to forward
drive shift position such as D
*.
When the system operates, a mes-
sage appears on the multi-informa-
tion display. Read the message
and follow the instruction.
*: Depending on the situation, the
shift position may not be
changed.
■Drive-Start Control (DSC)
●When the TRAC is turned off
( P.425), sudden start restraint
control also does not operate. If
your vehicle have trouble escap-
ing from the mud or fresh snow
NOTICE
■If you get a flat tire while driv-
ing
A flat or damaged tire may cause
the following situations. Hold the
steering wheel firmly and gradu-
ally depress the brake pedal to
slow down the vehicle.
●It may be difficult to control your
vehicle.
●The vehicle will make abnormal
sounds or vibrations.
●The vehicle will lean abnor-
mally.
Information on what to do in case
of a flat tire ( P.574)
■When encountering flooded
roads
Do not drive on a road that has
flooded after heavy rain, etc.
Doing so may cause the following
serious damage to the vehicle:
●Engine stalling
●Short in electrical components
●Engine damage caused by
water immersion
In the event that you drive on a
flooded road and the vehicle is
flooded, be sure to have your
Toyota dealer check the following:
●Brake function
●Changes in quantity and quality
of oil and fluid used for the
engine, transmission, tran-
saxle, etc.
●Lubricant condition for the bear-
ings and suspension joints
(where possible), and the func-
tion of all joints, bearings, etc.
If the shift control system is dam-
aged by flooding, it may not be
possible to shift the shift position
to P, or from P to other positions.
In this case, contact your Toyota
dealer.
■When parking the vehicle
Always set the parking brake, and
shift the shift position to P. Failure
to do so may cause the vehicle to
move or the vehicle may acceler-
ate suddenly if the accelerator
pedal is accidentally depressed.
Sudden start restraint
control (Drive-Start Con-
trol [DSC])

4726-4. Using the other interior features
Observe the following precau-
tions before starting the power
supply:
Park the vehicle in a well-ven-
tilated area, avoiding loca-
tions with poor ventilation
such as garages, as the
engine may start while the
system is operating.
 Park the vehicle on a solid
and level place.
Block the wheels as needed.
Check that the hood is closed.
 Check that the parking brake
is engaged.
 Check that the shift position is
in P.
 Check that the power switch
is off.
 Note that the alarm system
WARNING
• When a device is likely to fall
under the pedals and prevent
the brake pedal from being
depressed, such as a hair dryer,
AC adapter, mouse, etc.
●Do not use devices which pro-
duce steam while the windows
are closed. Doing so may cause
the windows to fog up, reducing
visibility and making it difficult to
drive safely. Also, the steam
may damage or negatively
affect other devices. If the
device must be used, stop the
vehicle and open the windows
before use.
NOTICE
■To avoid short circuit or mal-
function
Observe the following precau-
tions. Failure to do so may lead to
the power outlets not operating
correctly or damage to the vehicle
or a connected device.
●Do not set a toaster or other
device which generates heat
near the interior components or
on a seat. Heat may cause
these parts to melt or burn.
●Do not use devices which are
sensitive to vibration or heat in
the vehicle. These devices may
malfunction due to vibration
while driving or heat while the
vehicle is parked in the sun.
●When not using a power outlet,
make sure to close the lid. If for-
eign matter or a liquid enters the
power outlet, it may cause a
malfunction or short circuit.
■Using the power outlet while
parked or stopped
●Water may leak from the
exhaust pipe while the engine
running if the power outlet is
used for a long time. However,
this is not a malfunction.
●At extremely low temperatures,
water may freeze in the exhaust
pipe and make it difficult to start
the engine, or an odor may
come from the exhaust pipe. In
this case, stop using the power
outlet, and then drive the vehi-
cle for 15 to 30 minutes.
Precautions for using the
power outlets while
parked

485
7
7
Maintenance and care
Maintenance and care
7-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 486
Cleaning and protecting the vehicle interior ........... 490
7-2. Maintenance Maintenance requirements.................................. 494
General maintenance.. 495
Emission inspection and maintenance (I/M) pro-
grams ........................ 498
7-3. Do-it-yourself mainte- nance
Do-it-yourself service pre- cautions ..................... 499
Hood ........................... 501
Positioning a floor jack 502
Engine compartment ... 504
12-volt battery ............. 511
Tires ............................ 513
Replacing the tire ........ 526
Tire inflation pressure . 532
Wheels ......... ...............534
Air conditioning filter .... 535
Electronic key battery.. 538
Checking and replacing fuses.......................... 540
Headlight aim .............. 542
Exterior lights .............. 543

4947-2. Maintenance
7-2.Maintenance
■Repair and replacement
It is recommended that genuine
Toyota parts be used for repairs to
ensure performance of each sys-
tem. If non-Toyota parts are used in
replacement or if a repair shop other
than a Toyota dealer performs
repairs, confirm the warranty cover-
age.
■Allow inspection and repairs to
be performed by a Toyota
dealer
●Toyota technicians are well-
trained specialists and are kept up
to date with the latest service
information. They are well
informed about the operations of
all systems on your vehicle.
●Keep a copy of the repair order. It
proves that the maintenance that
has been performed is under war-
ranty coverage. If any problem
should arise while your vehicle is
under warranty, your Toyota
dealer will promptly take care of it.
General maintenance should be
performed on a daily basis. This
can be done by yourself or by a
Toyota dealer.
Scheduled maintenance should
be performed at specified inter-
vals according to the mainte-
nance schedule.
For details about maintenance
items and schedules, refer to the
“Scheduled Maintenance Guide” or
“Owner’s Manual Supplement”.
Maintenance require-
ments
To ensure safe and econom-
ical driving, day-to-day care
and regular maintenance
are essential. It is the
owner’s responsibility to
perform regular checks.
Toyota recommends the fol-
lowing maintenance:
WARNING
■If your vehicle is not properly
maintained
Improper maintenance could
result in serious damage to the
vehicle and possible death or seri-
ous injury.
■Handling of the 12-volt bat-
tery
●Engine exhaust, some of its
constituents, and a wide variety
of automobile components con-
tain or emit chemicals known to
the State of California to cause
cancer and birth defects and
other reproductive harm. Work
in a well ventilated area.
●Oils, fuels and fluids contained
in vehicles as well as waste pro-
duced by component wear con-
tain or emit chemicals known to
the State of California to cause
cancer and birth defects or
other reproductive harm. Avoid
exposure and wash any
affected area immediately.
●12-volt battery posts, terminals
and related accessories con-
tain lead and lead compounds
which are known to cause brain
damage. Wash your hands after
handling. ( P.512)
General maintenance
Scheduled maintenance

4957-2. Maintenance
7
Maintenance and care
■Resetting the message indicat-
ing maintenance is required
After the required maintenance is
performed according to the mainte-
nance schedule, please reset the
reminder light or message.
To reset the reminder light or mes-
sage, follow the procedure
described below:
1 Press or of the meter
control switches on the steering
wheel and select .
2 Press or of the meter
control switches and select
“ Vehicle Settings”.
Then press and hold .
3 Press or of the meter
control switches and select
“Scheduled Maintenance”, and
then press .
4 Select “Yes” and press .
You can perform some mainte-
nance procedures by yourself.
Please be aware that do-it-your-
self maintenance may affect
warranty coverage.
The use of Toyota Repair Manuals
is recommended.
For details about warranty cover-
age, refer to the separate “Owner’s
Warranty Information Booklet” or
“Owner’s Manual Supplement”.
Do-it-yourself mainte-
nance
General maintenance
Listed below are the general
maintenance items that
should be performed at the
intervals specified in the
“Owner’s Warranty Informa-
tion Booklet” or “Owner’s
Manual Supplement/Sched-
uled Maintenance Guide”. It
is recommended that any
problem you notice should
be brought to the attention
of your Toyota dealer or
qualified service shop for
advice.
WARNING
■If the hybrid system is run-
ning
Turn the hybrid system off and
ensure that there is adequate
ventilation before performing
maintenance checks.
Engine compartment
ItemsCheck points
Brake fluid
Is the brake fluid at
the correct level?
(  P.509)
Engine/power
control unit
coolant
Is the
engine/power con-
trol unit coolant at
the correct level?
( P.507)
Engine oil
Is the engine oil at
the correct level?
( P.504)