gas type TOYOTA PRIUS PRIME 2023 Owners Manual

371-1. For safe use
1
For safety and security
bag sensor assembly (ECU) controls airbag deployment based on
information obtained from the sensors, etc., shown in the system
components diagram above. This information includes crash sever-
ity and occupant information. As the airbags deploy, a chemical
reaction in the inflators quickly fills the airbags with non-toxic gas to
help restrain the motion of the occupants.
■If the SRS airbags deploy
(inflate)
●Slight abrasions, burns, bruising,
etc., may be sustained from SRS
airbags, due to the extremely high
speed of deployment (inflation) by
hot gases.
●A loud noise and white powder will
be emitted.
●Parts of the airbag module (steer-
ing wheel hub, airbag cover and
inflator) as well as the parts
around the airbags may be hot for
several minutes. The airbag itself
may also be hot.
●The windshield may crack.
●The hybrid system will be stopped
and fuel supply to the engine will
be stopped. (P.87)
●The brakes and st op lights will be
controlled automatically.
(  P.425)
●The interior lights will turn on auto-
matically. ( P.446)
●The emergency flashers will turn
on automatically. ( P.546)
●For Safety Connect subscribers, if
any of the following situations
occur, the system is designed to
send an emergency call to the
response center, notifying them of
the vehicle’s location (without
needing to push the “SOS” button)
and an agent will a ttempt to speak
with the occupants to ascertain
the level of emergency and assis-
tance required. If the occupants
are unable to communicate, the
agent automatically treats the call
as an emergency and helps to dis-
patch the necessary emergency services. (
P.65)
• When an SRS airbag has been deployed
• When a seat belt pretensioner has
operated
• When the vehicle has been involved in a severe rear-end colli-
sion
■The SRS airbags deploy in a
frontal impact when
●The following SRS airbags will
deploy in the event of an impact
that exceeds a threshold level
(level of force corresponding to an
approximately 12 - 18 mph [20 -
30 km/h] frontal collision with a
fixed wall that does not move or
deform):
• SRS front airbags
●The threshold level at which the
SRS airbags will deploy will be
higher than normal in the in the
following situations:
• When the vehicle collides with an
object, such as a parked vehicle
or sign pole, which moves or
deforms on impact
• If the vehicle is involved in an underride collision, such as a colli-
sion in which the front of the vehi-
cle underrides, or goes under, the
bed of a truck
●Depending on the type of collision,
only the following may deploy:
• Seat belt pretensioners
●The SRS airbags for the front pas-
senger’s seat will not deploy if
there is no passenger in the front
passenger seat. However, the
SRS airbags for the front passen-
ger’s seat may deploy, even if the
seat is unoccupied, if luggage is
put on the seat.

1082-2. Charging
■AC charging (P.116)
This is a charging method used
when charging from an AC out-
let with the AC charging cable or
charging that use an AC char-
ger.
By setting charging schedule, it is
also possible to charge at the
desired date and time. ( P.123)
■Using the hybrid battery
(traction battery) charge
mode ( P.75)
The plug-in hybrid system can
be switched to hybrid battery
(traction battery) charge mode
to charge the hybrid battery
(traction battery) using electricity
generated by gasoline engine
operation.
The maximum charge amount in
the hybrid battery (traction battery)
charge mode is approximately 80%
of the fully charged capacity for the
charging from an external power
source.
■Solar charging system (if
equipped) ( P.136)
In certain conditions, when the vehicle is parked, the hybrid bat-
tery (traction battery) can be
charged by using electricity gen-
erated by the solar panel
equipped to the roof of the vehi-
cle.
This vehicle is equipped with
several functions that are linked
with charging.
■“My Room Mode” (
P.134)
When the AC charging cable is
connected to the vehicle, electri-
cal components such as the air
conditioning system or audio
system can be used using the
external power source
*.
*: The power of the hybrid battery (traction battery) may be used
depending on the situation.
■“Battery Heater”
When the outside temperature
is low and the AC charging
cable is connected to the vehi-
cle, this function automatically
warms the hybrid battery (trac-
tion battery) until it reaches or
exceeds a certain temperature.
“Battery Heater” will operate
when the “Battery Heater” of the
“Charging Settings” on the multi-
information display is on.
( P.169)
 By setting charging schedule,
“Battery Heater” operates
according to the charging
Charging methods
The following methods can
be used to charge the
hybrid battery (traction bat-
tery).
Types of charging meth-
odsCharging-linked functions

2795-4. Refueling
5
Driving
5-4.Refueling
Close all the doors and win-
dows, and turn the power
switch to OFF.
 Confirm the type of fuel.
■Fuel types
 P.607
■Fuel tank opening for unleaded
gasoline
To help prevent incorrect fueling,
your vehicle has a fuel tank opening
that only accommodates the spe-
cial nozzle on unleaded fuel pumps.
Opening the fuel tank
cap
The fuel tank of your vehicle
has a special structure,
which requires a reduction
in fuel tank pressure before
refueling. After the opener
switch has been pressed, it
will take several seconds
until the vehicle is ready for
refueling.
Before refueling the vehi-
cle
WARNING
■When refueling the vehicle
Observe the following precautions
while refueling the vehicle. Failure
to do so may result in death or
serious injury.
●After exiting the vehicle and
before opening the fuel door,
touch an unpainted metal sur-
face to discharge any static
electricity. It is important to dis-
charge static electricity before
refueling because sparks result-
ing from static electricity can
cause fuel vapors to ignite while
refueling.
●Always hold the grips on the
fuel tank cap and turn it slowly
to remove it.
A whooshing sound may be
heard when the fuel tank cap is
loosened. Wait until the sound
cannot be heard before fully
removing the cap. In hot
weather, pressurized fuel may
spray out of the filler neck and
cause injury.
●Do not allow anyone that has
not discharged static electricity
from their body to come close to
an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances that
are harmful if inhaled.
●Do not smoke while refueling
the vehicle.
Doing so may cause the fuel to
ignite and cause a fire.
●Do not return to the vehicle or
touch any person or object that
is statically charged. This may
cause static electricity to build
up, resulting in a possible igni-
tion hazard.
■When refueling
Observe the following precautions
to prevent fuel overflowing from
the fuel tank:
●Securely insert the fuel nozzle
into the fuel filler neck.
●Stop filling the tank after the fuel
nozzle automatically clicks off.

4646-4. Using the other interior features
placed outside the charge area
●The vehicle is in an area where
strong electrical waves or noise
are emitted, such as near a televi-
sion tower, power plant, gasoline
station, broadcasting station, large
display, airport, etc.
●The electronic key is not inside the
vehicle
●Any of the following objects that is
0.08 in. (2 mm) or thicker is stuck
or installed between the charging
side of the smartphone and the
charge area.
• Thick cases or covers
• A case or cover attached with an
uneven or tilted surface, so that
the charging side is not flat
• Thick decorations
• Accessories, such as finger rings, straps, etc.
●When there is a gap between the
charging side of the smartphone
and the charge area due to a pro-
trusion such as a camera on the
charging side of the smartphone.
●When the smartphone is in con-
tact with, or is covered by any of
the following metallic objects:
• A card that has metal on it, such as aluminum foil, etc.
• A pack of cigarettes that includes aluminum foil
• A wallet or bag that is made of
metal
• Coins
• A heating pad
• CDs, DVDs or other media
• A metal accessory
• A case or cover made of metal
• A flip type case with a magnet on the charging side of the smart-
phone
●Electric wave type wireless
remote controls are being used
nearby
●2 or more smartphones are placed
on the wireless charger at the
same time
●When using a smartphone model
with an internal charging coil that is not located near the center of
the smartphone
If charging is abnormal or the opera-
tion indicator light continues to flash
for any other reason, the wireless
charger may be malfunctioning.
Contact your Toyota dealer.
■If the smartphone OS has been
updated
If the smartphone OS has been
updated to a newer version, its
charging specifications may have
changed significantly. For details,
check the information on the manu-
facturer’s website.
■Trademark information
iPhone is a trademark of Apple Inc.,
registered in the U.S. and other
countries.
WARNING
■Caution while driving
When charging a smartphone, for
safety reasons, the driver should
not operate the main part of the
smartphone while driving.
■Caution regarding interfer-
ence with electronic devices
People with implantable cardiac
pacemakers, cardiac resynchroni-
zation therapy-pacemakers or
implantable cardio verters, as well
as any other electrical medical
device, should consult their physi-
cian about the usage of the wire-
less charger.
■To prevent malfunctions or
burns
Observe the following precau-
tions. Failure to do so may result
in a equipment failure and dam-
age, catch fire, burns due to over-
heat or electric shock.
●This product is specialized for
use with smartphones and can-
not charge other devices.

4917-1. Maintenance and care
7
Maintenance and care
damage to the UV protective coat-
ing, observe the following:
●If the windows are dirty, gently
wipe them with a cloth soaked in
water or lukewarm water as soon
as possible.
●If the windows are very dirty, do
not open and close them repeat-
edly.
WARNING
■Water in the vehicle
●Do not splash or spill liquid in
the vehicle, such as on the floor,
on the rear seats or in the lug-
gage compartment.
Doing so may cause the hybrid
battery, electrical components,
etc. to malfunction or catch fire.
●Do not get any of the SRS com-
ponents or wiring in the vehicle
interior wet.
(  P.36)
An electrical malfunction may
cause the airbags to deploy or
not function properly, resulting
in death or serious injury.
●Do not let the wireless charger
(  P.458) get wet. Failure to do
so may cause the charger to
become hot and cause burns or
could cause electric shock
resulting in death or serious
injury.
■Cleaning the interior (espe-
cially instrument panel)
Do not use polish wax or polish
cleaner. The instrument panel
may reflect off the windshield,
obstructing the driver’s view and
leading to an accident, resulting in
death or serious injury.
NOTICE
■Cleaning detergents
●Do not use the following types
of detergent, as they may dis-
color the vehicle interior or
cause streaks or damage to
painted surfaces:
• Non-seat portions: Organic sub- stances such as benzene or
gasoline, alkaline or acidic solu-
tions, dye, and bleach
• Seats: Alkaline or acidic solu- tions, such as thinner, benzene,
and alcohol
●Do not use polish wax or polish
cleaner. The instrument panel’s
or other interior part’s painted
surface may be damaged.
■Preventing damage to leather
surfaces
Observe the following precautions
to avoid damage to and deteriora-
tion of leather surfaces:
●Remove any dust or dirt from
leather surfaces immediately.
●Do not expose the vehicle to
direct sunlight for extended peri-
ods of time. Park the vehicle in
the shade, especially during
summer.
●Do not place items made of
vinyl, plastic, or containing wax
on the upholstery, as they may
stick to the leather surface if the
vehicle interior heats up signifi-
cantly.
■Water on the floor
Do not wash the vehicle floor with
water.
Vehicle systems such as the
audio system may be damaged if
water comes into contact with
electrical components such as the
audio system above or under the
floor of the vehicle. Water may
also cause the body to rust.

5397-3. Do-it-yourself maintenance
7
Maintenance and care
minal facing up.
4When installing, reverse the
steps listed.
WARNING
■Battery precautions
Observe the following precau-
tions.
Failure to do so may result in
death or serious injury.
●Do not swallow the battery.
Doing so may cause chemical
burns.
●A coin battery or button battery
is used in the electronic key. If a
battery is swallowed, it may
cause severe chemical burns in
as little as 2 hours and may
result in death or serious injury.
●Keep away new and removed
batteries from children.
●If the cover cannot be firmly
closed, stop using the electronic
key and stow the key in the
place where children cannot
reach, and then contact your
Toyota dealer.
●If you accidentally swallow a
battery or put a battery into a
part of your body, get emer-
gency medical attention imme-
diately.
■To prevent battery explosion
or leakage of flammable liq-
uid or gas
●Replace the battery with a new
battery of the same type. If a
wrong type of battery is used, it
may explode.
●Do not expose batteries to
extremely low pressure due to
high altitude or extremely high
temperatures.
●Do not burn, break or cut a bat-
tery.
NOTICE
■When replacing the battery
Use a flathead screwdriver of
appropriate size. Applying exces-
sive force may deform or damage
the cover.
■For normal operation after
replacing the battery
Observe the following precautions
to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery
to rust.
●Do not touch or move any other
component inside the remote
control.
●Do not bend either of the battery
terminals.

6019-1. Specifications
9
Vehicle specifications
under the right-hand front seat.
This number is also on the Certi-
fication Regulation Label.■Engine number
The engine number is stamped
on the engine block as shown.
Engine
Model2.0 L 4-cylinder (M20A-FXS)
Type4-cylinder in line, 4-cycle, gasoline
Bore and stroke3.17  3.84 in. (80.5  97.6 mm)
Displacement121.3 cu.in. (1987 cm3)
Valve clearanceAutomatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane Rating87 (Research Octane Number 91) or
higher
Fuel tank capacity (Reference)10.6 gal. (40 L, 8.8 Imp.gal.)

6039-1. Specifications
9
Vehicle specifications
Outside temperature
Oil viscosity (0W-16 is explained
here as an example):
• The 0W in 0W-16 indicates the characteristic of the oil
which allows cold startability.
Oils with a lower value before
the W allow for easier starting
of the engine in cold weather.
• The 16 in 0W-16 indicates the viscosity characteristic of the oil when the oil is at high tem-
perature. An oil with a higher
viscosity (one with a higher
value) may be better suited if
the vehicle is operated at high
speeds, or under extreme
load conditions.
How to read oil container label:
API registered mark is added to
some oil containers to help you
select the oil you should use.
*: The coolant capacity is the quantity of reference.
If replacement is necessary, contact your Toyota dealer.
A
Cooling system
Capacity*Gasoline engine6.4 qt. (6.1 L, 5.4 Imp. qt.)
Power control unit1.7 qt. (1.6 L, 1.4 Imp. qt.)
Coolant type
Use either of the following:
 “Toyota Super Long Life Coolant”
 Similar high-quality ethylene gly-
col-based non-silic ate, non-amine,
non-nitrite, and non-borate cool-
ant with long-life hybrid organic
acid technology
Do not use plain water alone.

6089-1. Specifications
If fuel containing MMT is used, your
emission control system may be
adversely affected.
The malfunction indicator lamp on
the instrument cluster may come on.
If this happens, contact your Toyota
dealer for service.
■If your engine knocks
●Consult your Toyota dealer.
●You may occasionally notice light
knocking for a short time while
accelerating or driving uphill. This
is normal and there is no need for
concern.
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If
improper fuels are used, the
engine will be damaged.
●Do not use leaded gasoline.
Leaded gasoline can cause
damage to your vehicle’s three-
way catalytic converters caus-
ing the emission control system
to malfunction.
●Do not use gasohol other than
the type previously stated.
Other gasohol may cause fuel
system damage or vehicle per-
formance problems.
●Using unleaded gasoline with
an octane number or rating
lower than the level previously
stated will cause persistent
heavy knocking.
At worst, this will lead to engine
damage.
■Fuel-related poor driveability
If poor driveability (poor hot start-
ing, vaporization, engine knock-
ing, etc.) is encountered after
using a different type of fuel, dis-
continue the use of that type of
fuel.
■When refueling with gasohol
Take care not to spill gasohol. It
can damage your vehicle’s paint.
■Notice about fuel
 P.86

680
GAS STATION INFORMATION
Auxiliary catch lever (P.501)
Power back door switch ( P.194)
Fuel filler door ( P.280)
Fuel filler door opener switch ( P.280)
Hood lock release lever ( P.501)
Tire inflation pressure ( P.605)
Fuel tank capacity
(Reference)10.6 gal. (40 L, 8.8 Imp.gal.)
Fuel typeUnleaded gasoline onlyP.601
Cold tire inflation pressureP.605
Engine oil capacity
(Drain and refill  reference)P.602
Engine oil typeP.602
A
B
C
D
E
F