fuel type TOYOTA PRIUS PRIME 2021 Owners Manual (in English)

17Pictorial index
PRIUS PRIME_OM_OM47D71U_(U)Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 371
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 371
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 732
Charging port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 110
Charging method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 134
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 614
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 629
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 737
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 507
Checking/rotation/tire pressure warning system . . . . . . . . .P. 614
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 692
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 597
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 597
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 721
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 353
Parking lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 353
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 363
LED accent lights
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 353
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 351
Daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 353
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 353
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 353
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 353
Back-up lights
Shifting the shift position to R . . . . . . . . . . . . . . . . . . . . . . . . . P. 345
5
6
7
8
Light bulbs of the exterior lights for driving
(Replacing method: P. 655, Watts: P. 738)
*: If equipped
9
10
11
12
13
14
15
16
17
18

441-1. For safe use
PRIUS PRIME_OM_OM47D71U_(U)
■If the SRS airbags deploy (inflate)
●Slight abrasions, burns, bruising etc., may be sustained from SRS airbags,
due to the extremely high speed deployment (inflation) by hot gases.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the front seats, parts of the front and rear pillars, and roof side rails,
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. 99)
●The emergency flashers will turn on automatically. (P. 664)
●For Safety Connect subscribers, if any of the following situations occur, the
system is designed to send an emergency call to the response center, noti-
fying them of the vehicle’s location (without needing to push the “SOS” but-
ton) and an agent will attempt to speak with the occupants to ascertain the
level of emergency and assistance required. If the occupants are unable to
communicate, the agent automatically treats the call as an emergency and
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110003000b[P. 76)
• An SRS airbag is deployed.
• A seat belt pretensioner is activated.
• The vehicle is involved in a severe rear-end collision.
■SRS airbag deployment conditions (SRS front airbags)
●The SRS front airbags will deploy in the event of an impact that exceeds the
set threshold level (the 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).
However, this threshold velocity will be considerably higher in the following
situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole,
which can move or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in
which the front of the vehicle “underrides”, or goes under, the bed of a
truck
●Depending on the type of collision, it is possible that only the seat belt pre-
tensioners and seat cushion airbag will activate.
●The SRS front airbags for the front passenger will not activate if there is no
passenger sitting in the front passenger seat. However, the SRS front air-
bags for the front passenger may deploy if luggage is put in the seat, even if
the seat is unoccupied.
●The SRS seat cushion airbag on the front passenger seat will not operate if
the occupant is not wearing a seat belt.

PRIUS PRIME_OM_OM47D71U_(U)
2333. Instrument cluster
3
Instrument cluster
◆“Fuel Consumption Record”
When the unit is set to “MPH”
The transitions of the average fuel consumption after the hybrid
system starts can be checked in units of 1 mile (1.6 km) or 5 miles
(8 km) of driving.
When the unit is set to “km/h”
The transitions of the average fuel consumption after the hybrid
system starts can be checked in units of 1 km (0.6 mile) or 5 km
(3.1 miles) of driving.
■How to read the screen
The “ 1 miles” display is shown as an example. However, the
basic method for how to read the screen is the same for each fuel
consumption history screen.
Current average electricity
and fuel consumption record
(yellow display)
When the unit is set to “MPH”:
When the recorded unit is
exceeded (every 1 mile [1.6 km]
or 5 miles [8 km] the currently
displayed history moves
towards the left side and the old-
est record is deleted.
When the unit is set to “km/h”:
When the recorded unit is exceeded (every 1 km [0.6 mile] or 5 km [3.1
miles]) the currently displayed history moves towards the left side and
the oldest record is deleted.
Past average electricity and fuel consumption record (green dis-
play)
Tab display
Displays types of “Fuel Consumption Record”.
1
2
3

234
PRIUS PRIME_OM_OM47D71U_(U)
3. Instrument cluster
■Types of “Fuel Consumption Record”
When the unit is set to “MPH”
*: This record is reset each time the hybrid system stops.
When the unit is set to “km/h”
*: This record is reset each time the hybrid system stops.
Tab displayRecorded contentsRecorded range
“ 1 miles”
Average electricity con-
sumption of every 1 mile
(1.6 km) driven
*
The last 15 miles (24.1 km)
driven
“ 5 miles”
Average electricity con-
sumption of every 5 miles (8
km) driven
*
The last 30 miles (48.3 km)
driven
“ 1 miles”
Average fuel consumption
of every 1 mile (1.6 km)
driven
*
The last 15 miles (24.1 km)
driven
“ 5 miles”
Average fuel consumption
of every 5 miles (8 km)
driven
*
The last 30 miles (48.3 km)
driven
Tab displayRecorded contentsRecorded range
“ 1 km”
Average electricity con-
sumption of every 1 km
(0.6 mile) driven
*
The last 15 km (9.3 miles)
driven
“ 5 km”
Average electricity con-
sumption of every 5 km
(3.1 miles) driven
*
The last 30 km (18.6 miles)
driven
“ 1 km”
Average fuel consumption
of every 1 km (0.6mile)
driven
*
The last 15 km (9.3 miles)
driven
“ 5 km”
Average fuel consumption
of every 5 km (3.1 miles)
driven
*
The last 30 km (18.6 miles)
driven

371
PRIUS PRIME_OM_OM47D71U_(U)
5-4. Refueling
5
Driving
Opening the fuel tank cap
●Turn the power switch off and ensure that all the doors and win-
dows are closed.
●Confirm the type of fuel.
■Fuel types
P. 739
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that
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580048004f0003005300580050005300560011[
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 vehicle

PRIUS PRIME_OM_OM47D71U_(U)
5095-6. Driving tips
5
Driving
■Tire chain installation
Observe the following precautions when installing and removing chains:
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03[
●Install tire chains on the front tires only. Do not install tire chains on the rear
tires.
●Install tire chains on front tires as tightly as possible. Retighten chains after
driving 1/4 - 1/2 mile (0.5 - 1.0 km).
●<002c0051005600570044004f004f00030057004c0055004800030046004b0044004c00510056000300490052004f004f0052005a004c0051004a00030057004b00480003004c0051005600570055005800460057004c005200510056000300530055005200
59004c0047004800470003005a004c0057004b00030057004b[e tire chains.
■Consumption of fuel and electricity
In cold temperatures, resistance of the parts of a vehicle (transmission, tires,
etc.) generally increases, resulting in increase of energy consumption. As a
result, fuel economy is likely to decrease.
Consumption of fuel and electricity of this vehicle is also likely to become
worse in cold temperatures.
WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or
serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h), regardless of the type of
snow tires being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely,
and may cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being
used, or 30 mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
●Slow down sufficiently before entering a curve to ensure that vehicle con-
trol is maintained.
●Do not use LTA (Lane Tracing Assist).
■When parking the vehicle
When parking the vehicle without applying the parking brake, make sure to
chock the wheels. If you do not chock the wheels, the vehicle may move
unexpectedly, possibly resulting in an accident.

PRIUS PRIME_OM_OM47D71U_(U)
5216-1. Using the air conditioning system and defogger
6
Interior features
■When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on
●In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically. This may also
reduce fuel consumption.
●Recirculated air mode is selected as a default mode when the power switch
is turned to ON mode.
●It is possible to switch to outside air mode at any time by pressing
.
■Ventilation and air conditioning odors
●To let the fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.
●In order to suppress odors that occur when the air conditioning system
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440055004e004800470011[
●To reduce potential odors from occurring, the start timing of the blower may
be delayed for a short period of time immediately after the air conditioning
system is started in automatic mode.
■Air conditioning filter
P. 640
■Air conditioning system refrigerant
●The meaning of each symbol on the label are as follows: ●A label regarding the refrigerant of the
air conditioning system is attached to the
hood at the location shown in the follow-
ing illustration.
Caution
Air conditioning system
Air conditioning system lubricant type
Requires registered technician to service air conditioning
system
Flammable refrigerant

584
PRIUS PRIME_OM_OM47D71U_(U)
7-1. Maintenance and care
■Caring for leather areas
Toyota recommends cleaning the interior of the vehicle at least twice a year to
maintain the quality of the vehicle’s interior.
■Shampooing the carpets
There are several commercial foaming-type cleaners available. Use a sponge
or brush to apply the foam. Rub in overlapping circles. Do not use water.
Wipe dirty surfaces and let them dry. Excellent results are obtained by keep-
ing the carpet as dry as possible.
■Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge. Also
check the belts periodically for excessive wear, fraying or cuts.
■Cleaning the air intake vents and filters
●Dust on the air intake vents or filters may interferes cooling of the hybrid bat-
tery (traction battery) and results in poor electricity and fuel consumption.
Clean the air intake vents and filters periodically.
●If continuing to drive the vehicle with “Maintenance required for Traction bat-
tery cooling parts See owner’s manual” shown on the multi-information dis-
play, the hybrid battery (traction battery) may overheat, leading to
decreasing in distance that can be driven using the electric motor. It may
cause poor electricity and fuel consumption or a malfunction. If the warning
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4c004f00570048005500560003004c0050005000480047004c[ately.
●Improper handling may result in damage to the grille or filters. If you have
any concerns about cleaning the filters, contact your Toyota dealer.
●If the warning message on the multi-information display does not disappear
after cleaning the filters, have the vehicle inspected by your Toyota dealer.
●Timing of cleaning filters differs depending on the use environment of the
vehicle.

709
PRIUS PRIME_OM_OM47D71U_(U)
8
When trouble arises
8-2. Steps to take in an emergency
If the hybrid system will not start
One of the following may be the cause of the problem:
●The charging cable may be attached to the vehicle. (P. 146)
●The electronic key may not be functioning properly.
* (P. 711)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. (P. 100)
●There may be a malfunction in the immobilizer system.
* (P. 8 3 )
●There may be a malfunction in the shift control system.
*
(P. 342, 691)
●The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. (P. 710)
●There is a possibility that the temperature of the hybrid battery
(traction battery) is extremely low (approximately below -22°F
[-30°C]). (P. 100, 340)
*: It may not be possible to shift the shift position other than P.
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 715)
●The 12-volt battery terminal connections may be loose or corroded.
(P. 607)
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. (P. 338)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.

732
PRIUS PRIME_OM_OM47D71U_(U)
9-1. Specifications
■Engine number
The engine number is stamped
on the engine block as shown.
Engine
Model1.8 L 4-cylinder (2ZR-FXE)
Ty p e4-cylinder in line, 4-cycle, gasoline
Bore and stroke3.17  3.48 in. (80.5  88.3 mm)
Displacement109.7 cu.in. (1798 cm3)
Valve clearanceAutomatic adjustment
Fuel
Fuel typeUnleaded gasoline only
Octane Rating87 (Research Octane Number 91) or higher
Fuel tank capacity
(Reference)11.4 gal. (43 L, 9.5 Imp.gal.)