TOYOTA PRIUS 2023 Owners Manual

6598-1. Specifications
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8
Vehicle specifications
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 temperature. 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 labels:
Either or both API registered marks are added to some oil contain-
ers to help you select the oil you should use.
API Service Symbol
Top portion: “API SERVICE SP”
means the oil quality designa-
tion by American Petroleum Ins-
titute (API).
Center portion: “SAE 0W-16”
means the SAE viscosity grade.
Lower portion: “Resource-
Conserving” means that the oil
has fuel-saving and environ-
mental protection capabilities.
ILSAC Certification Mark
The International Lubricant Specification Advisory Committee (ILSAC)
Certification Mark is displayed on the front of the container.
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6608-1. Specifications
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Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Park the vehicle on level ground. After warming up the
engine and turning off the hybrid system, wait more than 5 minutes, and
check the oil level on the dipstick.
■
Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy
the following grade and viscosity.
Oil grade:
0W-20, 5W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Conserving”, SN
“Resource-Conserving”, SN PLUS “Resource-Conserving” or SP
“Resource-Conserving”; or ILSAC GF-6A multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-20 is filled into your
Toyota vehicle at manufactur-
ing, and the best choice for
good fuel economy and good
starting in cold weather.
If you use SAE 10W-30 or a
higher viscosity engine oil in
extremely low temperatures,
the engine may become difficult
to start, so SAE 0W-20, 5W-20
or 5W-30 engine oil is recom-
mended.
Lubrication system (for Georgia, New Caledonia and Russia)
With filter4.2 L (4.4 qt., 3.7 Imp.qt.)
Without filter3.9 L (4.1 qt., 3.4 Imp.qt.)
Temperature range anticipated
before next oil change
Preferred

6618-1. Specifications
PRIUS_OM_OM47F32E_(EE)
8
Vehicle specifications
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 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 20 in 0W-20 indicates the viscosity characteristic of the oil
when the oil is at high temperature. 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 labels:
Either or both API registered marks are added to some oil contain-
ers to help you select the oil you should use.
API Service Symbol
Top portion: “API SERVICE SP”
means the oil quality designa-
tion by American Petroleum Ins-
titute (API).
Center portion: “SAE 0W-20”
means the SAE viscosity grade.
Lower portion: “Resource-Con-
serving” means that the oil has
fuel-saving and environmental
protection capabilities.
ILSAC Certification Mark
The International Lubricant Specification Advisory Committee (ILSAC)
Certification Mark is displayed on the front of the container.
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2

6628-1. Specifications
PRIUS_OM_OM47F32E_(EE)
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
Cooling system
Capacity*
Gasoline
engine
Without exhaust heat recirculator system
5.6 L (5.9 qt., 4.9 Imp.qt.)
With exhaust heat recirculator system
6.2 L (6.6 qt., 5.5 Imp.qt.)
Power
control unit1.4 L (1.5 qt., 1.2 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO FC16HR-CY9
Gap0.9 mm (0.035 in.)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

6638-1. Specifications
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8
Vehicle specifications
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
Electrical system (12-volt battery)
Specific gravity
reading at 20 C (68F):
1.25 or higher
If the specific gravity is lower than the
standard value, charge the battery.
Charging ratesQuick charge15 A max.
Slow charge5 A max.
Transmission
Fluid capacity*3.6 L (3.8 qt., 3.2 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■ Transmission fluid type
Using transmission fluid other than the above type may cause abnormal
noise or vibration, or ultimately damage the transmission of your vehicle.
Rear differential (rear electric motor) (AWD models)
Fluid capacity*1.2 L (1.3 qt., 1.1 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than the above type may cause abnormal
noise or vibration, or ultimately damage the transmission of your vehicle.

6648-1. Specifications
PRIUS_OM_OM47F32E_(EE)
*1: Minimum pedal clearance when depressed with a force of 300 N (30.6 kgf,
67.4 lbf) while the hybrid system is operating.
*2: Parking brake pedal travel when depressed with a force of 300 N (30.6 kgf,
67.4 lbf).
Brakes
Pedal clearance*1
Left-hand drive vehicles
119 mm (4.69 in.) Min.
Right-hand drive vehicles
117 mm (4.61 in.) Min.
Pedal free play1.0 — 6.0 mm (0.04 — 0.24 in.)
Parking brake pedal travel*28 —11 clicks
Fluid typeSAE J1703 or FMVSS No.116 DOT 3 or
SAE J1704 or FMVSS No.116 DOT 4
Steering
Free playLess than 30 mm (1.2 in.)

6658-1. Specifications
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8
Vehicle specifications
15-inch tires (vehicles without full-size spare tire)
15-inch tires (vehicles with full-size spare tire)
17-inch tires
Tires and wheels
Tire size195/65R15 91H
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front250 kPa (2.5 kgf/cm2 or bar, 36 psi)
Rear240 kPa (2.4 kgf/cm2 or bar, 35 psi)
Wheel size15  6 1/2J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Tire size195/65R15 91H
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front
220 kPa (2.2 kgf/cm2 or bar, 32 psi)
Rear
Wheel size15  6 1/2J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Tire size215/45R17 87W
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front220 kPa (2.2 kgf/cm2 or bar, 32 psi)
Rear210 kPa (2.1 kgf/cm2 or bar, 30 psi)
Wheel size17  7J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)

6668-1. Specifications
PRIUS_OM_OM47F32E_(EE)
Compact spare tire (if equipped)
■When towing a trailer*
Add 20.0 kPa (0.2 kgf/cm2 or bar, 3 psi) to the recommended tire inflation
pressure and drive at speeds below 100 km/h (62 mph).
*: Vehicles that can tow a trailer. (P. 233)
Tire sizeT125/70D17 98M
Tire inflation pressure
(Recommended cold tire
inflation pressure)
420 kPa (4.2 kgf/cm2 or bar, 60 psi)
Wheel size17  4T
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)

6678-1. Specifications
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8
Vehicle specifications
Light bulbs
Light bulbsWTyp e
ExteriorRear turn signal lights21A
Back-up light16B
Interior
Vanity lights8B
Front interior/personal lights5B
Rear interior light8C
Door courtesy lights5B
Luggage compartment light5B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
C: Double end bulbs

6688-1. Specifications
PRIUS_OM_OM47F32E_(EE)
Fuel infor mation
■Use of ethanol blended gasoline in a gasoline engine
Toyota allows the use of ethanol blended gasoline where the ethanol content
is up to 10%. Make sure that the ethanol blended gasoline to be used has a
Research Octane Number that follows the above.
■If your engine knocks
●Consult any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
●You may occasionally notice light knocking for a short time while accelerat-
ing or driving uphill. This is normal and there is no need for concern.
When you find these types of fuel label at the gas station, use
only the fuel with one of the following labels.

EU area:
You must only use unleaded gasoline conforming to European
standard EN228.
Select unleaded gasoline with a Research Octane Number of 95
or higher for optimum engine performance.
Except EU area (except Russia):
You must only use unleaded gasoline.
Select unleaded gasoline with a Research Octane Number of 95
or higher for optimum engine performance.
Except EU area (Russia):
You must only use unleaded gasoline.
Select unleaded gasoline with a Research Octane Number of 91
or higher for optimum engine performance.