Toyota Prius (2023 year). Manual in english - page 40

662

8-1. 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.

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 unit

1.4 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)

Make

DENSO FC16HR-CY9

Gap

0.9 mm (0.035 in.)

NOTICE

■

Iridium-tipped spark plugs

Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

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8-1. Specifications

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*

: 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 rates

Quick charge

15 A max.

Slow charge

5 A max.

Transmission

Fluid capacity

*

3.6 L (3.8 qt., 3.2 Imp.qt.)

Fluid type

Toyota 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 type

Toyota 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.

664

8-1. Specifications

*

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 play

1.0 — 6.0 mm (0.04 — 0.24 in.)

Parking brake pedal travel

*

2

8 —



11 clicks

Fluid type

SAE J1703 or FMVSS No.116 DOT 3 or 
SAE J1704 or FMVSS No.116 DOT 4

Steering

Free play

Less than 30 mm (1.2 in.)

665

8-1. Specifications

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

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 size

195/65R15 91H

Tire inflation pressure 
(Recommended cold tire 
inflation pressure)

Front

250 kPa (2.5 kgf/cm

2

 or bar, 36 psi)

Rear

240 kPa (2.4 kgf/cm

2

 or bar, 35 psi)

Wheel size

15 



 6 1/2J

Wheel nut torque

103 N•m (10.5 kgf•m, 76 ft•lbf)

Tire size

195/65R15 91H

Tire inflation pressure 
(Recommended cold tire 
inflation pressure)

Front

220 kPa (2.2 kgf/cm

2

 or bar, 32 psi)

Rear

Wheel size

15 



 6 1/2J

Wheel nut torque

103 N•m (10.5 kgf•m, 76 ft•lbf)

Tire size

215/45R17 87W

Tire inflation pressure 
(Recommended cold tire 
inflation pressure)

Front

220 kPa (2.2 kgf/cm

2

 or bar, 32 psi)

Rear

210 kPa (2.1 kgf/cm

2

 or bar, 30 psi)

Wheel size

17 



 7J

Wheel nut torque

103 N•m (10.5 kgf•m, 76 ft•lbf)

666

8-1. Specifications



Compact spare tire (if equipped)

■

When towing a trailer

*

Add 20.0 kPa (0.2 kgf/cm

2

 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 size

T125/70D17 98M

Tire inflation pressure
(Recommended cold tire 
inflation pressure)

420 kPa (4.2 kgf/cm

2

 or bar, 60 psi)

Wheel size

17 



 4T

Wheel nut torque

103 N•m (10.5 kgf•m, 76 ft•lbf)

667

8-1. Specifications

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Light bulbs

Light bulbs

W

Type

Exterior

Rear turn signal lights

21

A

Back-up light

16

B

Interior

Vanity lights

8

B

Front interior/personal lights

5

B

Rear interior light

8

C

Door courtesy lights

5

B

Luggage compartment light

5

B

A: Wedge base bulbs (amber)

B: Wedge base bulbs (clear)

C: Double end bulbs

668

8-1. Specifications

Fuel information

■

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.

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8-1. Specifications

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NOTICE

■

Notice on fuel quality

●

Do not use improper fuels. If improper fuels are used, the engine will be
damaged.

●

Do not use gasoline with metallic additives, for example manganese, iron
or lead, otherwise it may cause damage on your engine or emission con-
trol system.

●

Do not add aftermarket fuel additives which contain metallic additives.

●

EU area: Bioethanol fuel sold under names such as “E50” or “E85” and
fuel containing a large amount of ethanol should not be used. The use of
these fuels will damage the vehicle’s fuel system. In case of any doubt,
ask any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.

●

Except EU area: Bioethanol fuel sold under names such as “E50” or “E85”
and fuel containing a large amount of ethanol should not be used. Your
vehicle can use gasoline mixed with 10% max ethanol. The use of fuel
with more than 10% ethanol content (E10) will damage the vehicle’s fuel
system. You must ensure that refueling is carried out only from a source
where fuel specification and quality can be guaranteed. In case of any
doubt, ask any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer.

●

Do not use the methanol blended gasoline such as M15, M85, M100. 
The use of gasoline containing methanol may cause engine damage or
failure.

670

8-2. Customization

Customizable features

When customizing vehicle features, ensure that the vehicle is parked
in a safe place with the parking brake set and the shift position in P.

■

Changing using the multi-information display

Press 

 or 

 of the meter control switches, select 

.

Press 

 or 

 of the meter control switches, select 

(“Vehicle Settings”), and then press 

.

Press 

 or 

 of the meter control switches, select the item,

and then press 

.

Press 

 or 

 of the meter control switches, select the desired

setting, and then press 

.

To go back to the previous screen or exit the customize mode,

press .

Your vehicle includes a variety of electronic features that can be
personalized to suit your preferences. The settings of these fea-
tures can be changed using the multi-information display, the
navigation/multimedia system, or at any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.

Some function settings are changed simultaneously with other func-
tions being customized. Contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer for further details.

Customizing vehicle features

1

2

3

4

671

8-2. Customization

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■

Changing using the navigation/multimedia system

Press the “SETUP” button.
Select “Vehicle” on the “Setup” screen and select “Vehicle cus-
tomization”.

Various settings can be changed. Refer to the list of settings that
can be changed for details.

Settings that can be changed using the multi-information display
Settings that can be changed using the navigation/multimedia sys-
tem
Settings that can be changed by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer

Definition of symbols: O = Available, – = Not available

■

Instrument cluster (



P. 100)

Customizable features

1

2

1
2

3

Function

Default 

setting

Customized 

setting

Sensor sensitivity for darken-
ing the brightness of the
instrument cluster depending
on the outside brightness

Standard

-2 to 2

–

–

O

Sensor sensitivity for returning
the brightness of the instru-
ment cluster to the original
level depending on the outside
brightness

Standard

-2 to 2

–

–

O

1

2

3

672

8-2. Customization

■

Smart entry & start system and wireless remote control 
(



P. 177, 187)

■

Smart entry & start system (



P. 187)

*

: If equipped

■

Wireless remote control (



P. 177)

■

Rear seat reminder (



P. 180)

Function

Default 

setting

Customized 

setting

Operation signal 
(emergency flashers)

On

Off

–

O O

Open door reminder buzzer
(When locking the vehicle)

On

Off

–

–

O

Time elapsed before the auto-
matic door lock function is
activated if a door is not
opened after being unlocked

30 seconds

60 seconds

–

–

O

120 seconds

1

2

3

Function

Default 

setting

Customized 

setting

Smart entry & start system

On

Off

–

O O

Number of consecutive door
lock operations

*

2 times

As many as 

desired

–

–

O

1

2

3

Function

Default 

setting

Customized 

setting

Wireless remote control

On

Off

–

–

O

1

2

3

Function

Default 

setting

Customized 

setting

Rear seat reminder function

On

Off

O

–

–

1

2

3

673

8-2. Customization

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■

Outside rear view mirrors (



P. 207)

■

Power windows and moon roof

*

 (



P. 210, 215)

*

: If equipped

■

Reverse warning buzzer (



P. 253)

■

Turn signal lever (



P. 259)

Function

Default 

setting

Customized 

setting

Automatic mirror folding and
extending operation

Linked to the 

locking/

unlocking of 

the doors

Off

–

–

O

Linked to 

operation of 

the power 

switch

1

2

3

Function

Default 

setting

Customized 

setting

Mechanical key linked opera-
tion (open)

Off

On

–

–

O

Mechanical key linked opera-
tion (close)

Off

On

–

–

O

Wireless remote control linked
operation (open)

Off

On

–

–

O

Wireless remote control linked
operation (close)

Off

On

–

–

O

Wireless remote control linked
operation signal (buzzer)

On

Off

–

–

O

1

2

3

Function

Default 

setting

Customized 

setting

Signal (buzzer) when the shift
position is in R

Off

Intermittent

–

–

O

1

2

3

Function

Default 

setting

Customized 

setting

Times of flashing of the lane
change signal flashers

3

Off

–

–

O

5

7

1

2

3

674

8-2. Customization

■

Automatic light control system (



P. 261)

■

Rain-sensing windshield wipers

*

 (



P. 271)

*

: If equipped

Function

Default 

setting

Customized 

setting

Light sensor sensitivity

Level 0

Level -2 to 2

–

O O

Time elapsed before head-
lights turn off (Extended Head-
light Lighting system)

30 seconds

60 seconds

–

–

O

90 seconds

120 seconds

1

2

3

Function

Default 

setting

Customized 

setting

Wiper operation when the

wiper switch is in the 
position

Rain-sensing 

operation

Intermittent 

operation 

linked to vehi-

cle speed 

(with interval 

adjuster)

–

–

O

1

2

3

675

8-2. Customization

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■

RSA (Road Sign Assist)

*

1

 (



P. 323)

*

1

: If equipped

*

2

: RSA (Road Sign Assist) function becomes On when the power switch is

turned to ON mode.

*

3

: If a speed limit with supplemental mark is exceeded, the notification buzzer

does not operate.

*

4

: Vehicles with navigation system.

■

BSM (Blind Spot Monitor)

*

 (



P. 356)

*

: If equipped

Function

Default 

setting

Customized 

setting

RSA (Road Sign Assist)

*

2

On

Off

O

–

–

Excess speed notification
method

*

3

Display only

No notification

O

–

–

Display and 

buzzer

Excess speed notification
level

2 km/h 

(1 mph)

5 km/h 

(3 mph)

O

–

–

10 km/h 

(5 mph)

No overtaking notification
method

Display only

No notification

O

–

–

Display and 

buzzer

Other notifications method
(No-entry notification)

*

4

Display only

No notification

O

–

–

Display and 

buzzer

1

2

3

Function

Default 

setting

Customized 

setting

Outside rear view mirror indi-
cator brightness

Bright

Dim

–

–

O

1

2

3

676

8-2. Customization

■

Toyota parking assist-sensor

*

 (



P. 381)

*

: If equipped

■

S-IPA (Simple Intelligent Parking Assist System)

*

 (



P. 405)

*

: If equipped

■

Automatic air conditioning system (



P. 458)

Function

Default 

setting

Customized 

setting

Detection distance of the front
center sensors

Far

Near

–

–

O

Detection distance of the rear
center sensors

Far

Near

–

–

O

Buzzer volume

3

1 to 5

–

–

O

1

2

3

Function

Default 

setting

Customized 

setting

Obstacle detection range

Standard

Near

–

–

O

Slightly far

Far

Back-in parking space

Standard

Narrow

–

–

O

Slightly wide

Wide

Parallel parking space

Standard

Narrow

–

–

O

Slightly wide

Wide

1

2

3

Function

Default 

setting

Customized 

setting

Switching between outside air
and recirculated air mode
linked to A/C auto switch oper-
ation

On

Off

–

O O

1

2

3

677

8-2. Customization

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■

Illumination (



P. 470)

■

Maintenance system

*

: If equipped

Function

Default 

setting

Customized 

setting

Time elapsed before the inte-
rior lights turn off

15 seconds

Off

–

O O

7.5 seconds

30 seconds

Operation after the power
switch is turned off

On

Off

–

–

O

Operation when the doors are
unlocked

On

Off

–

–

O

Operation when you approach
the vehicle with the electronic
key on your person

On

Off

–

–

O

Footwell lighting

On

Off

–

–

O

Interior lights illumination con-
trol

On

Off

–

–

O

1

2

3

Tire pressure warning 
system

*

Initializing the tire pressure warning system:



P. 530