2023 TOYOTA PRIUS fuel pressure

15Pictorial index
PRIUS_OM_OM47F32E_(EE)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 271
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 452
Precautions against car wash (vehicles with rain-sensing
windshield wipers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 498
Replacing the wiper insert . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 550
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 277
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 277
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 657
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 528
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 665
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 452
Checking/rotation/tire pressure warning system
*1 . . . . . . . . . P. 528
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 598, 618
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 511
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 511
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 658
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 645
Headlights/front position lights/
daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 261
Front fog lights/rear fog light
*2 . . . . . . . . . . . . . . . . . . . . . . P. 270
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 259
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 261
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 261
Back-up light
*2
Shifting the shift lever to R. . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 253
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 561, Watts: P. 667)
*1: If equipped
*2: They may be located on the opposite side depending on the target region.
8
9
10
11
12
13

1122. Instrument cluster
PRIUS_OM_OM47F32E_(EE)
*1: These lights turn on when the power switch is turned to ON mode to indi-
cate that a system check is being performed. They will turn off after the
hybrid system is on, or after a few seconds. There may be a malfunction in
a system if a light does not come on, or turn off. Have the vehicle
inspected by any authorized Toyota retailer or Toyota authorized repairer,
or any reliable repairer.
*2: The light flashes or illuminates to indicate a malfunction.
*3: The light flashes to indicate a malfunction.
The indicators inform the driver of the operating state of the vehicle’s
various systems.
Low fuel level warning light P. 583
Driver’s and front passenger’s seat belt
reminder lightP. 584
Rear passengers’ seat belt reminder light P. 584
*1Master warning light P. 584
*1Tire pressure warning light (if equipped) P. 584
Indicators
Warning lightsPages
IndicatorsPages
Turn signal indicator P. 259
Tail light indicator P. 261
Parking brake indicator P. 260
Headlight high beam indicator P. 262

4514-6. Driving tips
4
Driving
PRIUS_OM_OM47F32E_(EE)
◆Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. Improper
tire inflation pressure can cause poor fuel economy.
Also, as snow tires can cause large amounts of friction, their use on
dry roads can lead to poor fuel economy. Use tires that are appro-
priate for the season.
◆Luggage
Carrying heavy luggage will lead to poor fuel economy. Avoid carry-
ing unnecessary luggage. Installing a large roof rack will also cause
poor fuel economy.
◆Warming up before driving
Since the gasoline engine starts up and cuts out automatically
when cold, warming up the engine is unnecessary. Moreover, fre-
quently driving short distances will cause the engine to repeatedly
warm up, which can lead to excess fuel consumption.

5376-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
6
Maintenance and care
Tire inflation pressure
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor handling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drive train
If a tire needs frequent inflating, have it checked by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven
for more than 1.5 km or 1 mile, you will get an accurate cold tire inflation
pressure reading.
●Always use a tire pressure gauge.
It is difficult to judge if a tire is properly inflated based only on its appear-
ance.
●It is normal for the tire inflation pressure to be higher after driving as heat is
generated in the tire. Do not reduce tire inflation pressure after driving.
●Passengers and luggage weight should be placed so that the vehicle is bal-
anced.
Make sure to maintain proper tire inflation pressure. Tire infla-
tion pressure should be checked at least once per month. How-
ever, Toyota recommends that tire inflation pressure be checked
once every two weeks. (P. 665)

5867-2. Steps to take in an emergency
PRIUS_OM_OM47F32E_(EE)
*5: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert the rear
passenger that his or her seat belt is not fastened. If the seat belt is unfas-
tened, the buzzer sounds intermittently for a certain period of time, after
the seat belt is fastened and unfastened and the vehicle reaches a certain
speed.
*6: This symbol is displayed on the multi-information display.
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage tempo-
rarily drops, the electric power steering system warning light may come on
and the warning buzzer may sound.
■ If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle imme-
diately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota retailer or Toyota authorized repai rer, or any reliable repairer as soon
as possible.
■ When the tire pressure warning light comes on (if equipped)
Inspect the appearance of the tire to check that the tire is not punctured.
If the tire is punctured: P. 598, 618
If the tire is not punctured:
Carry out the following procedure after the tire temperature has lowered suffi-
ciently.
● Check the tire inflation pressure and adjust to the appropriate level.
● If the warning light does not go out even after several minutes, check that
the tire inflation pressure is at the specified level and carry out initialization.
( P. 531)
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficiently.

6167-2. Steps to take in an emergency
PRIUS_OM_OM47F32E_(EE)
WARNING
■Driving to spread the liquid sealant evenly
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or
serious injury.
● Drive the vehicle carefully at a low speed. Be especially careful when turn-
ing and cornering.
● If the vehicle does not drive straight or you feel a pull through the steering
wheel, stop the vehicle and check the following.
• Tire condition. The tire may have separated from the wheel.
• Tire inflation pressure. If the tire inflation pressure is 130 kPa (1.3 kgf/cm2
or bar, 19 psi) or less, the tire may be severely damaged.
NOTICE
■ When performing an emergency repair
● A tire should only be repaired with the emergency tire puncture repair kit if
the damage is caused by a sharp object such as nail or screw passing
through the tire tread.
Do not remove the sharp object from the tire. Removing the object may
widen the opening and disenable emergenc y repair with the repair kit.
● The repair kit is not waterproof. Make sure that the repair kit is not
exposed to water, such as when it is being used in the rain.
● Do not put the repair kit directly onto dusty ground such as sand at the
side of the road. If the repair kit vacuums up dust etc., a malfunction may
occur.
● Make sure the sealant bottle of the repair kit is in a vertical position. The
repair kit does not operate properly when it is laid.
■ Precautions for the emergency tire puncture repair kit
● The repair kit power source should be 12 V DC suitable for vehicle use. Do
not connect the repair kit to any other source.
● If fuel splatters on the repair kit, the repair kit may deteriorate. Take care
not to allow fuel to contact it.
● Place the repair kit in a storage to prevent it from being exposed to dirt or
water.
● Store the repair kit in the luggage compartment out of reach of children.
● Do not disassemble or modify the repair kit. Do not subject parts such as
the air pressure indicator to impacts. This may cause a malfunction.

699Alphabetical index
PRIUS_OM_OM47F32E_(EE)
Emergency flashers switch ... 568
Engine switch (power
switch) ................................ 244
EV drive mode switch ........... 250
Fog light switch ..................... 270
Fuel filler door opener
switch.................................. 279
“HUD” (Head-up display)
switch.................................. 161
Ignition switch (power
switch) ................................ 244
Instrument cluster light
control switch ...................... 102
LTA (Lane Tracing Assist)
switch.................................. 315
Light switch ........................... 261
Meter control switches .......... 101
Moon roof switches ............... 215
Outside rear view mirror
switches.............................. 207
P position switch ................... 254
Power door lock switches ..... 179
Power switch ......................... 244
Power window switch ............ 210
Rear window wiper and
washer switch ..................... 275
Rear window and outside
rear view mirror defoggers
switch.................................. 463
S-IPA switch.......................... 408
Seat heater switches............. 469
“SOS” button ........................... 74
Speed limiter ......................... 353
Talk switch
*
Telephone switches*
TRIP switch ........................... 121Vehicle-to-vehicle distance
switch ................................. 337
VSC OFF switch ................... 443
Window lock switch............... 210
Windshield wipers and
washer switch ..................... 271
Wireless charger power
supply switch ...................... 487
Tail lights .................................. 261
Light switch ........................... 261
Replacing light bulbs............. 565
Talk switch
*
Telephone switch*
Theft deterrent system
Alarm ...................................... 93
Double locking system ............ 92
Immobilizer system ................. 91
Intrusion sensor ...................... 96
Tire inflation pressure ............. 537
Maintenance data ................. 665
Warning light ......................... 584
Tire pressure warning
system .................................... 530
Function ................................ 530
Initializing .............................. 530
Installing tire pressure
warning valves and
transmitters......................... 530
Registering ID codes ............ 531
Warning light ......................... 584
T
*: Refer to “Navigation and multimedia system Owner’s manual”.

701Alphabetical index
PRIUS_OM_OM47F32E_(EE)
Warning buzzers
Approach warning ................. 339
Brake system ........................ 580
LTA (Lane Tracing Assist) .... 312
Open door ..................... 180, 583
Parking Support Brake
function ............................... 400
Pre-collision warning ............. 297
Radar cruise control .............. 339
RCTA (Rear Crossing Traffic
Alert) ................................... 356
Seat belt reminder................. 584
Shift position ......................... 255
Toyota parking
assist-sensor ...................... 385Warning lights.......................... 110
ABS....................................... 581
Brake Override System......... 585
Brake system ........................ 580
Charging system ................... 580
Drive-Start Control ................ 585
Driver’s seat belt reminder
light..................................... 584
Electronic engine control
system ................................ 581
Electric power steering
system ................................ 581
Front passenger’s seat belt
reminder light...................... 584
High coolant temperature ..... 583
Low engine oil pressure ........ 581
Low fuel level ........................ 583
Malfunction indicator lamp .... 581
Master warning light.............. 584
Open door ............................. 583
Parking Support Brake
function ............................... 585
PCS ...................................... 582
PKSB OFF indicator ............. 583
Rear passengers’ seat belt
reminder light...................... 584
Seat belt reminder light ......... 584
Slip indicator ......................... 582
SRS ...................................... 581
Tire pressure......................... 584
W
*: Refer to “Navigation and multimedia system Owner’s manual”.