2022 TOYOTA PRIUS PRIME fuel pressure

PRIUS PRIME_OM_OM47E74U_(U)
6217-3. Do-it-yourself maintenance
7
Maintenance and care
Tire valve
Tire pressure gauge
Remove the tire valve cap.
Press the tip of the tire pressure gauge onto the tire valve.
Read the pressure using the gauge gradations.
If the tire inflation pressure is not at the recommended level, adjust
the pressure.
If you add too much air, press the center of the valve to defla te.
After completing the tire inflation pressure measurement and
adjustment, apply soapy water to the valve and check for leakage.
Put the tire valve cap back on.
■Tire inflation pressure check interval
You should check tire inflation p ressure every two weeks, or at least once
a month.
Do not forget to check the spare.
■Effects of incorrect tire inflation pressure
Driving with incorrec t tire inflation pressure may result in th e 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 your Toyota dealer.
Inspection and adjustment procedure
1
2
1
2
3
4
5
6

6778-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47E74U_(U)
8
When trouble arises
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (front), side
impact sensors (rear), driver’s seat belt buckle switch, front passenger occu-
pant classification system (ECU and sensors), “AIR BAG ON” indi cator light,
“AIR BAG OFF” indicator light, front passenger’s seat belt buck le switch, seat
belt pretensioners, airbags, interconnecting wiring and power s ources.
( P. 36)
■ Front passenger detection sensor, seat belt reminder and warnin g
buzzer
● If luggage is placed on the front passenger seat, the front pas senger detec-
tion sensor may cause the warning light to flash and the warnin g 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 wa rning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the vol tage 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
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after several drivin g trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.
■
When the tire pressure warning light comes on
Inspect the appearance of the ti re to check that the tire is not punctured.
If the tire is punctured: P. 689
If the tire is not punctured:
Check the tire inflation pressure and adjust to the appropriate level. Initial-
izing the tire pressure warning system will not turn off the tire pressure
warning light.
■The tire pressure warning light may come on due to natural caus es
The tire pressure warning light may come on due to natural caus es such
as natural air leaks and tire inflation pressure changes caused by tem-
perature. In this case, adjusting the tire inflation pressure w ill turn off the
warning light (afte r a few minutes).
■Conditions that the tire pressure warning system may not functi on
properly
 P. 6 1 7

6798-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47E74U_(U)
8
When trouble arises
WARNING
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation p ressure
label (tire and load information label). (If your vehicle has t ires of a dif-
ferent size than the size indicated on the vehicle placard or t ire inflation
pressure label [tire and load information label], you should de termine
the proper tire inflation p ressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS -tire pressure warning system) that
illuminates a low tire pressure telltale (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Acco rdingly,
when the low tire pressure telltale (tire pressure warning ligh t) illumi-
nates, you should stop and check your tires as soon as possible , and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire tread lif e, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire maintenance, and it is the driver’s res ponsibility to
maintain correct tire pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warn-
ing system) malfunction indicato r to indicate when the system is not
operating properly. The TPMS (tire pressure warning system) mal func-
tion indicator is combined with the low tire pressure telltale (tire pressure
warning light). When the system detects a malfunction, the tell tale will
flash for approximately one minute and then remain continuously illumi-
nated. This sequence will continue upon subsequent vehicle star t-ups
as long as the malfunction exists . When the malfunction indicator is illu-
minated, the system may not be able to detect or signal low tir e pres-
sure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installation of replacement or alternate tires
or wheels on the vehicle that prevent the TPMS (tire pressure w arning
system) from functioning properly. Always check the TPMS (tire pres-
sure warning system) malfunction telltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning system) to
continue to function properly.

7048-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47E74U_(U)
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 ca use death
or serious injury.
●Drive the vehicle carefully at a low speed. Be especially careful when
turning and cornering.
●If the vehicle does not drive straight or you feel a pull throu gh 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 19 psi (130 kPa, 1.3 kgf/cm
2 or bar) or less, the tire may be severely dam-
aged.
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 obje ct may
widen the opening and disenable e mergency 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 sa nd at the
side of the road. If the repair kit vacuums up dust etc., a mal function
may occur.
■Precautions for the emergency tire puncture repair kit
●The repair kit power source should be 12 V DC suitable for vehi cle
use. Do not connect the repa ir kit to any other source.
●If fuel splatters on the repair kit, the repair kit may deterio rate. 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 chil-
dren.
●Do not disassemble or modify the repair kit. Do not subject par ts such
as the air pressure indicator to impacts. This may cause a malfunction.

PRIUS PRIME_OM_OM47E74U_(U)
7439-1. Specifications
9
Vehicle specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which
a tire may be inflated, shown on the sidewall
of the tire
Recommended
inflation pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of hybrid
transmission, power steering, power brakes,
power windows, power seats, radio and
heater, to the extent that these items are avail-
able as factory-installed equipment (whether
installed or not)
Curb weight
The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded
vehicle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
*
that follows
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below

797Alphabetical index
PRIUS PRIME_OM_OM47E74U_(U)
SwitchAudio remote control switches
*
Automatic High Beam
switch ................................. 352
Charging schedule switch ..... 162
Cruise control switch............. 409
Door lock switches ................ 281
Driving mode select switch ... 425
Emergency flashers switch ... 660
Engine switch........................ 332
EV auto mode switch .............. 90
EV/HV mode selection
switch ................................... 90
Fog light switch ..................... 357
Fuel filler door opener
switch ................................. 367
Garage door opener
switches.............................. 564
Heated steering wheel switch ................................. 536
“HUD” (Head-up display) switch ................................. 255
Ignition switch ....................... 332
Instrument cluster light
control switch...................... 194
LTA (Lane Tracing Assist) switch ................................. 398
Light switch ........................... 347
Meter control switches .......... 193
Outside rear view mirror switches.............................. 307
P position switch ................... 340
Power door lock switches ..... 281
Power switch......................... 332
Power window switch............ 309
Rear window and outside rear view mirror
defoggers switch ........ 512, 523
S-APGS switch ..................... 465
Seat heater switches ............ 536 “SOS” button........................... 76
Talk switch
*
Telephone switches*
TRIP switch .......................... 213
Vehicle-to-vehicle distance
switch ................................. 417
VSC OFF switch ................... 497
Window lock switch .............. 309
Windshield wipers and washer switch..................... 359
Wireless charger power
supply switch ...................... 553
Tail lights.................................. 347 Light switch ........................... 347
Replacing light bulbs ............ 657
Talk switch
*
Telephone switch*
Theft deterrent system Immobilizer system .. ............... 83
Tire inflation pressure............. 620 Maintenance data ................. 733
Warning light......................... 674
Tire information ....................... 738 Glossary ............................... 743
Size....................................... 739
Tire Identification Number .... 739
Uniform Tire Quality Grading .............................. 741
Tire pressure warning system.................................... 613 Function ................................ 613
Initializing .............................. 613
Installing tire pressure warning valves and
transmitters ........................ 613
Registering ID codes ............ 614
Warning light......................... 674
T
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.

799Alphabetical index
PRIUS PRIME_OM_OM47E74U_(U)
Vanity lights ............................. 549Wattage ................................ 734
Vanity mirrors .......................... 549
Vehicle data recording .............. 10
Vehicle identification number ................................... 727
Vehicle proximity notification system ...................................... 93
Vehicle Stability Control (VSC) ...................................... 496
Voice command system
*
VSC (Vehicle Stability
Control) .................................. 496
Warning buzzers Approach warning ................. 419
Brake system ....... ................. 671
Intuitive parking assist .......... 444
LTA (Lane Tracing Assist) .... 395
Open door ..................... 283, 673
Parking Support Brake function ............................... 457
Pre-collision warning............. 379
Radar cruise control.............. 419
RCTA (Rear Cross Traffic Alert) ................................... 427
RSA (Road Sign Assist)........ 405
Seat belt reminder ................ 674
Shift position ......................... 341 Warning lights ......................... 202
ABS ...................................... 672
Brake Override System ........ 675
Brake system ....... ................. 671
Charging system................... 671
Drive-Start Control ................ 675
Driver’s seat belt reminder light..................................... 674
Electronic engine control system .......... ...................... 671
Electric power steering
system .......... ...................... 672
Front passenger’s seat belt reminder light ..................... 674
High coolant temperature ..... 673
Low engine oil pressure........ 671
Low fuel level ........................ 673
Malfunction indicator lamp .... 671
Master warning light ............. 674
Open door............................. 673
Parking Support Brake function............................... 675
PCS ...................................... 672
PKSB OFF indicator ............. 673
Rear passengers’ seat belt
reminder light ..................... 674
Seat belt reminder light......... 674
Slip indicator ......................... 673
SRS ...................................... 672
Tire pressure ........................ 674
V
W
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL” or “MULTIMEDIA OWNER’S MANUAL”.

808
PRIUS PRIME_OM_OM47E74U_(U)
GAS STATION INFORMATION
Auxiliary catch leverFuel filler door
P. 595 P. 367
Fuel filler door openerHood lock release
leverTire inflation pressure
P. 367 P. 595P. 733
Fuel tank capacity
(Reference)11.4 gal. (43 L, 9.5 Imp.gal.)
Fuel type
Unleaded gasoline only P. 728
Cold tire inflation
pressure P. 7 3 3
Engine oil capacity
(Drain and refill —
reference)With filter
Without filter
4.4 qt. (4.2 L, 3.7 Imp.qt.)
4.1 qt. (3.9 L, 3.4 Imp.qt.)
Engine oil type “Toyota Genuine Motor Oil” or equivalent
Oil grade: ILSAC GF-6B multigrade engine oil
P. 730