2010 TOYOTA PRIUS fuel tank

TABLE OF CONTENTSIndex
2
PRIUS_U (OM47668U) U.S.A.
1-1. Hybrid systemHybrid system ...................... 28
1-2. Key information Keys ..................................... 41
Smart key system (with entry function) ............ 43
Smart key system 
(without entry function) ....... 57
1-3. Opening,
closing and locking
the doors and back door
Wireless remote cont

rol ....... 63
Side doors ............................ 67
Back door ............................. 72
1-4.
Adjustable components
(seats, mirrors, steering
wheel)
Front seats

........................... 78
Rear seats ............................ 80
Head restraints ..................... 82
Seat belts ............................. 85
Steering wheel ..................... 92
Inside rear view mirror.......... 93
Outside rear view mirrors ..... 96 1-5. Opening and
closing
t
he windows and moon roof
Power windows..................... 98
Moonroof  with Solar Panel ............... 100
1-6. Refueling Opening the fuel tank cap... 104
1-7. Theft deterrent system Immobilizer system ............. 108
Theft prevention labels 
(U.S.A.) ............................. 110
1-8. Safety information Correct driving posture ....... 111
SRS airbags ....................... 113
Front passenger occupant 
classification system ......... 126
Child restraint systems ....... 132
Installing child restraints ..... 137
1Before driving

Before driving1
27
PRIUS_U (OM47668U) U.S.A.
1-1. Hybrid systemHybrid system .................... 28
1-2. Key information Keys ................................... 41
Smart key system (with entry function) ......... 43
Smart key system  (without entry function) .... 57
1-3. Opening, closing and locking the doors and back door
Wireless remote control ..... 63
Side doors .......................... 67
Back door ........................... 72
1-4. Adjustable components (seats, mirrors, steering
wheel)
Front seats ......................... 78
Rear seats.......................... 80
Head restraints................... 82
Seat belts ........................... 85
Steering wheel ................... 92
Inside rear view mirror ....... 93
Outside rear view mirrors ... 96 1-5. Opening and closing the

windows and moon roof
Power windows .................. 98
Moonroof with Solar 
Panel.............................. 100
1-6. Refueling Opening the fuel tank 
cap ................................. 104
1-7. Theft deterrent system Immobilizer system .......... 108
Theft prevention labels 
(U.S.A.) .......................... 110
1-8. Safety information Correct driving posture..... 111
SRS airbags ..................... 113
Front passenger occupant 
classification system ...... 126
Child restraint systems..... 132
Installing child 
restraints ........................ 137

104
PRIUS_U (OM47668U) U.S.A.
1-6. Refueling
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap.
■Before refueling the vehicle
Turn the “POWER” switch OFF and ensure that all the doors and
windows are closed.
■ Opening the fuel tank cap
Pull the lever.
Turn the cap slowly counter-
clockwise, then pause slightly
before removing it.
Hang the fuel tank cap on the
back of the fuel filler door.
STEP1
STEP2
STEP3

105
1-6. Refueling
1
Before driving
PRIUS_U (OM47668U) U.S.A.
Closing the fuel tank cap
After refueling, turn the fuel tank
cap clockwise until you hear a
click. The cap will revolve slightly
in the opposite direction once
released.
■ Fuel types
Use unleaded gasoline. (Octane Rating 87 [Research Octane Number 91] or
higher)
■ Fuel tank capacity
Approximately 11.9 gal. (45 L, 9.9 Imp. gal.)

106 1-6. Refueling
PRIUS_U (OM47668U) U.S.A.
CAUTION
■When refueling the vehicle
Observe the following precautions while refueling the vehicle. 
Failure to do so, may result in death or serious injury.
● Touch the vehicle or some other metal surface to discharge any static
electricity. 
Sparks resulting from discharging static electricity may cause the fuel
vapors to ignite.
● Always hold the grips on the fuel tank cap and turn it slowly to remove it. 
A whooshing sound may be heard when the fuel tank cap is loosened.
Wait until the sound cannot be heard before fully removing the cap. In hot
weather, pressurized fuel may spray out the filler neck and cause injury.
● Do not allow anyone that has not discharged static electricity from their
bodies to come close to an open fuel tank.
● Do not inhale vaporized fuel. 
Fuel contains substances that are harmful if inhaled.
● Do not smoke while refueling the vehicle. 
Doing so may cause the fuel to ignite and cause a fire.
● Do not return to the vehicle or touch any person or object that is statically
charged. 
This may cause static electricity to build up, resulting in a possible ignition
hazard.
■ When replacing the fuel tank cap
Do not use anything but a genuine Toyota fuel tank cap designed for your
vehicle. Doing so may cause a fire or other incident which may result in
death or serious injury.

181
2
When driving
PRIUS_U (OM47668U) U.S.A.
2-2. Instrument cluster
Gauges and meters
The following gauges and meters illuminate when the “POWER”
switch is in ON mode.Fuel gauge
Displays the quantity of fuel remaining in the tank.
Speedometer
Displays the vehicle speed.
Instantaneous fuel consumption
Displays the current rate of fuel consumption.
Shift position indicators
Displays the shift position.

199
2-2. Instrument cluster
2
When driving
PRIUS_U (OM47668U) U.S.A.
●
Odometer
● Trip meter
● Distance to empty Displays the total distance the vehicle has been
driven.
Displays the distance the vehicle has been driven
since the meter was last reset. Trip meters A and
B can be used to record and display different dis-
tances independently.
Displays the estimated
maximum distance that
can be driven with the quantity of fuel remaining.
• This distance is computed based on your average fuel consumption. As a result, the actual distance
that can be driven may differ from that displayed.
• When only a small amount of fuel is added to the tank, the display may not be updated.

415
4-2. Maintenance
4
Maintenance and care
PRIUS_U (OM47668U) U.S.A.
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which
include OBD (On Board Diagnostics) checks. The OBD system moni-
tors the operation of the emission control system.
■If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere
in the emission control system. Your vehicle may not pass the I/
M test and may need to be repaired. Contact your Toyota dealer
to service the vehicle.
■ Your vehicle may not pass the I/M test:
●When the 12 volt battery is disconnected or discharged
Readiness codes that are se t during ordinary driving are
erased. 
Also, depending on your driving habits, the readiness codes
may not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on as a temporary mal-
function and your vehicle may not pass the I/M test.
■ When the malfunction indicator lamp goes off after several
driving trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Toyota dealer to prepare the vehicle for re-testing.