2008 TOYOTA PRIUS engine

468 6-1. Specifications
PRIUS_U_(L/O_0802)
Electrical system
Transmission
12 volt battery
Open voltage at
68F (20 C): 12.6 
12.8V Fully charged
12.2  12.4V Half charged
11 . 5  11.9V Discharged
(Voltage is checked 20 minutes after
the engine and all lights are turned
off.)
Charging rates 3.5A max.
Fluid capacity
Drain and refill3.8 qt. (3.6 L, 3.2 lmp.qt.)
Fluid type Toyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of your transmission accompanied by
vibration, and ultimately damage the transmission of your vehicle.

469
6-1. Specifications
6
Vehicle specifications
PRIUS_U_(L/O_0802)
Brakes
*1: Minimum pedal clearance when depressed with a force of 44 lbf (196 N,
20.0 kgf) while the engine is running.
*2: Parking brake pedal travel when depressed with a force of 66.0 lbf (294 N,33.0 kgf).
Pedal clearance *13.98 in. (101.0 mm) Min.
Pedal free play Less than 0.04 - 0.24 in. (1.0 - 6.0 mm)
Brake pad wear limit 0.04 in. (1.0 mm)
Parking brake pedal
travel
*26  9 clicks
Parking brake lining wear
limit 0.04 in. (1.0 mm)
Fluid type
SAE J1703 or FMVSS No. 116 DOT 3

472
6-1. Specifications
PRIUS_U_(L/O_0802)
Fuel infor mation
■Fuel tank opening fo r unleaded gasoline
To help prevent incorrect fueling, your Toyota has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
■ If your engine knocks
● Consult your Toyota dealer.
● You may occasionally notice light knocking for a short time while acceler-
ating or driving uphill. This is normal and there is no need for concern.
■ Gasoline quality
In very few cases, driveability problems may be caused by the brand of gas-
oline you are using. If driveability problems persist, try changing the brand of
gasoline. If this does not correct the problem, consult your Toyota dealer.
■ Gasoline quality standards
● Automotive manufacturers in the US, Europe and Japan have developed
a specification for fuel quality called World-Wide Fuel Charter (WWFC)
that is expected to be applied worldwide.
● The WWFC consists of four categories that are based on required emis-
sion levels. In the US, category 4 has been adopted.
● The WWFC improves air quality by lowering emissions in vehicle fleets,
and customer satisfaction through better performance.
■ Toyota recommends the use of gaso line containing detergent additives
● Toyota recommends the use of gasoline that contains detergent additives
to avoid build-up of engine deposits.
● All gasoline sold in the US contains detergent additives to clean and/or
keep clean intake systems.
Your vehicle must use only unleaded gasoline.
Unleaded gasoline with an Octa ne Rating 87 (Research Octane Num-
ber 91) or higher required for optimum engine performance.
At minimum, the gasoline you us e should meet the specifications
of ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.

474 6-1. Specifications
PRIUS_U_(L/O_0802)
NOTICE
■Notice on gasoline quality
● Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
● Do not use gasohol other than that stated here.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Using unleaded gasoline with an octane number or rating lower than that
stated here will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■ Fuel-related p oor driveability
If after using a different type of fuel, poor driveability is encountered (poor
hot starting, vaporization, engine knocking, etc.), discontinue the use of that
type of fuel.
■ When refueling with gasohole
Take care not to spill gasohol. It can damage your vehicle’s paint.

481
6-1. Specifications
6
Vehicle specifications
PRIUS_U_(L/O_0802)
Warning: The temperature grades for this tire are established for a
tire that is properly inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can caus e heat buildup and possible tire fail-
ure.
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
pressure The maximum cold inflated
pressure to which a
tire may be inflated, s hown on the sidewall of
the tire
Recommended
inflation pressure Cold tire inflation pressure recommended by a
manufacturer.
Accessory weight The combined weight (in excess of those stan-
dard items which may be replaced) of trans-
mission, power steering, power brakes, power
windows, power seats, radio and heater, to the
extent that these items
are available 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
weight 150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that
follows

491
6
Vehicle specifications
PRIUS_U_(L/O_0802)
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Power window • After reconnecting or changing the
12 volt battery
• After changing a fuse P. 7 5
Engine oil mainte-
nance data • After changing engine oil
P. 369
Tire pressure warning
system • When rotating the tires on vehicles
differing with front and rear tire infla-
tion pressures.
• When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
• When changing the tire size. P. 381
After reconnecting or performing
maintenance on the 12 volt battery,
the following items must be initia lized for normal system operation.

501
Alphabetical index
PRIUS_U_(L/O_0802)
Child safety
Airbag precautions ................. 96
Child restraint system ........... 107
Child-protectors ...................... 52
How your child should wear the seatbelt .......................... 67
Installing child restraints ....... 110
Power window lock switch ...... 75
Power window precautions..... 77
Removed electronic key battery precautions ........................ 397
Seat belt precautions.............. 68
Back door ............................... 56
Cleaning Exterior ................................. 346
Interior .................................. 348
Seat belts ............................. 349
Clock ........................................ 331
Condenser ............................... 373
Console box............................. 323
Cooling system Hybrid system overheating ... 456
Cruise control Cruise control ....................... 164
Cup holders ............................. 325
Curtain shield airbags .............. 89
Customizable features ............ 488
Daytime running light system ................................... 151
Defogger Rear window......................... 217
Side mirror ............................ 217
Dimension ................................ 462
Dinghy towing ......................... 182
Display Touch screen........................ 186
Trip information ...................... 27
Do-it-yourself maintenance .... 357
Door courtesy lights ............... 318
Door pocket ............................. 326 Doors
Door lock .....................36, 49, 51
Rear door child protector.........52
Driver’s seat belt reminder light .........................................429
Driving
break-in tips...........................121
Correct posture .......................87
Procedures ............................120
Winter driving tips..................177
Electronic key Replacing battery ..................396
When the electronic key battery is discharged.......................450
Electric Power Steering ...........170
Emergency, in case of
If a warning light turns on ......426
If the electronic key does not operate properly..................450
If the hybrid system will not
start .....................................448
If the 12 volt battery is discharged .........................451
If you have a flat tire .............438
If you lose your keys .............449
If you think something is wrong ..................................423
If your vehicle becomes stuck ...................................459
If your vehicle needs to be towed ..................................416
If your vehicle overheats .......456
Engine Compartment ........................364
Hood......................................361
How to start the hybrid system ................................130
If the hybrid system will
not start ...............................448
Overheating...........................456
“POWER” switch ...................130
D
E

502 Alphabetical index
PRIUS_U_(L/O_0802)
Engine compartment cover..... 365
Engine/power control unit coolant
Capacity ................................467
Checking ............................... 371
Preparing and checking before winter ....................... 177
Engine oil Capacity ................................466
Checking ............................... 365
Preparing and checking before winter ....................... 177
Engine oil maintenance data ......................................... 369
Event data recorder .................424
Floor mats.................................335
Fluid
Brake .....................................373
Washer .................................. 378
Fog lights
Switch.................................... 156
Wattage .................................471
Front passenger occupant
classification system ............101
Front passenger’s seat belt reminder light.........................429
Front seats Adjustment .............................. 57
Front turn signal lights
Wattage .................................471
Fuel Capacity ................................464
Fuel gauge ............................ 143
Gas station information .........512
Information ............................ 472
Refueling ................................. 78
Type ......................................472
Fuel door.....................................78
Fuel filler door ............................ 78
Fuses......................................... 398 Garage door opener ................ 339
Gas station information .......... 512
Gauges...................................... 143
Glove box ................................. 323
Hands-free system
(for cellular phone) ................ 272
Head restraints........................... 62
Headlights
Discharge headlights precautions ......................... 414
Replacing light bulbs ............. 407
Switch ................................... 150
Wattage................................. 471
Heaters Side mirror ............................ 217
Hood.......................................... 361
Hooks
Cargo .................................... 336
Hybrid system Emergency shut off system..... 27
Energy monitor /
consumption screen ............. 27
High-voltage components ....... 26
Power switch ......................... 130
Illuminated entry system......... 318
Immobilizer system ................... 81
I/M test ...................................... 356
Identification Engine ................................... 463
Vehicle .................................. 463
Ignition switch.......................... 130
Indicator lights ......................... 146
Initialization Items to initialize ................... 491
Inside rear view mirror .............. 71
Instrument panel light control .................................... 144
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