inflation pressure TOYOTA PRIUS 2010 3.G Owners Manual

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PRIUS_U (OM47668U) U.S.A.
4-1. Maintenance and careCleaning and protecting 
the vehicle’s exterior ......... 404
Cleaning and protecting 
the vehicle’s interior .......... 407
4-2. Maintenance Maintenance 
requirements ..................... 410
General maintenance.......... 412
Emission inspection 
and maintenance (I/M) 
programs........................... 415
4-3. Do-it-yourself maintenance Do-it-yourself service 
precautions ....................... 416
Hood ................................... 420
Positioning a floor jack ........ 423
Engine compartment ........... 425
12 volt battery ..................... 436
Tires .................................... 441
Tire inflation pressure ......... 451
Wheels ................................ 455
Air conditioning filter............ 457
Electronic key battery.......... 460
Checking and replacing 
fuses ................................. 462
Light bulbs........................... 472 5-1. Essential information
Emergency flashers............ 486
If your vehicle needs 
to be towed....................... 487
If you think something is  wrong ............................... 493
Event data recorder ............ 494
5-2. Steps to take in an emergency If a warning light turns 
on or a warning buzzer 
sounds.............................. 496
If a warning message is 
displayed .......................... 508
If you have a flat tire ........... 524
If the hybrid system 
will not start ...................... 538
If you lose your keys........... 540
If the electronic key does 
not operate properly ......... 541
If the 12 volt battery is 
discharged........................ 543
If your vehicle overheats .... 548
If the vehicle becomes 
stuck ................................. 553
4Maintenance and care5When trouble arises

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PRIUS_U (OM47668U) U.S.A.
Rear window wiper P. 212Fuel filler door P. 104
Side doors P. 67Rear window defogger P. 289
Back door P. 72
License plate lights P. 206
Tail and rear side marker lights
P. 206
Rear turn signal lights P. 178
Tires
●Rotation
● Replacement
● Inflation pressure
● Information
P. 441
P. 524
P. 451
P. 572
: If equipped

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2-4. Using other
driving systems
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When driving
PRIUS_U (OM47668U) U.S.A.
CAUTION
■Situations unsuitable for the LKA system
Using the LKA system in any of the following situations may result in
improper operation of the system and could lead to an accident, causing
death or serious injury. Turn the LKA system off while driving in any of the
following situations.
● When it is difficult to see lane markings because they are dirty or not clear
● When it is difficult to see lane markings due to rain, snow, fog or glare
● When the headlights are not bright enough due to dirt on the lenses or if
the headlight aim is not adjusted appropriately
● When a lane marking is not present, such as before tollbooths on a free-
way
● When sudden changes in the light level occur repetitively
● When there are misleading lines such as shadows, lines of snow, wheel
ruts with rain collected in them, or lines that remain after road repairs
● When driving in lanes other than the driving lane or passing lane on free-
way or motor highways
● When there is a lane closure due to road repairs or when driving in a
makeshift lane
● When the lanes are narrow or wide
● When the distance from the vehicle ahead of you is short
● When the vehicle leans to one side an unusual amount due to a heavy
load or improper tire inflation pressure
● When driving on winding roads or on uneven roads
● When driving on slippery roads, such as those covered with rain, ice or \
snow
● The tires have been exchanged (including snow tires), or the suspension
has been modified

264 2-5. Driving information
PRIUS_U (OM47668U) U.S.A.
Regulations on the use of tire chains● Regulations regarding the use of tire chains vary according to loca-
tion and type of road. Always check local regu lations before install-
ing chains.
● Retighten the chains after driving 1/4 - 1/2 mile (0.5 - 1.0 km).
■Tire chains
Observe the following precautions when installing and removing chains.
● Install and remove tire chains in a safe location.
● Install tire chains on the front tires.
● Install tire chains following the instructions provided in the accompanying
manual.
CAUTION
■Driving with snow tires
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.
● Use tires of the size specified for your vehicle.
● Maintain the specified level of tire inflation pressure.
● Do not drive in excess of 75 mph (120 km/h), regardless of the type of
snow tires being used.
● Snow tires should be installed on all wheels.

Maintenance and care4
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PRIUS_U (OM47668U) U.S.A.
4-1. Maintenance and careCleaning and protecting 
the vehicle’s exterior ...... 404
Cleaning and protecting 
the vehicle’s interior ....... 407
4-2. Maintenance Maintenance 
requirements .................. 410
General maintenance....... 412
Emission inspection and 
maintenance (I/M) 
programs ........................ 415
4-3. Do-it-yourself maintenance Do-it-yourself service 
precautions .................... 416
Hood ................................ 420
Positioning a floor jack ..... 423
Engine compartment ........ 425
12 volt battery .................. 436
Tires ................................. 441
Tire inflation pressure ...... 451
Wheels ............................. 455
Air conditioning filter......... 457
Electronic key battery....... 460
Checking and replacing 
fuses .............................. 462
Light bulbs........................ 472

414 4-2. Maintenance
PRIUS_U (OM47668U) U.S.A.
Vehicle exterior
ItemsCheck points
Doors • Operate smoothly?
Hood • The lock system works properly?
Fluid leaks • Is there any leakage after parking?
Tire• Inflation pressure is correct?
• Tire surfaces not worn or damaged?
• Tires rotated according to the mainte-
nance schedule?
• Wheel nuts are not loose?
CAUTION
■ If the hybrid system is operating
Turn off the hybrid system and ensure that there is adequate ventilation
before performing maintenance checks.

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4-3. Do-it-yourself maintenance
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Maintenance and care
PRIUS_U (OM47668U) U.S.A.
ItemsParts and tools
Brake fluid level (
P. 432)
• FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine oil level ( P. 426)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 462)• Fuse with same amperage rating
as original
Radiator and condenser (P. 432)
Tire inflation pressure ( P. 451)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 434)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding washer fluid)

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4-3. Do-it-yourself maintenance
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Maintenance and care
PRIUS_U (OM47668U) U.S.A.
Tires
Replace or rotate tires in accordance with maintenance sched-
ules and treadwear.
■Checking tires
New tread
Treadwear indicator
Worn tread
The location of treadwear
indicators is shown by the
“TWI” or “” marks, etc.,
molded on the sidewall of
each tire.
Check spare tire condition
and inflation pressure if not
rotated.
■ Tire rotation
Rotate the tires in the order
shown.
To equalize tire wear and
extend tire life, Toyota recom-
mends that tire rotation is
carried out at the same inter-
val as tire inspection.
Do not fail to initialize the tire
pressure warning system
after tire rotation.
ITO43P115
Front

442 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.
Installing tire pressure warning valves and transmittersWhen replacing tires or wheels, ti re pressure warning valves and
transmitters must also be installed.
When new tire pressure warning valves and transmitters are
installed, new tire pressure warn ing valve and transmitter ID codes
must be registered in the tire pres sure warning computer and tire
pressure warning system must be initialized. Have tire pressure
warning valve and transmitter ID codes registered by Toyota dealer. 
(  P. 444)
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the fol-
lowing circumstances
●When rotating the tires on vehicles differing with front and rear
tire inflation pressures.
● When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
● When changing the tire size.
When the tire pressure warning system is initialized, the current
tire inflation pressure is set as the pressure benchmark.
■ The tire pressure warning system
Your Toyota is equipped with a tire pressure warning system that
uses tire pressure warning valves and transmitters to detect low
tire inflation pressure before serious problems arise. (P. 499)
The compact spare tire is not equipped with a tire pressure
warning valve and transmitter.

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4-3. Do-it-yourself maintenance
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Maintenance and care
PRIUS_U (OM47668U) U.S.A.
■
How to initialize the tire pressure warning system
Park the vehicle in safe plac e and turn the “POWER” switch
OFF.
While the vehicle is moving, in itialization is not performed.
Adjust the tire inflation pressure to the specified cold tire infla-
tion pressure level. ( P. 565)
Make sure to adjust the tire pressure to the specified cold tire
inflation pressure level. The ti re pressure warning system will
operate based on this pressure level.
Turn the “POWER” switch to ON mode.
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times.
Wait for a few minutes with the ON mode, and then turn
“POWER” switch OFF.
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