2010 TOYOTA PRIUS brake fluid

434 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.
Washer fluidOpen the lid.
Check the washer fluid level on
the level gauge.“NORMAL”
“LOW”
NOTICE
■If the fluid level is low
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high. 
If the reservoir needs frequent refilling, it may indicate a serious pro\
blem.
STEP1
ITO43P176
STEP2

5
When trouble arises
493
5-1. Essential information
PRIUS_U (OM47668U) U.S.A.
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
■ Visible symptoms
●Fluid leaks under the vehicle 
(Water dripping from the air cond itioning after use is normal.)
● Flat-looking tires or uneven tire wear
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
■ Operational symptoms
●Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, s pongy feeling, pedal almost
touches the floor

496
PRIUS_U (OM47668U) U.S.A.
5-2. Steps to take in an emergency
If a war ning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*: Parking brake engaged warning buzzer: 
A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph
(5 km/h) or more.
Warning lightWarning light/Details

(U.S.A.)

(Canada)
Brake system warning light and warning buzzer* (red
indicator)
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released, the system is operating normally.
Calmly perform the following actions if any of the warning lights turn
on or flash. If a light turns on or flashes, but then turns off, this does
not necessarily indicate a malfunction in the system.

564 6-1. Specifications
PRIUS_U (OM47668U) U.S.A.
Brakes
*1:Minimum pedal clearance when depressed with a force of 44.1 lbf (196 N,
20.0 kgf) while the hybrid system is operating.
*2:Parking brake pedal travel when depressed with a force of 67.5 lbf (300 N, 30.6 kgf).
Pedal clearance *13.07 in. (78 mm) Min.
Pedal free play0.04  0.24 in. (1.0  6.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake pedal 
travel
*28  11 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3

601
PRIUS_U (OM47668U) U.S.A.
Alphabetical index
Alphabetical index
A/C ............................................ 270
ABS........................................... 245
Active head restraint................. 78
Air conditioning filter .............. 457
Air conditioning systemAir conditioning filter ............. 457
Automatic air conditioning 
system................................ 270
Remote Air Conditioning 
System ............................... 285
Steering wheel climate 
remote control switches ..... 280
Airbags Airbag operating conditions .. 117
Airbag precautions for your 
child.................................... 121
Airbag warning light .............. 497
Curtain shield airbag 
precautions ........................ 121
Front passenger occupant 
classification system .......... 126
General airbag precautions .. 121
Locations of airbags ............. 113
Modification and disposal of 
airbags ............................... 125
Side airbag precautions........ 121
Side and curtain shield airbags 
operating conditions ........... 117
SRS airbags ......................... 113
Antenna .................................... 298
Anti-lock brake system ........... 245
Armrest .................................... 383
Audio input .............................. 322
Audio system
Antenna ................................ 298
Audio input ........................... 322
AUX adapter ......................... 322
CD player/changer ............... 303
MP3/WMA disc ..................... 311
Optimal use .......................... 319
Portable music player ........... 322
Radio .................................... 294
Steering switches ................. 323 Automatic headlight leveling

system ....................................206
Automatic light control 
system ....................................206
AUX adapter .............................322
Auxiliary boxes ........................375
Back door
Back door ................................72
Smart key system... .................43
Wireless remote control ..........63
Back-up lights Replacing light bulbs .............472
Wattage .................................567
Battery Checking ...............................436
Hybrid battery 
(traction battery)....................32
If the vehicle 12 volt battery is 
discharged ..........................543
Preparing and checking 
before winter .......................261
Bluetooth
®................................326
Bottle holder .............................374
Brake Fluid ......................................432
Parking brake ........................179
Brake assist ..............................245
Break-in tips .............................151
Brightness control Instrument light control ..........184
A
B

603
Alphabetical index
PRIUS_U (OM47668U) U.S.A.
Driver’s seat belt reminder

light ........................................ 499
Driving
Break-in tips ......................... 151
Correct posture..................... 111
Procedures ........................... 150
Winter driving tips ................. 261
Electric Power Steering .......... 245
Electronic key Replacing battery ................. 460
When the electronic key 
battery is discharged .......... 541
Emergency flashers ............... 486
Emergency, in case of
If a warning buzzer 
sounds ............................... 496
If a warning light turns on ..... 496
If a warning message 
is displayed ........................ 508
If the electronic key does not 
operate properly ................. 541
If the hybrid system will not 
start .................................... 538
If the 12 volt battery is 
discharged ........................ 543
If you have a flat tire ............ 524
If you lose your keys............. 540
If you think something is 
wrong ................................. 493
If your vehicle becomes 
stuck................................... 553
If your vehicle needs to be 
towed ................................. 487
If your vehicle overheats ...... 548 Engine
Compartment ........................425
Hood......................................420
How to start the hybrid 
system ................................162
If the hybrid system will 
not start ...............................538
Ignition switch........................162
Overheating...........................548
“POWER” switch ...................162
Engine oil Capacity ................................560
Checking ...............................426
Preparing and checking 
before winter .......................261
Engine/power control unit coolant Capacity ................................562
Checking ...............................430
Preparing and checking 
before winter .......................261
Engine oil maintenance 
data .........................................428
Enhanced VSC (Vehicle 
Stability Control)....................245
EPS ............................................245
Event data recorder .................494
Floor mats.................................384
Fluid Brake .....................................432
Washer ..................................434
Fog lights Replacing light bulbs .............472
Switch....................................209
Wattage .................................567
Front passenger occupant 
classification system ............126
Front passenger’s seat belt 
reminder light.........................499
Front seats Adjustment ..............................78
E
F