2021 TOYOTA PRIUS brake fluid

PRIUS_OM_OM47E09U_(U)
5296-3. Do-it-yourself maintenance
6
Maintenance and care
Remove the reservoir cap.
Add brake fluid slowly while checking the fluid level.
Make sure to check the fluid type and prepare the necessary item.
■ Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss o f braking effi-
ciency. Use only newly opened brake fluid.
3
4
Fluid type SAE J1703 or FMVSS No.116 DOT 3 brake fluid
SAE J1704 or FMVSS No.116 DOT 4 brake fluid
ItemsClean funnel
WARNING
■
When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damag e
painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, see a doctor.
NOTICE
■ If the brake fluid level is low or high
It is normal for the brake fluid level to go down slightly as t he brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serio us problem.

591
PRIUS_OM_OM47E09U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks un der the vehicle
(Water dripping from the air conditioning a fter use is normal.)
● Flat-looking tires or uneven tire wear
● High coolant temperature warni ng light flashes or comes on
● 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
● Engine missing, stumb ling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one s ide when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touch es
the floor
If you notice any of the followi ng symptoms, your vehicle proba -
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

592
PRIUS_OM_OM47E09U_(U)
7-2. Steps to take in an emergency
If a warning light turns on or a war ning
buzzer sounds
Calmly perform the following actions if any of the warning ligh ts
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and w arning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light and warning buzzer (red
indicator)
*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Brake system warning light (yellow indicator)
Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system
 Have the vehicle inspected by your Toyota dealer
immediately.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Low engine oil pressure warning light
(warning buzzer)
*2
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
 Have the vehicle inspected by your Toyota dealer
immediately.

PRIUS_OM_OM47E09U_(U)
6718-1. Specifications
8
Vehicle specifications
*: The fluid capacity is the quantity of reference.If replacement is necessary, contact your Toyota dealer.
*: The fluid capacity is the quantity of reference. If replacement is necessary, contact your Toyota dealer.
*1: Minimum pedal clearance when depressed with a force of 67.4 lb f (300 N,
30.6 kgf) while the hybrid system is operating.
*2: Parking brake pedal travel when depressed with a force of 67.4 lbf (300 N,
30.6 kgf).
Transmission
Fluid capacity*3.8 qt. (3.6 L, 3.2 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■ Transmission fluid type
Using transmission fluid other than the above type may cause ab normal
noise or vibration, or ultimately damage the transmission of yo ur vehicle.
Rear differential (rear electric motor) (AWD models)
Fluid capacity*1.3 qt. (1.2 L, 1.1 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than the above type may cause ab normal
noise or vibration, or ultimately damage the transmission of yo ur vehicle.
Brakes
Pedal clearance*14.69 in. (119 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 or
SAE J1704 or FMVSS No.116 DOT 4

726Alphabetical index
PRIUS_OM_OM47E09U_(U)
Bottle holders .......................... 464
BrakeFluid ...................................... 671
Parking brake........................ 262
Regenerative braking.............. 86
Warning light ......................... 592
Brake assist ............................. 420
Brake Override System ........... 229
Break-in tips ............................. 230
Brightness control Instrument cluster light
control................................. 100
BSM (Blind Spot Monitor) ....... 349 Blind Spot Monitor
function ............................... 354
Rear Cross Traffic Alert function ............................... 357
Care................................... 496, 502 Aluminum wheels.................. 497
Exterior ................................. 496
Front camera ........................ 291
Interior................................... 502
Radar sensor ........................ 290
Seat belts .............................. 503
Water-repellent coating......... 497
Cargo capacity ......................... 242
Cargo hooks............................. 468 Catch protection function....... 219
CD player
*
Chains ...................................... 431
Child restraint system............... 56
Fixed with a LATCH
system .......... ..................... ... 69
Fixed with a seat belt .............. 63
Front passenger occupant classification syst em ............ 49
Points to remember ................ 57
Riding with children ................ 55
Types of child restraint system installation method ............... 59
Using an anchor bracket......... 72
Child safety ................................ 55 12-volt battery precautions ... 526
Airbag precautions.................. 38
Back door precautions .......... 193
Child restraint system ............. 56
How your child should wear the seat belt.......................... 31
Installing child restraints ......... 59
Moon roof precautions .......... 226
Power window lock switch .... 218
Power window precautions ... 221
Rear door child-protectors .... 188
Removed key battery precautions......................... 562
Riding with children ................ 55
Seat belt extender precautions........................... 34
Seat belt precautions .............. 68
Seat heater precautions ....... 456
Child-protectors ...................... 188
C

729Alphabetical index
PRIUS_OM_OM47E09U_(U)
Engine....................................... 666Accessory mode ................... 247
Compartment ........................ 518
Engine switch (power switch) ................................ 245
Exhaust gas precautions ........ 54
Hood ..................................... 515
How to start the hybrid system ......... ....................... 245
Identification number ............ 666
If the hybrid system will not start .............................. 645
If your vehicle has to be stopped in an emergency ... 581
Ignition switch (power switch) ................................ 245
Overheating .......................... 656
Power switch......................... 245
Engine coolant ......................... 522 Capacity ................................ 670
Checking ............................... 522
Preparing and checking before winter....................... 430
Engine oil ................................. 519 Capacity ................................ 668
Checking ............................... 519
Oil pressure warning light ..... 592
Preparing and checking before winter....................... 430
Engine switch (power
switch) .................................... 245 Auto power off function ......... 247
Automatic hybrid system shut off feature ........................... 249
Changing the power switch modes................................. 247
If your vehicle has to be stopped in an emergency ... 581
Starting the hybrid system .... 245 EPS (Electronic Power
Steering) ................................ 421
Function ................................ 421
Warning light......................... 593
EV drive mode ......................... 252
EV indicator ............................. 129
Event data recorder (EDR)........ 11
Exhaust gas precautions .......... 54
Flat tire ............................. 611, 631
Floor mat .................................... 26
Fluid Brake .................................... 671
Transmission ........................ 671
Washer ................................. 530
Fog lights ................................. 273
Replacing light bulbs ............ 577
Switch ................................... 273
Footwell lights ......................... 458
Front camera............................ 289
Front doors .............................. 185
Front fog lights ........................ 273
Replacing light bulbs ............ 577
Switch ................................... 273
Front passenger occupant classification system .............. 49
Front passenger’s seat belt reminder light ........................ 595
Front seat concentrated
airflow mode
(S-FLOW) ....................... 438, 448
Front seats ............................... 204
Adjustment............................ 204
Cleaning ............................... 502
Correct driving posture ........... 28
Head restraints ..................... 209
Seat heaters ......................... 456
Front side marker lights ......... 263
Light switch ........................... 263
Replacing light bulbs ............ 571
Wattage ................................ 674
F