2010 TOYOTA PRIUS brake

542 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Changing “POWER” switch modes and starting the hybrid sys-
temApply the brakes and touch the
Toyota emblem side of the
electronic key to the “POWER”
switch.
An alarm will sound to indicate
that the start function cannot
detect the electronic key that is
touched to the “POWER” switch if
any of the doors is opened and
closed while the key is touched to
the switch.
To change “POWER” switch modes: Within 10 seconds of the
buzzer sounding, release the brake pedal and press the
“POWER” switch. Modes can be changed each time the
switch is pressed. ( P. 164) 
To start the hybrid system: Press the “POWER” switch within
10 seconds after the buzzer s ounds, keeping the brake pedal
depressed.
In the event that the “POWER” swit ch still cannot be operated, con-
tact your Toyota dealer.
ITO52P165
STEP1
■ Stopping the hybrid system
Push the “P” position switch and press the “POWER” switch as you normally
do when stopping the hybrid system.
■ Replacing the key battery
As this procedure is the temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery depletes.
(P. 460)
STEP2

5
When trouble arises
553
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
If the vehicle becomes stuck
CAUTION
■When attempting to free a stuck vehicle
If you choose to rock the vehicle back and forth to free it, make sure the sur-
rounding area is clear, to avoid striking other vehicles, objects or persons.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.
■ When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed. 
This may lead to unexpected rapid acceleration of the vehicle that may
cause an accident and result in death or serious injury.
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt, or snow.
Stop the hybrid system. Set t he parking brake and push the
“P” position switch.
Remove the mud, snow, or sand from around the stuck tire.
Place wood, stones or some other material to help provide
traction under the tires.
Restart the hybrid system.
Shift the shift lever to “D” or “R” and carefully apply the
accelerator to free the vehicle.STEP1
STEP2
STEP3
STEP4
STEP5

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

579
6-1. Specifications
6
Vehicle specifications
PRIUS_U (OM47668U) U.S.A.
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

580 6-1. Specifications
PRIUS_U (OM47668U) U.S.A.
Tire related termMeaning
Normal occupant
weight 150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that
follows
Occupant distribution Distribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below
Production options
weight The combined weight of installed regular pro-
duction options weighing over 5 lb. (2.3 kg) in
excess of the standard items which they
replace, not previously considered in curb
weight or accessory weight, including heavy
duty brakes, ride levelers, roof rack, heavy duty
battery, and special trim
Rim A metal support for a tire or a tire and tube
assembly upon which the tire beads are seated
Rim diameter 
(Wheel diameter) Nominal diameter of the bead seat
Rim size designation Rim diameter and width
Rim type designation The industry manufacturer’s designation for a
rim by style or code
Rim width Nominal distance between rim flanges
Vehicle capacity
weight (Total load
capacity) The rated cargo and luggage load plus 150 lb.
(68 kg) times the vehicle’s designated seating
capacity

600
PRIUS_U (OM47668U) U.S.A.
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
A/C Air Conditioning
ABS Anti-lock Brake System
ALR Automatic Locking Retractor
APGS Advanced Parking Guidance System
CRS Child Restraint System
ECU Electronic Control Unit
EDR Event Data Recorder
ELR Emergency Locking Retractor
EPS Electronic Power Steering
EV Electric Vehicle
GAWR Gross Axle Weight Ratings
I/M Emission inspection and maintenance
LATCH Lower Anchors and Tethers for Children
LED Light Emitting Diode
MMT Methylcy clopentadienyl Manganese Tricarbonyl
M + S Mud and Snow
MTBE Methyl Tertiary Butyl Ether
OBD On Board Diagnostics
PCS Pre-Collision System
SRS Supplemental Restraint System
TIN Tire Identification Number
TPMS Tire Pressure Monitoring (Warning) System
TRAC Traction Control
VIN Vehicle Identification Number
VSC Vehicle Stability Control

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
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