
610
PRIUS_OM_OM47B54U_(U)
7-3. Do-it-yourself maintenance
■Situations in which the tire pressure warning system may not oper-
ate properly
●In the following cases, the tire pressure warning system may not operate
properly.
• If non-genuine Toyota wheels are used.
• When a replacement tire is used , the system may not operate cor-
rectly due to the structure of the replacement tire.
• A tire has been replaced with a tire  that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run- flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If wheel without the tire pressure warning valve and transmitter is
used.
• If the ID code on the tire pressure warning valves and transmitters is not registered in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, largedisplay, airport or other facility that generates strong radio waves or
electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless communication device
●When the vehicle is parked, the time taken for the warning to start or go
off could be extended.
●When tire inflation pressure declines rapidly for example when a tire has
burst, the warning may not function.
■The initialization operation
●Make sure to carry out in itialization after adjusting  the tire inflation pres-
sure.
Also, make sure the tires are cold be fore carrying out initialization or tire
inflation pressure adjustment.
●If you have accidentally turned the po wer switch off during initialization,
it is not necessary to  press the reset switch again as initialization will
restart automatically when the powe r switch has been turned to ON
mode for the next time.
●If you accidentally press the reset s witch when initialization is not neces-
sary, adjust the tire inflation pressu re to the specified level when the
tires are cold, and conduct initialization again. 

742
PRIUS_OM_OM47B54U_(U)
9-1. Specifications
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 
pressureThe maximum cold inflated pressure to which
a tire may be inflated, shown on the sidewall
of the tire
Recommended 
inflation pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of auto-
matic transmission, 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 
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
*
that follows
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below 

PRIUS_OM_OM47B54U_(U)
769
10
For owners
AVERTISSEMENT
■Précautions relatives aux coussins gonflables SRS
● Si vous avez de la difficulté à respirer après le déploiement des coussins
gonflables SRS, ouvrez une portière ou une glace latérale pour laisser
entrer l’air frais, ou quittez le véhicule si vous pouvez le faire en toute
sécurité. Dès que possible, nettoyez tous les résidus afin d’éviter les irrita-
tions cutanées. 
● Si les emplacements de stockage des coussins gonflables SRS, tels que
le tampon de volant et les garnitures des montants avant et arrière, sont
endommagés ou fissurés, faites-les remplacer par votre concessionnaire
Toyota.
● Ne placez aucun objet, par exemple un coussin, sur le siège du passager
avant. Cela disperserait le poids du passager, ce qui empêcherait le cap-
teur de le détecter correctement. Cela pourrait empêcher le déploiement
des coussins gonflables SRS du passager avant en cas de collision.
■ Modification et mise au rebut des  composants du système de coussins
gonflables SRS
Ne mettez pas votre véhicule au rebut et n’effectuez aucune des modifica-
tions suivantes sans d’abord consulter votre concessionnaire Toyota. Les
coussins gonflables SRS pourraient fonctionner de manière incorrecte ou
se déployer (gonfler) accidentellement, ce qui serait susceptible d’occasion-
ner des blessures graves, voire mortelles.
● Installation, retrait, démontage et réparation des coussins gonflables SRS
● Réparations, modifications, retrait ou remplacement du volant, du tableau
de bord, de la planche de bord, des sièges ou du capitonnage des sièges,
des montants avant, latéraux et arrière, des brancards de pavillon, des
panneaux des portières avant, de la garniture des portières avant ou des
haut-parleurs des portières avant
● Modifications du panneau de la portière avant (comme le perforer)
● Réparations ou modifications de l’aile avant, du pare-chocs avant ou du
côté de l’habitacle
● Installation d’une protection de calandre (barre safari, barre kangourou,
etc.), de lames de déneigement, de treuils ou d’un porte-bagages de toit
● Modifications du système de suspension du véhicule
● Installation d’appareils électroniques tels qu’un émetteur-récepteur radio
ou un lecteur de CD
● Modifications à votre véhicule pour une personne aux capacités physiques
réduites 

774What to do if... (Troubleshooting)
PRIUS_OM_OM47B54U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by your Toyota dealer. ( →P. 161)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact your Toyota dealer immediately. ( →P. 164)
●Is the electronic key battery weak or depleted? (→P. 627)
●Is the power switch in ON mode? 
When locking the doors, turn the power switch off. ( →P. 227)
●Is the electronic key left inside the vehicle? 
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. (→P. 178)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (→P. 168)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked,  unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened 

779Alphabetical index
PRIUS_OM_OM47B54U_(U)
AntennaRadio .................................... 437
Smart key system ................. 176
Anti-lock brake system  (ABS) ...................................... 402
Function ................................ 402
Warning light ......................... 654
Approach warning ................... 307
Armrest ..................................... 550
Assist grips .............................. 551
Audio input............................... 423
Audio system 
(Entune Audio) ...................... 419 Antenna ................................ 437
Audio input ............................ 423
AUX port ............................... 454
Basic operations ................... 424
Bluetooth
® audio................... 466
CD player .............................. 438
iPod....................................... 444
MP3/WMA disc ..................... 438
Optimal use........................... 435
Portable music player ........... 423
Radio .................................... 436
Steering wheel audio  switches.............................. 422
USB memory ........................ 449
Audio system (Entune Premium  Audio with Navigation)
*
Automatic air conditioning system Air conditioning filter ............. 620
Automatic air conditioning system ......... ....................... 510
Climate control ...................... 514
Eco score (A/C score)........... 136
Fresh air intake system......... 514
Humidity sensor .................... 517
Settings screen ..................... 513
S-FLOW mode ...................... 512 Automatic door locking 
and unlocking systems ........ 168
Automatic High Beam ............. 247
Automatic light control  system.................................... 245
AUX port ................................... 423
Auxiliary boxes ........................ 530
Back door ................................. 171
Back-up lights Replacing light bulbs ............ 638
Wattage ................................ 732
Battery (12-volt battery)
Battery checking ................... 597
If the 12-volt battery is discharged.......................... 708
Preparing and checking  before winter ...................... 412
Warning light......................... 653
Battery (traction battery) .......... 82
Blind Spot Monitor (BSM) ....... 320
Bluetooth
®............................... 497
Audio system .................. ...... 466
Hands-free system  (for cellular phone) ............. 468
Registering/removing 
a Bluetooth
® device ........... 460
Selecting a Bluetooth® 
device ................................. 462
Wireless communication....... 455
B
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”. 

789Alphabetical index
PRIUS_OM_OM47B54U_(U)
Power switch............................ 225Auto power off function ......... 227
Changing the power 
switch modes...................... 227
If your vehicle has to be 
stopped in an 
emergency.......................... 645
Starting the hybrid system .... 225
Power windows Catch protection function ...... 199
Door lock linked window operation ............................ 200
Jam protection function......... 199
Operation .............................. 198
Window lock switch............... 198
Pre-Collision System (PCS) Enabling/disabling the 
system ......... ....................... 279
Function ................................ 275
Warning light ......................... 654
Radar cruise control  (dynamic radar cruise 
control with full-speed 
range) ..................................... 298
Radiator .................................... 596
Radio......................................... 436
Rear passengers’ seat belt  reminder light ........................ 656
Rear seat .................................. 186
Rear side marker lights Light switch ........................... 242 Rear turn signal lights
Replacing light bulbs ............ 638
Turn signal lever ................... 240
Wattage ................................ 732
Rear view mirror
Inside rear view mirror .......... 194
Outside rear view mirrors ..... 196
Rear view monitor system ...... 392
Rear window defogger ............ 515
Rear window wiper .................. 260
Refueling .................................. 262
Capacity................................ 725
Fuel types ............................. 725
Opening the fuel tank cap..... 264
When the fuel filler door cannot be opened .............. 265
Regenerative braking ................ 80
Replacing
Electronic key battery ........... 627
Fuses .................................... 630
Light bulbs ............................ 635
Tires.............................. 670, 684
Resetting the message 
indicating maintenance is 
required.................................. 578
Reporting safety defects  for U.S. owners...................... 758
Road accident cautions ............ 86
R
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.