Page 539 of 596
5399-1. Specifications
9
Vehicle specifications
PRIUS c_U
Ignition system
Spark plug
Make
GapDENSO FK16R-A8
0.03 in. (0.8 mm)
NOTICE
■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark pl ug gap.
Electrical system
12-volt battery
Open voltage at
68 F (20 C): 12.0 V or higher
If the voltage is lower than the standard value,
charge the battery.
(Voltage checked 20 minutes after the hybrid sys-
tem and all the lights are turned off)
Charging rates
Quick charge
Slow charge 15 A max.
5 A max.
Page 542 of 596
5429-1. Specifications
PRIUS c_U
*1: If equipped
*2: Side turn signal lights should be replaced as an assembly.
Light bulbs
Light bulbsBulb No.WTy p e
ExteriorFront turn signal lights/
parking lights
28/8 B
License plate lights 5A
Back-up lights 16 A
Side turn signal lights 5B
*2
Rear turn signal lights 21 B
InteriorInterior lights/personal
lights
5A
Luggage compartment
light
*1 5A
A: Wedge base bulbs (clear) B: Wedge base bulbs (amber)
Page 544 of 596

5449-1. Specifications
PRIUS c_U■
Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octa ne rating no
lower than 87.
● Toyota does not recommend the use of gasoline containing methan ol.
■ Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel
containing MMT is used, your emission control system may be adversely
affected.
The malfunction indicator lamp on the instrument cluster may come on. If this
happens, contact your Toyota dealer for service.
■ If your engine knocks
●Consult your Toyota dealer.
● You may occasionally notice light knocking for a short time whi le accelerat-
ing or driving uphill. This is normal and there is no need for concern.
●
Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from any pump labeled
E30, E50, E85 (which are only some
examples of fuel containing more than
15% ethanol).
DO NOT use gasoline contain-
ing more than 15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)
Page 555 of 596

5559-1. Specifications
9
Vehicle specifications
PRIUS c_U
Cord separationThe parting of cords from adjacent rubber
compounds
Cracking Any parting within the tread, sidewall, or inner-
liner of the tire extending to cord material
CT A pneumatic tire with an inverted flange tire
and rim system in which the rim is designed
with rim flanges pointed radially inward and
the tire is designed to fit on the underside of
the rim in a manner that encloses the rim
flanges inside the air cavity of the tire
Extra load tire A tire designed to operate at higher loads and
at higher inflation pressures than the corre-
sponding standard tire
Groove The space between two adjacent tread ribs
Innerliner The layer(s) forming the inside surface of a
tubeless tire that contains the inflating medium
within the tire
Innerliner separation The parting of the inner
liner from cord material
in the carcass
Intended outboard
sidewall (a) The sidewall that contains a whitewall,
bears white lettering, or bears manufac-
turer, brand, and/or model name molding
that is higher or deeper than the same
molding on the other sidewall of the tire,
or
(b) The outward facing sidewall of an asym- metrical tire that has a particular side that
must always face outward when mounted
on a vehicle
Light truck (LT) tire A tire designated by its manufacturer as pri-
marily intended for use on lightweight trucks or
multipurpose pa
ssenger vehicles
Load rating The maximum load that a tire is rated to carry
for a given inflation pressure
Maximum load rating The load rating for a tire at the maximum per-
missible inflation pressure for that tire
Maximum permissible
inflation pressure The maximum cold inflation pressure to which
a tire may be inflated
Tire related termMeaning
Page 561 of 596
5619-2. Customization
9
Vehicle specifications
PRIUS c_U■
Door lock (P. 125, 134, 517)
*: Vehicles with a smart key system
■
Automatic light control system ( P. 208)
■Lights (P. 206)
FunctionDefault settingCustomized
setting
Unlocking using a key Driver's door
unlocked in one step, all doors
unlocked in two steps All doors unlocked
in one step. —O
Speed-detecting auto-
matic door lock function
*Off On O O
Opening driver's door
unlocks all doors Off
On O O
Shifting gears to P unlocks
all doors. On
Off O O
Shifting gears to position
other than P locks all
doors. On
Off O O
12
FunctionDefault settingCustomized set-
ting
Time elapsed before
headlights automatically
turn off after doors are
closed
30 seconds
Off
OO60 seconds
90 seconds
12
FunctionDefault settingCustomized setting
Daytime running light sys-
tem (except Canada) On Off O O
12
Page 562 of 596
5629-2. Customization
PRIUS c_U■
Illumination (P. 383)
*1: Vehicles without a smart key system
*2: Vehicles with a smart key system
■
Seat belt reminder (P. 479)
■Automatic air c onditioning system (P. 3 7 4 )
FunctionDefault settingCustomized
setting
Time elapsed before lights
turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation when the doors
are unlockedOnOff—O
Operation after the power
switch is turned to the
“LOCK” position
*1OnOff—O
Operation after the power
switch is turned off
*2OnOff—O
Operation when you
approach the vehicle with
the electronic key on your
person
*2
OnOff—O
12
FunctionDefault settingCustomized setting
Vehicle speed linked seat
belt reminder buzzer On Off — O
12
FunctionDefault settingCustomized
setting
A/C auto switch operationOnOffOO
12
Page 583 of 596

583What to do if... (Troubleshooting)
PRIUS c_U
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not running) for a period of time.
( P. 192)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (P. 479)
●The parking brake warning light is on
Is the parking brake released? ( P. 205)
Depending on the situation, other types of warning buzzer may a lso sound.
( P. 477, 485)
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display. ( P. 485)
●When a warning light turns on or a warning message or indicator is dis-
played, refer to P. 477, 485.
The power switch is turned off automatically
(vehicles with a smart key system)
A warning buzzer sounds during driving
A warning buzzer sounds w hen leaving the vehicle
(vehicles with a smart key system)
A warning light turns on or a warning message or indicator
is displayed
Page 585 of 596

585
PRIUS c_U
Alphabetical index
Alphabetical index
A/C ............................................ 374
ABS ........................................... 263
Air conditioning filter .............. 447
Air conditioning systemAir conditioning filter ............. 447
Automatic air conditioning
system ......... ....................... 374
Airbags
Airbag operating conditions ............................. 47
Airbag preca utions for
your child .............................. 42
Airbag warning light .............. 478
Curtain shield airbag operating conditions ............. 47
Curtain shield airbag precautions ........................... 45
Front passenger occupant classification syst em............. 52
General airbag
precautions ........................... 42
Indicators ................................ 52
Knee airbag precautions ......... 42
Locations of airbags................ 39
Modification and disposal of airbags ............... 46
Proper driving
posture ........................... 28, 42
Seat cushion airbag precautions ........................... 42
Side airbag operating conditions ............................. 47
Side airbag precautions .......... 42
SRS airbags............................ 39 Antenna .................................... 297
Anti-lock brake system ........... 263
Assist grips .............................. 394
Audio input .............................. 282
Audio system
*
Antenna ................................ 364
Audio input............................ 282
AUX port ............................... 282
CD player.............................. 298
Cord hook ............................. 282
iPod ...................................... 304
MP3/WMA disc ..................... 298
Optimal use .......................... 295
Portable music
player ................................. 282
Radio .................................... 296
Steering wheel audio switch ................................. 281
Type...................................... 278
USB memory ........................ 309
USB port ............................... 282
Automatic air conditioning system
Air conditioning filter ............. 447
Automatic air conditioning system .......... ...................... 374
Automatic High Beam ............. 244
AUX port ................................... 282
Auxiliary boxes ........................ 388
A
*: For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM OWNER'S MANUAL”.