Page 514 of 596

5148-2. Steps to take in an emergency
PRIUS c_U (OM52J11U)
One of the following may be the cause of the problem:
●Vehicles with a smart key system: The electronic key may not be
functioning properly. ( →P. 516)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( →P. 217)
● Vehicles with immobilizer syst em: There may be a malfunction in
the immobilizer system. ( →P. 8 4 )
● There may be a malfunction in the steering lock system.
● Vehicles with a smart key system : The hybrid system may be mal-
functioning due to an electrical problem such as an open circuit or a
blown fuse. However, depending on the type of malfunction, an
interim measure is available to start the hybrid system. (→P. 515)
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( →P. 518)
● The 12-volt battery terminal connections may be loose or corroded.
(→ P. 428)
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on
the situation. Check the follo wing and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( →P. 184, 188)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
Page 515 of 596

5158-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52J11U)
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( →P. 518)
● One or both of the 12-volt batter y terminals may be disconnected.
( → P. 428)
Contact your Toyota dealer if the problem cannot be repaired, or if repair
procedures are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to start the hybrid system if the “POWER”
switch is functioning normally.
Do not use this starting procedure except in case of emergency.
Set the parking brake.
Shift the shift lever to P.
Turn the “POWER” switch to ACCESSORY mode.
Press and hold the “POWER” switch for about 15 seconds.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
The interior lights and headlight s do not turn on, or the horn
does not sound.
Emergency start function (vehicles with a smart key system)
1
2
3
4
Page 521 of 596

5218-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52J11U)
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
■ Precautions when the 12-volt battery is discharged (vehicles with a
smart key system)
●In some cases, it may not be possible to unlock the doors using the smart
key system immediately after the 12-volt battery has been disconnected and
reconnected. Use the wireless remote control or the mechanical key to lock
or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● The “POWER” switch mode is memorized by the vehicle. When the 12-volt
battery is reconnected, the system will return to the mode it was in before
the 12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the “POWER” switch off.
If the “POWER” switch was in ACCESSORY or ON mode before the 12-volt
battery was discharged, the audio system and/or air conditioning system
may operate when the 12-volt battery is reconnected.
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects of
certain electrical appliances. If the vehicle is left for a long time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)
Page 537 of 596
5379-1. Specifications
9
Vehicle specifications
PRIUS c_U (OM52J11U)
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 plug gap.
Electrical system
12-volt battery
Open voltage at
68° F (20 °C): 12.5 V or over Fully charged
11 . 0
⎯ 12.5 V Half charged
Under 11.0 V Discharged
(Voltage checked 20 minutes after the hybrid sys-
tem and all the lights are turned off)
Charging rates 3.5 A or less
(Recharge within 10 hours)
Page 540 of 596
5409-1. Specifications
PRIUS c_U (OM52J11U)
*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/parking
lights
⎯
28/8 B
License plate lights ⎯5A
Back-up lights ⎯16 A
Side turn signal lights ⎯5B
*2
Front side marker lights ⎯5A
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 559 of 596
5599-2. Customization
9
Vehicle specifications
PRIUS c_U (OM52J11U)■
Door lock (→P. 126, 135, 516)
*: Vehicles with a smart key system
■
Automatic light control system ( →P. 206)
■Lights (→P. 204)
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 560 of 596
5609-2. Customization
PRIUS c_U (OM52J11U)■
Illumination (→P. 383)
*1: Vehicles without a smart key system
*2: Vehicles with a smart key system
■
Seat belt reminder (→P. 479)
■Automatic air condi tioning system (→P. 374)
FunctionDefault settingCustomized
setting
Time elapsed before lights
turn off15 seconds
7.5 secondsOO
30 secondsOO
Operation when the doors
are unlockedOnOff—O
Operation after the engine
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
Interior light controlOnOff—O
12
FunctionDefault settingCustomized setting
Vehicle speed linked seat
belt reminder buzzer On Off — O
12
FunctionDefault settingCustomized
setting
A/C auto switch operationOnOffOO
Air conditioning control of
Eco drive modeOnOff—O
12
Page 584 of 596

584Alphabetical index
PRIUS c_U (OM52J11U)
Back door ................................. 135
Back-up lightsReplacing light bulbs............. 460
Wattage ................................ 540
Battery
Checking ............................... 428
Hybrid battery (traction battery) ................... 78
If the vehicle 12-volt battery is discharged .......... 518
Preparing and checking
before winter....................... 273
Bluetooth
® audio
Bluetooth® audio................... 329
Portable player...................... 317
Set up ................................... 321
Using the Bluetooth
®
audio................................... 329
Bluetooth
® phone
Making a phone call .............. 334
Set up ................................... 322
Bottle holders .......................... 390
Brake Fluid ...................................... 538
Parking brake........................ 203
Brake assist ............................. 264
Break-in tips ............................. 170 Care
Exterior ................................. 400
Interior .................................. 403
Seat belts.............................. 404
Cargo capacity......................... 181
CD player.................................. 300
Chains ...................................... 274
Child-protectors ...................... 130
Child restraint system
Booster seats, definition ......... 60
Booster seats, installation....... 68
Convertible seats, definition ............................... 60
Convertible seats,
installation ............................ 67
Front passenger occupant classification syst em ............ 52
Infant seat, definition .............. 60
Infant seats, installation .......... 65
Installing CRS with LATCH system ..................... 64
Installing CRS with seat belts .............................. 65
Installing CRS with top tether straps ................... 69
BC