2015 TOYOTA PRIUS headlights

492 4-3. Do-it-yourself maintenance
PRIUS_OM_OM47A17U_DVD_(U)
CAUTION
■Replacing light bulbs
●Be sure to stop the hybrid system and turn off the lights. Do not attempt to
replace the bulb immediately after turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. When i\
t is
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
● Do not attempt to repair or disassemble light bulbs, connectors, electric
circuits or component parts.
Doing so may result in death or serious injury due to electric shock.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.

550
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on the
situation. Check the following a nd perform the appropriate proce-
dure:
■ The hybrid system will not start even though the correct
starting procedure is being followed ( P. 195)
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly.
*
(  P. 553)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( P. 4 0 )
● There may be a malfunction in the immobilizer system.
*
(  P. 137)
● There may be a malfunction in the shift control system.
*
(  P. 200, 519)
*: It may not be possible to shift the shift position from P to other posi-
tion.
■ The interior lights and headlights are dim, or the horn does
not sound or sounds at a low volume
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 555)
● The 12-volt battery terminal c onnections may be loose or cor-
roded.

5
When trouble arises
551
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
Emergency start function
When the hybrid system does not start, the following steps can be
used as an interim measure to st art the hybrid system if the
“POWER” switch is functioning normally:
Set the parking brake.
Turn the “POWER” switch to ACCESSORY mode.
Press and hold the “POWER” switch for about 15 seconds
while depressing the brake pedal firmly.
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 headlights do not turn on, or the horn
does not sound
One of the following may be the cause of the problem:
●One or both of the 12-volt ba ttery terminals may be discon-
nected.
● The 12-volt battery may be discharged. ( P. 555)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3

558 5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
■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 run-
ning at a low speed for an extended period, such as in heavy traffic.
■ When the 12-volt battery is removed or discharged
●The hybrid system may not start. ( P. 442)
● If the 12-volt battery is depleted with the shift position in P, it will not be
possible to shift the shift position other than P. In this case, the vehicle
cannot be towed without lifting both front wheels because the front
wheels are locked by the parking lock. ( P. 495)
● When the 12-volt battery is reconnected, start the hybrid system, depress
the brake pedal, and confirm that it is possible to shift into each shift posi-
tion.
■ 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 oper-
ating.)

582 6-1. Specifications
PRIUS_OM_OM47A17U_DVD_(U)
Light bulbs
A: H11 halogen bulbs
B: HB3 halogen bulbs
C: H16 halogen bulbs
D: Wedge base bulbs (amber)
E: Wedge base bulbs (clear)
F: Double end bulbs

*
: If equipped
Light BulbsBulb No.WTy p e
Exterior Halogen headlights
Low beam
High beam
LED headlights High beam H11
9005
9005 55
60
60A
B
B
Fog lights
*H16 19 C
Front turn signal lights WY21W 21 D
Front side marker lights W5W 5 E
Parking lights
(halogen headlights) W5W 5 E
Rear turn signal lights WY21W 21 D
Back-up lights W21W 21 E
License plate lights W5W 5 E
InteriorFront interior/personal lights
5E
Rear interior light 8F
Vanity lights 8E
Door courtesy lights 5E
Luggage compartment light 5F

634 Alphabetical index
PRIUS_OM_OM47A17U_DVD_(U)
Floor mats................................. 379
FluidBrake ..................................... 580
Washer .................................. 438
Fog lights Replacing light bulbs ............. 478
Switch.................................... 259
Wattage ................................. 582
Foot lights................................. 359
Front fog lights
Replacing light bulbs ............. 478
Switch.................................... 259
Wattage ................................. 582
Front passenger occupant classification system ............ 156
Front passenger’s seat belt reminder light......................... 508
Front seats
Adjustment ............................ 100
Front side marker light Replacing light bulbs ............. 478
Wattage ................................. 582
Front turn signal lights Replacing light bulbs ............. 478
Switch.................................... 214
Wattage ................................. 582
Fuel Capacity ................................ 574
Fuel gauge ............................ 217
Information ............................ 583
Refueling ............................... 133
Type ...................................... 583
Fuel door................................... 133
Fuel filler door .......................... 133
Fuses......................................... 466 Garage door opener ................ 387
Gauges...................................... 217
Glove boxes ............................. 364
Hands-free system
(for cellular phone)
*
Hazard lights Switch ................................... 494
Head restraints Adjustment ........................... 106
Headlight cleaner ..................... 268
Headlights
Cleaner ................................. 268
Replacing light bulbs ............. 478
Switch ................................... 253
Wattage................................. 582
Heaters
Automatic air conditioning system ................................ 332
Seat heaters.......................... 375
Side mirrors........................... 352
Hill-start assist control ............ 306
Hood.......................................... 422
Hooks Cargo .................................... 381
Horn .......................................... 216
Hybrid system Eco savings record ................. 55
Emergency shut off system..... 39
Energy monitor/consumption screen ............. 44
High voltage components ....... 38
Hybrid System Indicator ........ 227
Ignition switch ....................... 195
Monthly fuel consumption record .............. 55
“POWER” switch ................... 195
FG
H