2012 TOYOTA PRIUS headlights

538
5-2. Steps to take in an emergency
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. 192)
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly.
*
(  P. 541)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● There may be a malfunction in the immobilizer system.
*
(  P. 135)
● There may be a malfunction in the P position control system.
*
( P. 197, 509)
*: It may not be possible to shift the shift position from P to another
position.
■ 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. 543)
● The 12-volt battery terminal c onnections may be loose or cor-
roded.

5
When trouble arises
539
5-2. Steps to take in an emergency
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. 543)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3

546 5-2. Steps to take in an emergency
■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. 433)
● 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. 485)
● 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.)

570 6-1. Specifications
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

622 Alphabetical index
Floor mats................................. 372
FluidBrake ..................................... 568
Washer .................................. 429
Fog lights
Replacing light bulbs ............. 467
Switch.................................... 256
Wattage ................................. 570
Foot lights................................. 353
Front fog lights Replacing light bulbs ............. 467
Switch.................................... 256
Wattage ................................. 570
Front passenger occupant
classification system ............ 154
Front passenger’s seat belt reminder light......................... 498
Front seats Adjustment ..............................99
Front side marker light
Replacing light bulbs ............. 467
Wattage ................................. 570
Front turn signal lights
Replacing light bulbs ............. 467
Switch.................................... 211
Wattage ................................. 570
Fuel Capacity ................................ 562
Fuel gauge ............................ 214
Information ............................ 571
Refueling ............................... 131
Type ...................................... 571
Fuel door................................... 131
Fuel filler door .......................... 131
Fuses......................................... 456 Garage door opener ................ 380
Gauges...................................... 214
Glove boxes ............................. 358
Hands-free system
(for cellular phone)
*
Hazard lights Switch ................................... 484
Head restraints Adjustment ........................... 105
Headlight cleaner ..................... 265
Headlights Cleaner ................................. 265
Replacing light bulbs ............. 467
Switch ................................... 250
Wattage................................. 570
Heaters Automatic air conditioning system ................................ 326
Seat heaters.......................... 369
Side mirrors........................... 346
Hill-start assist control ............ 301
Hood.......................................... 413
Hooks Cargo .................................... 374
Horn .......................................... 213
Hybrid system Eco savings record ................. 53
Emergency shut off system..... 37
Energy monitor/consumption screen ............. 42
High voltage components ....... 36
Hybrid System Indicator ........ 225
Ignition switch ....................... 192
Monthly fuel consumption record .............. 53
“POWER” switch ................... 192
FG
H