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487
4-3. Do-it-yourself maintenance
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4
Maintenance and care
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.
Page 546 of 640
546 5-2. Steps to take in an emergency
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Emergency start functionWhen 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: 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. 550)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3
Page 553 of 640

5
When trouble arises
553
5-2. Steps to take in an emergency
PRIUS_OM_OM47857U_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. 439)
● 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. 491)
● 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.)
Page 576 of 640
576 6-1. Specifications
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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
Page 628 of 640

628 Alphabetical index
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Floor mats................................. 377
FluidBrake ..................................... 574
Washer .................................. 435
Fog lights Replacing light bulbs ............. 473
Switch.................................... 258
Wattage ................................. 576
Foot lights................................. 357
Front fog lights
Replacing light bulbs ............. 473
Switch.................................... 258
Wattage ................................. 576
Front passenger occupant classification system ............ 156
Front passenger’s seat belt reminder light......................... 504
Front seats
Adjustment ............................ 101
Front side marker light Replacing light bulbs ............. 473
Wattage ................................. 576
Front turn signal lights Replacing light bulbs ............. 473
Switch.................................... 213
Wattage ................................. 576
Fuel Capacity ................................ 568
Fuel gauge ............................ 216
Information ............................ 577
Refueling ............................... 134
Type ...................................... 577
Fuel door................................... 134
Fuel filler door .......................... 134
Fuses......................................... 462 Garage door opener ................ 385
Gauges...................................... 216
Glove boxes ............................. 362
Hands-free system
(for cellular phone)
*
Hazard lights Switch ................................... 490
Head restraints Adjustment ........................... 107
Headlight cleaner ..................... 267
Headlights
Cleaner ................................. 267
Replacing light bulbs ............. 473
Switch ................................... 252
Wattage................................. 576
Heaters
Automatic air conditioning system ................................ 330
Seat heaters.......................... 373
Side mirrors........................... 350
Hill-start assist control ............ 305
Hood.......................................... 419
Hooks Cargo .................................... 379
Horn .......................................... 215
Hybrid system Eco savings record ................. 55
Emergency shut off system..... 39
Energy monitor/consumption screen ............. 44
High voltage components ....... 38
Hybrid System Indicator ........ 226
Ignition switch ....................... 194
Monthly fuel consumption record .............. 55
“POWER” switch ................... 194
FG
H