2013 TOYOTA PRIUS Head light

487
4-3. Do-it-yourself maintenance
PRIUS_OM_OM47791U_(U)
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. Hold the
bulb by the plastic or metal portion.
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.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.

5
When trouble arises
503
5-2. Steps to take in an emergency
PRIUS_OM_OM47791U_(U)
Warning lightWarning light/Details
(If equipped) Automatic headlight level
ing system warning light
Indicates a malfunction in the automatic headlight level-
ing system
(Flashes)
(If equipped) Cruise control indicator
Indicates a malfunction in the cruise control/dynamic
radar cruise control
(Flashes)
(If equipped) Radar cruise control indicator
Indicates a malfunction in the dynamic radar cruise con-
trol

5
When trouble arises
515
5-2. Steps to take in an emergency
PRIUS_OM_OM47791U_(U)
Have the vehicle inspected immediately.
Failure to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning messageDetails
(If equipped) Indicates a malfunction in the LED headlight system.
Indicates a malfunction in the P position control sys-
tem.
In this situation, there is a possibility that the parking
lock mechanism will not work.
When parking, park the vehicle on a flat surface and
apply the parking brake securely. Also, it may not be
possible to turn the “POWER” switch off. If this hap-
pens, applying the parking brake will enable the
switch to be turned off.
Indicates that the cooling performance of the hybrid
battery is low.

5
When trouble arises
545
5-2. Steps to take in an emergency
PRIUS_OM_OM47791U_(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. 194)
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly.
*
(  P. 548)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● There may be a malfunction in the immobilizer system.
*
(  P. 138)
● There may be a malfunction in the P position control system.
*
( P. 199, 515)
*: It may not be possible to shift the shift position from P to other posi-
tion.
■ The interior lights and headlight s 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. 550)
● The 12-volt battery terminal c onnections may be loose or cor-
roded.

546 5-2. Steps to take in an emergency
PRIUS_OM_OM47791U_(U)
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

5
When trouble arises
553
5-2. Steps to take in an emergency
PRIUS_OM_OM47791U_(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.)

576 6-1. Specifications
PRIUS_OM_OM47791U_(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

599
6-2. Customization
6
Vehicle specifications
PRIUS_OM_OM47791U_(U)
*: This function cannot be customized for vehicles sold in Canada.
ItemFunctionDefault set-
tingCustom-ized
setting
Door lock
( P. 89,
548) Unlocking using
a key
Driver’s
door
unlocked in 1-step, all doors
unlocked in 2-step All doors
unlocked in 1-step –OO
Speed-detecting
automatic door
lock function OFF ON OOO
Shifting the shift
position to any
position other
than P locks all
doors ON OFF OOO
Shifting the shift
position to P
unlocks all doors ON OFF OOO
Opening driver’s
door unlocks all
doors OFF ON – O O
Automatic
light control
system
( P. 252) Light sensor
sensitivity
Level 3Levels 1 to
5 OOO
Time elapsed
before head-
lights automati-
cally turn off after
doors are closed 30 seconds
0 seconds
OOO
60 seconds
90 seconds
Daytime running
lights
*ON OFF OOO