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7-3. Do-it-yourself maintenance
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by
your Toyota dealer.
●LED headlights
●Front side marker lights (LED headlights)
●Parking lights (LED headlights)
●Daytime running lights (LED headlights)
●Stop/tail lights
●Rear side marker lights
●High mounted stoplight
■LED lights
The LED headlights, front side marker lights, parking lights, daytime running
lights, stop lights, tail lights, rear side marker lights and high mounted stop-
light consist of a number of LEDs. If any of the LEDs burn out, take your vehi-
cle to your Toyota dealer to have the light replaced.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction. Contact your Toyota dealer for more information in the
following situations:
●Large drops of water have built up on the inside of the lens.
●Water has built up inside the headlight.
■When replacing light bulbs
P. 465
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PRIUS v_OM_OM47B12U_(U)
4797-3. Do-it-yourself maintenance
7
Maintenance and care
WARNING
■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 it 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.
●Check the wattage of the bulb before installing to prevent heat damage.
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4928-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
Slip indicator light
Indicates a malfunction in:
• The VSC system;
• The TRAC system; or
• The hill-start assist control system
Have the vehicle inspected by your Toyota dealer
immediately.
The light will flash when the above systems and/or ABS
are operating.
(If equipped)
Parking lock system warning light (warning buzzer)
Indicates a malfunction in the shift control system
• 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.
• The power switch may not be turned off. If this happens,
applying the parking brake will enable the switch to be
turned off.
Have the vehicle inspected by your Toyota dealer
immediately.
(If equipped)
Parking lock system warning message (warning buzzer)
Indicates a malfunction in the shift control system when
the vehicle is stopped
• 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.
• The power switch may not be turned off. If this happens,
applying the parking brake will enable the switch to be
turned off.
Have the vehicle inspected by your Toyota dealer
immediately.
(If equipped)
LED headlight warning light
Indicates a malfunction in the LED headlights
The LED headlights will not normally illuminate when
there is a malfunction, however they may be able to illu-
minate depending on the nature of the problem.
Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightWarning light/Details/Actions
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5088-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your vehicle.
(U.S.A. only)
Indicates that all maintenance according to the
driven distance on the maintenance schedule
*
should be performed soon.
Comes on approximately 4500 miles (7200 km)
after the message has been reset.
If necessary, perform maintenance.
(U.S.A. only)
Indicates that all maintenance is required to cor-
respond to the driven distance on the mainte-
nance schedule
*.
Comes on approximately 5000 miles (8000 km)
after the message has been reset. (The indica-
tor will not work properly unless the message
has been reset.)
Perform the necessary maintenance.
Please reset the message after the mainte-
nance is performed. (P. 414)
(If equipped)
The Automatic High Beam switch was pressed
with the low beam headlights turned on.
Turn the high beam headlights on before
pressing the Automatic High Beam switch.
(If equipped)
Indicates that, since the VSC (Vehicle Stability
Control) system was turned off, the pre-collision
brake system operation is stopped
Turn the VSC on. (P. 249)
(If equipped)
Indicates that the pre-collision system is not cur-
rently functional
Check the grille cover and the sensor and
clean them if they are dirty.
Warning messageDetails/Actions
(Flashes)
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PRIUS v_OM_OM47B12U_(U)
8-2. Steps to take in an emergency
If the hybrid system will not star t
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly.
* (P. 536)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. (P. 79)
●There may be a malfunction in the immobilizer system.
* (P. 8 2 )
●There may be a malfunction in the shift control system.
*
(P. 177, 492, 505)
●The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. (P. 535)
*: It may not be possible to shift the shift position other than P.
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 538)
●The 12-volt battery terminal connections may be loose or corroded.
(P. 439)
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. (P. 174)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
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5358-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 538)
●One or both of the 12-volt battery terminals may be disconnected.
(P. 439)
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 cases of emergency.
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.
Emergency start function
1
2
3
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5408-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
Make sure the “READY” indicator comes on. If the indicator light
does not come on, contact your Toyota dealer.
Once the hybrid system has started, remove the jumper cables in
the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the
fuse box cover to its original position.
When installing, first hook the fuse box cover onto the two rear tabs.
Once the hybrid system starts, have the vehicle inspected at your
Toyota dealer as soon as possible.
■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.
■When the 12-volt battery is removed or discharged
●The hybrid system may not start. (P. 440)
●If the 12-volt battery discharges while the shift position is in P, it may not be
possible to shift the shift position to other positions. In this case, the vehicle
cannot be towed without lifting both front wheels because the front wheels
will be locked. (P. 484)
●When the 12-volt battery is reconnected, start the hybrid system and con-
firm that the shift position can be changed to each position using the shift
position indicator.
■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.)
6
7
8
Page 560 of 620
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PRIUS v_OM_OM47B12U_(U)
9-1. Specifications
Light bulbs
Light bulbsBulb No.WTy p e
Exterior
Halogen headlights*
Low beam
High beamH11
HB355
60A
B
Fog lights*H1619C
Front turn signal lights
Halogen headlights
LED headlights
7444NA
WY21W28
21D
D
Front side marker lights (vehi-
cles with halogen headlights)W5W5E
Parking lights (vehicles with
halogen headlights)W5W5E
Rear turn signal lightsWY21W21D
Back-up lightsW21W21E
License plate lightsW5W5E
Interior
Vanity lights8E
Personal/interior lights
Vehicles without
panoramic roof
Vehicles with
panoramic roof
5
8E
E
Rear interior light8F
Door courtesy lights5E
Luggage compartment light5E
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