Page 474 of 621
PRIUS v_OM_OM47887U_(U)
4737-3. Do-it-yourself maintenance
7
Maintenance and care
■Front turn signal lightsTurn the bulb base counterclockwise.
Remove the light bulb.
When installing, reverse the steps listed.
1
Vehicles with halogen head-
lightsVehicles with LED headlights
2
3
Page 475 of 621
474
PRIUS v_OM_OM47887U_(U)
7-3. Do-it-yourself maintenance
■Rear turn signal lights and back-up lightsOpen the back door and
remove the cover.
To prevent damage, cover the
tip of the screwdriver with a rag.
Turn the bulb base counter-
clockwise.Rear turn signal light
Back-up light
Remove the light bulb. Rear turn signal light
Back-up light
When installing, reverse the steps listed.
1
2
1
2
3
1
2
4
Page 476 of 621
PRIUS v_OM_OM47887U_(U)
4757-3. Do-it-yourself maintenance
7
Maintenance and care
■License plate lightsOpen the back door and
remove the cover.
To prevent damage, cover the
tip of the screwdriver with a rag.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
When installing, reverse the steps listed.
1
2
ITO43P150
3
4
Page 477 of 621

476
PRIUS v_OM_OM47887U_(U)
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. 463
Page 478 of 621

PRIUS v_OM_OM47887U_(U)
4777-3. 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.
Page 480 of 621
479
PRIUS v_OM_OM47887U_(U)
8When trouble arises
8-1. Essential informationEmergency flashers .......... 480
If your vehicle has to be stopped in an
emergency ...................... 481
8-2. Steps to take in an emergency
If your vehicle needs to be towed ......................... 482
If you think something is wrong .............................. 487
If a warning light turns on or a warning buzzer
sounds ............................ 488
If a warning message is displayed......................... 501
If you have a flat tire.......... 518
If the hybrid system will not start ........................... 532
If the electronic key does not operate properly........ 534
If the 12-volt battery is discharged ...................... 536
If your vehicle overheats ... 541
If the vehicle becomes stuck ............................... 546
Page 481 of 621
480
PRIUS v_OM_OM47887U_(U)
8-1. Essential information
Emergency flashers
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
■Emergency flashers
If the emergency flashers are used for a long time while the hybrid system is
not operating (while the “READY” indicator is not illuminated), the 12-volt \
bat-
tery may discharge.
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in th e road due to a breakdown, etc.
Page 483 of 621

482
PRIUS v_OM_OM47887U_(U)
8-2. Steps to take in an emergency
If your vehicle needs to be towed
In the following situations, it is not possible to be towed by another
vehicle using cables or chains, as the front wheels may be locked due
to the parking lock. Contact your Toyota dealer or commercial towing
service.
●There is a malfunction in the shift control system. ( P. 490, 503)
● There is a malfunction in the immobilizer system. ( P. 82)
● There is a malfunction in the smart key system. ( P. 534)
● The 12-volt battery is discharged. ( P. 536)
The following may indicate a problem with your hybrid transmission.
Contact your Toyota dealer or commercial towing service before tow-
ing.
● The hybrid system warning light turns on or the hybrid system
warning message is displayed on the multi-information display and
the vehicle does not move.
● The vehicle makes an abnormal sound.
Do not tow with a sling-type truck
to prevent body damage.
If towing is necessary, we re commend having your vehicle
towed by your Toyota dealer or commercial towing service,
using a lift-type truc k or flat bed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.
Situations when it is not possibl e to be towed by another vehicle
Situations when it is necessary to contact dealers before towing
Towing with a sling-type truck