light TOYOTA PRIUS 2010 3.G Owners Manual

479
4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U (OM47668U) U.S.A.
■
Front fog lights (vehicles with LED headlights)
Remove the engine under cover
bolt and clip and pull down the
engine under cover.
Unplug the connector while
pushing the lock release.
Turn the bulb base counterclock-
wise.
ITO43P140
STEP1
ITO43P141
STEP2
ITO43P142
STEP3

480 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.■
Front turn signal lights
Remove the engine under cover bolt and clip and pull down
the engine under cover. ( P. 479)
Unplug the connector while
pushing the lock release.
Remove the light bulb.
STEP1
ITO43P143
STEP2
ITO43P144
STEP3

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4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U (OM47668U) U.S.A.
■
Rear turn signal lights and back-up lights
Open the back door and remove
the cover.
Turn the bulb base counterclock-
wise.
Rear turn signal light
Back-up light
Remove the light bulb. Rear turn signal light
Back-up light
ITO43P145
STEP1
ITO43P146
STEP2
ITO43P147
STEP3

482 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.■
License plate lights
Open the back door and remove
the cover.
To protect the cover, place a rag
between the flathead screwdriver
and cover as shown in the illus-
tration.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■ Lights other than the above
If any of the lights listed below has burnt out, have your Toyota
dealer replace it.
●Headlight low beams (LED type)
● Stop/tail lights
● High mounted stoplight
ITO43P148
STEP1
ITO43P149
STEP2
ITO43P150
STEP3

483
4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U (OM47668U) U.S.A.
■
Condensation build-up on th e inside of the lens
Contact your Toyota dealer for more information in the following situations.
Temporary condensation build-up on the inside of the headlight lens does
not indicate a malfunction.
● Large drops of water are built up on the inside of the lens.
● Water has built up inside the headlight.
■ LED lights
The headlight low beams (LED type), stop/tail lights and high mounted
stoplight consist of a number of LEDs. If any of the LEDs burn out, take your
vehicle to your Toyota dealer to have the light replaced.
■ Installing the engine under cover clip
Insert the clip.

484 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.
CAUTION
■Replacing light bulbs
● Turn off the headlights. Do not attempt to replace the bulb immediately
after turning off the headlights. 
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. Failing 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.

When trouble arises5
485
PRIUS_U (OM47668U) U.S.A.
5-1. Essential informationEmergency flashers ......... 486
If your vehicle needs to 
be towed ........................ 487
If you think something is 
wrong ............................. 493
Event data recorder ......... 494
5-2. Steps to take in an 
emergency
If a warning light turns on or 
a warning buzzer 
sounds... ........................ 496
If a warning message is 
displayed ........................ 508
If you have a flat tire......... 524
If the hybrid system will 
not start .......................... 538
If you lose your keys ........ 540
If the electronic key does 
not operate properly....... 541
If the 12 volt battery is 
discharged ..................... 543
If your vehicle 
overheats ....................... 548
If the vehicle becomes 
stuck .............................. 553

486
PRIUS_U (OM47668U) U.S.A.
5-1. Essential information
Emergency flashers
NOTICE
■To prevent 12 volt battery discharge
Do not leave the emergency flashers on longer than necessary when the
hybrid system is not operating.
Use the emergency flashers if th e vehicle malfunctions or is
involved in an accident.
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.
ITO51P101

496
PRIUS_U (OM47668U) U.S.A.
5-2. Steps to take in an emergency
If a war ning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*: Parking brake engaged warning buzzer: 
A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph
(5 km/h) or more.
Warning lightWarning light/Details

(U.S.A.)

(Canada)
Brake system warning light and warning buzzer* (red
indicator)
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released, the system is operating normally.
Calmly perform the following actions if any of the warning lights turn
on or flash. If a light turns on or flashes, but then turns off, this does
not necessarily indicate a malfunction in the system.

5
When trouble arises
497
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Toyota dealer.
Have the vehicle inspected immediately.Failing 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 lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Warning lightWarning light/Details
(U.S.A.)
(Canada) Malfunction indicator lamp
Malfunction in:
• The emission control system;
• The electronic engine control system;
• The electronic hybrid system control system; or
• The electronic throttle control system.
SRS warning light Malfunction in:
• The SRS airbag system;
• Front passenger occupant classification system; or
• The seat belt pretensioner system.