2012 TOYOTA PRIUS V maintenance

430 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
■Front turn signal lights
Remove the engine under cover bolt and clip and pull down
the engine under cover. ( P. 428)
Turn the bulb base counterclock-
wise.
Remove the light bulb.
When installing, reverse the steps listed.
STEP 1
STEP 2
ITO43P144
STEP 3
STEP 4

431
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
4
Maintenance and care
■
Rear turn signal lights and back-up lights
Open the back door and remove
the cover.
To prevent damage, cover the tip
of the screwdriver with a rag.
Turn the bulb base counterclock-
wise.
Rear turn signal light
Back-up light
Remove the light bulb. Rear turn signal light
Back-up light
When installing, reverse the steps listed.
STEP 1
STEP 2
ITO43P147
STEP 3
STEP 4

432 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
■License plate lights
Open the back door and remove
the cover.
To prevent damage, cover the tip
of the screwdriver with a rag.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
When installing, reverse the steps listed.
STEP 1
STEP 2
ITO43P150
STEP 3
STEP 4

433
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
4
Maintenance and care
■
Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by
your Toyota dealer.
● Headlight low beams (LED type)
● Stop lights
● Tail lights
● Rear side marker lights
● High mounted stoplight
■LED lights
The headlight low beams (LED type), stop lights, tail lights, rear side marker
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.
■ 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 have built up on the inside of the lens.
● Water has built up inside the headlight.
■ When replacing light bulbs
 P. 419

434 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
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.

450 5-2. Steps to take in an emergency
PRIUS v_U (OM47784U)
Warning lightWarning light/DetailsCorrection procedure

(Turns on)
(If equipped) Pre-collision system warning
light
Indicates that the PCS is not
currently functional because
the grille cover or the radar sen-
sor is dirty, or the system has
overheated. • Clean the grille
cover and the radar
sensor.
• Once the system cools down, the sys-
tem became func-
tional.

(U.S.A.) Maintenance required
reminder light
Indicates that maintenance is
required according to the driven
distance on the maintenance
schedule.
*1
Illuminates for about 3 seconds
and then flashes for about 15
seconds approximately 4500
miles (7200 km) after the main-
tenance data has been reset. If necessary, perform
maintenance.
Comes on and remains on if the
distance driven exceeds 5000
miles (8000 km) after the main-
tenance data has been reset.
(The indicator will not work
properly unless the mainte-
nance data has been reset.) Perform the neces-
sary maintenance.
Please reset the
maintenance data
after the mainte-
nance is performed.
(
P. 356)
Open door warning light
(warning buzzer)
*2
Indicates that a door is not fully
closed Check that all the
doors are closed.

452 5-2. Steps to take in an emergency
PRIUS v_U (OM47784U)
*1: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s ManualSupplement” for the maintenance interval applicable to your vehicle.
*2: Open door warning buzzer:
The open door warning buzzer sounds to alert one or more of the doors is
not fully closed (with the vehicle having reached a speed of 3 mph [5km/h]).
*3: Seat belt warning buzzer:The seat belt warning buzzer sounds to alert the driver and/or front passen-
ger that their seat belts are not fastened. If the driver’s seat belt is not fas-
tened, the buzzer will sound for 6 seconds once the “POWER” switch is
turned to ON mode. If the vehicle reaches a speed of 12 mph (20 km/h), the
buzzer will sound once. If the seat belt is still unfastened after 30 seconds,
the buzzer will sound intermittently for 10 seconds. Then, if the seat belt is
still unfastened, the buzzer will sound in a different tone for 20 more sec-
onds.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (front), side
impact sensors (rear), driver’s seat position sensor, driver’s seat belt buckle
switch, front passenger occupant classification system (ECU and sensors),
“AIR BAG ON” indicator light, “AIR BA G OFF” indicator light, front passen-
ger’s seat belt buckle switch, seat belt pretensioner assemblies, airbags,
interconnecting wiring and power sources. ( P. 124)
■ Front passenger occupant classifi cation system (ECU and sensors),
seat belt reminder and warning buzzer
● If luggage is placed on the front passenger seat, the front passenger
occupant classification system (ECU and sensors) may cause the warn-
ing light to flash and the warning buzzer to sound even if a passenger is
not sitting in the seat.
● If a cushion is placed on the seat, the front passenger occupant classifi-
cation system (ECU and sensors) may not detect a passenger, and the
warning light may not operate properly.

456 5-2. Steps to take in an emergency
PRIUS v_U (OM47784U)
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If a tire is flat, change it with th e spare tire and have the flat tire
repaired by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning syste m may not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation pressure
label (tire and load information label). (If your vehicle has tires of a differ-
ent size than the size indicated on the vehicle placard or tire inflation
pressure label [tire and load information label], you should determine the
proper tire inflation pr essure for those tires.)