2010 TOYOTA PRIUS maintenance

478 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.■
Front side marker lights
For the right side only: Remove the bolt and unclip the engine
coolant reservoir hose. Then lift up the air cleaner inlet duct.
( P. 474)
Turn the bulb base counterclockwise.
Vehicles with LED headlights
Vehicles with halogen headlights
Remove the light bulb.
STEP1
STEP2
ITO43P187
ITO43P167
STEP3

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

481
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.

506 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
CAUTION
■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 th e vehicle placard or tire inflation
pressure label [tire and load informa tion label], you should determine the
proper tire inflation pr essure for those tires.)
As an added safety feature, your v ehicle has been equipped with a tire
pressure monitoring system (TPMS-tire pressure warning system) that
illuminates a low tire pressure telltal e (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressu re telltale (tire pressure warning light) illumi-
nates, you should stop and check your tires as soon as possible, and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel effi ciency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire main tenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached the
level to trigger illu mination of the TPMS low ti re pressure telltale (tire
pressure warning light).