2010 Lexus HS250h maintenance

474
4-3. Do-it-yourself maintenance
■Parking lights/front side marker lights (halogen headlights)
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■ P
arking lights (LED headlights)
Turn the bulb base counterclock-
wise.
Remove the light bulb.

475
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Front side marker lights (LED headlights)
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■ F
ront fog lights
Remove the fender liner bolts, clip
and r
emove the fender liner.
Removing the clip
Installing the clip

476
4-3. Do-it-yourself maintenance
Turn the bulb base counterclock-
wise.
Unplug the connector while
depr
essing the lock release.
■ B
ack-up lights
Open the trunk lid and remove the
co
ver.
Turn the bulb base counterclock -
wise.

477
4-3. Do-it-yourself maintenance
4
Maintenance and care
Remove the light bulb.
■ License plate lights
Open the trunk lid and remove the
co
ver, clips and partly remove the
cover.
Turn the bulb base counterclock -
wise.
Remove the light bulb.

478
4-3. Do-it-yourself maintenance
■Rear turn signal lights
Open the trunk lid and remove the
co
ver.
To prevent damage to the rear
combination assembly, cover the
tip of the screwdriver with a rag.
Remove the bolts, stopper rubber
and rear combination assembly.
Turn the bulb base counterclock -
wise.
Remove the light bulb.

479
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Lights other than the above
If any of the lights listed belo
w has burnt out, have it replaced by your
Lexus dealer.
● Headlight lo
w beams (LED headlight type)
● Side turn signal lights
● Stop
/tail lights
●T
ail lights
●R
ear side marker lights
●High mounted stoplight
● Ou
ter foot lights
■When replacing the front right headlight, fr ont turn signal lights and parking light
bulbs
■LED light bulbs
The headlight low beams (LED headlights type), side tu
rn signal lights, rear side
marker lights, stop/tail lights, tail lights and high mounted stoplight consist of a num -
ber of LEDs. If any of the LEDs burn out, take your vehicle to your Lexus dealer to
hav
e the light replaced.
Remove the securing clip and move the
washer fluid filler opening to allow easy
access to the light bulbs.
After replacing the bulbs, make sure to
secure the washer fluid filler opening with the
clip.

480
4-3. Do-it-yourself maintenance
■Condensation build-up on the inside of the lens
Contact your Lexus dealer for more information in the following situations. Tempo-
rary 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.
CAUTION
■Replacing light bulbs
●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 drop ped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failur to do so may
result in heat damage, fire, or water ente ring 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.

5
When trouble arises
499
5-2. Steps to take in an emergency
CAUTION
●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 system 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 re commended 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 different 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 pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure
monitoring system (TPMS-tire pressure warning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, 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 an d can lead to tire failure. Under-inflation
also reduces fuel efficiency 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 substitute for
proper tire maintenance, and it is the driver’s responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when th e system is not operating properly. The
TPMS (tire pressure warning system) malf unction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists . When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.