2012 Lexus HS250h headlights

211
2-3. Operating the lights and windshield wipers
2
When driving
HS250h_U_75050U
Headlight cleaner switch∗
∗: If equipped
■The headlight cleaners can be operated when
The “POWER” switch is in ON mode and the headlight switch is turned on.
■Windshield washer linked operation
●When the windshield washer is operated with the “POWER” switch in ON
mode and the headlights on, the headlight cleaners will operate once.
(→ P. 2 0 4 )
●From the second time the windshield washer is operated, the headlight cleaner
will not operate in sync with the windshield washer.
(Turning the “POWER” switch to OFF or the low beam headlights off resets the
headlight cleaner synchronization mode.)
NOTICE
■When the washer fluid tank is empty
Do not press the switch continually as the washer fluid pump may overheat.
Washer fluid can be sprayed on the headlights.
Press the switch to clean the
headlights.

236
2-4. Using other driving systems
HS250h_U_75050U
NOTICE
■In the following situations, the LKA will not work, or will not perform reliably:
●When lane markers are interrupted or are not present, such as before a tollbooth.
●When lane markers are only on one side of the road.
●When driving on a sharp curve.
●When lanes are extremely narrow or extremely wide.
●When the vehicle leans to one side an unusual amount due to a heavy load or
improper tire inflation pressure.
●When the following distance between your vehicle and the vehicle ahead is
extremely short.
●When the lane markers are broken, “Botts’ dots”, or “Raised pavement marker”.
●When lane markers are obscured or partially obscured by sand, dirt, etc.
●When driving on a particularly bright road surface, such as concrete.
●When driving on a road surface that is bright due to reflected light.
●When driving in a location where the light level changes rapidly, such as the
entrance to or exit from a tunnel.
●When sunlight or the headlights of oncoming vehicles are shining directly into the
camera lens.
●When driving on roads that are branching or merging.
●When pavement lane markers are difficult to see due to rain, snow, fog, etc.
●When driving on a road surface that is wet due to rain, previous rainfall, standing
water, etc.
●When the vehicle experiences strong up-and-down motion such as when driving
on an extremely rough road or on a seam in the pavement.
●When headlight brightness is reduced due to dirt on the lenses, or when the
headlights are misaligned.
●When driving with a strong crosswind.

473
4-3. Do-it-yourself maintenance
4
Maintenance and care
HS250h_U_75050U
10P CON MAIN7. 5 A
P position control system, hybrid sys-
tem, smart access system with push-
button start
11AM27. 5 A
Smart access system with push-button
start, hybrid system, multiport fuel
injection system/sequential multiport
fuel injection system, P position con-
trol system, cruise control system,
dynamic radar cruise control system
12ECU-B27. 5 A
Smart access system with push-button
start, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, trunk opener switch
13MAYDAY10 AMAYDAY
14ECU-B310 AAir conditioning system, rear window
defogger, mirror heater
15TURN & HAZ10 ATurn signal lights, emergency flashers
16ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
17ABS MAIN NO.120 AElectronically controlled brake system
18P/ I 240 A
P position control system, hybrid sys-
tem, transmission, smart access sys-
tem with push-button start, horn,
headlights (low beam), back-up lights
19ABS MTR 130 AElectronically controlled brake system
20ABS MTR 230 AElectronically controlled brake system
21H-LP HI MAIN20 AHeadlights (high beam)
22AMP NO.230 AAudio system, navigation system
FuseAmpereCircuit

481
4-3. Do-it-yourself maintenance
4
Maintenance and care
HS250h_U_75050U
Light bulbs
You may replace the following bulbs by yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb replacement
seems difficult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
■ Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. ( →P. 568)
■ Remove the engine compartment covers
→ P. 4 3 8
■ Front bulb locations
Halogen headlights
Front side marker light Headlight low beam
Parking light
Front turn signal light
Front fog lightHeadlight high beam
and daytime running light

482
4-3. Do-it-yourself maintenance
HS250h_U_75050U
LED headlights
■Rear bulb locations
Front fog light
Front turn signal light
Parking lightFront side marker light
Headlight high beam and
daytime running light
Rear turn signal light
Back-up light
License plate light

483
4-3. Do-it-yourself maintenance
4
Maintenance and care
HS250h_U_75050U
Replacing light bulbs■ Headlight high beams and daytime running lights (halogen head-
lights)
Turn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.
■ Headlight high beams and daytime running lights (LED headlights)
Turn the cover counterclockwise.

484
4-3. Do-it-yourself maintenance
HS250h_U_75050UTurn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.
■ Headlight low beams (halogen headlights)
Turn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.

485
4-3. Do-it-yourself maintenance
4
Maintenance and care
HS250h_U_75050U■
Front turn signal lights (halogen headlights)
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■ Front turn signal lights (LED headlights)
Turn the bulb base counterclock-
wise.
Remove the light bulb.