2010 Lexus HS250h headlight bulb

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4-2. MaintenanceMaintenance 
requirements.............................. 409
General maintenance ................... 411
Emission inspection and 
maintenance (I/M) 
programs ....................................... 415
4-3. Do-it-yourself maintenance Do-it-yourself service 
precautions ................................... 416
Hood................................................... 419
Positioning a floor jack............... 420
Engine compartment.................. 422
12-volt battery................................ 433
Tires ................................................... 437
Tire inflation pressure................. 445
Wheels.............................................. 448
Air conditioning filter................. 450
Electronic key battery ................ 453
Checking and replacing 
fuses ................................................ 455
Headlight aim 
(LED headlights) ....................... 467
Light bulbs ....................................... 469 5-1. Essential information
Emergency flashers .................... 482
If your vehicle needs to be 
towed ............................................ 483
If you think something is 
wrong ............................................ 489
Event data recorder.................... 490
5-2. Steps to take in an emergency If a warning light turns on 
or a warning buzzer 
sounds... ......................................... 492
If a warning message is 
displayed........................................ 501
If you have a flat tire...................... 521
If the hybrid system will not 
start ................................................ 530
If you lose your keys .................... 532
If the electronic key does 
not operate prop erly ............... 533
If the vehicle 12-volt battery 
is discharged ............................... 536
If your vehicle overheats ............ 541
If the vehicle becomes 
stuck................................................ 545
5When trouble arises

Maintenance and care4
401
4-1. Maintenance and careCleaning and protecting 
the vehicle exterior............ 402
Cleaning and protecting 
the vehicle interior .............. 406
4-2. Maintenance Maintenance 
requirements ........................ 409
General maintenance ............ 411
Emission inspection and 
maintenance (I/M) 
programs................................. 415 4-3. Do-it-yourself maintenance
Do-it-yourself service 
precautions ............................ 416
Hood ........................................... 419
Positioning a floor jack ......... 420
Engine compartment ........... 422
12-volt battery ........................ 433
Tires............................................ 437
Tire inflation pressure........... 445
Wheels ...................................... 448
Air conditioning filter ........... 450
Electronic key battery.......... 453
Checking and replacing 
fuses ........................................ 455
Headlight aim 
(LED headlights) .................. 467
Light bulbs ................................ 469

417
4-3. Do-it-yourself maintenance
4
Maintenance and care
ItemsPa r t s a n d t o o l s
Engine oil level (P. 4 2 4 )
• “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 4 5 5 )• Fuse with same amperage rating as
original
Headlight aim ( P. 4 6 7 )• Phillips-head screwdriver
Light bulbs( P. 4 6 9 )
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Radiator and condenser (P. 4 3 0 )
Tire inflation pressure ( P. 4 4 5 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 4 3 2 )
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

469
4-3. Do-it-yourself maintenance
4
Maintenance and care
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.
5 5 6 )
■ R
emove the engine compartment covers
 P.
4 2 3
■ F
ront bulb locations
Halogen headlights
Front side marker lightHeadlight low beam
Parking light
Front turn signal light
Front fog light
Headlight high beam

470
4-3. Do-it-yourself maintenance
LED headlights
■Rear bulb locations
Headlight high beam
Front fog lightFront turn signal light
Parking lightFront side marker light
Rear turn signal lightBack-up light
License plate light

471
4-3. Do-it-yourself maintenance
4
Maintenance and care
Replacing light bulbs
■Headlight high beams (halogen headlights)
Turn the bulb base counterclock-
wise.
Unplug the connector while
depr
essing the lock release.
■ Headlight high beams (LED headlights)
Turn the cover counterclockwise.

472
4-3. Do-it-yourself maintenance
Turn the bulb base counterclock-
wise.
Unplug the connector while
depr
essing the lock release.
■ Headlight lo
w beams (halogen headlights)
Turn the bulb base counterclock -
wise.
Unplug the connector while
depr
essing the lock release.

473
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Front turn signal lights (halogen headlights)
Turn the bulb base counterclock-
wise.
Remove the light bulb.
■ F
ront turn signal lights (LED headlights)
Turn the bulb base counterclock-
wise.
Remove the light bulb.