2011 Lexus HS250h service

Maintenance and care4
407
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 408
Cleaning and protecting the vehicle interior ............... 412
4-2. Maintenance Maintenance requirements ......................... 415
General maintenance ........... 417
Emission inspection and maintenance (I/M)
programs................................. 421 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions ........................... 422
Hood .......................................... 425
Positioning a floor jack ......... 426
Engine compartment ........... 428
12-volt battery ........................ 439
Tires............................................ 443
Tire inflation pressure............ 451
Wheels ...................................... 454
Air conditioning filter ........... 456
Electronic key battery.......... 459
Checking and replacing fuses .......................................... 461
Headlight aim (LED headlights) ................. 473
Light bulbs ................................. 475

415
4
Maintenance and care
4-2. Maintenance
Maintenance requirements
■Repair and replacement
It is recommended that genuine Lexus parts be used for repairs to ensure perfor-
mance of each system. If non-Lexus parts are used in replacement or if a repair
shop other than a Lexus dealer performs repairs, confirm the warranty coverage.
To ensure safe and economical driving, day-to-day care and regular main-
tenance are essential. It is the owne r’s responsibility to perform regular
checks. Lexus recommends performing the following maintenance:
■ General maintenance
General maintenance should be performed on a daily basis. This
can be done by yourself or by a Lexus dealer.
■ Scheduled maintenance
Scheduled maintenance should be performed at specified intervals
according to the maintenance schedule.
For details about maintenance items and schedules, refer to the “War-
ranty and Service Guide”, “Owner’s Manual Supplement” or “Scheduled
Maintenance”.
■ Do-it-yourself maintenance
You can perform some maintenance procedures by yourself.
Please be aware that do-it-your self maintenance may affect war-
ranty coverage.
The use of Lexus repair manuals is recommended.
For details about warranty coverage, refer to the separate “Owner’s
Guide”, “Warranty and Service Guide”, “Owner’s Manual Supplement”
or “Warranty Booklet”.

416
4-2. Maintenance
■Allow inspection and repairs to be performed by a Lexus dealer
●Lexus technicians are well-trained speciali sts and are kept up to date with the
latest service information. They are well informed about the operation of all sys-
tems on your vehicle.
●Keep a copy of the repair order. It proves that the maintenance that has been
performed is under warranty coverage. If any problem should arise while your
vehicle is under warranty, your Lexus de aler will promptly take care of it.
CAUTION
■If your vehicle is not properly maintained
Improper maintenance could result in se rious damage to the vehicle and possible
serious injury or death.
■Handling of the 12-volt battery
●Engine exhaust, some of its constituents, and a wide variety of automobile com-
ponents contain or emit chemicals known to the State of California to cause can-
cer and birth defects and other reproductive harm. Work in a well ventilated area.
●Oils, fuels and fluids contained in vehicles as well as waste produced by compo-
nent wear contain or emit chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm. Avoid exposure and wash
any affected area immediately.
●12-volt battery posts, terminals and related accessories contain lead and lead
compounds which are known to cause brain damage. Wash your hands after
handling. ( P. 4 3 9 )

417
4-2. Maintenance
4
Maintenance and care
General maintenance
Engine compartment
Tr u n k
ItemsCheck points
Brake fluidIs the brake fluid at the correct level?(P. 4 3 7 )
CoolantIs the engine coolant at the correct
level? ( P. 4 3 4 )
Engine oilIs the engine oil at the correct level?
(P. 4 3 0 )
Exhaust systemThere should not be any fumes or
strange sounds.
Radiator/condenser
The radiator and condenser should
be free from foreign objects.
(P. 4 3 6 )
Wa s h e r f l u i dIs there sufficient washer fluid?
( P. 4 3 8 )
ItemsCheck points
12-volt batteryCheck the connections. ( P. 4 3 9 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Service Guide” or “Owner’s
Manual Supplement”. It is recomme nded that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.

421
4-2. Maintenance
4
Maintenance and care
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include
OBD (On Board Diagnostics) checks. The OBD system monitors the oper-
ation of the emission control system.
■ If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in
the emission control system. Your vehicle may not pass the I/M test
and may need to be repaired. Contact your Lexus dealer to service
the vehicle.
■ Your vehicle may not pass the I/M test in the following situations:
●When the 12-volt battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may
not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a temporary
malfunction and your vehicle may not pass the I/M test.
■ When the malfunction indicator la mp still remains on after several
driving trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Lexus dealer to prep are the vehicle for re-testing.

422
4-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct pro-
cedure as given in these sections.
ItemsPa r t s a n d t o o l s
12-volt battery condition (P. 4 3 9 )
•Grease
• Conventional wrench
(for terminal clamp bolts)
Brake fluid level ( P. 4 3 7 )
• FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
•Rag or paper towel
• Funnel (used only for adding brake
fluid)
Engine/power control unit coolant
level ( P. 4 3 4 )
• “Toyota Super Long Life Coolant”
or a similar high quality ethylene
glycol based non-silicate, non-
amine, non-nitrite and non-borate
coolant with long-life hybrid
organic acid technology.
For the U.S.A.:
“Toyota Super Long Life Coolant”
is pre-mixed with 50% coolant and
50% deionized water.
For Canada:
“Toyota Super Long Life Coolant”
is pre-mixed with 55% coolant and
45% deionized water.
• Funnel (used only for adding cool- ant)

433
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin
disorders such as inflammation and skin cancer, so care should be taken to avoid
prolonged and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water.
●Dispose of used oil and filters only in a safe and acceptable manner. Do not dis-
pose of used oil and filters in househol d trash, in sewers or onto the ground.
Call your Lexus dealer, service station or auto parts store for information con-
cerning recycling or disposal.
●Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly tightened.

450
4-3. Do-it-yourself maintenance
NOTICE
■Repairing or replacing tires, wheels, tire pressure warning valves, transmitters
and tire valve caps
●When removing or fitting the wheels, tires or the tire pressure warning valves and
transmitters, contact your Lexus dealer as the tire pressure warning valves and
transmitters may be damage d if not handled correctly.
●When replacing tire valve caps, do not us e tire valve caps other than those speci-
fied. The cap may become stuck.
■To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid seal ants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact your Lexus
dealer or other qualified service shop as so on as possible. Make sure to replace the
tire pressure warning valve and transmitter when replacing the tire. ( P. 444)
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the cushion-
ing ability of the tires. In addition, driv ing on rough roads may cause damage to the
tires themselves, as well as the vehicle’s wheels and body.
■Low profile tires (vehicles with P225/45R18 91W tires)
Low profile tires may cause greater damage than usual to the tire wheel when sus-
taining impact from the road surface. Therefore, pay attention to the following:
●Be sure to use proper tire inflation pressure. If tires are under-inflated, they may
be damaged more severely.
●Avoid potholes, uneven pavement, curbs an d other road hazards. Failure to do so
may lead to severe tire and wheel damage.
■If tire inflation pressure of each tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.