engine Lexus IS250C 2010 Do-It-Yourself Maintenance / LEXUS 2010 IS350C/250C OWNERS MANUAL (OM53A20U)

375
3-7. Other interior features
3
Interior features
Safety Connect LED light IndicatorsWhen the “ENGINE START STOP” swit ch is turned to IGNITION ON
mode, the red indicator light comes on for 2 seconds then turns off.
Afterward, the green indicator light comes on, indicating that the service
is active.
The following indicator light patterns indicate specific system usage con-
ditions:
● Green indicator light on = Active service
● Green indicator light flashing = Safety Connect call in process
● Red indicator light (except at vehicle start-up) = System malfunction
(contact your Lexus dealer)
● No indicator light (off) = Saf ety Connect service not active
Safety Connect services
■ Automatic Collision Notification
In case of either airbag deployment or severe rear-end collision, the
system is designed to automatically call the response center. The
responding agent receives the vehicl e’s location and attempts to speak
with the vehicle occupants to asse ss the level of emergency. If the
occupants are unable to communicate, the agent automatically treats
the call as an emergency, contacts the nearest emergency services
provider to describe the situation, and requests that assistance be sent
to the location.

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3-7. Other interior features
3
Interior features
Safety information for Safety ConnectImportant! Read this information before using Safety Connect.
■ Exposure to radio frequency signals
The Safety Connect sy stem installed in your vehicle is a low-power
radio transmitter and receiver. It receives and also sends out radio fre-
quency (RF) signals.
In August 1996, the Federal Communications Commission (FCC)
adopted RF exposure guidelines with safety levels fo r mobile wireless
phones. Those guidelines are consistent with the safety standards pre-
viously set by the following U.S. and international standards bodies.
● ANSI (American National Standards Institute) C95.1 [1992]
● NCRP (National Council on Radiation Protection and Measure-
ment) Report 86 [1986]
● ICNIRP (International Commission on Non-Ionizing Radiation Pro-
tection) [1996]
Those standards were based on co mprehensive and periodic evalua-
tions of the relevant scientific literature. Over 120 scientists, engineers,
and physicians from universities, an d government health agencies and
industries reviewed the available body of research to develop the
ANSI Standard (C95.1).
The design of Safety Connect co mplies with the FCC guidelines in
addition to those standards.

Maintenance and care4
379
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 380
Cleaning and protecting the vehicle interior ............. 383
4-2. Maintenance Maintenance requirements ....................... 386
General maintenance ......... 388
Emission inspection and maintenance (I/M)
programs................................. 391 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ........................... 392
Hood .......................................... 395
Positioning a floor jack ......... 396
Engine compartment ........... 398
Tires............................................. 412
Tire inflation pressure........... 422
Wheels ...................................... 426
Air conditioning filter ........... 428
Electronic key battery........... 431
Checking and replacing fuses ........................................ 433
Headlight aim ......................... 448
Light bulbs ................................ 450

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4-2. Maintenance
4
Maintenance and care
■Allow inspection and repairs to be performed by a Lexus dealer
●Lexus technicians are well-trained specialists and are kept up to date with the
latest service information. They are well informed about the operations of all
systems 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
It could result in serious damage to the vehicle and possible serious injury or death.
■Warning in handling of 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.
●Battery posts, terminals and related accessories contain lead and lead com-
pounds which are known to cause brai n damage. Wash your hands after han-
dling. ( P. 4 0 8 )

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4-2. Maintenance
General maintenance
Engine compartment
ItemsCheck points
BatteryMaintenance-free. (P. 4 0 8 )
Brake fluidAt the correct level? ( P. 4 0 6 )
Engine coolantAt the correct level? ( P. 4 0 4 )
Engine oilAt the correct level? ( P. 4 0 1 )
Exhaust systemNo fumes or strange sounds?
Radiator/condenser/hosesNot blocked with foreign matter?
( P. 4 0 6 )
Wa s h e r f l u i dAt the correct level? ( P. 4 1 1 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “War ranty and Services Guide” or “Owners
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.

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4-2. Maintenance
Vehicle exterior
ItemsCheck points
Steering wheel
• Moves smoothly?
• Has correct free play?
• No strange noises?
ItemsCheck points
Door/trunk• Operate smoothly?
Engine hood• The lock system works properly?
Fluid leaks• Is there any leakage after parking?
Ti r e
• Inflation pressure is correct?
• Tire surfaces not worn or dam-aged?
• Tires rotated according to the maintenance schedule?
• Wheel nuts are not loose?
CAUTION
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.

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4-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct proce-
dure given in these sections.
ItemsPa r t s a n d t o o l s
Battery condition (P. 4 0 8)
•Warm water
• Baking soda
•Grease
• Conventional wrench(for terminal clamp bolts)
Brake fluid level ( P. 4 0 6 )
• FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
•Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine coolant level ( P. 4 0 4 )
• “Toyota Super Long Life Coolant”
or similar high-quality ethylene gly-
col-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 engine coolant)

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4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions.
■When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator , exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easi ly, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
ItemsPa r t s a n d t o o l s
Engine oil level ( P. 4 0 1 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used only for adding engine oil)
Fuses ( P. 4 3 3 )• Fuse with same amperage rating as
original
Tire inflation pressure ( P. 422)• Tire pressure gauge
• Compressed air source
Headlight aim ( P. 4 4 8 )• Phillips-head screwdriver
Radiator and condenser (P. 4 0 6 )
Wa s h e r f l u i d ( P. 4 1 1 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

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4-3. Do-it-yourself maintenance
CAUTION
■When working near the electric cooling fan or radiator grille
Be sure the “ENGINE START STOP” switch is OFF.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fan may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (P. 4 0 6 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in the eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air. Also a backfire could cause a fire in the engine compartment.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■When raising your vehicle
Make sure to observe the following to reduce the possibility of death or serious
injury.
●When using a floor jack, follow the instructions of the manual provided with the
jack.
●Do not use the jack that was supplied with your vehicle.
●Do not put any part of your body or get underneath the vehicle supported only by
the floor jack.
Always use automotive jack stands on a solid, flat, level surface.
●Do not start the engine while the vehicle is supported by the floor jack.
●Stop the vehicle on level firm ground, firmly set the parking brake and put the shift
lever in P (automatic) or R (manual).
●Make sure to set the floor jack properly at the jack point.
Raising the vehicle with an improperly positioned floor jack will damage the vehi-
cle and may cause the vehicle to fall off the floor jack.
●Do not raise the vehicle while someone is in the vehicle.
●When raising the vehicle, do not place any objects on top of or underneath the
floor jack.
●When raising the vehicle, ensure that there is sufficient surrounding space. The
vehicle’s position may change slightly when lowered.
●Lift up the vehicle using a floor jack such as
the one shown in the illustration.