2012 Lexus IS250 engine

356
3-7. Other interior features
IS350/250_U
Floor mat
CAUTION
Observe the following precautions.
Failure to do so may cause the driver's floor mat to slip, possibly interfering with the
pedals while driving. An unexpectedly high speed may result or it may become diffi-
cult to stop the vehicle, leading to a serious accident.
■When installing the driver's floor mat
●Do not use floor mats designed for other models or different model year vehicles,
even if they are Lexus Genuine floor mats.
●Only use floor mats designed for the driver's seat.
●Always install the floor mat securely using the retaining hooks (clips) provided.
●Do not use two or more floor mats on top of each other.
●Do not place the floor mat bottom-side up or upside-down.
■Before driving
Use only floor mats designed specifically for vehicles of the same model
and model year as your vehicle. Fix them securely in place onto the carpet.
Fix the floor mat in place using
the retaining hooks (clips) pro-
vided.
The shape of the retaining hooks
(clips) and the fixing procedure
of the floor mat for your vehicle
may differ from those shown in
the illustration. For details, refer
to the floor mat retention clip
installation instructions supplied
with the clips.
●Check that the floor mat is securely fixed in
the correct place with all the provided
retaining hooks (clips). Be especially care-
ful to perform this check after cleaning the
floor.
●With the engine stopped and the shift lever
in P (automatic transmission) or N (manual
transmission), fully depress each pedal to
the floor to make sure it does not interfere
with the floor mat.

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3-7. Other interior features
3
Interior features
IS350/250_U
Safety Connect LED light IndicatorsWhen the “ENGINE START STOP” switch 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) = Safety Connect service not active
Safety Connect services
■ Automatic Collis ion 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 vehicle’s location and attempts to speak
with the vehicle occupants to assess 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, an d requests that assistance be sent
to the location.

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3-7. Other interior features
3
Interior features
IS350/250_U
Safety information for Safety ConnectImportant! Read this information before using Safety Connect.
■ Exposure to radio frequency signals
The Safety Connect system 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 for 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 Stan dards 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 comprehensive and periodic evalua-
tions of the relevant scientific literature. Over 120 scientists, engineers,
and physicians from universities, and government health agencies and
industries reviewed the available body of research to develop the
ANSI Standard (C95.1).
The design of Safety Connect complies with the FCC guidelines in
addition to those standards.

Maintenance and care4
377
IS350/250_U
4-1. Maintenance and careCleaning and protecting the vehicle exterior............. 378
Cleaning and protecting the vehicle interior ............. 382
4-2. Maintenance Maintenance requirements ....................... 385
General maintenance .......... 387
Emission inspection and maintenance (I/M)
programs............................... 390 4-3. Do-it-yourself
maintenance
Do-it-yourself service precautions ............................ 391
Hood .......................................... 394
Positioning a floor jack ......... 395
Engine compartment ........... 397
Tires............................................. 412
Tire inflation pressure........... 424
Wheels ...................................... 428
Air conditioning filter ........... 430
Electronic key battery.......... 433
Checking and replacing fuses ........................................ 435
Headlight aim ......................... 449
Light bulbs................................. 451

386
4-2. Maintenance
IS350/250_U
■Reset the maintenance data (U.S.A. only)
After the required maintenance is performed according to the maintenance sched-
ule, please reset the maintenance data.
To reset the data, follow the procedures described below:Switch the display to the odometer ( →P. 158) when the engine is running.
Turn the “ENGINE START STOP” switch OFF.
While pressing the trip meter reset button, set the “ENGINE START
STOP” switch to IGNITION ON mode (but do not start the engine
because otherwise the reset mode will be cancelled). Continue to press
and hold the button until the trip meter displays “000000”.
■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 dealer 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 brain damage. Wash your hands after han-
dling. (→P. 4 0 8 )
STEP1
STEP2
STEP3

387
4-2. Maintenance
4
Maintenance and care
IS350/250_U
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. 404)
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. 411)
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Services Guide” or “Owners
Manual Supplement”. It is recommended 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
4
Maintenance and care
IS350/250_U
Vehicle exterior
Steering wheel
• Moves smoothly?
• Has correct free play?
• No strange noises?
ItemsCheck points
Door/trunk• Operates 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.
ItemsCheck points

391
4
Maintenance and care
IS350/250_U
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.
ItemsParts and tools
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. 404)
• “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)