service Lexus IS F 2011 Using The Bluetooth Audio System /

415
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, early replacement may be
required. (For scheduled maintenance information, please refer to the “Warranty
and Services Guide/Owner's Manual Supplement/Scheduled Maintenance”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
■Cleaning method
If the filter is dirty, clean by blow-
ing compressed air through the
filter from the downward side.
Hold the air gun 2 in. (5 cm)
from the filter and blow for
approximately 2 minutes at
72 psi (500 kPa, 5.0 kgf/cm
2
or bar).
If it is not available, have the
filter cleaned by your Lexus
dealer.
■ Replacement method
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The “UP” marks shown on the
filter and the filter case should
be pointing up.

514
6-1. Specifications
■Gasoline quality standards
●Automotive manufacturers in the US, Europe and Japan have developed a
specification for fuel quality called World-Wide Fuel Charter (WWFC) that is
expected to be applied worldwide.
●The WWFC consists of four categories that are based on required emission
levels. In the US, category 4 has been adopted.
●The WWFC improves air quality by lowering emissions in vehicle fleets, and
customer satisfaction th rough better performance.
■Lexus recommends the use of gasoline containing detergent additives
●Lexus recommends the use of gasoline that contains detergent additives to
avoid build-up of engine deposits.
●All gasoline sold in the US contains de tergent additives to clean and/or keep
clean intake systems.
■Lexus recommends the use of cleaner burning gasoline
Cleaner burning gasoline, including reform ulated gasoline that contains oxygen-
ates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in many
areas.
Lexus recommends the use of cleaner burning gasoline and appropriately blended
reformulated gasoline. These types of gasoline provide excellent vehicle perfor-
mance, reduce vehicle emissions and improve air quality.
■Lexus does not recommend blended gasoline
●Lexus allows the use of oxygenate blended gasoline where the oxygenate con-
tent is up to 10% ethanol or 15% MTBE.
●If you use gasohol in your Lexus, be sure that it has an octane rating no lower
than 87.
●Lexus DOES NOT recommend the use of gasoline containing methanol.
■Lexus does not recommend gasoline containing MMT
Some gasoline contains oc tane enhancing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus DOES NOT recommend the use of gasoline that contains MMT. If fuel con-
taining MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the inst rument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.

520
6-1. Specifications
■DOT quality grades
All passenger vehicle tires must co nform to Federal Safety Require-
ments in addition to these grades. Quality grades can be found where
applicable on the tire sidewall between tread shoulder and maximum
section width.
For example: Treadwear 200 Traction AA Temperature A
■ Treadwear
The treadwear grade is a comparative rating based on the wear rate of
the tire when tested under controll ed conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2) times as
well on the government course as a tire graded 100.
The relative performance of tires de pends upon the actual conditions of
their use, however, and may depart significantly from the norm due to varia-
tions in driving habits, service practices and differences in road characteris-
tics and climate.
■ Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and
they represent the tire's ability to stop on wet pavement as measured
under controlled condit ions on specified government test surfaces of
asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering (turning) trac-
tion.

560
Alphabetical index
Radar cruise control ............................. 169
Radiator ..................................................... 391
Radio .......................................................... 223
RDS ............................................................ 225
Rear turn signal lightsReplacing light bulbs........................ 435
Wattage....................................................512
Rear view mirror Compass ............................................... 354
Rear window defogger........................ 218
Replacing Electronic key battery........................ 417
Fuses ..........................................................419
Light bulbs............................................. 435
Reporting safety defects for U.S. owners ..........................................536
Safety connect ...................................... 358
Seat belts Adjusting the seat belt.......................... 61
Automatic locking retractor............ 62
Child restraint system installation ..............................................112
Cleaning and maintaining the seat belts ..................................... 370
Emergency locking retractor ......... 62
How to wear your seat belt............. 60
How your child should wear the seat belt .......................................... 63
Pregnant women, proper seat belt use......................... 62
Reminder light .....................................456
Seat belt extenders .............................. 63
Seat belt pretensioners ........................ 61 Seat heaters ............................................ 338
Seat position memory............................ 55
Seating capacity.................................... 203
Seats
Adjustment .............................................. 50
Adjustment precautions ................... 50
Child seats/child restraint system installation.............................. 112
Cleaning ................................................ 369
Driver’s seat position memory ........ 51
Front passenger seat position memory ................................................. 55
Head restraints ....................................... 57
Properly sitting in the seat................ 89
Seat heaters ......................................... 338
Service reminder indicators ............ 150
Shift lever If the shift lever cannot be shifted from P................................... 487
Transmission.......................................... 134
Shift lever light .........................................319
Shift lock system.................................... 487
Shopping bag hooks ........................... 345
Side airbags .................................................91
Side marker lights Switch ........................................................158
Side mirrors Adjusting and folding ............................71
Mirror position memory ..................... 51
Smart access system with push-button startEntry function ..........................................28
Starting the engine.............................. 130
“SOS” button..........................................358R
S