service indicator Lexus IS250 2007 Basic Functions / LEXUS 2007 IS350/250 OWNER'S MANUAL (OM53578U)

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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 through 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 detergent additives to clean and/or keep
clean intake systems.
■Lexus recommends the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated 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 octane enhancing additive called MMT (Methylcy clopen-
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 instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.

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Alphabetical index
Parking lights
Replacing light bulbs ......................... 319
Switch ........................................................ 122
Wattage ................................................. 394
PCS (Pre-collision system) ................ 154
Personal lights
Switch .......................................................... 211
Micro dust and pollen removal
mode ........................................................ 174
Power outlet ............................................ 227
Power windows.........................................45
Pre-collision system (PCS) ................ 154
Radar cruise control ............................. 133
Radiator.....................................................278
Radio................................................................ 182
RDS (Radio data system)....................183
Rear sunshade....................................... 233
Rear turn signal lights
Replacing light bulbs ......................... 319
Wattage ................................................. 394
Rear view mirror
Compass ............................................... 246
Rear window defogger ........................ 178
Replacing
Electronic key battery ..................... 302
Fuses ........................................................ 304
Light bulbs .............................................. 319
Reporting safety defects for
U.S. owners ........................................... 414
Scuff lighting........................................... 209
Seat belts
Adjusting the seat belt ....................... 35
Automatic Locking Retractor
(ALR) ...................................................... 36Child restraint system
installation............................................. 80
Cleaning and maintaining
the seat belts .....................................255
Emergency Locking Retractor
(ELR) ....................................................... 36
How to wear your seat belt ............. 34
How your child should wear
the seat belt .......................................... 37
Pregnant women,
proper seat belt use ......................... 36
Reminder light ...................................... 341
Seat belt extenders .............................. 37
Seat belt pretensioners ...................... 35
Seat heaters ................................ 228, 230
Seat position memory ............................. 31
Seat ventilators ......................................230
Seating capacity ..................................... 160
Seats
Child seats/child restraint
system installation............................. 80
Cleaning ................................................. 254
Driving position memory .................. 28
Front passenger seat position
memory .................................................... 31
Head restraint ......................................... 33
Properly sitting in the seat ................ 59
Seat adjustment ..................................... 26
Seat adjustment precautions........... 27
Seat heaters ............................. 228, 230
Ventilated seats ..................................230
Service reminder indicators ...............115
Shift lever
Automatic transmission ..................... 101
If the shift lever cannot be
shifted from P ................................... 367
Manual transmission ......................... 105
R
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