service Lexus IS250 2015 Audio menu screen operation /

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IS350/250_U (OM53C50U)8-2. Steps to take in an emergency
The following may indicate a problem with your transmission. Contact your
Lexus dealer or commercial towing service before towing.
●The engine is running but the vehicle will not move.
●The vehicle makes an abnormal sound.
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or commercial towing service, using a lift-type truck or flatbed
truck.
Use a safety chain system for all towing, and abide by all state/provincial and
local laws.
Situations needs to contact dealers before towing

5239-1. Specifications
9
Vehicle specifications
IS350/250_U (OM53C50U)
■Recommendation of the use of gasoline containing detergent additives
●Lexus recommends the use of gasoline that contains detergent additives to avoid the
build-up of engine deposits.
●All gasoline sold in the U.S.A. contains minimum detergent additives to clean and/or
keep clean intake systems, per EPA’s lowest additives concentration program.
●Lexus strongly recommends the use of Top Ti er Detergent Gasoline. For more informa-
tion on Top Tier Detergent Gasoline and a list of marketers, please go to the official
website www.toptiergas.com.
■Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformul ated gasoline that contains oxygenates
such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in many areas.
Lexus recommends the use of cleaner bu rning gasoline and appropriately blended
reformulated gasoline. These types of gaso line provide excellent vehicle performance,
reduce vehicle emissions and improve air quality.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure th at it has an octane rating no lower than 87.
●Lexus does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancin g additive called MMT (Methylcyclopenta-
dienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasolin e that contains MMT. If fuel containing
MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instru ment cluster may come on. If this happens,
contact your Lexus dealer for service.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking fo r a short time while accelerating or driv-
ing uphill. This is normal and there is no need for concern.
●Use only gasoline containing up to 15% etha-
nol.
DO NOT use any flex-fuel or gasoline that
could contain more than 15% ethanol, includ-
ing from any pump labeled E30, E50, E85
(which are only some examples of fuel con-
taining more than 15% ethanol).DO NOT use gasoline con-
taining more than 15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)

5309-1. Specifications
IS350/250_U (OM53C50U)
This information has been prepared in acco rdance with regulations issued by the
National Highway Traffic Safety Administration of the U.S. Department of Trans-
portation.
It provides the purchasers and/or prospective purchasers of Lexus vehicles with
information on uniform tire quality grading.
Your Lexus dealer will help answer any questions you may have as you read this infor-
mation.
■DOT quality grades
All passenger vehicle tires must conform to Federal Safety Requirements in
addition to these grades. Quality grad es can be found where applicable on
the tire sidewall between tread shoulder and maximum section width.
For example: Treadwear 200 Traction AA Temperature A
■Tr e a d w e a r
The treadwear grade is a comparative rati ng based on the wear rate of the tire
when tested under controlled conditions on a specified government 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 depends upon the actual conditions of their use.
Performance may differ significantly from the norm due to variations in driving
habits, service practices and differences in road characteristics and climate.
■Tr a c t i o n A A , A , B , C
The traction grades, from highest to lowest, are AA, A, B and C, and they rep-
resent the tire’s ability to stop on we t pavement as measured under controlled
conditions on specified government te st 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) traction.
Uniform Tire Quality Grading

574Alphabetical index
IS350/250_U (OM53C50U)
MaintenanceDo-it-yourself maintenance......... 409
General maintenance .................... 405
Maintenance data ............................... 512
Maintenance requirements...........402
Maintenance system ..............................88
Malfunction indicator lamp .............. 466
Master warning light ........................... 467
Meter Changing the display..........................83
Indicators................................................... 78
Instrument panel light control .........84
Meters.......................................................... 81
Multi-information display ..................86
Warning lights ........................................ 77
Micro dust and pollen filter ................361
Mirrors Inside rear view mirror ..................... 133
Outside rear view mirror defoggers ...........................................362
Outside rear view mirrors .............. 135
Vanity mirrors ...................................... 377 MMS (Multimedia messaging
service)................................................... 327
Mobile Assistant .................................... 272
Moon roof ...................................................141 Door lock linked moon roof operation...................... 142
Jam protection function.................... 142
Operation..................................................141
MP3 disc ................................................. 295
Multi-information display..................... 86 Audio system-linked ........................... 86
Drive information.................................. 87
Dynamic radar cruise control .......196
LDA (Lane Departure Alert).......209
Navigation system-linked ................ 86
Settings ......................................................88
Switching the display .......................... 87
Warning message..............................472
Navigation system
*
Needle ......................................................... 88
Noise from under vehicle ........................8
M
N

577Alphabetical index
IS350/250_U (OM53C50U)
Seat belt reminder light...................... 467
Seat belts..................................................... 30Adjusting the seat belt ..........................31
Automatic Locking Retractor......... 32
Child restraint system installation ................................................61
Cleaning and maintaining the seat belt ...................................... 400
Emergency Locking Retractor ................................................ 32
How to wear your seat belt .............30
How your child should wear the seat belt .......................................... 32
Pregnant women, proper seat belt use.......................................... 33
Reminder light and buzzer ........... 467
Seat belt extender................................. 32
Seat belt pretensioners ........................31
SRS warning light.............................. 466
Seat heaters ............................................ 367
Seat position memory...........................123
Seat ventilators ...................................... 367
Seating capacity......................................156 Seats, Front ............................................... 120
Adjustment..............................................120
Adjustment precautions...................120
Child seats/child restraint system installation ............................. 58
Cleaning................................................. 399
Driving position memory................. 123
Head restraints .....................................128
Power easy access system ............. 123
Properly sitting in the seat ................ 28
Seat heaters .......................................... 367
Seat position memory ....................... 123
Seat ventilators.................................... 367
Seats, Rear ..................................................121 Fold down the seatback.....................121
Luggage security system.................. 110
Sensor Automatic headlight system .......... 174
Automatic High Beam system .... 180
Inside rear view mirror...................... 134
Intuitive parking assist........................ 214
LDA (Lane Departure Alert).......208
Radar sensor................ 203, 247, 254
Rain-sensing windshield wipers.................................................... 186
Service reminder indicators ................ 76
S
*: For vehicles with a navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.

578Alphabetical index
IS350/250_U (OM53C50U)
Shift lever ...................................................164Automatic transmission ................... 164
If the shift lever cannot be shifted from P ........... 498
Shift lock system.................................... 498
Shift position and gear position ...........81
Side airbags ............................................... 37
Side marker lights................................... 173 Light switch .............................................173
Replacing light bulbs ........................452
Side mirrors ............................................. 135 Adjusting and folding........................ 135
BSM (Blind Spot Monitor)............ 252
Linked mirror function when reversing ................................. 136
Mirror position memory ...................123
Side turn signal lights ............................170 Replacing light bulbs ........................452
Turn signal lever .................................. 170
Slip indicator........................................... 467
Smart access system with push-button start ........................ 114 Antenna location ................................... 114
Entry functions ........................... 103, 109
Starting the engine ............................. 159 SMS (Short message service) .........327
Snow mode............................................... 165
Snow tires .................................................262
Spare tire ................................................. 486
Inflation pressure..................................519
Storage location ................................. 487
Spark plug ................................................. 516
Specifications........................................... 512
Speedometer .............................................. 81
Speed indicator........................................ 88
Steering lock ............................................. 161 Column lock release .......................... 161
Steering wheel ......................................... 131 Adjustment................................................131
Audio switches ..................................... 271
Heated steering wheel ................... 366
Power easy access system ............. 123
Steering wheel position memory .............................. 123
Stop lights Replacing light bulbs ....................... 452
Storage feature ..................................... 370
Stuck If the vehicle becomes stuck....... 509
Sun visors.................................................. 377