2015 Lexus IS250 Brake

562What to do if... (Troubleshooting)
IS350/250_U (OM53C50U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( →P. 4 6 7 )
●The parking brake indicator is on
Is the parking brake released? ( →P. 1 7 2 )
Depending on the situation, other type s of warning buzzer may also sound.
( → P. 4 6 6 , 4 7 2 )

●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( →P. 7 1 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside th e vehicle or the moon roof opened?
Check the message on the multi-information display. ( →P. 4 7 2 )
●When a warning light turns on or a warning message is displayed, refer to
P. 466, 472. A warning buzzer sounds during driving
An alarm is activate
d and the horn sounds
A warning buzzer sounds wh en leaving the vehicle
A warning light turns on or a warning message is displayed

564
IS350/250_U (OM53C50U)Alphabetical index
Alphabetical index
A/C ............................................................358
Air conditioning filter........................ 437
Automatic air conditioning system ................................................. 358
AAC disc ................................................. 295
ABS (Anti-lock Brake System)....... 240 Function ..................................................240
Warning light ...................................... 466
Accent color..............................................88
Adaptive Variable Suspension system .............................241
Air conditioning filter .......................... 437
Air conditioning system .....................358 Air conditioning filter........................ 437
Automatic air conditioning system ................................................. 358 Airbags .........................................................36
Airbag operating conditions .......... 44
Airbag precautions for your child ....................................... 39
Correct driving posture .................... 28
Curtain shield airbag operating conditions ....................... 44
Curtain shield airbag
precautions ............................................ 41
Front passenger occupant
classification system..........................47
General airbag precautions ........... 39
Locations of airbags............................ 36
Modification and disposal
of airbags............................................... 43
Side airbag operating
conditions ............................................. 44
Side airbag precautions .................... 39
Side and curtain shield airbags operating conditions ....................... 44
Side and curtain shield airbags precautions ......................... 39
SRS airbags ............................................. 36
SRS warning light .............................. 466
A

565Alphabetical index
IS350/250_U (OM53C50U)
Alarm .............................................................. 71
Anchor brackets ...................................... 58
Antennas (smart access system with push-button start) ....................... 114
Anti-lock Brake System (ABS)....... 240 Function ..................................................240
Warning light ...................................... 466
Approach warning (dynamic
radar cruise control) ......................... 201
Armrest .................................................... 379
Assist grip ................................................. 381
Audio input...............................................274
Audio system.......................................... 266 Audio input............................................ 274
AUX port/USB port........................ 274
Bluetooth
® audio.................................317
CD player ..............................................295
iPod ............................................................ 301
MP3/WMA/AAC disc .................295
Optimal use ..........................................282
Portable music player ..................... 308
Radio ....................................................... 289
Steering wheel audio switch .......... 271
USB memory ...................................... 304 Automatic headlight leveling
system...................................................... 174
Warning light ....................................... 467
Automatic High Beam ......................... 176
Automatic light control system...................................................... 173
Automatic transmission....................... 164 If the shift lever
cannot be shifted from P ............498
M mode .................................................... 167
Paddle shift switches..........................166
AUX port ................................................. 274
Average fuel economy ..........................87
Average vehicle speed..........................87

566Alphabetical index
IS350/250_U (OM53C50U)
Back-up lightsReplacing light bulbs ......................... 451
Wattage ................................................... 521
Battery....................................................... 420 Battery checking ................................420
If the vehicle battery is discharged.................................... 502
Preparing and checking before winter ................................................... 260
Warning light ...................................... 466
Bluetooth
®
Audio system .........................................317
Hands-free system
(for cellular phone) ......................... 319
Bottle holders......................................... 372
Brake Fluid............................................................ 419
Parking brake.........................................172
Warning light ...................................... 466
Brake assist ............................................. 240
Break-in tips.............................................. 147
Brightness control Instrument panel light control .........84
BSM (Blind Spot Monitor)................ 252 Care................................................ 396, 399
Aluminum wheels .............................. 397
Exterior ...................................................396
Interior ..................................................... 399
Seat belts............................................... 400
Cargo capacity ....................................... 156
Cargo hooks ...........................................374
CD player................................................ 295
Chains ......................................................... 261
Child restraint system ............................54 Booster seats, definition .................... 55
Booster seats, installation ................. 64
Convertible seats, definition ........... 55
Convertible seats, installation........... 61
Front passenger occupant
classification system..........................47
Infant seats, definition.......................... 55
Infant seats, installation......................... 61
Installing CRS
with LATCH anchors ..................... 59
Installing CRS with seat belts ........... 61
Installing CRS with top tether strap......................... 65
BC

570Alphabetical index
IS350/250_U (OM53C50U)
Emergency flashers ............................. 456
Engine .........................................................514ACCESSORY mode....................... 160
Compartment ....................................... 413
Engine switch ........................................ 159
Hood ........................................................... 411
How to start the engine ................... 159
Identification number ........................ 513
If the engine will not start............... 496
Ignition switch (engine switch)..... 159
Overheating ........................................ 506
Engine coolant......................................... 417
Capacity .................................................. 516
Checking..................................................417
Preparing and checking before winter ................................... 260
Engine coolant temperature gauge ..........................................................81
Engine immobilizer system ................. 69
Engine oil ...................................................414 Capacity .................................................. 514
Checking................................................. 414
Preparing and checking before winter ................................... 260
Engine switch .......................................... 159
Enhanced VSC ..................................... 240
EPS (Electronic Power Steering) ..........241
Function ....................................................241
Warning light ....................................... 467
Event data recorder (EDR) ...................10 First-aid kit storage belt......................374
Flat tire ...................................................... 486
Floor mats....................................................26
Fluid
Automatic transmission.................... 517
Brake......................................................... 518
Washer ................................................... 422
Fog lights..................................................... 181 Replacing light bulbs ....................... 452
Switch ......................................................... 181
Wattage ...................................................521
Footwell light .......................................... 368 Wattage ...................................................521
Front passenger occupant classification system ............................ 47
Front personal lights ........................... 369 Wattage ...................................................521
Front seats................................................. 120 Adjustment..............................................120
Cleaning................................................. 399
Correct driving posture .................... 28
Driving position memory................. 123
Head restraints .....................................128
Power easy access system ............. 123
Seat heaters .......................................... 367
Seat position memory ....................... 123
Seat ventilators.................................... 367F

575Alphabetical index
IS350/250_U (OM53C50U)
Odometer ....................................................81
OilEngine oil................................................. 514
Front differential oil............................. 517
Rear differential oil .............................. 517
Opener Hood ........................................................... 411
Trunk ......................................................... 109
Outer foot lights
Location ................................................. 368
Replacing light bulbs ........................452
Wattage ................................................... 521
Outside rear view mirrors ................. 135
Adjusting and folding........................ 135
Blind spot monitor ............................. 252
Linked mirror function when reversing ................................. 136
Mirror position memory ...................123
Outside rear view mirror defoggers ............................362
Outside temperature...............................81
Overheating, Engine .......................... 506 Paddle shift switches............................. 166
Parking assist sensors
(intuitive parking assist).................... 214
Parking brake .......................................... 172
Parking lights ........................................... 173 Light switch............................................. 173
Replacing light bulbs ....................... 452
PCS (Pre-Collision System).............246 Function .................................................. 246
PCS OFF switch .................................247
Warning light ....................................... 467
Personal lights ....................................... 369 Wattage ...................................................521
Pop-up display ......................................... 88
Power easy access system ................. 123
Power outlet ........................................... 378
Power steering (Electric power steering system) .................................. 241Warning light ....................................... 467
Power windows.......................................138 Door lock linked
window operation ...........................140
Jam protection function....................139
Operation............................................... 138
Window lock switch ......................... 138
Pre-Collision System (PCS).............246 Function .................................................. 246
PCS OFF switch .................................247
Warning light ....................................... 467
OP
*: For vehicles with a navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.

582Alphabetical index
IS350/250_U (OM53C50U)
Units .............................................................. 88
USB device ..................................304, 347Connecting ........................................... 274
USB audio ............................................ 304
USB photo ............................................ 347
USB port ...................................................274
Vanity lights Vanity lights .......................................... 377
Wattage ................................................... 521
Vanity mirrors .........................................377
Variable Gear Ratio Steering (VGRS) ................................................. 240
VDIM (Vehicle Dynamics
Integrated Management) ................241
Vehicle data recordings .......................... 9
Vehicle Dynamics Integrated Management (VDIM) .......................241
Vehicle identification number.......... 513
Vehicle Stability Control (VSC) ..................................................... 240
Ventilators (seat ventilators)............ 367
VGRS (Variable Gear Ratio Steering) ............................................... 240
Voice command system ....................350
VSC (Vehicle Stability Control) ............ 240 Warning buzzers
Brake system ....................................... 466
Downshifting ......................................... 168
Key reminder ....................................... 483
Open door ........................................... 467
Open moon roof ................................477
Open hood........................................... 474
Open trunk ........................................... 474
Open window ......................................477
Seat belt reminder............................. 467
Warning lights ........................................... 77
ABS .......................................................... 466
Automatic headlight leveling system .................................................. 467
Brake system ....................................... 466
Charging system ............................... 466
Electric power steering .................. 467
Low fuel level ....................................... 467
Malfunction indicator lamp...........466
Master warning light ........................ 467
Open door ........................................... 467
Pre-collision system ......................... 467
Seat belt reminder light .................. 467
Slip indicator ........................................ 467
SRS............................................................ 466
Tire pressure ........................................468
Warning messages............................... 472
Warning reflector storage belt .......376
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