Page 407 of 588

4077-1. Maintenance and care
7
Maintenance and care
IS250_EE(OM53C51E)
NOTICE
■To prevent paint deterioration and corrosion on the body and components (aluminum
wheels etc.)
●Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the paint surface
• After driving in an area contaminated with soot, oily smoke, mine dust, iron pow-
der or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
●To prevent the wheels from corroding, remove any dirt and store in a place with low
humidity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic substances or scrub with a hard brush.
This may damage the surfaces of the lights.
●Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
■When using an automatic car wash (vehicles with rain-sensing windshield wipers)
Set the wipers to the intermittent windshield wipers. (→P. 2 1 8 )
If AUTO mode is selected, the wipers may operate and the wiper blades may be dam-
aged.
Page 486 of 588

4868-2. Steps to take in an emergency
IS250_EE(OM53C51E)
(If equipped)
Indicates that the radar sensor is dirty or covered with
ice
A buzzer also sounds.
→Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control system is
unable to judge vehicle-to-vehicle distance
A buzzer also sounds.
→Tu r n o f f s n o w m o d e .
If the windshield wipers are on, turn them off or set
them to a mode other than AUTO or high speed
wiper operation.
(If equipped)
Indicates that the LDA (Lane Departure Alert) system is
suspended (The camera sensor temperature is higher
than the operation temperature range)
A buzzer also sounds.
→Restart the LDA after driving for a while.
(If equipped)
Indicates that a Blind Spot Monitor sensor or the sur-
rounding area on the bumper is dirty or covered with ice
A buzzer also sounds.
→Clean the sensor and its surrounding area on the
bumper.
(If equipped)
Indicates a malfunction in:
• The cruise control system; or
• The dynamic radar cruise control system
Press the “ON/OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
A buzzer also sounds.
→Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
(If equipped)
Indicates a malfunction in the LDA (Lane Departure
Alert) system
A buzzer also sounds.
→Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and
equipped professional.
Wa r n i n g m e s s a g eDetails/Actions
Page 581 of 588

581Alphabetical index
IS250_EE(OM53C51E)
Sensor
Automatic headlight system......... 207
Automatic High Beam system...... 212
Inside rear view mirror......................162
Intrusion sensor and tilt sensor ...... 86
LDA (Lane Departure Alert).........241
Lexus parking assist-sensor ......... 247
Radar sensor ................ 236, 272, 282
Rain-sensing windshield
wipers.....................................................219
Service reminder indicators................90
Shift lever....................................................197
Automatic transmission ....................197
If the shift lever cannot be
shifted from P ................................... 523
Shift lock system .................................... 523
Shift position and gear position.......... 95
Side airbags..................................................41Side mirrors ..............................................163
Adjusting and folding ........................ 163
BSM (Blind Spot Monitor) ........... 278
Linked mirror function when
reversing ..............................................165
Mirror position memory ....................151
Side turn signal lights .......................... 203
Replacing light bulbs ......................... 461
Turn signal lever................................. 203
Slip indicator............................................477
Smart entry & start system ................ 130
Antenna location .................................130
Entry functions ............................. 118, 125
Starting the engine.............................. 192
SMS (Short message service)......... 353
Snow mode .............................................. 198
Snow tires ................................................ 290
Spare tire ................................................. 496
Inflation pressure ............................... 546
Storage location................................. 497
Spark plug ............................................... 543
Specifications ......................................... 538
Speech command system ................ 373
Page 583 of 588

583Alphabetical index
IS250_EE(OM53C51E)
Power window switches ..................167
Rear sunshade switch..................... 400
Rear window and outside rear
view mirror defoggers
switch....................................................382
Seat heater switches ....................... 388
Seat ventilator switches ................. 388
Snow mode switch ............................ 198
Talk switch .............................................356
Telephone switches..........................356
Tilt and telescopic steering
control switch .................................... 159
Tire pressure warning reset
switch.................................................... 429
Trunk opener switch ..........................125
Trunk opener main switch ..............126
Vehicle-to-vehicle distance
button ................................................... 232
VSC OFF switch ............................... 267
Window lock switch........................... 167
Windshield wiper de-icer
switch....................................................383
Windshield wipers
and washer switch ...........................215Tachometer ............................................... 95
Tail lights................................................... 206
Light switch........................................... 206
Replacing light bulbs ......................... 461
Talk switch ............................................... 356
Telephone switches ............................. 356
Theft deterrent system
Alarm .......................................................... 83
Double locking system...................... 82
Engine immobilizer system .............. 77
Intrusion sensor and tilt sensor...... 86
Tire inflation pressure ......................... 436
Maintenance data ............................. 546
Tire inflation pressure display
function ............................................... 428
Warning light....................................... 478T
Page 587 of 588

587Alphabetical index
IS250_EE(OM53C51E)
Warning messages ..............................482
Warning reflector storage belt ....... 397
Washer....................................................... 215
Checking ............................................... 426
Preparing and checking
before winter ................................... 288
Switch ........................................................215
Washing and waxing ...........................404
Weight...................................................... 538
Wheels ......................................................438
Replacing ...............................................438
Size............................................................546
Window glasses ......................................167
Window lock switch ..............................167
Windows ....................................................167
Power windows....................................167
Rear window defogger...................382
Windshield wiper de-icer................. 383
Windshield wipers................................. 215
Intermittent windshield wipers
with interval adjuster.......................215
Rain-sensing windshield
wipers..................................................... 217
Winter driving tips ............................... 288
Wireless remote control....................... 112
Battery-Saving Function ................... 131
Locking/Unlocking ...................118, 125
Replacing the battery....................... 442
WMA disc ................................................ 319
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