2012 Lexus IS250C sensor

468
4-3. Do-it-yourself maintenance
10ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, power steering, rain sensor, anti-
glare inside rear view mirror, shift lock
system, tire inflation pressure warning
system, vehicle stability control
11FR S/HTR LH15 ASeat heaters and ventilators, air condi-
tioning system
12FR DOOR LH20 APower windows, outside rear view
mirrors
13SECURITY7. 5 ASmart access system with push-button
start
14H-LP LVL7. 5 AAutomatic head light leveling system
15LH-IG10 A
Charging system, headlight cleaner,
rear window defogger, electric cool-
ing fans, emergency flashers, turn sig-
nal lights, back-up lights, stop lights,
mirror heaters, seat belt pretensioner,
intuitive parking assist, cruise control,
PTC heater, exhaust system, smart
access system with push-button start
16FR WIP30 AWindshield wipers
FuseAmpereCircuit

5
When trouble arises
499
5-2. Steps to take in an emergency
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your Lexus dealer as
soon as possible.
■Electric power steering system warning light
When the voltage is low or drops, the electric power steering system warning light
may come on.
■Front passenger detection se nsor and passenger seat belt reminder and warning
buzzer
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash and the warning buzzer to sound,
even if a passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pressing the
satellite switch does not turn off the tire pressure warning light.

506
5-2. Steps to take in an emergency
(If equipped)
Indicates intuitive parking assist malfunction.The malfunctioning assist-sensor is shown flashing on
the display.
(Flashing)
(If equipped)
Indicates a malfunction in the radar cruise control
system. Press the “ON-OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
Indicates a malfunction in the retractable hardtop
system.
MessageDetails

5
When trouble arises
511
5-2. Steps to take in an emergency
(U.S.A. only)
Indicates that all mainte-
nance according to the
driven distance on the
maintenance schedule*
should be performed
soon.
If necessary, perform
maintenance.
Comes on approximately
4500 miles (7200 km)
after the maintenance
data has been reset.
(U.S.A. only)
Indicates that all mainte-
nance is required to cor-
respond to the driven
distance on the mainte-
nance schedule*.
Perform the necessary
maintenance. Please reset
the maintenance data
after the maintenance is
performed (P. 411)
Comes on approximately
5000 miles (8000 km)
after the maintenance
data has been reset.
(The indicator will not
work properly unless the
maintenance data has
been reset.)
(Flashing)
(If equipped)
Indicates that the pre-
collision system is not
currently functional.• Clean the grille and the sensor.
• Wait until the pre-colli- sion system cools down.
MessageDetailsCorrection procedure

512
5-2. Steps to take in an emergency
(If equipped)
Indicates that intuitive
parking assist is dirty or
covered with ice.
Clean the sensor.
(Flashing)
(If equipped)
Indicates that the radar
cruise control sensor is
dirty or covered with ice.
Clean the sensor.
(Flashing and then con- tinuously on)
(Flashing)
(If equipped)Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance.
• Switch the driving mode to either the normal or
power mode.
• If the windshield wipers are on, turn them off or
set them to either the
intermittent or the slow
mode.
(Flashing)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in radar cruise
mode).
Slow the vehicle by apply-
ing the brakes.
MessageDetailsCorrection procedure

598
6-2. Customization
Pow e r w i n -
dows
(
P. 8 2 )
Wireless remote control
linked operationOffOn
Retractable
hardtop
(
P. 9 0 )
Retractable hardtop
operation control linked
to the intuitive parking
assist
OnOff
Automatic
light control
system
(
P. 181)
Light sensor sensitivityLevel 3Level 1 to 5
Ti m e e l a p s e d b e f o r e
headlights automatically
turn off after doors are
closed
30 seconds
0 seconds
60 seconds
90 seconds
Lights
(
P. 1 8 3 )
Daytime running light sys-
tem (U.S.A. only)OnOff
Windshield
wipers and
washer
(
P. 1 8 7 )
Switching operation when
the vehicle is stationaryOnOff
Drip prevention functionOnOff
Time elapsed before the
drip prevention function
operatesVa r i a b l e
depending on
the vehicle
speed
3 seconds
Intuitive park-
ing assist
(
P. 2 1 3 )
Back sensor operation
display and buzzerOnOff
Buzzer volumeLevel 3Level 1 to 5
Distance which a sensor
detects4.9 ft. (150 cm)2.0 ft. (60 cm)
ItemFunctionDefault settingCustomizedsetting

620
Alphabetical index
Cigarette lighter.................................... 375
CleaningExterior ................................................... 402
Interior ..................................................... 407
Seat belts............................................... 408
Clock .........................................................370
Compass ................................................. 390
Condenser ............................................... 431
Console box ...........................................363
Cooling system Engine overheating .......................... 542
Cornering assist sensors .................... 213
Cruise control Cruise control ...................................... 195
Dynamic radar cruise control .......199
Cup holder .............................................. 364
Customizable features .......................595 Daytime running light system ........... 183
Defogger*
Rear window ........................................257
Side mirror.............................................257
Dimension ............................................... 560
Dinghy towing............................. 243, 244
Display Dynamic radar cruise control ....... 199
Satellite switch mode......................... 371
Trip information.....................................177
Warning message ............................ 504
Do-it-yourself maintenance ...............416
Door courtesy lights Door courtesy lights ........................ 359
Wattage ..................................................577
Doors Door lock .................................32, 44, 47
Door windows ........................................82
Side mirrors.............................................. 79
Driver's seat belt reminder light ..... 497
Driving Correct posture................................... 104
Procedures............................................. 138
Driving position memory........................ 61D

625
Alphabetical index
Odometer ................................................. 166
OilEngine oil ............................................... 426
Opener Fuel filler door ........................................ 95
Hood ......................................................... 419
Trunk ............................................................. 51
Outer foot lights Outer foot lights................................. 359
Wattage ..................................................577
Outside rear view mirrors Adjusting and folding ..........................79
Mirror position memory ..................... 61
Outside temperature display ............ 177
Overheating, Engine ...........................542 Parking assist sensors* ........................ 213
Parking brake .......................................... 163
Parking lights
Replacing light bulbs ........................ 475
Switch.......................................................... 181
Wattage .................................................. 577
PCS ............................................................ 227
Personal lights Switch...................................................... 360
Power outlet............................................ 376
Power windows ........................................ 82
Pre-collision system............................. 227
Radar cruise control ............................. 199
Radiator ..................................................... 431
Radio*........................................................ 262
RDS* .......................................................... 264
Rear turn signal lights Replacing light bulbs ........................ 475
Wattage .................................................. 577
Rear view mirror Compass............................................... 390
Rear window defogger* .................... 257
Replacing Electronic key battery ..................... 456
Fuses........................................................ 458
Light bulbs ............................................. 475
Tires ........................................................... 518
Reporting safety defects for U.S. owners ..........................................602
Retractable hardtop ...............................86OP
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
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