2010 Lexus IS250 park assist

486
5-2. Steps to take in an emergency
(Flashing)
(If equipped)
Indicates that the pre-
collision system is not
currently functional.
Clean the grille and the
sensor.
This message appears
when the pre-collision
system is hot. In this case,
wait until the system
cools down.
(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.
Wa r n i n g m e s s a g eDetailsCorrection procedure

5
When trouble arises
499
5-2. Steps to take in an emergency
CAUTION
■When using the spare tire
●Remember that your compact spare tire is specifically designed for use with your
vehicle. Do not use your compact spare tire on another vehicle.
●Do not use two compact spare tires simultaneously.
●Replace the compact spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, deceleration and braking, as well as sharp cornering.
■Speed limit when using the spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact spare tire is
installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failing to observe
this precaution may lead to an accident causing death or serious injury.
■When the spare tire is attached
The vehicle speed may not be correctly detected, and the following systems may
not operate correctly:
●ABS & brake assist
●VSC
●TRAC
●EPS
●VDIM
●Navigation system (if equipped)
●Intuitive parking assist (if equipped)
●Dynamic radar cruise control (if equipped)
●Cruise control (if equipped)
●PCS (if equipped)
●AFS (if equipped)
Also, not only can the following system not be utilized fully, it may actually negatively
effect the drive-train components:
●AWD system (if equipped)

554
6-2. Customization
ItemFunctionDefault settingCustomized
setting
Windshield
wipers and
washer
(
P. 1 6 9 )
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. 1 9 0 )
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)
Illumination
(
P. 3 2 9 )
Time elapsed before lights
turn off15 seconds7. 5 s e c o n d s
30 seconds
Operation when the
doors are unlockedOnOff
Operation after the
“ENGINE START STOP”
switch is turned OFF
OnOff
Front footwell lightsOnOff
Shift lever lightOnOff
Outer foot lightOnOff
Seat belt
reminder
(
P. 4 7 3 )
Vehicle speed linked seat
belt reminder buzzerOnOff

565
Alphabetical index
Brake
Fluid ..........................................................408
Parking brake ........................................148
Brake assist ............................................... 196
Care
Exterior ................................................... 382
Interior.....................................................385
Seat belts ............................................... 386
Cargo capacity ..................................... 206
Cargo hooks .......................................... 360
CD changer ............................................. 241
CD player.................................................. 241
Chains ......................................................... 210
Child restraint system
Booster seats, definition...................109
Booster seats, installation ..................116
Convertible seats, definition ..........109
Convertible seats, installation .........116
Front passenger occupant
classification system .......................104
Infant seats, definition ........................109
Infant seats, installation........................116
Installing CRS with LATCH
anchors ................................................... 114
Installing CRS with seat belts ..........116
Installing CRS with top straps .........119Child safety
Airbag precautions ..............................99
Battery precautions ................... 412, 511
Child restraint system ....................... 109
Child-protectors ................................... 44
How your child should wear
the seat belt ..........................................65
Installing child restraints..................... 113
Moon roof precautions...................... 82
Power window lock switch .............. 76
Power window precautions ............ 78
Removed electronic key
battery precautions .......................435
Seat belt comfort guide ..................... 63
Seat belt extender precautions...... 67
Seat belt precautions ..........................66
Seat heater precautions..... 350, 353
Trunk precautions................................. 49
Child-protectors ...................................... 44
Cigarette lighter.................................... 346
Cleaning
Exterior....................................................382
Interior .................................................... 385
Seat belts ............................................... 386
Clock .......................................................... 341
Coat hooks ............................................. 358
Compass ..................................................369
Condenser ............................................. 408
Console box ........................................... 334
Cooling system
Engine overheating............................ 512
Cornering assist sensors .................... 190
C

570
Alphabetical index
Parking assist sensors .......................... 190
Parking brake .......................................... 148
Parking lights
Replacing light bulbs........................ 452
Switch ....................................................... 165
Wattage.................................................. 534
PCS ............................................................202
Personal lights
Switch ........................................................331
Power outlet............................................ 347
Power windows ........................................ 76
Pre-collision system.............................202
Radar cruise control ............................. 179
Radiator ................................................... 408
Radio ..........................................................233
RDS ............................................................235
Rear sunshade .......................................355
Rear turn signal lights
Replacing light bulbs........................ 452
Wattage.................................................. 534
Rear view mirror
Compass ...............................................369
Rear window defogger.......................228
Replacing
Electronic key battery...................... 434
Fuses ........................................................ 436
Light bulbs............................................. 452
Reporting safety defects for
U.S. owners ......................................... 558Safety Connect ..................................... 373
Scuff lights................................................ 329
Seat belts
Adjusting the seat belt ........................63
Automatic locking retractor ............64
Child restraint system
installation .............................................. 113
Cleaning and maintaining
the seat belts .................................... 386
Emergency locking retractor..........64
How to wear your seat belt ............. 62
How your child should wear
the seat belt.......................................... 65
Pregnant women,
proper seat belt use .........................64
Reminder light......................................473
Seat belt extenders.............................. 65
Seat belt pretensioners ......................63
Seat heaters ..................................348, 351
Seat position memory............................ 57
Seat ventilators ....................................... 351
Seating capacity.................................... 209
Seats
Adjustment ................................................ 51
Adjustment precautions ....................52
Child seats/child restraint
system installation.............................. 113
Cleaning ................................................ 385
Driver’s seat position memory .......53
Front passenger seat position
memory .................................................. 57
Head restraint ........................................ 59
Properly sitting in the seat.................. 91
Seat heaters ...............................348, 351
Ventilated seats.................................... 351
Service reminder indicators .............157P
R
S

573
Alphabetical index
Warning buzzers
Brake system ......................................... 471
Open door ...........................................473
Seat belt reminder .............................473
Warning lights
Anti-lock brake system ...................472
Brake assist system ...........................472
Brake system ......................................... 471
Charging system ................................472
Electric power steering
warning light ......................................472
Low fuel level........................................473
Malfunction indicator lamp ...........472
Master warning light .........................473
Open door ............................................473
Pre-collision system ..........................472
Pretensioners .......................................472
Seat belt reminder light ...................473
SRS airbags ...........................................472
Tire pressure warning
light.........................................................473
Warning messages
AWD system .........................................481
Dynamic radar
cruise control ........................ 481, 483
Engine oil level .................................... 483
Engine oil maintenance.................. 483
Engine oil pressure...........................480
Hood ....................................................... 483
Intuitive parking assist .......... 481, 483
Moon roof ............................................. 483
Open door ........................................... 483
Parking brake ...................................... 483
Pre-collision system .............. 481, 483Smart access system with
push-button start ........................... 488
Steering lock.......................................... 481
Tire pressure
warning system.....................481, 483
Trunk ....................................................... 483
Washer fluid ........................................ 483
Washer
Checking ................................................ 413
Preparing and checking
before winter ..................................... 210
Switch........................................................ 169
Washing and waxing ...........................382
Weight
Cargo capacity .................................. 206
Load limits ............................................ 209
Weight.................................................... 520
Wheels ...................................................... 429
Window glasses ...................................... 76
Window lock switch ............................... 76
Windows
Power windows ..................................... 76
Rear window defogger...................228
Washer .................................................... 169
Windshield wipers................................. 169
Windshield wiper de-icer.................. 229
Wireless remote control key
Replacing the battery.......................434
WMA disc ...............................................248W