233
2-4. Using other driving systems
2
When driving
IS250/220d/200d_EE
When a billboard or other metallic structure appears to be in the vehi-
cle’s direct line of travel due to driving on a hill.
When an extreme change in vehicle height occurs
When the axis of the radar is out of adjustment
When passing through certain toll gates
When driving on a bridge.
When the system is activated in the situations described above there is also a
possibility that the seat belts will retract quickly and the brakes will be
applied with a force greater than normal. When the seat belt is locked in the
retracted position, stop the vehicle in a safe place, release the seat belt and
refasten.
Situations in which the pre-crash safety system does not function properly
The system may not function effectively in situations such as the following:
On roads with sharp bends or uneven surfaces
If a vehicle suddenly moves in front of your vehicle, such as at an inter-
section
If a vehicle suddenly cuts in front of your vehicle, such as when overtak-
ing
In inclement weather such as heavy rain, fog, snow or sand storms
When your vehicle is skidding with the VSC system off
When an extreme change in vehicle height occurs
When the axis of the radar is out of adjustment
Automatic cancelation of the pre-crash safety system
When a malfunction occurs due to sensor contamination, etc. that results in
the sensors being unable to detect obstacles, the pre-crash safety system will
be automatically disabled. In this case, the system will not activate even if
there is a collision possibility.
480
5-2. Steps to take in an emergency
IS250/220d/200d_EE
(If equipped)
Indicates that Lexus
parking assist-sensor is
dirty or covered with
ice.
Clean the sensor.
(Flashing)
(If equipped)
Indicates that the
dynamic radar cruise
control sensor is dirty or
covered with ice.
Clean the sensor.
(Flashing and then
continuously on)
(Flashing)
(If equipped)
Indicates that the
dynamic radar cruise
control system is unable
to judge vehicle-to-
vehicle distance.
• Switch the driving
mode to either the nor-
mal or power mode.
• If the windshield wip-
ers 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 vehi-
cle ahead (in dynamic
radar cruise mode).
Slow the vehicle by
applying the brakes.
Warning messageDetailsCorrection procedure
498
5-2. Steps to take in an emergency
IS250/220d/200d_EE
CAUTION
When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly:
ABS & Brake assist
VSC
TRC
EPS
VDIM
Navigation system (if equipped)
Lexus parking assist-sensor (if equipped)
Dynamic radar cruise control (if equipped)
Cruise control (if equipped)
PCS (if equipped)
NOTICE
Do not drive the vehicle with a flat tire.
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the
wheel beyond repair.
Be careful when driving over bumps with the compact spare tire installed on
the vehicle.
The vehicle becomes lower when driving with the compact spare tire com-
pared to when driving with standard tires. Be careful when driving over
uneven road surfaces.
Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving per-
formance.
564
Alphabetical index
IS250/220d/200d_EE
Back-up lights
Replacing light bulbs ............453
Wattage .................................552
Battery
Checking ...............................415
If the vehicle has a discharged
battery.................................524
Preparing and checking before
winter .................................239
Bluetooth
® audio* .....................308
Bluetooth® phone* ....................323
Bottle holders ............................360
Brake
Parking brake ........................171
Brake assist................................224
Care
Exterior .................................388
Interior ..................................392
Seat belts...............................393
Cargo hooks ..............................384
CD changer*..............................273
CD player* ................................273
Chains ........................................239
Child restraint system
Baby seats, definition ...........121
Baby seats, installation .........130
Child seats, definition ...........121
Child seats, installation.........130
Installing CRS with ISOFIX
rigid anchor ........................134
Installing CRS with seat belts ....
131
Installing CRS with top straps ....
134Junior seats, definition ......... 121
Junior seats, installation....... 130
Child safety
Airbag precautions............... 116
Battery precautions ...... 419, 527
Child restraint system .......... 121
Child-protectors ..................... 59
How your child should wear
the seat belt.......................... 77
Installing child restraints ..... 130
Moon roof precautions........... 92
Power window lock switch .... 85
Power window precautions.... 88
Removed electronic key battery
precautions ........................ 436
Seat belt comfort guide .......... 75
Seat belt precautions .............. 77
Seat heater precautions 373, 376
Trunk precautions .................. 65
Child-protectors .......................... 59
Cigarette lighter ........................ 369
Cleaning
Exterior ................................ 388
Interior ................................. 392
Seat belts .............................. 393
Clock ........................................ 364
Coat hooks ................................ 381
Condenser ................................. 415
Console box .............................. 356
Cooling system
Engine overheating .............. 528
Cornering assist sensors ........... 217
B
C
569
Alphabetical index
IS250/220d/200d_EE
Parking assist sensors ................217
Parking brake ............................171
PCS ............................................230
Personal lights
Switch ...................................354
Pollen removal mode*...............258
Power heater ..............................263
Power outlet ..............................370
Power windows ...........................85
Pre-crash safety system .............230
Radar cruise control ..................202
Radiator .....................................415
Radio* .......................................269
RDS* .........................................270
Rear fog lights
Replacing light bulbs ............453
Switch ...................................190
Wattage .................................552
Rear sunshade............................378
Rear turn signal lights
Replacing light bulbs ............453
Wattage .................................552
Rear window defogger* ............265
Replacing
Electronic key battery ...........434
Fuses .....................................438
Light bulbs ............................453Scuff lights ............................... 351
Seat belts
Adjusting the seat belt ........... 74
Child restraint system
installation ......................... 130
Cleaning and maintaining
the seat belts ...................... 393
Emergency locking retractor . 76
How to wear your seat belt .... 74
How your child should wear
the seat belt.......................... 77
Pregnant women, proper seat
belt use ................................ 76
Reminder light ..................... 470
Seat belt pretensioners ........... 75
Seat heaters ....................... 371, 374
Seat ventilators ......................... 374
Seats
Adjustment............................. 63
Adjustment precautions ......... 65
Child seats/child restraint
system installation ............. 130
Cleaning ............................... 392
Driving position memory....... 66
Head restraint......................... 71
Properly sitting in the seat ... 108
Seat heaters .................. 371, 374
Ventilated seats .................... 374P
R
S
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
572
Alphabetical index
IS250/220d/200d_EE
Warning buzzers
Brake system ........................467
Open door ............................470
Seat belt reminder .................470
Warning lights
Anti-lock brake system .........468
Brake assist system...............468
Brake system ........................467
Charging system ...................468
Electric power steering warning
light ....................................468
Electronic engine control
system.................................468
Fuel filter warning light........468
Low fuel level .......................470
Malfunction indicator lamp ..468
Master warning light ............470
Open door .............................470
Pre-crash safety system ........468
Pretensioners ........................468
Seat belt reminder light ........470
SRS airbags ..........................468Warning messages
Dynamic radar cruise
control ....................... 475, 477
Engine oil level .................... 477
Engine oil maintenance ....... 477
Engine oil pressure .............. 475
Hood .................................... 477
Lexus parking assist
sensor......................... 475, 477
Moon roof ............................ 477
Open door ............................ 477
Parking brake ....................... 477
Pre-crash safety system 475, 477
Smart entry & start system .. 482
Steering lock ........................ 475
Trunk ................................... 477
Washer fluid ........................ 477
Washer
Checking .............................. 420
Preparing and checking
before winter ..................... 239
Switch .................................. 191
Washing and waxing ................ 388
Weight ...................................... 534
Wheels ...................................... 428
Window glasses ......................... 85
Window lock switch ................... 85
Windows
Power windows...................... 85
Rear window defogger......... 265
Washer ................................. 191W