parking sensors Lexus IS250 2009 Using the audio system / LEXUS 2009 IS350/250 OWNER'S MANUAL (OM53669U)

180
2-4. Using other driving systems
Intuitive parking assist
The distance to obstacles measured by the sensors is communicated via
the multi-information display and a buzzer when parallel parking or
maneuvering into a garage. Always check the surrounding area when
using this system.
With navigation system
For vehicles equipped with a navigation system, refer to the separate “Navi-
gation System Owner’s Manual” for further details.
Without navigation system
■ Types of sensors
Front corner sensors
Rear corner sensors
Back sensors
■ Multi-information display ( P. 151)
Front corner sensor opera-
tion
Rear corner sensor operation
Back sensor operation

: If equipped

184
2-4. Using other driving systems
■Sensor detection information
●Certain vehicle conditions and the surrounding environment may affect the
ability of the sensor to correctly detect obstacles. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on the sensor.
• The sensor is frozen.
• The sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,
air brakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather
In addition to the examples above, there are instances in which, because of their
shapes, signs and other object s may be judged by the sensor to be closer than they
are.
●The shape of the obstacle may prevent th e sensor from detecting it. Pay particu-
lar attention to the following obstacles.
• Wires, fences, ropes etc.
• Cotton, snow and other materials that absorb radio waves
• Sharply-angled objects
•Low obstacles
• Tall obstacles with upper sections projec ting outwards in the direction of your
vehicle
■When the display flashes an d a message is displayed
 P. 3 9 2

482
Alphabetical index
Parking assist sensors ..........................180
Parking brake .......................................... 140
Parking lightsReplacing light bulbs........................ 363
Switch ....................................................... 156
Wattage.................................................. 445
PCS ............................................................. 192
Personal lights Switch ...................................................... 249
Power outlet............................................265
Power windows ........................................ 69
Pre-collision system.............................. 192
Radar cruise control ............................. 170
Radiator ..................................................... 319
Radio .......................................................... 222
RDS ............................................................ 223
Rear sunshade ....................................... 273
Rear turn signal lights Replacing light bulbs........................ 363
Wattage.................................................. 445
Rear view mirror Compass ............................................... 287
Rear window defogger........................ 218
Replacing Electronic key battery...................... 345
Fuses ........................................................ 347
Light bulbs............................................. 363
Reporting safety defects for U.S. owners .......................................... 470 Scuff lighting ............................................247
Seat belts
Adjusting the seat belt ........................ 57
Automatic locking retractor ........... 58
Child restraint system installation ............................................ 104
Cleaning and maintaining the seat belts .................................... 296
Emergency locking retractor......... 58
How to wear your seat belt ............ 56
How your child should wear the seat belt.......................................... 59
Pregnant women, proper seat belt use ........................ 58
Reminder light..................................... 385
Seat belt extenders.............................. 59
Seat belt pretensioners ...................... 57
Seat heaters ................................. 266, 269
Seat position memory............................ 52
Seat ventilators ...................................... 269
Seating capacity......................................199
Seats Adjustment ...............................................46
Adjustment precautions .................... 47
Child seats/child restraint system installation............................ 104
Cleaning ................................................ 295
Driver’s seat position memory ...... 48
Front passenger seat position memory ..................................................52
Head restraint .........................................54
Properly sitting in the seat.................82
Seat heaters ............................. 266, 269
Ventilated seats.................................. 269
Service reminder indicators ............ 148P
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