2014 Lexus GX460 brake sensor

GX460_OM_OM60K80U_(U)
3614-5. Using the driving support systems
4
Driving
■Automatic cancelation of pre-collision system
When a malfunction occurs due to sensor contaminations, etc. that results in the sensors
being unable to detect obstacles, the pre-collision syst em will be automatically disabled.
In this case, the system will not activate even if there is a collision possibility.
■Obstacles not detected
The system cannot detect plastic obstacles su ch as pylons. There may also be occasions
when the system cannot detect pedestrians, animals, bicycles, motorcycles, trees, or
snowdrifts.
■Conditions that may trigger the system even if there is no possibility of a collision
●When there is an object by the roadside at the entrance to a curve
●When passing an oncoming vehicle on a curve
●When driving over a narrow iron bridge
●When there is a metal object on the road surface
●When driving on an uneven road surface (nose up, nose down)
●When passing an oncoming vehicle on a left turn
●When your vehicle rapidly closes on the vehicle in front
●When a grade separation/interchange, sign, billboard, or other structure appears to be
directly in the vehicle’s line of travel
●When a billboard or other metallic structure appears to be in the direct line of travel
due to driving on a hill
●When there are excessive changes in the vehicl e height (when it tilts forwards or back-
wards)
●When the axis of the radar is out of adjustment
●When passing through certain toll gates
●When passing through an overpass
●When passing through a tunnel
When the system is activated in the situations described above, there is also a possibility
that the seat belts will retrac t quickly and the brakes will be applied with a force greater
than normal. When the seat belt is locked in the restricted position, stop the vehicle in a
safe place, release the seat belt and refasten it.
■When there is a malfunction in the system, or if the system is temporarily unusable
Warning lights and/or warning mess ages will turn on or flash. (P. 5 0 7 , 5 1 4 )

364
GX460_OM_OM60K80U_(U)4-5. Using the driving support systems
CAUTION
■When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary in any of the following situations.
●When water or snow thrown up by the surrounding vehicles hinders the functioning
of the sensor
●When your vehicle is pointing upwards (caused by a heavy load in the luggage com-
partment etc.)
●Vehicles that cut in suddenly
●Vehicles with small rear ends (tra
ilers with no load on board etc.)
●Motorcycles traveling in the same lane
■Handling the radar sensor
Observe the following to ensure the pre-collision system can function effectively:
●Keep the sensor and front grille cover clean at all times.
Clean the sensor and front grille cover with a soft cloth so you do not mark or dam-
age them.
●Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off posi tion, the system may become inaccurate or
malfunction. If the sensor or surrounding area is subject to a strong impact, always
have the area inspected and adjusted by your Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or surrounding area.
●Do not modify or paint the sensor and grille cover.

5167-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
Indicates that one or more of the doors is not fully closed
The system also indicates which doors are not fully
closed.
If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate that
the door(s) are not yet fully closed.
 Make sure that all the doors are closed.
Indicates that the glass hatch is not fully closed
If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate that
the glass hatch is not yet fully closed.
 Close the glass hatch.
(If equipped)
Indicates a malfunction in the Intuitive parking assist
All assist-sensors flash.
A buzzer also sounds.
 Have the vehicle inspected by your Lexus dealer.
(If equipped)
Indicates that a intuitive parkin g assist is dirty or covered
with ice
A buzzer also sounds.
 Clean the sensor.
(Flashes)
Indicates that the vehicle is being driven at 3 mph (5
km/h) or more with the parking brake still engaged A buzzer also sounds.
 Release the parking brake.
Wa r n i n g m e s s a g eDetails/Actions

606What to do if... (Troubleshooting)
GX460_OM_OM60K80U_(U)
●It is locked automatically to prevent theft of the vehicle. ( P. 1 8 3 )
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 1 4 2 )
●The auto power off function will be oper ated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( P. 1 8 3 )
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts?
( P. 5 0 9 )
●The parking brake indicator is on
Is the parking brake released? ( P. 1 9 1 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 5 0 7 , 5 1 4 )
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 6 8 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine. The steering wheel cannot be turned after the engine is stopped
The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds

614Alphabetical index
GX460_OM_OM60K80U_(U)
Meter ............................................................. 77Indicators................................................... 72
Instrument panel light control ......... 78
Meters......................................................... 77
Multi-information display ................. 80
Warning lights ........................................ 72
Micro dust and pollen filter ............... 381
Mirrors Inside rear view mirror ......................137
Outside rear view mirror defoggers ............................................ 381
Outside rear view mirrors .............. 139
Vanity mirrors ......................................... 411
Moon roof..................................................145 Jam protection function ................... 143
Operation ............................................... 145
MP3 disc
*
Multi-information display ..................... 80 Switching the display............................ 81
Trip information ...................................... 81
Multi-terrain Monitor ......................... 303
Multi-terrain Select.............................. 298
Navigation system
*
Odometer ................................................... 77
Off-road precautions ......................... 369
Oil Engine oil ...............................................556
Front differential oil ...........................559
Rear differential oil ............................559
Transfer.................................................. 560
Opener Back door................................................. 99
Fuel filler door........................................210
Hood........................................................450
Outside rear view mirrors .................. 139 Adjusting and folding ........................139
Blind spot monitor ............................ 347
Outside rear view mirror defoggers............................................ 381
Outside temperature display ............. 84
Overheating, Engine .......................... 548
Parking assist sensors (intuitive parking assist)...................234
Parking assist monitor ........................ 253
Parking brake ........................................... 191 Operation................................................. 191
Parking brake engaged warning buzzer ............................... 507
Personal lights ....................................... 392 Switch ...................................................... 393
Wattage .................................................563
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