2014 Lexus GX460 sensor

GX 460 _O M_ OM6 0K 80 U_ (U)
3514-5. Using the driving support systems
4
Driving
CAUTION
■Handling the radar sensor
One Blind Spot Monitor sensor is installed inside the left and right side of the vehicle
rear bumper respectively. Observe the following to ensure the Blind Spot Monitor can
function correctly.
●Do not subject the sensor or surrounding ar ea on the bumper to a strong impact. If
the sensor moves even slightly off positi on, the system may malfunction and vehicles
that enter the detection area may not be detected. If the sensor or surrounding area is
subject to a strong impact, always have the area inspected by your Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor or surrounding area on the
bumper.
●Do not modify the sensor or surrounding area on the bumper.
●Do not paint the sensor or surrounding area on the bumper.
●Keep the sensor and its surrounding area on
the bumper clean at all times.
GX460_OM_OM60K80U_(U).book Page 351 Wednesday, July 3, 2013 11:40 AM

352
GX 460 _O M_ OM6 0K 80 U_ (U)4-5. Using the driving support systems
The Blind Spot Monitor function uses rada
r sensors to detect vehicles that are
traveling in an adjacent lane in the area that is not reflected in the outside rear
view mirror (the blind spot), and advises the driver of the vehicles existence via
the outside rear view mirror indicator.
The areas that vehicles can be detected in are outlined below.
The range of the detection area
extends to:
Approximately 11.5 ft. (3.5 m) from
the side of the vehicle
The first 1.6 ft. (0.5 m) from the side of
the vehicle is not in the detection area
Approximately 9.8 ft. (3 m) from the
rear bumper
Approximately 3.3 ft. (1 m) forward
of the rear bumper
The Blind Spot Monitor function
The Blind Spot Monitor function detection areas
1
2
3
CAUTION
■Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking care to
observe your surroundings.
The Blind Spot Monitor function is a supplementary function which alerts the driver
that a vehicle is present in the blind spot. Do not overly rely on the Blind Spot Monitor
function. The function cannot judge if it is sa fe to change lanes, therefore over reliance
could cause an accident resulting in death or serious injury.
According to conditions, the system may not function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.
GX460_OM_OM60K80U_(U).book Page 352 Wednesday, July 3, 2013 11:40 AM

354
GX 460 _O M_ OM6 0K 80 U_ (U)4-5. Using the driving support systems
The Rear Cross Traffic Alert functions when your vehicle is in reverse. It can
detect other vehicles approaching from the right or left rear of the vehicle. It uses
radar sensors to alert the driver of the other vehicle’s existence through flashing
the outside rear view mirror indicators and sounding a buzzer.
The Rear Cross Traffic Alert function
Approaching vehicles
Detection areas
CAUTION
■Cautions regarding the use of the system
The driver is solely responsible for safe driving. Always drive safely, taking care to
observe your surroundings.
The Rear Traffic Alert function is only an assist and is not a replacement for careful driv-
ing. Driver must be careful when backing up, even when using Rear Traffic Alert func-
tion. The driver’s own visual confirmation of behind you and your vehicle is necessary
and be sure there are no pedestrians, other vehicles etc. before backing up. Failure to
do so could cause death or serious injury.
According to conditions, the system may not function correctly. Therefore the driver’s
own visual confirmation of safety is necessary.
12
GX460_OM_OM60K80U_(U).book Page 354 Wednesday, July 3, 2013 11:40 AM

356
GX 460 _O M_ OM6 0K 80 U_ (U)4-5. Using the driving support systems
■Conditions under which the Rear Cross Traffi
c Alert function will not detect a vehicle
The Rear Cross Traffic Alert function is not designed to detect the following types of
vehicles and/or objects.
●Small motorcycles, bicycles, pedestrians etc.*
●Vehicles approaching from directly behind
●Guardrails, walls, signs, parked vehicles and similar stationary objects*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking spaces next to your vehicle*
●Vehicles backing up in the parking space next to your vehicle*
*
: Depending on conditions, detection of a vehicle and/or object may occur.
■Conditions under which the Rear Cross Traffic Alert function may not function cor-
rectly
The Rear Cross Traffic Alert function may not detect vehicles correctly in the following
conditions:
●During bad weather such as heavy rain, fog, snow etc.
●When ice or mud etc. is attached to the rear bumper
●When multiple vehicles approach continuously
●Shallow angle parking
●When a vehicle is approaching at high speed
●When parking on a steep incline, such as hills, a dip in the road etc.
●Directly after the Blind Spot Monitor system turned on
●When your vehicle is towing a trailer
●When items such as a bicycle carrier are installed on the rear of the vehicle
●Directly after the engine is started with the BSM main switch on
●When the sensors cannot detect vehicles
because of obstacles
GX460_OM_OM60K80U_(U).book Page 356 Wednesday, July 3, 2013 11:40 AM

357
GX 460 _O M_ OM6 0K 80 U_ (U)4-5. Using the driving support systems
4
Driving
PCS (Pre-Collision system)∗
◆Pre-collision seat belts (front seat belts only)
If the system detects that a collision is unavoidable, the system will retract the
seat belt before the collision occurs.
The same will happen if the driver makes an emergency braking or loses con-
trol of the vehicle. (
→P. 2 9 )
However, when the VSC system is disabled, the system will not operate in the
event of skidding.
◆Pre-collision brake assist
When there is a high possibility of a frontal collision, the system applies
greater braking force in relation to how strongly the brake pedal is depressed.
◆Pre-collision braking
When there is a high possibility of a frontal collision, the system warns the
driver using a warning light, warning display and buzzer. If the system deter-
mines that a collision is unavoidable, the brakes are automatically applied to
reduce the collision speed. Pre-collision braking can be disabled using the
pre-collision braking off switch.
◆AVS (Adaptive Variable Suspension System) control (if equipped)
When the system determines that there is a high possibility of a frontal colli-
sion, the AVS optimizes the damping effect ( →P. 3 3 1 )
∗: If equipped
When the radar sensor detects possibility of a frontal collision, the pre-colli-
sion system such as the brakes and seat belts are automatically engaged to
lessen impact as well as vehicle damage.
GX460_OM_OM60K80U_(U).book Page 357 Wednesday, July 3, 2013 11:40 AM

GX 460 _O M_ OM6 0K 80 U_ (U)
3594-5. Using the driving support systems
4
Driving
The radar sensor detects vehicles or
other obstacles on or near the road
ahead and determines whether a colli-
sion is imminent based on the position,
speed, and heading of the obstacles.
The driver monitor sensor detects the
direction the driver is facing. The sys-
tem determines whether the driver is
facing forward.
Radar sensor
Driver monitor sensor (if equipped)
GX460_OM_OM60K80U_(U).book Page 359 Wednesday, July 3, 2013 11:40 AM

GX 460 _O M_ OM6 0K 80 U_ (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 system will be automatically disabled.
In this case, the system will not activat e even if there is a collision possibility.
■Obstacles not detected
The system cannot detect plastic obstacles such 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 vehicle 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 retract 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 messages will turn on or flash. ( →P. 5 0 7 , 5 1 4 )
GX460_OM_OM60K80U_(U).book Page 361 Wednesday, July 3, 2013 11:40 AM

364
GX 460 _O M_ OM6 0K 80 U_ (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 (trailers 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 position, 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 th e sensor, grille cover or surrounding area.
●Do not modify or paint the sensor and grille cover.
GX460_OM_OM60K80U_(U).book Page 364 Wednesday, July 3, 2013 11:40 AM