lights Lexus GX460 2010 Operating Other Driving Systems / LEXUS 2010 GX460 (OM60E69U) Service Manual

240
2-3. Operating the lights and windshield wipers
GX460_U.S.A. (OM60E69U)
■The rear window wiper and washer can be operated when
●The “ENGINE START STOP” switch is in IGNITION ON mode.
●The glass hatch is closed.
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the wind-
shield washer fluid reservoir.
NOTICE
■When the rear window is dry
Do not use the wiper, as it may damage the rear window.
■When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may overheat.

241
2-3. Operating the lights and windshield wipers
2
When driving
GX460_U.S.A. (OM60E69U)
Headlight cleaner switch
: If equipped
■The headlight cleaners can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode and the headlight
switch is turned on.
■Windshield washer linked operation
When the windshield washer is operated with the “ENGINE START STOP” switch
in IGNITION ON mode and the headlights on, the head light cleaners will operate
once. ( P. 235)
NOTICE
■When the washer fluid tank is empty
Do not press the switch continually as the washer fluid pump may overheat.
Washer fluid can be sprayed on the headlights.
Press the switch to clean the
headlights.

254
2-4. Using other driving systems
GX460_U.S.A. (OM60E69U)
■Automatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following situations:
●Actual vehicle speed is more than approximately 10 mph (16 km/h) below the
set vehicle speed.
At this time, the memorized set speed is not retained.
●Vehicle speed falls below approximately 25 mph (40 km/h).
●VSC is activated.
●The center differential lock/unlock is not completed within 5 seconds while the
dynamic radar cruise control system is on.
■Vehicle-to-vehicle distance settings
Select a distance from the table below. Note that the distances shown correspond
to a vehicle speed of 50 mph (80 km/h). Vehicle-to-vehicle distance increases/
decreases in accordance with vehicle speed.
■Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle
distance control operates properly. (Some obstructions, such as snow, ice and plas-
tic objects, cannot be detected by the obstruction sensor.) 
Dynamic radar cruise control is canceled if an obstruction is detected.
■Warning lights, messages and buzzer for dynamic radar cruise control
Warning lights, messages and buzzer ar e used to indicate a system malfunc-
tion or to inform the driver of th e need for caution while driving. ( P. 6 9 8 )
Distance optionsVehicle-to-vehicle distance
LongApproximately 160 f t. (50 m)
MediumApproximately 130 ft. (40 m)
ShortApproximately 100 f t. (30 m)
Grille cover
Radar sensor

271
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60E69U)
■When the vehicle has been parked in the sun
The LDA system may not be available for a while after driving has started. In such
cases, turn the LDA system off and turn it on again after normal temperature
returns. When the temperature in the cab in decreases and the temperature around
the camera sensor becomes suitable for it s operation, the functions will begin to
operate.
■Warning lights and messages for LDA
Warning lights and messages ar e used to indicate a system malfunction or to inform
the driver of the need for caution while driving. ( P. 6 9 8 )
CAUTION
■Before using the LDA system
This system provides information to the driver in accordance with the road geome-
try and the driving conditions. Be aware of your surroundings at all times, correct
the driving path while driving appropriately and be responsible for your own safety.
This system operates by using the camera to identify lane markers when the LDA
switch is on and the vehicle is being driven at the system operating speed. 
Operation may be temporarily suspended if the camera cannot recognize the lane
markers or if the system cannot operate due to the road environment or driving
conditions. Also, since an alarm may sound unnecessarily if the lane markers cannot
be correctly identified, make sure to drive responsibly even while the system is
operating.
If a malfunction occurs in the system, the driver will be alerted by a buzzer and a dis-
play, and LDA operation will be temporarily suspended. However, this does not
present a problem to normal driving.
If the alert is displayed even after restarti ng the engine, have your vehicle inspected
by your Lexus dealer.

273
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60E69U)
NOTICE
■In the following situations, the LDA will not work, or will not perform reliably
●When the lane markers are interrupted or are not present, such as before a toll-
booth.
●When the lane markers are only on one side of the road.
●When driving on a sharp curve.
●When lanes are extremely narrow or extremely wide.
●When the vehicle leans to one side an unusual amount due to a heavy load or
improper tire inflation pressure.
●When the following distance between your vehicle and the vehicle ahead is
extremely short.
●When the lane markers are broken or when “Botts’ dots” or “Raised pavement
markers” can be seen.
●When the lane markers are obscured or partially obscured by sand, dirt, etc.
●When driving on a particularly bright road surface, such as concrete.
●When driving on a road surface that is bright due to reflected light.
●When driving in a location where the light level changes rapidly, such as the
entrance to or exit from a tunnel.
●When sunlight or the headlights of oncoming vehicles are shining directly into the
camera lens.
●When pavement lane markers are difficult to see due to rain, snow, fog, etc.
●When driving on a road surface that is wet due to rain, standing water, etc.
●When the vehicle experiences strong up-a nd-down motion such as when driving
on an extremely rough road or on a seam in the pavement.
●When driving on roads that are branching or merging.
●When headlight brightness is reduced due to dirt on the lenses, or when the
headlights are misaligned.

277
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60E69U)
■Rear view monitor camera
■When the back door is open
The screen cannot be used because a message is displayed.
When backing up the vehicle, make sure the back door is securely closed.
The rear view monitor camera is located on
the back door as shown in the illustration. The
camera uses a special lens. The distance of
the image that appears on the screen differs
from the actual distance.
In the following cases, it may be difficult to
see images on the screen even when the sys-
tem is functioning correctly:
●The vehicle is in a dark area, such as at
night.
●The temperature near the lens is extremely
high or low.
●Water droplets are on the camera lens or
humidity is high, such as when it rains.
●Foreign matter, such as snow and mud,
adheres to the camera lens.
●The camera has scratches or dirt on it.
●The sun or headlights are shining directly
into the camera lens.

278
2-4. Using other driving systems
GX460_U.S.A. (OM60E69U)
■Smear effect
■Flicker effect
When the camera is used under fluorescent lights, sodium lights, mercury lights
etc., the lights and the illuminated areas may appear to flicker.
CAUTION
■When using the rear view monitor system
Observe the following precautions to avoid an accident that could result in death or
serious injuries:
●Never depend solely on the monitor system when reversing.
●Always check visually and with the mirrors to confirm your intended path is clear.
●Depicted distances between objects and flat surfaces differ from actual dis-
tances.
If a bright light, such as sunlight reflected off
the vehicle body, is picked up by the camera,
a smear effect
* characteristic to the camera
may occur.
*: Smear effect A phenomenon that
occurs when a bright light is picked up by
the camera; when transmitted by the cam-
era, the light source appears to have a ver-
tical streak above and below it.

287
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60E69U)
■Wide view front & side monitor cameras
In the following cases, it may be difficult to see images on the screen even when the
system is functioning correctly:
●The vehicle is in a dark area, such as at night.
●The temperature near the lens is extremely high or low.
●Water droplets are on the camera lens or humidity is high, such as when it rains.
●Foreign matter, such as snow and mud, adheres to the camera lens.
●The camera has scratches or dirt on it.
●The sun or headlights are shining directly into the camera lens.
●The camera lens is damaged by flying stones.
Side camera
Front camera

288
2-4. Using other driving systems
GX460_U.S.A. (OM60E69U)
■Smear effect
■Flicker effect
When the camera is used under fluorescent lights, sodium lights, mercury lights
etc., the lights and the illuminated areas may appear to flicker.
CAUTION
■When using the wide view front & side monitor system
Observe the following precautions to avoid an accident that could result in death or
serious injuries.
●Never depend solely on the monitor system.
●Always check visually and with the mirrors to confirm your intended path is clear.
●Depicted distances between objects and flat surfaces differ from actual dis-
tances.
●Do not use the system if the hood or doors are open.
If a bright light, such as sunlight reflected off
the vehicle body, is picked up by the camera,
a smear effect
* characteristic to the camera
may occur.
*: Smear effect A phenomenon that
occurs when a bright light is picked up by
the camera; when transmitted by the cam-
era, the light source will appear to have
streaks of light emanating from it. The
streaks will also appear when the light
source is in the masked area.

307
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60E69U)
■Multi-terrain Monitor cameras
In the following cases, it may be difficult to see images on the screen even when the
system is functioning correctly:
●The vehicle is in a dark area, such as at night.
●The temperature near the lens is extremely high or low.
●Water droplets are on the camera lens or humidity is high, such as when it rains.
●Foreign matter, such as snow and mud, adheres to the camera lens.
●The camera has scratches or dirt on it.
●The sun or headlights are shining directly into the camera lens.
●The camera lens is damaged by flying stones.
Side cameras
Front camera
Rear camera