stop start Lexus GX460 2012 Workshop Manual

244
2-3. Operating the lights and windshield wipers
GX460_U.S.A. (OM60J00U)
■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.

245
2-3. Operating the lights and windshield wipers
2
When driving
GX460_U.S.A. (OM60J00U)
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 headlight cleaners will operate
once. ( →P. 2 3 6 )
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.

253
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60J00U)
■Changing the vehicle- to-vehicle distance
Pressing the button changes the
vehicle-to-vehicle distance as
follows:
Long
Medium
Short
The vehicle-to-vehicle distance
is set automatically to long
mode when the “ENGINE
START STOP” switch is turned
to IGNITION ON mode.
If a vehicle is running ahead of
you, the preceding vehicle mark
will be also displayed.
■Vehicle-to-vehicle distance settings
Select a distance from the table below. Note that the distances
shown correspond to a vehicle sp eed of 50 mph (80 km/h). Vehi-
cle-to-vehicle distance increases/decreases in accordance with
vehicle speed.
Preceding vehicle mark
Distance optionsVehicle-to-vehicle distance
LongApproximately 160 ft. (50 m)
MediumApproximately 130 ft. (40 m)
ShortApproximately 100 ft. (30 m)

258
2-4. Using other driving systems
GX460_U.S.A. (OM60J00U)
Selecting conventional constant speed control mode
Constant speed control mode differs from vehicle-to-vehicle distance
control mode. When constant speed co ntrol mode is selected, your vehi-
cle will maintain a set speed regardless of whether or not there are other
vehicles in the lane ahead.
Press the “ON-OFF” button to activate the cruise control.
Cruise control indicator will come on.
Press the button again to deactivate the cruise control.
Switch to constant speed control mode.
(Push the lever forward and hold for approximately one second.)
Cruise control indicator will come on.
When in constant speed control mode, to return to vehicle-to-vehicle dis-
tance control mode, push the lever forward again and hold for approximately
one second.
After the desired speed has been set, it is not possible to return to vehicle-to-
vehicle distance control mode.
If the “ENGINE START STOP” switch is turned to IGNITION ON mode
again, the vehicle is automatically returns to vehicle-to-vehicle distance con-
trol mode.
Adjusting the speed setting: →P. 2 5 2
Canceling and resuming the speed setting: →P. 2 5 3

282
2-4. Using other driving systems
GX460_U.S.A. (OM60J00U)
■The rear view monitor can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Displayed areaThe area covered by the camera is limited.
Objects which that are close to either corner
of the bumper or under the bumper cannot
be seen on the screen.
The area displayed on the screen may vary
depending on vehicle orientation or road
conditions.
Corners of bumper

289
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60J00U)
■The wide view front & side monitor can be operated when
●The “ENGINE START STOP” switch is in IGNITION ON mode.
●The vehicle speed is less than approximately 6 mph (10km/h).
■Automatic system cancelation
In the following situations, the system is canceled automatically.
●When the vehicle speed exceeds approximately 7 mph (12 km/h).
●When the shift lever is in P or R.
■When the outside rear view mirrors have been folded
The side monitor screen can be displayed even if the outside rear view mirrors have
been folded. In this case, there will be a slight difference between the image dis-
played when the outside rear view mirrors are extended and when the outside rear
view mirrors have been folded.
If the side monitor is displayed while the outside rear view mirrors are folded, you
cannot check the area near the front edge of the vehicle as the base of the outside
rear view mirrors will be in the way.

318
2-4. Using other driving systems
GX460_U.S.A. (OM60J00U)
■When HI mode is selected
The vehicle height will change to N mode when driving at the speeds of 18 mph (30
km/h).
Even if vehicle speed is then reduced to under 18 mph (30 km/h), height will not
return to HI mode.
■When LO mode is selected
The vehicle height will change to N mode when vehicle speed exceeds 7 mph
(12 km/h).
Even if vehicle speed is then reduced to under 7 mph (12 km/h), height will not
return to LO mode.
■Automatic leveling function
Regardless of the number of occupants and the luggage load, vehicle height in any
mode is always adjusted to a fixed height by the automatic leveling function.
■The rear height control air suspension will not operate in the following cases:
●The underbody of the vehicle is touching the surface of the road.
●The area around the suspension is covered with ice.
■Even if you hear an operating noise
This does not indicate a problem in the rear height control air suspension.
■Parking and stopping tips
●If you immediately stop the engine after off-road driving, or park the vehicle for
a long time, the vehicle height may gradually lower. When parking, make sure
there is nothing under the vehicle that may come in contact with the underbody.
The vehicle will return to the set height when the engine is started.
●The vehicle height may change as the temperature changes when the engine is
stopped. The vehicle will return to the set height when the engine is started.

319
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60J00U)
■When lowering the vehicle
In order to prevent the vehicle height from rising as occupants leave the vehicle,
lowering control will occur for a short while after the engine has been stopped.
■The rear height control air suspension failure warning
●If a malfunction occurs in the rear height control air suspension, N mode is auto-
matically selected. However, the system may not switch to N mode depending
on the location of the malfunction.
●The warning message is displayed on the multi-information display, and the rear
height control air suspension cannot be activated until the malfunction is cor-
rected.
Stop the engine and start it again. If the warning message turns off, the system is
operating correctly. If the warning message continues to be displayed, have
your vehicle inspected by your Lexus dealer as soon as possible.
CAUTION
■The rear height control air suspension must be turned off
Be sure to observe the following precautions. Otherwise, the automatic leveling
function may cause vehicle height to change, and you may catch part of your body
in the vehicle, resulting in an accident:
●When jacking up the vehicle, installing tire chains or tying the vehicle with chains/
wires for transportation via flat bed truck, turn off the rear height control air sus-
pension and stop the engine.
●When the vehicle must be towed or disconnecting a trailer, put the vehicle height
in N mode and turn off the rear height control air suspension.
●When the vehicle is stuck, turn off the rear height control air suspension.

325
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60J00U)
■When the four-wheel drive control switch can be operated
●The “ENGINE START STOP” switch is in IGNITION ON mode.
●The shift lever is in the N position.
●The vehicle is stopped completely.
■The low speed four-wheel drive indicator light
●The indicator light blinks while switching between H4 and L4.
●If the low speed four-wheel drive indicator light continues to blink when you
operate the four-wheel drive control switch to the H4 or L4 position, stop the
vehicle completely, shift the shift lever securely into N and then operate the
switch again.
●If the shift lever is moved before the low speed four-wheel drive indicator turns
on/off, the transfer mode may not be shifted completely. The transfer mode dis-
engages both the front and rear drive shafts from the powertrain and allows the
vehicle to move regardless of the shift position. (At this time, the indicator blinks
and the buzzer sounds.)
Therefore, the vehicle is free to roll even if the shift lever is in P. You or someone
else could be seriously injured. You must complete the shifting of the transfer
mode and confirm that the indicator light has turned off (H4) or turned on (L4).
●If the engine coolant temperature is too low, the four-wheel drive control system
may not be able to shift. When the engine is warmer operate the switch again.
If the indicator continue to blink even if doing so, have the vehicle inspected by your
Lexus dealer as soon as possible. There may be a trouble in the four-wheel drive
system.

326
2-4. Using other driving systems
GX460_U.S.A. (OM60J00U)
■When the center differential lock/unlock switch can be operated
The “ENGINE START STOP” switch is in IGNITION ON mode.
■The center differential lock indicator light
●The indicator light blinks while locking/unlocking the center differential.
●If the center differential lock indicator light blinks and the buzzer sounds when
the center differential is locked, stop the slipping or spinning and push the
switch again.
If the indicator continue to blink even if doing so, have the vehicle inspected by your
Lexus dealer as soon as possible. There may be a trouble in the four-wheel drive
system.
■Locking/unlocking the center differential
●When the four-wheel drive control switch is in L4 with the center differential
locked, VSC is automatically turned off. (The center differential lock and VSC
OFF indicator light will come on.)
●If the operation is not completed, the center differential lock indicator blinks. If
the indicator light does not turn off when unlocking the center differential, drive
straight ahead while accelerating or decelerating, or drive in reverse.
●Avoid turning suddenly while the center differential is locked. If you do turn sud-
denly, the difference in turning speeds between the front and rear wheels may
have a similar effect to braking, thus making driving difficult.