2012 Lexus GX460 ignition

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.

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.

333
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60J00U)
■Operating tips
The system will operate when the shift lever is in a position other than P, however to
make effective use of the system it is recommended that the shift lever be shifted to
2 or 1 range of S mode.
■If the four-wheel drive control switch is in H4
The system does not operate.
■When the downhill assist control system is operated continuously
This may cause the brake actuator to overheat. In this case, the downhill assist con-
trol system will stop operating, a buzzer will sound and the DAC indicator will start
flashing, and the TRAC OFF will be shown on the multi-information display. Refrain
from using the system until the DAC indicator stays on and the message goes off.
(The vehicle can be driven normally during this time.)
■Sounds and vibrations caused by the DAC
●A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indicate that
a malfunction has occurred in DAC.
●Either of the following conditions may occur when the DAC is operating. None
of these are indicators that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■System malfunction
●The DAC indicator does not come on when the “ENGINE START STOP”
switch is turned to IGNITION ON mode.
●The “DAC” indicator does not come on when the “DAC” switch is pressed.
●The slip indicator comes on.
In the above cases, have your vehicle checked by your Lexus dealer.

411
3-1. Using the air conditioning system and defogger
3
Interior features
GX460_U.S.A. (OM60J00U)
Rear window defogger switch
■The defoggers can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■The outside rear view mirror defoggers
Turning the rear window defogger on will turn the outside rear view mirror defog-
gers on.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the outside surface of the rear view mirrors, as they can become very
hot and burn you.
Defoggers are used to defog the rear window, and to remove raindrops,
dew and frost from the outside rear view mirrors.
Vehicles with a navigation system
Refer to the “Navigation System Owner’s Manual”.
Vehicles without a navigation system Turns the rear window and out-
side rear view mirror defoggers
on/off.
The defoggers will automatically
turn off after their operation
time. The operation time varies
depending on the ambient tem-
perature and vehicle speed.