2013 Lexus GX460 Owner's Manual

256
2-4. Using other driving systems
GX460_OM_OM60J63U_(U)
■Adjusting the set speed
To change the set speed, operate the lever until the desired set
speed is displayed.
Increases the speed
Decreases the speed
Fine adjustment: Momentarily
move the lever in the desired
direction.
Large adjustment: Hold the
lever in the desired direction.
In the vehicle-to-vehicle distance control mode, the set speed will be
increased or decreased as follows:
When the set speed is shown in “MPH” Fine adjustment: By approximately 1 mph (1.6 km/h) each time the
lever is operated
Large adjustment: By approximately 5 mph (8 km/h) for each 0.75
seconds the lever is held
When the set speed is shown in “km/h” Fine adjustment: By approximately 0.6 mph (1 km/h) each time the
lever is operated
Large adjustment: By approximately 3.1 mph (5 km/h) for each 0.75
seconds the lever is held
In the constant speed control mode (→ P. 262), the set speed will be
increased or decreased as follows:
Fine adjustment: By approximately 1 mph (1.6 km/h) each time the lever is
operated
Large adjustment: The set speed can be increased or decreased contin-
ually until the lever is released.
GX460_OM_OM60J63U_(U).book Page 256 Thursday, March 29, 2012 9:10 AM

257
2-4. Using other driving systems
2
When driving
GX460_OM_OM60J63U_(U)
■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)
GX460_OM_OM60J63U_(U).book Page 257 Thursday, March 29, 2012 9:10 AM

258
2-4. Using other driving systems
GX460_OM_OM60J63U_(U)
■Canceling and resuming the speed control
Pulling the lever toward you
cancels the speed control.
The speed setting is also can-
celed when the brakes are
applied.
Pushing the lever up resumes
the cruise control and returns
vehicle speed to the set
speed.
Resuming is available when
the vehicle speed is more
than approximately 25 mph
(40 km/h).
GX460_OM_OM60J63U_(U).book Page 258 Thursday, March 29, 2012 9:10 AM

259
2-4. Using other driving systems
2
When driving
GX460_OM_OM60J63U_(U)
Driving in vehicle-to-vehicle distance control mode
This mode employs a radar sensor to detect the presence of vehicles up
to approximately 400 ft. (120 m) ahead, determines the current vehicle-
to-vehicle following distance, and operates to maintain a suitable follow-
ing distance from the vehicle ahead.
Note that vehicle-to-vehicle distance will close in when traveling on long
downhill slopes.
GX460_OM_OM60J63U_(U).book Page 259 Thursday, March 29, 2012 9:10 AM

260
2-4. Using other driving systems
GX460_OM_OM60J63U_(U)Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver. The desired vehicle-to-vehi-
cle distance can also be set by operating the vehicle-to-vehicle distance con-
trol.
Example of deceleration cruising
When the vehicle ahead is driving slower than the set speed
When a vehicle is detected running ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle speed is nec-
essary, the system applies the brakes. A warning tone warns you when the
system cannot decelerate sufficiently to prevent your vehicle from closing in
on the vehicle ahead.
Example of follow-up cruising
When following a vehicle driving slower than the set speed
The system continues follow-up cruising while adjusting for changes in the
speed of the vehicle ahead in order to maintain the vehicle-to-vehicle dis-
tance set by the driver.
Example of acceleration
When there are no longer any vehicles ahead driving slower than the
set speed
The system accelerates until the set speed is reached. The system then
returns to constant speed cruising.
GX460_OM_OM60J63U_(U).book Page 260 Thursday, March 29, 2012 9:10 AM

261
2-4. Using other driving systems
2
When driving
GX460_OM_OM60J63U_(U)
Approach warningWhen your vehicle is too close to a vehicle ahead, and sufficient auto-
matic deceleration via the cruise control is not possible, the display will
flash and the buzzer will sound to alert the driver. An example of this
would be if another driver cuts in front of you while you are following a
vehicle. Apply the brakes to ensure an appropriate vehicle-to-vehicle dis-
tance.
■ Warnings may not occur when
In the following instances, there is a possibility that the warnings will not
occur:
● When the speed of the vehicle ahead matches or exceeds your
vehicle speed
● When the vehicle ahead is traveling at an extremely slow speed
● Immediately after the cruise control speed was set
● At the instant the accelerator is applied
GX460_OM_OM60J63U_(U).book Page 261 Thursday, March 29, 2012 9:10 AM

262
2-4. Using other driving systems
GX460_OM_OM60J63U_(U)
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.
Press the button again to deacti-
vate the cruise control.
Switch to constant speed con-
trol mode. (Push the lever for-
ward and hold for
approximately 1 second.)
Cruise control indicator will come
on.
When in constant speed control
mode, to return to vehicle-to-vehi-
cle distance control mode, push
the lever forward again and hold
for approximately 1 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 off and then turned
to IGNITION ON mode again, the
vehicle will automatically returns to
vehicle-to-vehicle distance control
mode.
Adjusting the speed setting:
→P. 2 5 6
Canceling and resuming the speed
setting: →P. 2 5 8
GX460_OM_OM60J63U_(U).book Page 262 Thursday, March 29, 2012 9:10 AM

263
2-4. Using other driving systems
2
When driving
GX460_OM_OM60J63U_(U)
■Dynamic radar cruise control can be set when
●The shift lever is in the D or range 4 or higher of S has been selected.
●Vehicle speed is above approximately 30 mph (50 km/h).
■Accelerating after setting the vehicle speed
The vehicle can be accelerated normally. After acceleration, the set speed
resumes. However, during vehicle-to-vehicle distance control mode, the vehicle
speed may decrease below the set speed in order to maintain the distance to the
vehicle ahead.
■Automatic cancelation of vehicle-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the follow-
ing situations:
●Actual vehicle speed falls below approximately 25 mph (40 km/h).
●VSC is activated.
●The sensor cannot operate correctly because it is covered in some way.
●The windshield wipers are operating at high speed (when the wiper switch is set
to the “AUTO” mode or the high speed wiper operation position).
●When second start mode is set.
●Bad weather causes the detection function to become extremely unstable.
●Multi-terrain mode is selected other than OFF.
●The center differential lock/unlock is not completed within 5 seconds while the
dynamic radar cruise control system is on.
If vehicle-to-vehicle distance control driving is automatically canceled for any other
reason, there may be a malfunction in the system. Contact your Lexus dealer.
GX460_OM_OM60J63U_(U).book Page 263 Thursday, March 29, 2012 9:10 AM