LEXUS RX270 2014 Owners Manual

231
2-4. Using other driving systems
2
When driving
RX350/270_EE
Accelerate or decelerate the
vehicle to the desired speed,
and push the lever down to set
the speed.
“SET” will be displayed.
The vehicle speed at the
moment the lever is released
becomes the set speed.
■Adjusting the set speed
To change the set speed, operate the lever until the desired set
speed is obtained.
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.
The set speed will be increased or decreased as follows:
Fine adjustment: By approximately 1.6 km/h (1 mph) each time the lever is
operated.
Large adjustment: The set speed can be increased or decreased continu-
ally until the lever is released.
STEP2
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232
2-4. Using other driving systems
RX350/270_EE
■Cruise control can be set when
●The shift lever is in the D or range 4 or higher of S has been selected.
●Range 4 or higher has been selected by using the paddle shift.
(vehicles with paddle shift switch)
●Vehicle speed is above approximately 40 km/h (25 mph).
■Accelerating after setting the vehicle speed
●The vehicle can be accelerated normally. After acceleration, the set speed
resumes.
●Even without canceling the cruise control, the set speed can be increased by
first accelerating the vehicle to the desired speed and then pushing the lever
down to set the new speed.
■Canceling and resuming the constant speed control
Pulling the lever toward you
cancels the constant speed
control.
The speed setting is also can-
celed when the brakes are
applied.
Pushing the lever up resumes
the constant speed control.
Resuming is available when the
vehicle speed is more than
approximately 40 km/h (25
mph).
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233
2-4. Using other driving systems
2
When driving
RX350/270_EE
■Automatic cruise control cancelation
Cruise control will stop maintaining the vehicle speed in any of the following situa-
tions:
●Actual vehicle speed falls more than approximately 16 km/h (10 mph) below the
preset vehicle speed.
At this time, the memorized set speed is not retained.
●Actual vehicle speed is below approximately 40 km/h (25 mph).
●VSC is activated.
●VSC+ is activated (if equipped).
■If a warning message is shown on the multi-information display
Press the “ON-OFF” button once to deactivate the system, and then press the but-
ton again to reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels immediately
after being activated, there may be a malfunction in the cruise control system. Have
the vehicle inspected by any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional.
CAUTION
■To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON-OFF” button when not in use.
■Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting in death
or serious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep hills
Vehicle speed may exceed the set speed when driving down a steep hill.
●When your vehicle is towing a trailer or during emergency towing
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234
2-4. Using other driving systems
RX350/270_EE
Dynamic radar cruise control∗
Dynamic radar cruise control supplements conventional cruise control
with a vehicle-to-vehicle distance control. In vehicle-to-vehicle distance
control mode, the vehicle automatically accelerates or decelerates in
order to maintain a set following distance from vehicles ahead.
Indicator (vehicle-to-vehicle
distance control mode)
Indicator (constant speed
control mode)
Display
Vehicle-to-vehicle distance
button
Cruise control switch
■Setting the vehicle speed (vehicle-to-vehicle distance control
mode)
Press the “ON-OFF” button to
activate the cruise control.
Radar cruise control indicator
will come on.
Press the button again to deacti-
vate the cruise control.
STEP1
∗: If equipped
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235
2-4. Using other driving systems
2
When driving
RX350/270_EE
Accelerate or decelerate the
vehicle to the desired speed,
and push the lever down to set
the speed.
“SET” will be displayed.
The vehicle speed at the
moment the lever is released
becomes the set speed.
■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:
STEP2
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236
2-4. Using other driving systems
RX350/270_EE
When the set speed is shown in “MPH”
By approximately 8 km/h (5 mph) each time the lever is operated
When the set speed is shown in “km/h”
By approximately 5 km/h (3.1 mph) each time the lever is operated
In the constant speed control mode (→P. 234), the set speed will be
increased or decreased as follows:
Fine adjustment: By approximately 1.6 km/h (1 mph) each time the lever is
operated
Large adjustment: The set speed can be increased or decreased continu-
ally until the lever is released.
■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 also be displayed.
Preceding vehicle mark
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237
2-4. Using other driving systems
2
When driving
RX350/270_EE
■Vehicle-to-vehicle distance settings
Select a distance from the table below. Note that the distances
shown correspond to a vehicle speed of 80 km/h (50 mph). Vehi-
cle-to-vehicle distance increases/decreases in accordance with
vehicle speed.
■Canceling and resuming the speed control
Pulling the lever toward you
cancels the cruise 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 40 km/h (25 mph).
Distance optionsVehicle-to-vehicle distance
LongApproximately 50 m (164 ft.)
MediumApproximately 40 m (132 ft.)
ShortApproximately 25 m (82 ft.)
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238
2-4. Using other driving systems
RX350/270_EE
Driving in vehicle-to-vehicle distance control mode
This mode employs a radar sensor to detect the presence of vehicles up
to approximately 120 m (400 ft.) 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.
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.
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239
2-4. Using other driving systems
2
When driving
RX350/270_EEExample 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.
Approach warning
When 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
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240
2-4. Using other driving systems
RX350/270_EE
Selecting conventional constant speed control mode
Constant speed control mode differs from vehicle-to-vehicle distance
control mode. When constant speed control 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 forward and
hold for approximately one sec-
ond.)
Constant speed control mode indi-
cator 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 return to
vehicle-to-vehicle distance control
mode.
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