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219
2-3. Operating the lights and windshield wipers
2
When driving
RX350/270_EE
AFS (Adaptive Front-lighting system) (if equipped)
AFS (Adaptive Front-lighting System) improves visibility at intersections
and on curves by automatically adjusting the direction of the light axis of
the headlights according to vehicle speed and the degree of the tire
angle that are controlled by steering input.
AFS operates at speeds of 10 km/h (6 mph) or higher.
■Deactivating AFS
Press the menu switch.
The multi-information display will
change modes to electronic fea-
tures control mode.
Press the “∧” or “∨” switch until
“AFS” appears.
Press the “ENTER” switch to
change to “OFF”.
The “AFS OFF” indicator will be
displayed.
Each pressing of the switch turns
“AFS” on and off.
Press the menu switch to change
to the normal display.
STEP1
STEP2
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RX350/270_EE
2-4. Using other driving systems
Cruise control∗
Use the cruise control to maintain a set speed without depressing the
accelerator pedal.
Indicator
Display
Cruise control switch
■Setting the vehicle speed
Press the “ON-OFF” button to
activate the cruise control.
Cruise control indicator will
come on.
Press the button again to deacti-
vate the cruise control.
STEP1
∗: If equipped
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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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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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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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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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