2011 LEXUS RX350 cruise control

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2-4. Using other driving systems
nCruise control can be set when
lThe shift lever is in D or “4”, “5” or “6” range of S has been selected.
lVehicle speed is above 25 mph (40 km/h).
nAccelerating
The vehicle can be accelerated normally. After acceleration, the set speed
resumes.
nAutomatic cruise control cancelation
The cruise control will stop maintaining the vehicle speed in any of the following sit-
uations:
lActual vehicle speed falls more than 10 mph (16 km/h) below the preset vehicle
speed.
At this time, the memorized set speed is not retained.
lActual vehicle speed is below 25 mph (40km/h).
lVSC is activated.
nIf the cruise control indicator light flashes
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 your Lexus dealer.

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When driving
CAUTION
nTo avoid operating the cruise control by mistake
Switch the cruise control off using the “ON-OFF” button when not in use.
nSituations 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.
lIn heavy traffic
lOn roads with sharp bends
lOn slippery roads, such as those covered with rain, ice or snow
lOn winding roads
lOn steep hills
Vehicle speed may exceed the set speed when driving down a steep hill.
lWhen your vehicle is towing anything

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Dynamic radar cruise control∗
Dynamic radar cruise control supplements conventional cruise control
with a vehicle-to-vehicle distance control. In the vehicle-to-vehicle dis-
tance 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
switch
Cruise control switch
nSelecting cruise mode
Selecting vehicle-to-vehicle dis-
tance control mode:
Press the “ON-OFF” button to
activate the cruise control.
Press the button again to deacti-
vate the cruise control.
∗: If equipped

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When driving
Selecting conventional con-
stant speed control mode:
Press the “ON-OFF” button
to activate the cruise control.
Press the button again to deacti-
vate the cruise control.
Switch to constant speed
control mode.
(Push and hold for approxi-
mately one second.)
Constant speed control mode
indicator will come on.
Vehicle-to-vehicle distance con-
trol mode is always reset when
the “ENGINE START STOP”
switch is turned to IGNITION
ON mode.
nDriving in the selected cruise control mode
Accelerate or decelerate to the
desired speed, and push the
lever down to set the speed.
“SET” will be displayed.

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When driving
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 no longer are vehicles driving slower than the set speed in
the lane ahead
When the vehicle ahead of you executes a lane change, the system slowly
accelerates until the set speed is reached. The system then returns to con-
stant 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 a 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 distance.
nDynamic radar cruise can be set when
lThe shift lever is in D. (Recommended)
Dynamic radar cruise control can also be set when the shift lever is in the S posi-
tion and range “4”, “5”, or “6” has been selected.
lVehicle speed is above approximately 30 mph (50 km/h).
nSwitching modes
The mode cannot be switched to constant speed control mode if vehicle-to-vehicle
distance control mode has been used. The mode also cannot be switched from
constant speed control to vehicle-to-vehicle distance control mode. Turn the sys-
tem off by pressing the “ON-OFF” button, and turn it on again.
nAccelerating
The vehicle can accelerate normally. After acceleration, the set speed resumes.

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nAutomatic cancelation of vehicle-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the follow-
ing situations:
lActual vehicle speed falls below approximately 25 mph (40 km/h).
lVSC is activated.
lThe sensor cannot operate correctly because it is covered in some way.
lThe windshield wipers are operating at high speed.
lWhen snow mode is set.
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.
nAutomatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following situations:
lActual vehicle speed is more than 10 mph (16 km/h) below the set vehicle
speed.
At this time, the memorized set speed is not retained.
lVehicle speed falls below approximately 25 mph (40 km/h).
lVSC is activated.
nVehicle-to-vehicle distance settings
Select a distance from the table below. Note that the distances shown correspond
to a vehicle speed of 50 mph (80 km/h). Vehicle-to-vehicle distance increases/
decreases in accordance with vehicle speed.
Distance optionsVehicle-to-vehicle distance
LongApproximately 164 f t. (50 m)
MediumApproximately 132 ft. (40 m)
ShortApproximately 82 ft. (25 m)

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When driving
nRadar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle
distance control operates properly. (Some obstructions, such as snow, ice and plas-
tic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
nWarning lights and messages for dynamic radar cruise control
Warning lights and messages are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. (→P. 5 5 1 )
nApproach warning
In the following instances, there is a possibility that the approach warnings will not
occur:
lWhen the speed of the vehicle ahead matches or exceeds your vehicle speed
lWhen the vehicle ahead is traveling at an extremely slow speed
lImmediately after the cruise control speed was set
lAt the instant the accelerator is applied
Grille cover
Radar sensor

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2-4. Using other driving systems
nCertification
For vehicles sold in U.S.A.
FCC ID: HYQDNMWR005
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the use’s authority to operate the equipment.
Radio frequency radiation exposure Information:
This equipment complies with FCC radiation exposure limits set forth for an uncon-
trolled environment.
This equipment should be installed and operated with minimum distance of 20 cm
between the radiator and your body.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
For vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
CAUTION
nBefore using dynamic radar cruise control
Do not overly rely on vehicle-to-vehicle distance control.
Be aware of the set speed. If automatic deceleration/acceleration is not appropri-
ate, adjust the vehicle speed, as well as the distance between your vehicle and vehi-
cles ahead by applying the brakes etc.