2016 Lexus IS200t Navigation Manual / LEXUS 2016 IS200T,IS300,IS350 OWNERS MANUAL (OM53D18U)

2014-5. Using the driving support systems
4
Driving
IS350/300/200t_U (OM53D18U)
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 thos e covered with rain, ice or snow
●On steep hills
Vehicle speed may exceed the set speed when driving down a steep hill.
●During emergency towing

2024-5. Using the driving support systems
IS350/300/200t_U (OM53D18U)
Without accelerator pedal operation by the driver, in vehicle-to-vehicle distance
control mode, the vehicle automatically accelerates and decelerates in accor-
dance to the changes in speed of the pr eceding vehicle. In constant speed con-
trol mode, the vehicle runs at a fixed speed.
Use the dynamic radar cruise control on freeways and highways.
●Vehicle-to-vehicle distance control mode ( P. 2 0 3 )
●Constant speed control mode ( P. 2 0 8 )
Vehicle-to-vehicle distance button
Display
Set speed
Indicators
Cruise control switch
Dynamic radar cruise control

: If equipped
Summary of functions
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2
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5

2034-5. Using the driving support systems
4
Driving
IS350/300/200t_U (OM53D18U)
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 following 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-vehicle dis-
tance can also be set by operating the vehicle-to-vehicle distance control.
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 deceler-
ates your vehicle. When a greater reduction in vehicle speed is necessary, the system
applies the brakes. A warning tone warns yo u when the system cannot decelerate suf-
ficiently 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 wh ile adjusting for changes in the speed of
the vehicle ahead in order to maintain the vehicle-to-vehicle distance 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 con-
stant speed cruising.
Driving in vehicle-to-vehicle distance control mode
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2
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2044-5. Using the driving support systems
IS350/300/200t_U (OM53D18U)
Press the “ON/OFF” button to acti-
vate the cruise control.
Radar cruise control indicator will come
on and a message will be displayed on
the multi-information display.
Press the button again to deactivate the
cruise control.
Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (above
approximately 30 mph [50 km/h])
and push the lever down to set the
speed.
Cruise control “SET” indicator and set
speed will be displayed.
The vehicle speed at the moment the
lever is released be comes the set speed.
Setting the vehicle speed (vehicle-to-vehicle distance control mode)
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2

2054-5. Using the driving support systems
4
Driving
IS350/300/200t_U (OM53D18U)
To change the set speed, operate the lever until the desired set speed is dis-
played.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 decr eased 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 oper-
ated
Large adjustment: By approximately 5 mph (8 km/h) for each 0.6 seconds the
lever is held
• When the set speed is shown in “km/h”
Fine adjustment: By approxim ately 0.6 mph (1 km/h) each time the lever is oper-
ated
Large adjustment: By approximately 3.1 mph (5 km/h) for each 0.6 seconds the
lever is held
In the constant speed control mode ( P. 208), the set speed will be
increased or decr eased 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 incr eased or decreased continually until the
lever is released.
Adjusting the set speed
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2

2064-5. Using the driving support systems
IS350/300/200t_U (OM53D18U)
Pressing the button changes the vehi-
cle-to-vehicle distance as follows: Long
Medium
Short
The vehicle-to-vehicle distance is set
automatically to long mode when the
engine switch is turned to IGNITION
ON mode.
If a vehicle is running ahead of you, the preceding vehicle mark will also be displayed.
Select a distance from the table below. Note that the distances shown corre-
spond to a vehicle speed of 50 mph (8 0 km/h). Vehicle-to-vehicle distance
increases/decreases in accordance with vehicle speed.
Pulling the lever toward you cancels
the speed control.
The speed setting is also canceled when
the brake pedal is depressed.
Pushing the lever up resumes the
speed 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).
Changing the vehicle-to-vehicle distance (vehicle-to-vehicle distance
control mode)
Preceding
vehicle mark
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2
3
Vehicle-to-vehicle distance settings (vehicle-to-vehicle distance con-
trol mode)
Distance optionsVehicle-to-vehicle distance
LongApproximately 160 ft. (50 m)
MediumApproximately 130 ft. (40 m)
ShortApproximately 100 ft. (30 m)
Canceling and resuming the speed control
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2

2074-5. Using the driving support systems
4
Driving
IS350/300/200t_U (OM53D18U)
When your vehicle is too close to a
vehicle ahead, and sufficient automatic
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. Depress the brake
pedal to ensure an appropriate vehicle-
to-vehicle distance.
■Warnings may not occur when
In the following instances, there is a possibility that the warnings will not occur:
●When the speed of the preceding vehicle matches or exceeds your vehicle
speed
●When the preceding vehicle is traveling at an extremely slow speed
●Immediately after the cruise control speed was set
●When depressing the accelerator pedal
Approach warning (vehicle-to-vehicle distance control mode)

2084-5. Using the driving support systems
IS350/300/200t_U (OM53D18U)
When constant speed control mode is sele cted, your vehicle will maintain a set
speed without controlling the vehicle-to-vehicle distance. Select this mode only
when vehicle-to-vehicle distance contro l mode does not function correctly due
to dirt, etc.
Press the “ON/OFF” button to acti-
vate the cruise control.
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 distance con-
trol mode, push the lever forward agai n 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 switch is turned off and then turned to IGNITION ON mode again, the
vehicle will automatically return to vehicle-to-vehicle distance control mode.
Adjusting the speed setting:  P. 1 9 9
Canceling and resuming the speed setting: P. 1 9 9
Selecting constant speed control mode
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