Lexus RX 450h 2010 Owner's Manual page 230

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.
Dynamic radar cruise can be set when
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The 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.
Vehicle speed is above approximately 30 mph (50 km/h).
●
Switching modes
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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.
Accelerating
■
The vehicle can accelerate normally. After acceleration, the set speed resumes.
2-4. Using other driving systems
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