Lexus LS460 Owners Book page 216

2-4. Using other driving systems
In the constant speed control mode (  P. 220), the set speed will be
increased or decreased 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 increased or decreased continu-
ally until the lever is released.
■
Changing the vehicle-to-vehicle distance
Preceding vehicle mark
216
Pressing the button changes the
Type A
vehicle-to-vehicle distance as
follows:
Long
Medium
Type B
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.