Lexus LS460 Owners Book page 220

2-4. Using other driving systems
Selecting conventional constant speed control mode
Dynamic radar cruise control can be used as conventional cruise control
if you select constant speed control mode.
220
Press the "ON-OFF" button to
activate the cruise control.
Press the button again to deacti-
vate the cruise control.
Vehicle-to-vehicle distance con-
trol mode is always reset when the
"ENGINE START STOP" switch is
turned to IGNITION ON mode.
Switch to constant speed con-
trol mode.
(Push the lever forward and
hold for approximately one sec-
ond.)
Constant speed control mode indi-
cator will come on.
Adjusting the speed setting:
 P. 215
Canceling and resuming the speed
setting:  P. 217