Lexus LS 500 2019 Owner's Manual page 241

When there are no longer any preceding vehicles driving slower than the set
speed
The system accelerates until the set speed is reached. The system then returns to constant
speed cruising.
Setting the vehicle speed (vehi-
cle-to-vehicle distance control
mode)
1 Press the cruise control main switch
to activate the cruise control.
Radar cruise control indicator will come on
and a message will be displayed on the
multi-information display. Press the switch
again to deactivate the cruise control.
If the cruise control main switch is pressed
and held for 1.5 seconds or more, the sys-
tem turns on in constant speed control
mode. (P.244)
2 Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the "-SET" switch to set
the speed.
Cruise control "SET" indicator will come
on.
The vehicle speed at the moment the
LS500_OM_(U)_1810
4-5. Using the driving support systems
switch is released becomes the set speed.
Adjusting the set speed
To change the set speed, press the
"+RES" or "-SET" switch until the
desired set speed is displayed.
1
Increases the speed (Except when
the vehicle has been stopped by
system control in vehicle-to-vehi-
cle distance control mode)
2 Decreases the speed
Fine adjustment: Press the switch.
Large adjustment: Press and hold the
switch to change the speed, and release
when the desired speed is reached.
In the vehicle-to-vehicle distance con-
trol mode, the set speed will be
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