Lexus GS450h Owner's Manual page 301

Adjusting the set speed
To change the set speed, operate the lever until the desired set speed is dis-
played.
Increases the speed
1
(Except when the vehicle has been
stopped by system control in vehicle-to-
vehicle distance control mode)
Decreases the speed
2
Fine adjustment: Momentarily move
the lever in the desired direction.
Large adjustment: Hold the lever up or
down to change the speed, and release
when the desired speed is reached.
In the vehicle-to-vehicle distance control mode, the set speed will be increased
or decreased as follows:
For Europe

Fine adjustment: By 5 km/h (3.1 mph)
operated
Large adjustment: Increases or decreases in 5 km/h (3.1 mph)
increments for as long as the lever is held
Except for Europe

Fine adjustment: By 1 km/h (0.6 mph)
operated
Large adjustment: Increases or decreases in 5 km/h (3.1 mph)
increments for as long as the lever is held
In the constant speed control mode (P. 304), the set speed will be increased
or decreased as follows:
Fine adjustment: By 1 km/h (0.6 mph)
operated
Large adjustment: The speed will continue to change while the lever is held.
*
1
: When the set speed is shown in "km/h"
*
2
: When the set speed is shown in "MPH"
GS450h_300h_OM_OM30F92E_(EE)
4-5. Using the driving support systems
* *
1 2
or 5 mph (8 km/h)
*
1
* *
1 2
or 1 mph (1.6 km/h)
*
1
* *
1 2
or 1 mph (1.6 km/h)
301
each time the lever is
*
2
or 5 mph (8 km/h)
each time the lever is
*
2
or 5 mph (8 km/h)
each time the lever is
4