Lexus GS 350 Owner's Manual page 324

Adjusting the set speed
To change the set speed, operate the lever until the desired set speed is dis-
played.
Increases the speed
1
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:
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. 326), the set speed will be increased
or decreased as follows:
Fine adjustment: By 1.6 km/h (1 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"
GS350_300_GS F_OM_OM30J17E_(GE)
4-5. Using the driving support systems
1 2
* *
or 1 mph (1.6 km/h)
* 1
* 1 * 2
or 1 mph (1.6 km/h)
323
each time the lever is
* 2
or 5 mph (8 km/h)
each time the lever is
4