Lexus IS250 U Owner's Manual page 198

198
4-5. Using the driving support systems
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 in the
desired direction.
In the vehicle-to-vehicle distance control mode, the set speed will be increased or
decreased as follows:
• When the set speed is shown in "MPH"
Fine adjustment: By approximately 1 mph (1.6 km/h) each time the lever is oper-
ated
Large adjustment: By approximately 5 mph (8 km/h) for each 0.75 seconds the
lever is held
• When the set speed is shown in "km/h"
Fine adjustment: By approximately 0.6 mph (1 km/h) each time the lever is oper-
ated
Large adjustment: By approximately 3.1 mph (5 km/h) for each 0.75 seconds the
lever is held
In the constant speed control mode (P. 201), 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 continually until the
lever is released.
IS350/250_U (OM53C50U)