Toyota 2014 Sienna Manual page 298

2-4. Using other driving systems
■
Adjusting the set speed
To change the set speed, operate the lever until the desired set
speed is obtained.
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.
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SIENNA_OM_OM45483U_(U)
Increases the speed
Decreases the speed
Fine adjustment: Momentarily
move the lever in the desired
direction.
Large adjustment: Hold the
lever in the desired direction.