Toyota prius Owner's Manual page 294

2-4. Using other driving systems
 Canceling and resuming the constant speed control
Pulling the lever toward you
cancels the constant speed
control.
The speed setting is also can-
celed when the brakes are
applied.
Pushing the lever up
resumes the constant
ITO24P106
speed control.
Resuming is available when
the vehicle speed is more
than approximately 40 km/h
(25 mph).
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