Toyota 2014 Venza Owner's Manual page 180

2-1. Driving procedures
Changing shift ranges in S mode
Shift the shift lever to the S mode driving position and operate the
shift lever.
The initial shift range in S mode is set automatically to 5 or 4 accord-
ing to vehicle speed. However, the initial shift range may be set to 3 if
AI-SHIFT has operated while the shift lever was in the D position.
(P. 182)
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Upshifting
Downshifting