Lexus LS460 2008 Owner's Manual page 152

2-1. Driving procedures
Changing shift ranges in "S" mode
Shift the shift lever to the "S" position and operate the shift lever.
The initial shift range in "S" mode is automatically set to "4", "5", "6" or "7"
according to vehicle speed. However, the initial shift range may be set to
"2" or "3" if the AI-SHIFT has operated while the shift lever was in the "D"
position. (P. 154)
152
Upshifting
Downshifting