Toyota Sienna 2010 Owner's Manual page 169

Downshifting restrictions
■
The shift lever cannot be downshifted if the following speeds are exceeded.
2WD models
Downshifting
AWD models
Downshifting
When driving with the cruise control system
■
Engine braking will not occur when downshifting from D to 4. (→P. 194, 197)
If the shift lever cannot be shifted from P
■
→P. 530
4→3
3→2
2→L
4→3
3→2
2→L
2-1. Driving procedures
mph (km/h)
Maximum speed
100 (162)
64 (104)
36 (58)
mph (km/h)
Maximum speed
95 (154)
61 (99)
34 (55)
2
171