Toyota Avensis Owner's Manual page 219

 Paddle shift switch (if equipped)
When the "-" paddle shift switch is operated in the "D" position, a shift

range will be automatically selected. The highest gear of the first shift
range will be one gear lower than the gear in use during normal "D" posi-
tion driving.
 Automatic deactivation of shift range selection in the "D" position
Shift range selection in the "D" position will be deactivated in the follow-
ing situations:
• The "+" paddle shift switch is held down for a period of time
• When the vehicle comes to a stop
• If the accelerator pedal is depressed for longer than a certain period of
time in one shift range
Downshifting restrictions warning buzzer

To help ensure safety and driving performance, downshifting operation may
sometimes be restricted. In some circumstances, downshifting may not be
possible even when the shift lever or paddle shift switches (if equipped) is
operated. (The warning buzzer will sound twice.)
 When driving with cruise control or radar cruise control activated
Even when performing the following actions with the intent of enabling
engine braking, engine braking will not activate because cruise control or
radar cruise control will not be canceled.
 While driving "D" mode, downshifting to "5" or "4". (P. 267, 273)
 When switching the driving mode to sport mode while driving in "D" posi-
tion. (P. 216)
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2-1. Driving procedures
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