Toyota 2009 Avalon Owner's Manual page 75

1-3. Adjustable components (seats, steering wheel, mirrors)
Active head restraint
n
Even small forces applied to the seatback may cause the head restraint to
move. Pushing up a locked head restraint forcibly may cause the head
restraint inner structure to appear. This does not indicate a problem.
CAUTION
Reclining adjustment
n
Do not recline the seat more than necessary when the vehicle is in motion,
to reduce the risk of sliding under the lap belt.
If the seat is too reclined, during an accident the lap belt may slide past the
hips and apply restraint forces directly to the abdomen or your neck may
contact the shoulder belt, increasing the risk of death or serious injury.
48
Inner
structure
During
rear-end
collision