Chevrolet 2006 Aveo Owner's Manual page 14

To return the seatback to the upright position, do the
following:
1. Hook the safety belts into the retaining clips.
2. Lift the seatback up and push it to its original
position.
3. Unhook the safety belts from the retaining clips.
1-8
CAUTION:
{
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
push and pull on the seatback to be sure it is
locked.
4. Push down and rearward firmly on the top of the
seatback until it latches securely in the fully
upright position.
CAUTION:
{
A safety belt that is improperly routed, not
properly attached, or twisted will not provide
the protection needed in a crash. The person
wearing the belt could be seriously injured.
After raising the rear seatback, always check
to be sure that the safety belts are properly
routed and attached, and are not twisted.
5. Insert the safety belt strap back into the safety belt
guide.