Chevrolet 2007 Avalanche Owner's Manual page 19

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.
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 be sure to press the
rear of the seat cushion down. This action
locks the seatback in place.
Push and pull on the seatback to make sure it is
locked. Raise the head restraint.
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