Pontiac 2003 Montana Owner's Manual page 28

2. The seat can then be lifted off the front floor pins
and removed from the vehicle.
1-22
Replacing the Captain's Chairs
{
CAUTION:
If the seatback isn't locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
press rearward on the seatback to be sure it is
locked.
{
CAUTION:
A seat that isn't locked into place properly can
move around in a collision or sudden stop.
People in the vehicle could be injured. Be sure
to lock the seat into place properly when
installing it.