CHEVROLET 1999 Corvette - Manual (Page 18)

yellow blue
1-6
Seatback Latches
Both seatbacks fold forward to give you access to the
rear area. To fold a seatback forward, lift this latch,
which is located on top of the backside of the seat, and
pull the seatback forward. The seatback will lock down
in this position. To unlock, lift up on the latch and push
the seatback rearward. When you return the seatback to
its original position, make sure the seatback is locked.
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.