Chevrolet 2010 Corvette Convertible Owner's Manual page 40

You can lose control of the vehicle if you try to
adjust a manual driver's seat while the vehicle is
moving. The sudden movement could startle and
confuse you, or make you push a pedal when you
do not want to. Adjust the driver's seat only when
the vehicle is not moving.
If either 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 seatbacks to be sure they
are locked.
The seats have manual reclining seatbacks. The lever
used to operate them is located on the outboard side of
the seats.
2-6
To recline the seatback:
1. Lift the recline lever.
2. Lean back to position the seatback to where you
want it.
3. Release the lever to lock the seatback into place.