Buick Lucerne 2007 Owner's Manual page 15

If the seats have manual reclining seatbacks, the
lever used to operate them is located on the
outboard side of the seats.
Passenger's Seat shown
To recline the seatback, do the following:
1. Lift the recline lever.
2. Move the seatback to the desired position,
then release the lever to lock the seatback
in place.
3. Push and pull on the seatback to make sure it
is locked.
To return the seatback to an upright position, do
the following:
1. Lift the lever fully without applying pressure to
the seatback and the seatback will return to
the upright position.
2. Push and pull on the seatback to make sure it
is locked.
15