Using The Manual Recline Function - Mercury 2000 Grand Marquis Owner's Manual

Seating and safety restraints
Lift handle to move seat forward or
backward.
Pull lever up to adjust seatback.
Using the manual recline function (if equipped)
Never adjust the driver's seat or seatback when the vehicle is
moving.
Do not pile cargo higher than the seatbacks to avoid injuring
people in a collision or sudden stop.
Always drive and ride with your seatback upright and the lap
belt snug and low across the hips.
Reclining the seatback can reduce the effectiveness of the seat's
safety belt in the event of a collision.
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