Pontiac 2003 Bonneville Owner's Manual page 12

Reclining Seatbacks
If your vehicle has a power
recliner, the vertical control
described previously in
this section reclines
the front seatbacks.
If your vehicle has the manual recliner, lift the lever on
the outboard side of the seat and move the seatback
to the desired position. Release the lever to lock
the seatback. Pull up on the lever without pushing on
the seatback and the seatback will go to an upright
position.
But don't have a seatback reclined if your vehicle is
moving.
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