1993 Buick Regal Owner's Manual - Page 16

Seats and Seat Controls This section tells you about the seats -- how to adjust them,and also about reclining front seatbacks, and head restraints. Manual Seat A CAUTION: 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 pusha pedal when you don't want to. Adjust the driver's seat only when the vehicle is notmoving. Move the lever under the front seat to unlock it. Slide the seat to where you want it. Then release the lever and try to move the seat with your body, to make sure the seat is locked into place.