2004 GMC Savana Van Owner's Manual - Page 9

Front Seats Manual Seats To adjust the seat, pull the lever up to release the seat bottom. Slide the seat to where you want it and then release the lever. Try to move the seat with your body, to make sure the seat is locked into place. {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 push a pedal when you don't want to. Adjust the driver's seat only when the vehicle is not moving. The bucket seats can be adjusted forward or rearward with the lever located at the front of the seat. 1-3