1999 GMC Safari Owner's Manual - Page 10

yellowblue Reclining Seatbacks There is a lever on the inside of the seat to adjust the seatback. You can adjust the seatback by lifting the lever and leaning back. Release the lever to lock the seatback where you want it. Pull up on the lever, lean forward and the seat will go to an upright position. But don't have a seatback reclined if your vehicle is moving. 1-4