2004 GMC Yukon Owner's Manual - Page 28

To fold the seatbacks on the bucket seats, do the following: 1. Pull up on the strap loop located at the rear of the seat cushion and pull the seat cushion up. Then fold it forward. 2. Pull the seatback release lever up and pull the seatback forward. Then fold it until it is flat. If the seatback cannot fold flat because it interferes with the cushion, try moving the front seat forward and/or bringing the front seatback more upright. 1-22