2006 GMC Yukon Owner's Manual - Page 15

To operate the easy entry seat, do the following: {CAUTION: A safety belt that is improperly routed, not properly attached, or twisted will not provide the protection needed in a crash. The person wearing the belt could be seriously injured. After raising the rear seatback, always check to be sure that the safety belts are properly routed and attached, and are not twisted. {CAUTION: 1. Lift the release lever on the outboard side of the back of the seat. 2. Tilt the seatback toward the front of the vehicle and the seat will release. 3. Pull (push if you are exiting the third row with no assistance) the seat forward until it stops. If the seatback is not locked, it could move forward in a sudden stop or crash. That could cause injury to the person sitting there. Always push and pull on the seatback to be sure it is locked. Return the seat to the normal seating position when finished. Push and pull on the seatback to make sure it is locked in place. 1-9