1996 Buick Park Avenue Owner's Manual - Page 55

Never do this. Here a child is sitting in seat that hasa a lap-shoulder belt, but the shoulder part behind is the child. If the child wears the belt in this in way, a crash the child might slide under the belt. The belt's force would then be applied right on the child's abdomen. That could cause serious or fatal injuries. Wherever the child sits, the lap portion of the belt should be worn low andsnug on the hips, just touching the child's thighs. This applies belt force to the child's pelvic bones in a crash.