1997 Buick Century Owner's Manual - Page 73

A CAUTION: - Never do this. a Here a child is sitting inseat that has a lap-shoulder belt, but the shoulder part is behind way, the child. If the child wears the belt in this in a crash the child might slide under the belt. The belt's force would then be appliedright on the child's abdomen.That could cause seriousor fatal iniuries. Wherever the child sits, the lap portion of the belt should be worn low and snug on the hips, just touching the child's thighs. This appliesbelt force to the child's pelvic bones in a crash. 1-59