1997 GMC Sonoma Owner's Manual - Page 44

'A L CAUTION: 1 I Never do this. a Here a child is sitting in seat that has a lap-shoulder belt,but theshoulder part is behind the the child. If the child wears belt in thisway, in 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 and snug on the hips, just touching the child's thighs. This applies belt force to the child's pelvic bones in a crash. 1-36