1997 Buick Century Owner's Manual - Page 72

I Never do this. Here twochildren are wearing the same belt. The belt can'tproperly spread the impact forces. In a crash, the two children can be crushed together and seriously injured. A belt must be used by only one person at a time. Q What if a child is wearing a lap-shoulder belt, : but the child is so small that the shoulder belt is very closeto the child's faceor neck? A: Move the child toward the centerof the vehicle, but be sure that the shoulder belt still is on the child's shoulder, so that in a crash child's upper body the would have the restraint that belts provide. If the child issitting in arear seat outside position, see "Rear Safety Belt Comfort Guides'' in theIndex. If the child is so small that the shoulder belt is still very close to the child's face or neck, you might want to place the childin the centerseat position, the one that has only a lap belt. 1-58