GMC 1994 Yukon Owner's Manual page 53

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Q:
What if a child is wearing a lap-shoulder belt, but the child is so
small that the shoulder belt is very close to the child's face or neck?
A:
Move the child toward the center of the vehicle, but be sure that the
shoulder belt still is on the child's shoulder, so that in a crash the
child's upper body would have the restraint that belts provide. 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 child in a seat that has a lap
belt, if your vehicle has one.
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