Buick 2007 Terraza Owner's Manual page 50

CAUTION:
{
Never do this.
Here two children are wearing the same
belt. The belt can not properly 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.
50
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:
If the child is sitting in a seat next to a
window, move the child toward the center of
the vehicle. If the child is sitting in a center
rear seat position, move the child toward the
safety belt buckle. In either case, 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 sitting in a rear outboard
position, see Rear Safety Belt Comfort
Guides on page 45.