Cadillac 2007 - Manual (Page 41)

{ CAUTION:
Never do this.
Here a child is sitting in a seat that has a
lap-shoulder belt, but the shoulder part is
behind the child. If the child wears the
belt in this way, 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.
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.
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