GMC 2007 Acadia Owner's Manual page 35

Q:
What is wrong with this?
A:
The belt is over an armrest.
CAUTION:
{
You can be seriously injured if your belt
goes over an armrest like this. The belt
would be much too high. In a crash, you
can slide under the belt. The belt force
would then be applied at the abdomen,
not at the pelvic bones, and that could
cause serious or fatal injuries. Be sure the
belt goes under the armrests.
35