Pontiac 2003 Aztek Owner's Manual page 28

Adjust the height so that the shoulder portion of the belt is
centered on your shoulder. The belt should be away from
your face and neck, but not falling off your shoulder.
I
Q:
What's wrong with this?
I
You can be seriously hurt if your shoulder belt
is too loose. In a crash, you would move
forward too much, which could increase injury.
The shoulder belt should fit against your body.
I
A:
The shoulder belt is too loose. It won't give nearly
as much protection this way.
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