Safety Belts: They're For Everyone - Chevrolet 2001 Impala Owner's Manual

When the seat is not in use, it should be kept in the
upright locked position. If you plan to load items into
the trunk through the split folding rear seat, you must
first turn off the trunk release sensor. See "Trunk
Release Sensor" in the Index for more information.
CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted won't provide the
protection needed in a crash. The person wearing
the belt could be seriously injured. After raising
the rear seatback, always check to be sure that
the safety belts are properly routed and attached,
and are not twisted.
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Safety Belts: They're for Everyone

This part of the manual tells you how to use safety belts
properly. It also tells you some things you should not
do with safety belts.
And it explains the air bag system.
CAUTION:
Don't let anyone ride where he or she can't wear
a safety belt properly. If you are in a crash and
you're not wearing a safety belt, your injuries
can be much worse. You can hit things inside the
vehicle or be ejected from it. You can be seriously
injured or killed. In the same crash, you might
not be if you are buckled up. Always fasten your
safety belt, and check that your passengers' belts
are fastened properly too.