Pontiac Vibe 2003 Owner's Manual page 210

This weight is called the Vehicle Capacity Weight, and
includes the weight of all occupants, cargo and all
nonfactory-installed options.
CAUTION:
{
Do not load your vehicle any heavier than the
GVWR, or either the maximum front or rear
GAWR. If you do, parts on your vehicle can
break, and it can change the way your vehicle
handles. These could cause you to lose
control and crash. Also, overloading can
shorten the life of your vehicle.
4-38
CAUTION:
{
Things you put inside your vehicle can strike
and injure people in a sudden stop or turn, or
in a crash.
•
Put things in the rear area of your vehicle.
Try to spread the weight evenly. If you
have fold-down rear seats, you'll find four
anchors on the back wall of your trunk.
You can use these anchors to tie down
lighter loads. They're not strong enough
for heavy things, however, so put them as
far forward as you can in the trunk or
rear area.
•
Never stack heavier things, like suitcases,
inside the vehicle so that some of them
are above the tops of the seats.
•
Don't leave an unsecured child restraint in
your vehicle.
•
When you carry something inside the
vehicle, secure it whenever you can.
•
Don't leave a seat folded down unless you
need to.