Hummer 2009 H3 Owner's Manual page 220

4-38 Driving Your Vehicle
The combined weight of the
driver, passengers, cargo
and any accessories or
equipment added to the vehicle
after it left the factory should
never exceed the vehicle's
capacity weight.
Certification/Tire Label
Label Example
A vehicle specific
Certification/Tire label is
attached to the bottom section
of the center pillar (B-pillar),
on the driver's side of the
vehicle. The label shows the
Gross Vehicle Weight Rating
(GVWR). The GVWR includes
the weight of the vehicle, all
occupants, fuel, cargo and trailer
tongue weight, if pulling a
trailer.
The Certification/Tire label also
tells the maximum weights
for the front and rear axles,
called Gross Axle Weight Rating
(GAWR). To find out the
actual loads on the front and
rear axles, go to a weigh station
and weigh the vehicle. Your
dealer/retailer can help with this.
Be sure to spread out the
load equally on both sides of the
centerline.
Never exceed the GVWR for the
vehicle, or the GAWR for
either the front or rear axle.
If the load is heavy, it should be
spread out.
Similar appearing vehicles may
have different GVWRs and
capacity weights. Please note
the vehicle's Certification/Tire
label or consult your
dealer/retailer for additional
details.
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CAUTION
Do not load the vehicle any
heavier than the Gross Vehicle
Weight Rating (GVWR), or
either the maximum front or
rear Gross Axle Weight Rating
(GAWR). If you do, parts on
the 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 the vehicle.
Using heavier suspension
components to get added
durability might not change the
weight ratings. Ask your
dealer to help you load the
vehicle the right way.