Pontiac G3 2009 Owner's Manual page 200

Certification Label
Label Example - United States
4-26
Label Example - Canada
A vehicle specific Certification label is attached to
the center pillar (B-pillar), below the driver's door
latch. This label tells you the gross weight capacity
of your vehicle, called the Gross Vehicle Weight
Rating (GVWR). The GVWR includes the weight of
the vehicle, all occupants, fuel and cargo. Never
exceed the GVWR for your vehicle, or the Gross
Axle Weight Rating (GAWR) for either the front or
rear axle.
And, if you do have a heavy load, you should
spread it out. See "Steps for Determining Correct
Load Limit" earlier in this section.