Pontiac 2007 Solstice Owner's Manual page 230

Certification Label
A vehicle specific Certification label is attached
to the rear edge of the driver's door. It 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.
230
CAUTION:
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Do not load your 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 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.
Notice: Overloading your vehicle may cause
damage. Repairs would not be covered by your
warranty. Do not overload your vehicle.