Cadillac 2011 DTS Owner's Manual page 288

It is very important to know how much weight your
vehicle can carry. This weight is called the vehicle
capacity weight and includes the weight of all
occupants, cargo, and all nonfactory installed
options. Two labels on your vehicle show how
much weight it may properly carry, the Tire and
Loading Information label and the Certification
label.
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). This can cause
systems to break and change the way the
vehicle handles. This could cause loss of
control and a crash. Overloading can also
shorten the life of the vehicle.
5-18
A vehicle specific Tire and Loading Information
label is attached to the vehicle's center pillar
(B-pillar). With the driver's door open, you will find
the label attached below the door lock post
(striker). The Tire and Loading Information label
shows the number of occupant seating
positions (A), and the maximum vehicle capacity
weight (B) in kilograms and pounds.