Buick 2013 Regal Owner's Manual page 301

The number of designated
seating positions multiplied by
68 kg (150 lbs) plus the rated
cargo load. See
.
Load on an individual tire
due to curb weight, accessory
weight, occupant weight, and
cargo weight.
A label
permanently attached to a
vehicle showing the vehicle
capacity weight and the original
equipment tire size and
recommended inflation pressure.
See Tire and Loading
Information Label under
Tires need the correct amount of
air pressure to operate
effectively.
.
The Tire and Loading
Information label on the vehicle
indicates the original equipment
tires and the correct cold tire
inflation pressures. The
recommended pressure is the
minimum air pressure needed to
support the vehicle's maximum
load carrying capacity. See
.
How the vehicle is loaded
affects vehicle handling and ride
comfort. Never load the vehicle
with more weight than it was
designed to carry.