Chevrolet 2006 Avalanche Owner's Manual page 426

(G) Maximum Cold Inflation Load Limit: Maximum
load that can be carried and the maximum pressure
needed to support that load. For information on
recommended tire pressure see Inflation - Tire Pressure
on page 5-71 and Loading Your Vehicle on page 4-46.
Light Truck (LT-Metric) Tire
5-66
(A) Tire Size: The tire size code is a combination of
letters and numbers used to define a particular
tire's width, height, aspect ratio, construction type, and
service description. See the "Tire Size" illustration
later in this section for more detail.
(B) TPC Spec (Tire Performance Criteria
Specification): Original equipment tires designed to
GM's specific tire performance criteria have a TPC
specification code molded onto the sidewall. GM's TPC
specifications meet or exceed all federal safety
guidelines.
(C) Dual Tire Maximum Load: Maximum load that can
be carried and the maximum pressure needed to
support that load when used in a dual configuration.
For information on recommended tire pressure see
Inflation - Tire Pressure on page 5-71 and Loading Your
Vehicle on page 4-46.
(D) DOT (Department of Transportation): The
Department of Transportation (DOT) code indicates that
the tire is in compliance with the U.S. Department of
Transportation Motor Vehicle Safety Standards.