Tire Sidewall Labeling - GMC 2011 Sierra Denali Owner's Manual

20 Inch Tires
If your vehicle has the optional
20 inch P275/55R20 size tires,
they are classified as touring
tires and are designed for on
road use. The low profile,
wide tread design is not
recommended for off road
driving. See Off-Road Driving on
page 9 7, for additional
information.
If the vehicle has
Notice:
low profile tires, they are more
susceptible to damage from
road hazards or curb impact
than standard profile tires.
Tire and/or wheel assembly
damage can occur when
coming into contact with
road hazards like, potholes,
or sharp edged objects,
or when sliding into a curb.
The vehicle warranty does not
cover this type of damage.
Keep tires set to the correct
inflation pressure and, when
possible avoid contact with
curbs, potholes, and other
road hazards.

Tire Sidewall Labeling

Useful information about a tire
is molded into the sidewall.
The following illustrations are
examples of a typical P Metric
and a LT Metric tire sidewall.
Vehicle Care
Passenger (P Metric) Tire
(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.
10-47