Summer Tires; Tire Sidewall Labeling - Chevrolet SS Sedan 2015 Owner's Manual

Caution (Continued)
damage. Keep tires set to the
correct inflation pressure and
when possible, avoid contact with
curbs, potholes, and other road
hazards.

Summer Tires

Ultra High Performance Summer
Tires
This vehicle may come with 245/
40R19 and 275/35R19 ultra high
performance summer tires. These
tires have a special tread and
compound that are optimized for
maximum dry and wet road
performance. This special tread and
compound will have decreased
performance in cold climates, and
on ice and snow. Driving a vehicle
with ultra high performance summer
tires when temperatures are below
approximately 5°C (40°F) is not
recommended. If driving in these
conditions, winter tires should be
installed. See Winter Tires on
page 10-36.
Caution
Ultra high performance summer
tires have rubber compounds that
lose flexibility and may develop
surface cracks in the tread area
at temperatures below -7°C (20°
F). Always store ultra high
performance summer tires
indoors and at temperatures
above -7°C (20°F) when not in
use. If the tires have been
subjected to -7°C (20°F) or less,
let them warm up in a heated
space to at least 5°C (40°F) for
24 hours or more before being
installed or driving a vehicle on
which they are installed. Do not
apply heat or blow heated air
directly on the tires. Always
inspect tires before use. See Tire
Inspection on page 10-48.
Vehicle Care

Tire Sidewall Labeling

Useful information about a tire is
molded into its sidewall. The
examples show a typical
passenger tire sidewall.
Passenger (P-Metric) Tire Example
(1) Tire Size The tire size 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.
10-37