When It Is Time For New Tires; Buying New Tires - Pontiac Montana SV6 2007 Owner's Manual

When It Is Time for New Tires

You need a new tire if any of the following
statements are true:
•
You can see the indicators at three or more
places around the tire.
•
You can see cord or fabric showing through
the tire's rubber.
•
The tread or sidewall is cracked, cut, or
snagged deep enough to show cord or fabric.
470
One way to tell when it
is time for new tires is
to check the treadwear
indicators, which will
appear when your tires
have only 1/16 inch
(1.6 mm) or less of tread
remaining.
•
The tire has a bump, bulge, or split.
•
The tire has a puncture, cut, or other damage
that cannot be repaired well because of the
size or location of the damage.

Buying New Tires

GM has developed and matched specific tires for
your vehicle. The original equipment tires installed
on your vehicle, when it was new, were designed to
meet General Motors Tire Performance Criteria
Specification (TPC spec) system rating. If you need
replacement tires, GM strongly recommends that
you get tires with the same TPC Spec rating. This
way, your vehicle will continue to have tires that are
designed to give the same performance and vehicle
safety, during normal use, as the original tires.
GM's exclusive TPC Spec system considers over
a dozen critical specifications that impact the
overall performance of your vehicle, including
brake system performance, ride and handling,
traction control, and tire pressure monitoring
performance. GM's TPC Spec number is molded
onto the tire's sidewall by the tire manufacturer.