Different Size Tires and Wheels; Uniform Tire Quality Grading; Vehicle Care- Page 299

2011 Buick Regal User Manual

Model Year
2014 Dodge Charger SRT Owner Manual

Table of Contents

In Brief
Seats and Restraints
Instruments and Controls
Driving and Operating
Vehicle Care
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Black plate (59,1)

Buick Regal Owner Manual - 2011

Vehicle Care

10-59

Different Size Tires and
Wheels

If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, and electronic stability
control, the performance of these
systems can also be affected.

{

WARNING

If different sized wheels are used,
there may not be an acceptable
level of performance and safety
if tires not recommended for
those wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems

(Continued)

WARNING (Continued)

developed for the vehicle, and
have them properly installed by
a GM certified technician.

See

Buying New Tires on

page 10

57

and

Accessories and

Modifications on page 10

3

for

additional information.

Uniform Tire Quality
Grading

Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:

Treadwear 200 Traction AA
Temperature A

The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration

(NHTSA), which grades tires
by treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter-type snow
tires, space-saver, or temporary
use spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.

While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.