Chevrolet 2009 Silverado 1500 Pickup Spezifikationen PDF herunterladen (Seite 496)

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101

Different Size Tires and Wheels

If you add wheels or tires that are a different size than

your original equipment wheels and tires, this could affect

the way your vehicle performs, including its braking, ride

and handling characteristics, stability, and resistance to

rollover. Additionally, if your vehicle has electronic

systems such as anti-lock brakes, rollover airbags,

traction control, and electronic stability control, the

performance of these systems can be affected.

{ CAUTION:

If you add different sized wheels, your vehicle may

not provide an acceptable level of performance and

safety if tires not recommended for those wheels

are selected. You may increase the chance that you

will crash and suffer serious injury. Only use GM

speciﬁc wheel and tire systems developed for your

vehicle, and have them properly installed by a GM

certiﬁed technician.

See Buying New Tires on page 5-84 and Accessories

and Modiﬁcations on page 5-4 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.

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