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, 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 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.

Treadwear

The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course.

For example, a tire graded 150 would wear one and

a half (1.5) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.

Traction – AA, A, B, C

The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire’s ability

to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.

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Chevrolet 2005 owner manual Uniform Tire Quality Grading, Treadwear 200 Traction AA Temperature a, Traction AA, A, B, C
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2005 specifications

The 2005 Chevrolet lineup presented a range of vehicles that were notable for their blend of performance, comfort, and advanced technology. One of the standout models was the Chevrolet Silverado, a full-size pickup truck that offered an impressive range of trims and configurations. With powerful V6 and V8 engine options, the Silverado was well-suited for both work and leisure. Its robust towing capacity and spacious cabin made it a favorite among truck enthusiasts who required utility without compromising on comfort.

Another highlight of 2005 was the Chevrolet Equinox, a mid-size crossover SUV that entered the market with a focus on practicality and versatility. With a spacious interior and flexible seating arrangements, the Equinox catered to families and active individuals alike. Its standard safety features, including anti-lock brakes and multiple airbags, underscored Chevrolet's commitment to passenger safety.

For those seeking a sportier option, the Chevrolet Corvette remained a symbol of American performance. The 2005 Corvette featured a sleek design and a powerful 6.0-liter V8 engine that delivered exhilarating acceleration. With its lightweight construction and advanced suspension system, the Corvette offered precision handling, making it a joy to drive on both the track and the open road. The interior was equally impressive, featuring high-quality materials and modern technology, including a premium sound system.

In terms of technology, Chevrolet was ahead of the curve in 2005. Many models came equipped with the OnStar system, providing features like navigation, emergency assistance, and stolen vehicle recovery. Additionally, the incorporation of advanced audio systems and Bluetooth connectivity options allowed drivers to stay connected while on the go.

Chevrolet also focused on fuel efficiency during this year, with several models featuring innovative engine designs and lightweight materials that improved overall gas mileage. The introduction of hybrid technology in certain models marked a step towards a more environmentally conscious lineup.

Overall, the 2005 Chevrolet models combined style, performance, and practicality, appealing to a broad audience of drivers. With a commitment to innovation and quality, Chevrolet solidified its status as a leader in the automotive industry during this era, paving the way for future advancements.
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