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What is the tire model of the Buick LaCrosse?

1 Answers

BrantleyRose

07/29/25 7:10pm

The Buick LaCrosse has three tire specifications: 245/45R19, 235/55R17, and 235/50R18. In 245/45R19, the first number 245 represents the tire width of 245MM, 45 indicates the aspect ratio of the tire section is 45%, meaning the section height is 45% of the width, and 19 represents the rim diameter of 19 inches. The middle letter "R" stands for radial tire. In 235/55R17, the first number 235 represents the tire width of 235MM, 55 indicates the aspect ratio of the tire section is 55%, meaning the section height is 55% of the width, and 17 represents the rim diameter of 17 inches. The middle letter "R" stands for radial tire. In 235/50R18, the first number 235 represents the tire width of 235MM, 50 indicates the aspect ratio of the tire section is 50%, meaning the section height is 50% of the width, and 18 represents the rim diameter of 18 inches. The middle letter "R" stands for radial tire. The tire brand for the Buick LaCrosse is Michelin, featuring a closed-groove design, and the spare tire is non-full size. If you want to replace the tires yourself, you can follow these steps: Take out the spare tire and jack, place the jack under the frame of the tire to be replaced, ensuring the jack touches the metal part of the frame. Raise the jack until it supports the car. The jack should be positioned under the vehicle, and ensure it is at a right angle to the ground. Remove the hubcap, loosen the nuts counterclockwise. Do not fully loosen the nuts; just enough to eliminate resistance. When loosening the nuts for the first time, keeping the tire on the ground ensures that the nuts turn, not the tire. Turn the nuts counterclockwise until they are loose. Repeat this step for all lug nuts and then completely remove them. Place the new tire on the wheel hub, carefully aligning the tire rim with the wheel bolts. Install the lug nuts and tighten them by hand until all nuts are concealed. At this point, the tire replacement is complete. In addition to the model, tires also have the following common data: Tire cord material: Indicated by Chinese pinyin, such as M for cotton cord, R for rayon cord, N for nylon cord, G for steel cord, and ZG for steel radial cord tire. Speed rating: Indicates the maximum speed at which the tire can carry a specified load under specified conditions. Letters A to Z represent the certified speed ratings from 4.8km/h to 300km/h. Common speed ratings include: Q: 160km/h; H: 210km/h; V: 240km/h; W: 270km/h; Y: 300km/h. Rim specification: Indicates the rim specification compatible with the tire for practical use, such as standard rim 5.00F.

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