Can a 4S Store Replace a New Car's Flat Tire for Free?

[Zoey]

If a new car's tire bursts, it is generally recommended to first have it inspected at the tire brand's designated assessment center. If the issue is determined to be a quality problem, the tire can be replaced for free; otherwise, the owner will need to cover the replacement cost. Low Tire Pressure: When tire pressure is too low, the wheel's sinking amount increases, radial deformation intensifies, friction between the tire tread and the ground rises, rolling resistance increases, and the internal stress of the tire body also escalates. This leads to a rapid rise in tire body temperature, softening of the tread rubber, accelerated aging, and localized delamination of the tire body along with increased tread wear. Under such conditions, if the car continues to drive at high speeds on highways, these reactions will accelerate, significantly raising the risk of a tire blowout. Overinflated Tires: Excessive tire pressure increases the tension in the tire body's cord layers, hastening the fatigue process of the cords. Particularly when driving with overinflated tires while also overloading or speeding, the internal stress on the cords further increases. This causes the tire temperature to rise quickly, accelerates rubber aging, and reduces fatigue strength. As a result, severe wear in the center of the tread, sawtooth-like wear on the sidewall patterns, and cord layer breakage may occur, leading to a tire blowout.