What to Do if There Are Small Cracks on Car Tires?
2 Answers
If cracks appear on the tires, it is necessary to assess the depth of the cracks. Cracks shorter than 6 millimeters can be repaired at a maintenance shop. Otherwise, the tire needs to be replaced. If the repaired tire is a front tire, it is recommended to swap it with an unrepaired rear tire to minimize the risk of a blowout. If the tire shows signs of aging, with numerous small cracks at the base of the tread grooves or on the sidewalls that are close to damaging the tire body, it is necessary to replace the tire promptly. Rubber ages over time, and most tire manufacturers generally recommend replacement every 3 years.
When small cracks appear on my car tires, I believe the first priority is to assess safety. Small cracks may result from tire aging or excessive wear, such as prolonged use in high-temperature conditions. If the cracks are shallow and only on the tread surface, there might be no immediate need to panic. However, deep cracks or those located on the sidewalls pose a higher risk, as they can easily lead to blowouts while driving. I usually use the coin test to check the depth: insert a one-yuan coin into the crack—if it covers the tread pattern, the tire must be replaced. Generally, tires have a lifespan of about four to five years, and using them beyond this period carries significant risks. I recommend visiting a professional repair shop for an inspection rather than waiting for a minor issue to escalate. For prevention, I make it a habit to park in shaded areas to avoid direct sunlight and maintain standard tire pressure, which helps prolong tire health. In short, safety comes first—never compromise on cost or overlook these details.
