Why does the tire pressure warning light still come on after repairing a tire?
1 Answers
Tire pressure returns to normal, but a tire pressure reset is required afterward. Generally, after repairing the tire and inflating it to the correct pressure, long-pressing the tire pressure reset button will clear the warning light on the dashboard. If the reset fails, it usually indicates that there is still a tire with insufficient pressure. If all tires have adequate pressure, a diagnostic tool should be used to read the fault codes. Tire pressure, strictly speaking, refers to the air pressure inside the tire. In terms of car maintenance, the engine is the heart of the car—its failure means the end of the car's life—while tire pressure is like the car's blood pressure. The level of tire pressure plays a crucial role in the car's performance and power. Air pressure is the lifeblood of a tire. Both excessive and insufficient pressure will shorten the tire's lifespan. Insufficient pressure increases tire deformation, leading to cracks on the sidewalls and causing flexing movements, which generate excessive heat, accelerate rubber aging, fatigue the cord layers, and break the cords. It also increases the tire's contact area, speeding up wear on the tire shoulders. Excessive pressure overstretches the tire cords, reducing the tire's elasticity and increasing the load on the car while driving. In case of impact, it may cause internal cracks or blowouts. Additionally, high pressure accelerates tread wear and reduces puncture resistance.
