Why does the car's tire pressure warning light come on when the tires aren't low on air?

[KaydenFitz]

When a car's tire pressure warning light comes on but the tires aren't low on air, it's usually due to excessive tire pressure. This is especially common in summer when high ground temperatures combined with friction between the tires and road surface can cause tire pressure to rise, triggering the tire pressure monitoring system alarm. Hazards of excessive tire pressure: Reduced tire friction and adhesion, affecting braking performance; Causes steering wheel vibration and pulling, reducing driving comfort; Accelerates wear on the central tread pattern, shortening tire lifespan; Increases vehicle vibration, indirectly affecting the lifespan of other components; Causes excessive stretching deformation of tire cords, reducing tire elasticity and increasing the load on the vehicle during driving; Decreases puncture resistance. When encountering sharp objects like nails or glass on the road, they can easily penetrate the tire, with impacts potentially causing internal cracks or blowouts leading to tire bursts.