What Causes the Humming Sound When Driving at Low Speed?

[Brad]

Vehicle driving with a humming sound is mainly caused by the following reasons: 1. Excessive tire pressure causing abnormal noise. During daily use, the tire pressure should be adjusted within the standard range (generally 2.3bar-2.5bar). If the tire pressure is too high, it will cause severe wear on the tire tread, reduce the tire's shock absorption and cushioning performance, and significantly increase tire noise. 2. Abnormal tire wear causing noise. The tire tread comes into contact and friction with the ground. If the tread wears unevenly with bumps, it will produce a humming sound. 3. Damaged wheel hub bearing causing noise. Worn wheel hub bearings will produce a humming sound, mainly due to long-term use leading to wear and looseness. During daily use, avoiding severe impacts on the wheels and prolonged water exposure can help protect the wheel hub bearings.