What Causes the Squeaking Noise When Slowly Releasing the Brakes?
3 Answers
It is caused by the friction sound between the brake shoes and the disc or drum. Specific reasons: The friction sound between the brake shoes and the disc or drum, the presence of foreign objects between the brake drum or disc and the shoes, the quality of the brake shoes, high metal content or poor quality, and excessive foreign objects. Solution: The brake light switch is located above the brake pedal. When you slowly release the brakes, the faulty brake light switch will produce a squeaking noise. However, since the brake light switch is connected to other components inside the car, the noise from the brake light switch is amplified. Therefore, go to a 4S shop to resolve the issue. If they don't know what the problem is, you can suggest they first try spraying lubricant. If that doesn't work, then you can only apply for a replacement.
My car had this issue before, making a squeaking noise when slowly releasing the brakes. The main reason might be dust or small sand particles accumulated on the brake pads, causing noise during friction. In humid weather or after rain, the surface of the brake discs rusts, making it particularly prone to noise when releasing the brakes upon starting the car, but the sound goes away after driving for a while as the rust wears off. If the noise persists, it means the brake pads are severely worn and too thin, so they should be replaced. Ignoring this not only creates noise but could also damage the brake discs, leading to more expensive repairs. I learned a little trick: regularly clean the brake components inside the wheel hubs with a brush to reduce impurity buildup. Safety first—if you can't check the thickness yourself, take it to a repair shop for a professional inspection. Don't delay and compromise driving safety.
From my personal driving experience, unusual noises when releasing the brakes are mostly caused by mechanical component issues. The most common reason is insufficient lubricating grease on the brake calipers, causing poor rebound and squeaking when releasing the brakes. Secondly, uneven or heavily scratched brake disc surfaces can also create noise due to irregular friction. Long-term lack of maintenance can accelerate wear and shorten component lifespan. It's recommended to check the brake fluid condition to ensure proper pressure. For prevention, avoid frequent hard braking to reduce material damage caused by overheating. If you're handy, you can try applying specialized lubricant to the calipers, but avoid tampering with critical parts. If the problem persists, consult a mechanic for thorough cleaning or pad replacement.
