Why Does the Car Make Noise When Braking?
3 Answers
There are several reasons why a car may produce abnormal noises when braking: 1. The vehicle may be equipped with ABS. When braking, you might sometimes feel a rebound, especially on uneven roads, which can even cause a jerking sensation. This is a normal phenomenon. If it's not due to ABS, it is recommended to have it checked at a 4S shop. 2. The most common reason for squeaky brakes is that the brake pads have worn thin, causing direct contact between the brake drum and the vehicle. Friction between the metal parts leads to noise. If the brake pads are too thin, a warning indicator will light up, but sometimes it won't illuminate until the preset limit is reached. If the brake pads are found to be normal upon inspection, it means the vehicle can be driven as usual.
When I first bought my car, there was always a squeaking sound when I stepped on the brakes, especially when parking, which made me quite nervous. Later, I figured out that it was mostly due to severely worn brake pads. The metal piece inside rubbing against the brake disc would produce that sharp sound to remind you it's time for a replacement. Another possibility is that small debris like dust or tiny stones got into the brake components, especially after driving through construction sites or muddy roads. Another scenario is after rain, when the brake discs are wet, the sound can occur as the moisture evaporates. I must say, never take it lightly—if left unchecked, this noise can lead to longer braking distances, which is especially dangerous on highways. It’s best to have a professional check the brake pad thickness every six months to ensure safe driving. I’ve made it a habit now, and it’s saved me a lot of trouble.
I often help friends with car repairs, and when it comes to the topic of squeaky brakes, the most common cause is rust or dirt on the surface of the brake pads and rotors, especially if the car hasn't been driven for a while. Or, new brake pads may produce noise during the break-in period, which usually disappears after a few hundred kilometers. If there's a grinding sound accompanied by vibration when braking, it might indicate uneven brake rotors or loose components. I recommend starting with the simplest solution: try cleaning the dust around the brake rotors yourself. If that doesn't work, visit a reliable repair shop as soon as possible for an inspection—don't delay, as it could affect braking performance. Every driver knows that even minor issues with the braking system can amplify the risk of accidents.
