What Causes the Squeaking Sound When Lightly Pressing the Brake?

[Scott]

If there is a slight squeaking sound at the pedal position when lightly pressing the brake while the vehicle is stationary, it is mostly the squeaking sound from the return spring of the brake light switch on the brake pedal. If there is a noticeable squeaking sound when pressing the brake while the vehicle is moving at low speed, it is likely the sound coming from the brake disc position. Many new cars or those that have just had their brake pads replaced may experience such abnormal braking noises during driving. Additional Information: 1. Braking System: Modern braking systems mainly consist of drum brakes and disc brakes. Drum brakes are now mostly used in commercial vehicles, while disc brakes are commonly used in ordinary small cars. The braking system is directly related to the driving safety of the vehicle and is a high-wear component, so regular maintenance checks and part replacements are necessary. 2. Replacement Cycle: Typically, brake pads should be replaced every 60,000 to 80,000 kilometers, while brake discs should be replaced every 100,000 to 120,000 kilometers.