What is the minimum safe thickness for brake pads to continue use?

The minimum safe thickness for brake pads to continue use is generally considered to be around 3 millimeters. At this thickness, there is typically enough material left for effective braking performance while still providing enough warning that replacement is necessary soon. Brake pads wear down over time due to friction, and having a minimum thickness helps ensure that the pads can effectively dissipate heat and create sufficient friction with the brake rotor. If the pads are worn down to 2 millimeters or less, it may compromise braking efficiency and safety.

Most manufacturers and safety guidelines recommend replacing brake pads before they reach this critical threshold to prevent damage to the rotor and maintain optimal braking performance. Thus, the choice of 3 mm aligns with industry standards for maintaining safe vehicle operation.