Under what condition does brake fade typically occur?

Brake fade is a phenomenon that occurs when the braking system becomes less effective due to overheating. This typically happens when brakes are applied continuously without adequate cooling time in between applications. Continuous use generates excessive heat, which can lead to a reduction in friction between the brake pads and the brake discs (or drums), diminishing the braking power.

This effect is particularly common in situations that demand frequent braking, such as long downhill descents or in stop-and-go traffic. The heat buildup can create a condition where the brakes no longer respond as effectively, which can be dangerous for drivers.

While heavy rainfall, driving uphill, or icy road conditions can impact overall driving safety and braking effectiveness, they do not directly relate to the specific condition that causes brake fade, which is primarily tied to the continuous use of brakes without a chance to cool down.