What causes the brake light to illuminate?

[EmersonAnn]

The reasons for the brake light to illuminate are as follows: 1. The handbrake system of the motor vehicle is not fully released; 2. There is a shortage of brake fluid inside the vehicle's engine; 3. Leakage in the vehicle's master brake cylinder or brake fluid pipes; 4. There is air leakage in the vehicle's brake system; 5. Issues with the vehicle's brake pads or brake calipers in the brake system. Solution: It is necessary to safely pull the vehicle over to the side of the road at a safe speed, then set up a safety warning sign behind the vehicle, inspect the vehicle to identify the specific cause of the fault, and address it accordingly. Once resolved, the vehicle can be driven normally. Until the fault is eliminated, the vehicle must not continue to move forward, as this would increase the risk to the vehicle.