Which components are evaluated in the braking system?

The evaluation of the braking system specifically focuses on the components that are directly involved in the vehicle's ability to stop effectively and safely. Brake pads, rotors, and lines are critical elements of the braking system.

Brake pads are responsible for creating the friction needed to slow down or stop the vehicle when they press against the rotors. Rotors are the metal discs that the brake pads squeeze against, and their condition is paramount for effective braking. If the rotors are worn or warped, it can lead to decreased braking performance or even failure. Brake lines are crucial as they transport the brake fluid that transfers the force from the brake pedal to the calipers that press the pads against the rotors. Any leaks or weaknesses in the brake lines can severely compromise the functionality of the braking system.

In contrast, the other components listed do not pertain to the braking system. Windshield wipers and headlights are part of the vehicle’s visibility and safety equipment; fuel lines and exhaust pipes relate to the vehicle's fuel delivery and emissions systems; while tire tread and sidewalls are components of the tire safety and traction system. None of these components have the same direct role in the braking system as brake pads, rotors, and lines do.