Which of the following factors can negatively impact braking performance during vehicle operation?

Excessive heat buildup significantly impacts braking performance due to the nature of how braking systems function. When a driver applies the brakes, friction is generated between the brake pads and the rotors, converting kinetic energy into heat to slow the vehicle. If this heat is not dissipated properly, it can lead to a phenomenon known as brake fade, where the effectiveness of the brake system diminishes. This is because the materials used in brakes can lose their friction properties when they become too hot, resulting in longer stopping distances or a total loss of braking power in extreme cases.

In contrast, using the correct brake fluid, maintaining the brake system, and ensuring uniform tire pressure contribute positively to braking performance. Correct brake fluid prevents moisture buildup and maintains the system’s integrity. Regular maintenance ensures that all components are functioning as intended, and uniform tire pressure is crucial for optimal traction and handling, especially during braking maneuvers. Each of these elements supports the effectiveness of the braking system rather than detracts from it.