What is indicated by a driver needing to pump the brake frequently?

When a driver needs to pump the brake frequently, it typically indicates that there may be an issue with the brake system, such as low brake fluid, air in the brake lines, or worn brake pads. This behavior suggests a lack of reliable control over the vehicle's braking, which is critical for safe driving. Consistent and effective braking is essential; if a driver has to pump the brakes to achieve stopping power, it signifies that their control over the vehicle is compromised. This is why the assessment of control is categorized as "Bad," reflecting the potentially dangerous situation that could arise from inadequate braking performance. In contrast, control would be assessed as good, fair, or excellent if the brakes were functioning properly without the need for pumping, allowing for smooth and predictable deceleration.