What should be done if a vehicle's brakes feel spongy?

When a vehicle's brakes feel spongy, it's crucial to first check for air in the brake lines and the fluid level. Sponginess in the brake pedal often indicates that there is air within the hydraulic brake system. Air in the lines can compress under pressure, which results in a lack of effective braking force, leading to that spongy feel. Ensuring that the brake fluid is at the correct level is also essential, as low fluid can allow for air to enter the system or may cause inadequate brake performance.

While it is important to maintain your brake components, such as pads, the direct cause of sponginess is commonly related to the hydraulic system—hence the need to address any air or fluid issues first. Inspecting the tires for improper inflation or changing the brake fluid entirely can be part of routine maintenance, but they do not directly address the symptom of sponginess in the brake pedal. Using the right approach to resolve the immediate issue will ensure better braking performance and safety.