What does it mean if your brakes feel "spongy"?

When brakes feel "spongy," it indicates that there is likely air in the brake lines. This situation occurs because air bubbles can compress when pressure is applied to the brake pedal, which reduces the effectiveness of braking and creates that soft, squishy feeling. It can lead to longer stopping distances and decreased control of the vehicle. Addressing this issue involves properly bleeding the brake lines to remove any trapped air, ensuring a firm and responsive brake feel.

Other factors, such as brake fluid leaks or worn-out brake pads, could contribute to braking issues, but the specific sensation of sponginess is most directly associated with air in the brake lines.