What should be done if a flexible rubber brake hose shows small cracks?

When a flexible rubber brake hose exhibits small cracks, the appropriate response is to replace the hose. Brake hoses are critical components of the braking system, responsible for transferring brake fluid from the master cylinder to the brake calipers or wheel cylinders. Cracks in the rubber can compromise the integrity of the hose, potentially leading to leaks, reduced braking performance, or complete failure of the braking system.

Replacing the hose ensures that the vehicle maintains safe and effective braking capability. A hose showing damage is likely indicative of age, wear, or exposure to adverse conditions, and attempting to repair such a crucial component could result in dangerous outcomes. Therefore, replacing the damaged brake hose is the safest and most reliable course of action to maintain the vehicle's braking system integrity.