Soft, Spongy Brake Pedal on 2021 Kona

ClearTheCode admin answer: A soft or spongy brake pedal is a serious concern as it indicates a problem with your hydraulic braking system, which can severely compromise your stopping ability.

1. Primary Causes:
   • Air in the Brake Lines: This is the most common reason. Air is compressible, unlike brake fluid, so it causes a spongy feel. This can happen after brake work or if the fluid level drops too low.
   • Low Brake Fluid Level: If the brake fluid reservoir is low, it can introduce air into the system or indicate a leak.
   • Brake Fluid Leak: A leak anywhere in the brake lines, calipers, or wheel cylinders will cause a loss of pressure and a soft pedal. Check for fluid puddles under your car or wet spots near wheels.
   • Failing Master Cylinder: The master cylinder is responsible for generating hydraulic pressure. If its internal seals fail, fluid can bypass, leading to a soft pedal and reduced braking power.
   • Worn or Malfunctioning Calipers/Wheel Cylinders: While less common for a general spongy feel, a severely worn caliper or wheel cylinder could contribute.
2. Urgency: This is a critical safety issue. Your stopping distance will be increased, and braking effectiveness is severely compromised.
3. When to See a Shop:
   • Immediately. Do not delay. Driving with a soft brake pedal is extremely dangerous.
   • You should have your vehicle towed to a reputable mechanic. They will inspect the entire brake system for leaks, check the brake fluid quality and level, and diagnose the master cylinder and other components.
   • A brake system flush and bleed might resolve air in the lines, but a leak or failing component will require replacement.