
Soft Brake Pedal During Hard Braking
The brake pedal feels soft or spongy when applying hard braking, indicating a potential loss of hydraulic pressure or air in the brake system. This reduces stopping power and poses a serious safety risk.
Diagnosis Details
Possible Causes
Air in the brake lines (contaminated brake fluid or low fluid level)
Worn brake pads or glazed rotors reducing friction
Faulty brake master cylinder (internal bypass or seal failure)
Related OBD-II Codes
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What You Should Do
Immediately stop driving the vehicle.
Check brake fluid level and condition.
Bleed the brake system to remove air.
Inspect brake pads, rotors, and master cylinder.
If unsure, have a professional mechanic inspect and repair the brake system before driving again.
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
