C0571Active Brake Assist Performance
The brake assist or driver assistance module has detected that brake assist performance is degraded. The system may fail to autonomously build pressure during emergency braking and emergency brake assist functions are limited.
Can I keep driving? Yes
You can keep driving normally. Schedule a check soon so emissions and performance are not affected.
Sistema Afectado
Chasis · ABS, frenos y suspensión
Afecta el chasis: sensores ABS, control de tracción, frenos o suspensión.
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- ABS warning light on ESC/stability control deactivated Possible reduced brake assist Speedometer may behave erratically
Possible Causes
The components or conditions that trigger this code
- 1Active booster slow or weak Secondary fault on related sensor System calibration required after repair
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: hard. Estimated time: 1-5 hours. Estimated cost: €200-€
- 2Professional repair recommended
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
ABS / brake sensors
* Diagnosis only: $50–$150
Quick Info
Dig Deeper
Videos, images and service manuals
Have Another Code?
Look it up directly: