OBD-II diagnostic trouble code
P0571Safe to drive
Cruise Control/Brake Switch A Circuit Malfunction
The brake pedal switch that's meant to cancel cruise control when you brake has an electrical fault, which can also affect brake light operation.
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Code names are compiled from open/standardized SAE and ISO references. Explanations, symptoms, causes and fixes are original. Covers generic (P0/C0/B0/U0) codes only — manufacturer-specific codes are planned for a future update.
Frequently asked questions
Can I drive with P0571?
In most cases, yes — P0571 is generally not an urgent safety issue and the car is usually safe to drive for a while. Still, get it checked soon, since the underlying cause can affect fuel economy or emissions the longer it's left.
How much does it cost to fix P0571?
The cost varies too much by cause and vehicle to give a single figure here — a diagnosis will narrow it down.
What causes P0571?
Reviewed by Artyom SemenovAutomotive Editor · Fact-checked by Yauheni Kapliarchuk, Editor-in-Chief