C0578

Park Brake Switch Stuck Open

Moderate severity

The EPB module has detected that the park brake operator switch remains in the open (released) state when an apply request is expected. Operation of the EPB by the driver is restricted.

Common causes

EPB switch contacts stuck open
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $70-330
Wiring break in switch circuit
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $70-330
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does C0578 mean?

C0578 means "Park Brake Switch Stuck Open". It is a generic OBD-II code that points to a fault in the chassis.

What are the most common causes of C0578?

epb switch contacts stuck open; wiring break in switch circuit; carbon or debris buildup preventing free movement — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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