P0571 — Cruise Control/Brake Switch A Circuit Malfunction
Category: Powertrain Severity: Medium
Updated:
DTC code P0571 means: Cruise Control/Brake Switch A Circuit Malfunction. It falls under the "Powertrain" category, with an estimated severity of Medium. Common causes include misadjusted or failed brake pedal switch, broken plastic pedal stop and loose connector; it's worth confirming the diagnosis before replacing parts.
Possible causes
- Misadjusted or failed brake pedal switch
- Broken plastic pedal stop
- Loose connector
- Brake light fuse
Symptoms
- Cruise control doesn't work
- Brake lights always on or never on
- Shifter stuck in Park (automatic)
How to diagnose it step by step
- Check the brake lights.
- Inspect the pedal stop.
- Test the switch pedal-up and pedal-down.
- Adjust or replace the switch.
How to fix it
Check that the brake lights work and adjust or replace the pedal switch. Also check the rubber/plastic pedal stop.
Estimated repair cost
Brake switch: $15–80.
Frequently asked questions
What does DTC code P0571 mean?
Cruise Control/Brake Switch A Circuit Malfunction.
Is code P0571 serious?
Severity Medium. Not urgent, but worth diagnosing to avoid bigger damage.
Can I keep driving with code P0571?
Only if the brake lights work correctly.
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