Engine-CodesHyundai – P0571 Hyundai

P0571 Hyundai Code - Brake Switch 1 Performance

Quick Answer

The P0571 Hyundai diagnostic trouble code (DTC) specifically relates to the performance of Brake Switch 1 in the vehicle. Common causes include Faulty brake switch, Wiring issues or shorts in the brake switch circuit, Brake pedal position sensor malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0571 Hyundai indicates Brake Switch 1 Performance.
Common causes
Common causes include Faulty brake switch, Wiring issues or shorts in the brake switch circuit, Brake pedal position sensor malfunction.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0571 Hyundai Description

The P0571 Hyundai diagnostic trouble code (DTC) specifically relates to the performance of Brake Switch 1 in the vehicle. The brake switch is a critical component in the vehicle's brake system that communicates with the vehicle's onboard computer to indicate when the brakes are being applied. When the brake pedal is depressed, the brake switch sends a signal to the computer, which then activates the brake lights and may also affect other vehicle systems like the cruise control or transmission shifting.

OBDII Code P0571 Hyundai - Brake Switch 1 Performance
P0571 Hyundai Code - Brake Switch 1 Performance

Common Causes of P0571 Hyundai

  1. Faulty brake switch
  2. Wiring issues or shorts in the brake switch circuit
  3. Brake pedal position sensor malfunction
  4. Corrosion or poor connections in the electrical system
  5. Issues with the vehicle's onboard computer

Symptoms of P0571 Hyundai

  1. Brake lights not working or staying on continuously
  2. Cruise control not engaging or disengaging properly
  3. Difficulty shifting gears in an automatic transmission
  4. Check engine light illuminated on the dashboard
  5. Possible ABS or traction control system malfunctions

How to Fix P0571 Hyundai

  1. Begin by locating the brake switch, which is typically located near the top of the brake pedal arm.
  2. Inspect the wiring and connections for any visible damage, corrosion, or loose connections.
  3. Test the brake switch using a multimeter to determine if it is functioning correctly.
  4. If the brake switch is found to be faulty, replace it with a new one following the manufacturer's instructions.
  5. Clear the DTC from the vehicle's computer using an OBD-II scanner and test the vehicle to ensure the issue has been resolved.

Cost to Fix P0571 Hyundai

The cost of repairing a P0571 Hyundai DTC can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing a brake switch can range from $50 to $150, with additional costs for labor. The total repair cost, including parts and labor, may range from $100 to $300. However, it is essential to consult with a professional mechanic to get a more accurate estimate based on your vehicle's make and model, as well as the extent of the repairs needed. Keep in mind that labor rates can vary significantly between different auto repair shops, so it's advisable to shop around for the best price.

Tech Notes for P0571 Hyundai









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When is the Code Detected?

The P0571 codes is set when the stop light switch does not turn off even once the vehicle is driven.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0571 Hyundai Code

1. What does the OBDII code P0571 mean on a Hyundai?

P0571 indicates a "Brake Switch 1 Performance" issue, meaning the vehicle's computer has detected a problem with the brake switch signal or its operation.

2. What are common symptoms of code P0571 in a Hyundai?

Symptoms may include the cruise control not functioning, brake lights staying on or not working, and possible poor brake pedal response.

3. What causes the P0571 code in a Hyundai?

Common causes include a faulty brake light switch, damaged wiring or connectors, misaligned brake switch, or an issue with the brake pedal mechanism.

4. Can I drive my Hyundai with a P0571 code?

While the car may still be drivable, safety systems like the brake lights or cruise control could be compromised, so it’s best to address the issue promptly.

5. How do I fix the P0571 code on my Hyundai?

Start by inspecting and replacing the brake light switch if defective. Check for damaged wiring, loose connections, or misalignment of the switch. Clear the code after repairs.

6. How much does it cost to fix a P0571 code in a Hyundai?

Replacing a brake light switch typically costs $50-$150, including parts and labor. Wiring repairs may cost more, depending on the extent of the damage.

7. Can a faulty brake light switch cause other problems?

Yes, a faulty switch can affect the brake lights, cruise control, and even transmission behavior in some vehicles due to incorrect brake signal input.

8. How do I test the brake light switch on my Hyundai?

You can test the brake light switch by checking for continuity with a multimeter and observing if the brake lights operate correctly when the pedal is pressed.

9. Will clearing the P0571 code fix the issue?

Clearing the code will not fix the underlying problem. The issue must be diagnosed and repaired before the code will stay cleared.

10. Can a P0571 code trigger other warning lights on my Hyundai?

Yes, it can potentially cause the check engine light, ABS warning light, or traction control light to illuminate, depending on the vehicle’s systems.

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