P0571 2016 GMC Sierra Code - Cruise Control Brake Switch Circuit
Quick Answer
The P0571 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to a problem with the cruise control brake switch circuit. Common causes include Faulty cruise control brake switch, Damaged wiring or connectors in the brake switch circuit, Corrosion or debris affecting electrical connections. 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 2016 GMC Sierra indicates Cruise Control Brake Switch Circuit.
- Common causes
- Common causes include Faulty cruise control brake switch, Damaged wiring or connectors in the brake switch circuit, Corrosion or debris affecting electrical connections.
- 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.
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Code P0571 2016 GMC Sierra Description
The P0571 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to a problem with the cruise control brake switch circuit. This code indicates that there is a malfunction in the circuit that controls the activation and deactivation of the cruise control system when the brake pedal is pressed.
Common Causes of P0571 2016 GMC Sierra
- Faulty cruise control brake switch
- Damaged wiring or connectors in the brake switch circuit
- Corrosion or debris affecting electrical connections
- Malfunctioning ECM or other control module
- Issues with the brake pedal position sensor
Symptoms of P0571 2016 GMC Sierra
- Cruise control system not disengaging when brake pedal is pressed
- Check engine light illuminated
- Inability to set or maintain speed using cruise control
- Erratic cruise control behavior
- Loss of power or acceleration while driving
How to Fix P0571 2016 GMC Sierra
- Begin by diagnosing the root cause of the issue using a diagnostic scanner to retrieve the specific fault code.
- Inspect the cruise control brake switch and related wiring for any visible damage or corrosion. Replace the switch if necessary.
- Test the brake switch circuit for continuity and proper voltage using a multimeter to identify any electrical faults.
- Clear the DTC and reset the ECM to see if the issue persists after the repair.
- Road test the vehicle to confirm that the cruise control system functions correctly and that the code does not reappear.
Cost to Fix P0571 2016 GMC Sierra
The typical repair costs for addressing a P0571 code on a 2016 GMC Sierra may range from $100 to $300, including parts and labor. However, the actual cost can vary depending on the specific cause of the issue, the extent of the repairs needed, and the rates charged by auto repair shops in your area. Diagnostic time and labor rates typically range from $80 to $150 per hour, so it is advisable to obtain quotes from multiple shops to find the best price for the repair.
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Frequently Asked Questions about P0571 2016 GMC Sierra Code
What does the OBDII code P0571 mean on a 2016 GMC Sierra?
1. Code P0571 indicates an issue with the Cruise Control Brake Switch Circuit, which monitors the brake pedal's position to disable cruise control when the brakes are pressed. 2.
What are the common symptoms of code P0571 on a 2016 GMC Sierra?
Symptoms may include cruise control not functioning, brake lights staying on or off incorrectly, and the check engine light illuminating. 3.
What causes the P0571 code to appear on my GMC Sierra?
Common causes include a faulty brake switch, damaged wiring or connectors in the brake switch circuit, or a blown fuse. 4.
Can I still drive my 2016 GMC Sierra with a P0571 code?
Yes, but you may experience cruise control issues and potentially unsafe brake light operation, so it’s best to address the issue promptly. 5.
How do I fix the P0571 code on a 2016 GMC Sierra?
Inspect the brake switch, wiring, and connectors for damage or wear. Replace the brake switch if faulty and repair any damaged wiring as needed. 6.
How much does it cost to repair a P0571 code on a GMC Sierra?
Repair costs can vary but typically range from $50 to $200, depending on whether the brake switch or wiring needs replacement. 7.
Can a blown fuse trigger the P0571 code?
Yes, a blown fuse in the brake light or cruise control circuit can cause this code to appear. 8.
How do I test the brake switch on my 2016 GMC Sierra?
Use a multimeter to check the brake switch for proper continuity when the pedal is pressed and released. Replace the switch if it fails the test. 9.
Will a P0571 code cause my cruise control to stop working?
Yes, the cruise control system relies on the brake switch circuit to disengage when braking, so a malfunction can disable cruise control. 10.
Can a dirty or misaligned brake switch cause the P0571 code?
Yes, dirt or misalignment can prevent the brake switch from functioning correctly, triggering the P0571 code. Cleaning or adjusting the switch may resolve the issue.
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