Engine-CodesGMC – P0575 2016 GMC Sierra

P0575 2016 GMC Sierra Code - Cruise Control Switch Signal Message Counter Incorrect

Quick Answer

The P0575 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that the cruise control switch signal message counter is incorrect. Common causes include Faulty cruise control switch, Wiring issues or shorts in the cruise control circuit, Malfunctioning electronic control module (ECM). 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
P0575 2016 GMC Sierra indicates Cruise Control Switch Signal Message Counter Incorrect.
Common causes
Common causes include Faulty cruise control switch, Wiring issues or shorts in the cruise control circuit, Malfunctioning electronic control module (ECM).
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 14, 2024
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Code P0575 2016 GMC Sierra Description

The P0575 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that the cruise control switch signal message counter is incorrect. This means that the vehicle's onboard computer has detected an issue with the signal being sent from the cruise control switch. The cruise control system allows the driver to set a desired speed for the vehicle to maintain automatically, providing convenience and reducing driver fatigue on long trips.

OBDII Code P0575 2016 GMC Sierra - Cruise Control Switch Signal Message Counter Incorrect
P0575 2016 GMC Sierra Code - Cruise Control Switch Signal Message Counter Incorrect

Common Causes of P0575 2016 GMC Sierra

  1. Faulty cruise control switch
  2. Wiring issues or shorts in the cruise control circuit
  3. Malfunctioning electronic control module (ECM)
  4. Corrosion or damage to cruise control system components
  5. Software glitches in the vehicle's onboard computer

Symptoms of P0575 2016 GMC Sierra

  1. Inoperative cruise control system
  2. Cruise control system engages intermittently
  3. Dashboard warning light related to cruise control
  4. Vehicle speed fluctuations while cruise control is engaged

How to Fix P0575 2016 GMC Sierra

  1. Begin by conducting a thorough inspection of the cruise control switch, wiring, and related components to identify any visible damage or issues.
  2. Use a multimeter to test the continuity of the cruise control switch and wiring to ensure proper electrical connections.
  3. If necessary, replace the cruise control switch with a new, OEM-approved part to restore proper functionality.
  4. Clear the DTC from the vehicle's onboard computer using a diagnostic scanner to reset the system and ensure the code does not reappear.
  5. Test drive the vehicle to verify that the cruise control system is operating correctly and that the signal message counter is now reading accurately.

Cost to Fix P0575 2016 GMC Sierra

The typical repair costs for addressing a P0575 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty cruise control switch or repairing wiring issues may cost between $100 and $300, including parts and labor. However, if the problem is more complex and requires ECM reprogramming or replacement, the cost could range from $300 to $800 or more.

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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 P0575 2016 GMC Sierra Code

1. What does the OBDII code P0575 mean on a 2016 GMC Sierra?

P0575 indicates an issue with the cruise control switch signal, specifically that the message counter is incorrect or not being received properly by the vehicle's control module.

2. What are the symptoms of P0575 in a 2016 GMC Sierra?

Common symptoms include the cruise control not engaging, intermittent cruise control operation, or the cruise control system being completely inoperative.

3. What causes the P0575 code on a 2016 GMC Sierra?

Possible causes include a faulty cruise control switch, damaged wiring or connectors in the cruise control circuit, a malfunctioning clock spring, or an issue with the vehicle's powertrain control module (PCM).

4. Can a failing clock spring trigger a P0575 code?

Yes, a damaged or worn clock spring can interrupt the cruise control signal, leading to the P0575 code.

5. How do I diagnose the P0575 code on my GMC Sierra?

Diagnosis typically involves using an OBDII scanner to confirm the code, visually inspecting the cruise control switch and its wiring, testing the clock spring, and checking for any software updates for the PCM.

6. Can I still drive my 2016 GMC Sierra with a P0575 code?

Yes, the vehicle is typically safe to drive; however, the cruise control system may not operate until the issue is resolved.

7. How much does it cost to repair a P0575 code on a GMC Sierra?

Repair costs vary depending on the cause, ranging from $100–$300 for a cruise control switch replacement to higher costs if the PCM or clock spring needs replacement.

8. Can a software update fix the P0575 code?

In some cases, a software update for the PCM may resolve communication issues causing the P0575 code.

9. How do I reset the P0575 code on my 2016 GMC Sierra?

After repairing the underlying issue, you can clear the code using an OBDII scanner. If the problem persists, the code will reappear.

10. Is the P0575 code related to other systems in the vehicle?

Yes, the cruise control system interacts with the PCM, brake pedal switch, and clock spring, so issues in these areas may also trigger the code.

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