Engine-CodesGMC – P0575 2015 GMC Sierra

P0575 2015 GMC Sierra Code - Cruise Control Switch Signal Message Counter Incorrect

Quick Answer

The P0575 diagnostic trouble code (DTC) for a 2015 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 cruise control module. 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 2015 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 cruise control module.
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 13, 2024
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Code P0575 2015 GMC Sierra Description

The P0575 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates that the cruise control switch signal message counter is incorrect. This means that the vehicle's onboard computer has detected a discrepancy in the number of signals being sent by the cruise control switch. The cruise control system allows the driver to set a desired speed for the vehicle to maintain automatically, which can improve fuel efficiency and reduce driver fatigue on long trips. When the signal message counter is incorrect, it can lead to the cruise control system not functioning properly or at all.

OBDII Code P0575 2015 GMC Sierra - Cruise Control Switch Signal Message Counter Incorrect
P0575 2015 GMC Sierra Code - Cruise Control Switch Signal Message Counter Incorrect

Common Causes of P0575 2015 GMC Sierra

  1. Faulty cruise control switch
  2. Wiring issues or shorts in the cruise control circuit
  3. Malfunctioning cruise control module
  4. Communication errors between the cruise control system components
  5. Faulty onboard computer

Symptoms of P0575 2015 GMC Sierra

  1. Inoperative cruise control system
  2. Difficulty setting or maintaining a constant speed
  3. Unexpected engagement or disengagement of cruise control
  4. Illumination of the check engine light
  5. Loss of communication with the cruise control module

How to Fix P0575 2015 GMC Sierra

  1. Begin by conducting a thorough inspection of the cruise control switch, wiring, and module to identify any visible damage or loose connections.
  2. Use a diagnostic scan tool to retrieve the specific error codes and data related to the cruise control system.
  3. Test the cruise control switch for proper functionality and replace it if necessary.
  4. Check the wiring harness for any signs of wear or damage, repairing or replacing any compromised sections.
  5. If the issue persists, consider replacing the cruise control module or seeking professional assistance to diagnose and repair any underlying electrical issues.

Cost to Fix P0575 2015 GMC Sierra

The cost of repairing a P0575 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue. In general, the parts required for this repair, such as a new cruise control switch or module, can range from $50 to $200. Labor costs at an auto repair shop typically range from $80 to $150 per hour. The total cost of the repair could therefore be anywhere from $150 to $500 or more, depending on the extent of the problem and the shop's labor rates. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate for this repair.

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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 2015 GMC Sierra Code

What does OBDII code P0575 mean on a 2015 GMC Sierra?

1. P0575 indicates a problem with the cruise control switch signal, specifically that the signal message counter is incorrect or inconsistent. 2.

What are the symptoms of code P0575 in a 2015 GMC Sierra?

Common symptoms include the cruise control not engaging or functioning properly, a check engine light, and, in some cases, erratic vehicle speed regulation. 3.

What causes the P0575 code on a 2015 GMC Sierra?

The main causes are a faulty cruise control switch, damaged wiring or connectors, a malfunctioning clock spring, or issues with the powertrain control module (PCM). 4.

Can I still drive my 2015 GMC Sierra with code P0575?

Yes, but you may not be able to use the cruise control feature, and the check engine light will remain on. It’s best to address the issue promptly to avoid further complications. 5.

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

Start by scanning the vehicle with an OBDII scanner, inspect the cruise control switch for proper operation, and check for damaged wiring or bad connections in the circuit. 6.

How do I fix code P0575 on a 2015 GMC Sierra?

Repairs may involve replacing the cruise control switch, repairing damaged wiring, checking and replacing the clock spring if needed, or reprogramming the PCM in rare cases. 7.

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

Yes, it primarily affects the cruise control system, but it may also involve the PCM and potentially the vehicle's CAN (Controller Area Network) system. 8.

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

Repair costs can vary, ranging from $50-$150 for a switch replacement to $300-$500 if more extensive wiring repairs or PCM reprogramming are needed. 9.

Can a faulty clock spring cause code P0575 on a GMC Sierra?

Yes, a damaged clock spring can disrupt the cruise control switch signal, leading to the P0575 code. 10.

Will clearing the P0575 code with a scanner fix the problem?

Clearing the code may turn off the check engine light temporarily, but the issue will likely return if the underlying problem isn’t resolved.

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