Engine-CodesChevrolet – P064F 2018 Chevrolet Silverado

P064F 2018 Chevrolet Silverado Code - Unauthorized Software/Calibration Detected

Quick Answer

The P064F diagnostic trouble code (DTC) in a 2018 Chevrolet Silverado indicates that unauthorized software or calibration has been detected in the vehicle's engine control module (ECM). Common causes include Aftermarket performance modifications, Incorrect software updates, Tampering with the 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
P064F 2018 Chevrolet Silverado indicates Unauthorized Software/Calibration Detected.
Common causes
Common causes include Aftermarket performance modifications, Incorrect software updates, Tampering with the 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 15, 2024
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Code P064F 2018 Chevrolet Silverado Description

The P064F diagnostic trouble code (DTC) in a 2018 Chevrolet Silverado indicates that unauthorized software or calibration has been detected in the vehicle's engine control module (ECM). This code typically occurs when the ECM detects a discrepancy between the expected software or calibration and what is actually present in the system. This can lead to various performance issues and potentially compromise the vehicle's overall functionality.

OBDII Code P064F 2018 Chevrolet Silverado - Unauthorized Software/Calibration Detected
P064F 2018 Chevrolet Silverado Code - Unauthorized Software/Calibration Detected

Common Causes of P064F 2018 Chevrolet Silverado

  1. Aftermarket performance modifications
  2. Incorrect software updates
  3. Tampering with the ECM
  4. Electrical issues affecting the ECM
  5. Faulty ECM

Symptoms of P064F 2018 Chevrolet Silverado

  1. Rough idling
  2. Stalling
  3. Poor acceleration
  4. Decreased fuel efficiency
  5. Engine misfires

How to Fix P064F 2018 Chevrolet Silverado

  1. Scan the vehicle's ECM to retrieve the specific details of the unauthorized software or calibration.
  2. Revert the ECM back to its original software or calibration settings.
  3. Inspect for any aftermarket modifications or tampering and remove them if necessary.
  4. Perform a thorough inspection of the vehicle's electrical system to ensure there are no underlying issues affecting the ECM.
  5. Clear the DTC and perform a test drive to verify that the issue has been resolved.

Cost to Fix P064F 2018 Chevrolet Silverado

The cost of repairing the P064F code in a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the repair costs for this type of problem can range from $200 to $500, including parts and labor. However, it's important to note that the actual cost may be higher if additional repairs or replacements are needed. Additionally, the diagnosis time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate.

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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.

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