Engine-CodesChevrolet – U179A 2016 Chevrolet Silverado

U179A 2016 Chevrolet Silverado Code - Lost Communication with Hybrid/EV Powertrain Control Module 2

Quick Answer

The U179A diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that there is a communication issue with the Hybrid/EV Powertrain Control Module 2. Common causes include Faulty wiring or connectors leading to poor communication, Malfunctioning Hybrid/EV Powertrain Control Module 2, Software glitches or programming errors. 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
U179A 2016 Chevrolet Silverado indicates Lost Communication with Hybrid/EV Powertrain Control Module 2.
Common causes
Common causes include Faulty wiring or connectors leading to poor communication, Malfunctioning Hybrid/EV Powertrain Control Module 2, Software glitches or programming errors.
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 16, 2024
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Code U179A 2016 Chevrolet Silverado Description

The U179A diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado indicates that there is a communication issue with the Hybrid/EV Powertrain Control Module 2. This module is responsible for controlling and managing the hybrid or electric powertrain system in the vehicle. When communication is lost with this module, it can lead to a variety of performance issues and potentially affect the drivability of the vehicle.

OBDII Code U179A 2016 Chevrolet Silverado - Lost Communication with Hybrid/EV Powertrain Control Module 2
U179A 2016 Chevrolet Silverado Code - Lost Communication with Hybrid/EV Powertrain Control Module 2

Common Causes of U179A 2016 Chevrolet Silverado

  1. Faulty wiring or connectors leading to poor communication
  2. Malfunctioning Hybrid/EV Powertrain Control Module 2
  3. Software glitches or programming errors
  4. Issues with the communication network within the vehicle
  5. Water or corrosion damage affecting the module or connections

Symptoms of U179A 2016 Chevrolet Silverado

  1. Check engine light illuminated on the dashboard
  2. Reduced fuel efficiency
  3. Power loss or hesitation during acceleration
  4. Difficulty starting the vehicle
  5. Rough shifting or transmission issues

How to Fix U179A 2016 Chevrolet Silverado

  1. Perform a thorough diagnostic scan to retrieve the specific trouble codes and pinpoint the issue.
  2. Inspect wiring and connectors related to the Hybrid/EV Powertrain Control Module 2 for any damage or corrosion.
  3. Test the module itself for proper functionality or potential failures.
  4. Check for software updates or reprogramming that may address communication issues.
  5. Clear the trouble codes, perform a test drive, and recheck for any recurring issues to ensure the problem is resolved.

Cost to Fix U179A 2016 Chevrolet Silverado

The typical repair costs for addressing a U179A code on a 2016 Chevrolet Silverado can vary depending on the exact cause of the communication failure. Parts such as wiring, connectors, or a new control module may be required, along with labor costs for diagnosis and repair. On average, the repair for this issue could range from $200 to $600, including parts and labor.

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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 U179A 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code U179A in a 2016 Chevrolet Silverado?

- Common symptoms include loss of power, decrease in fuel efficiency, and potential issues with the hybrid or electric powertrain system.

2. What does the OBDII code U179A (Lost Communication with Hybrid/EV Powertrain Control Module 2) in a 2016 Chevrolet Silverado indicate?

- This code indicates a communication problem between the vehicle's onboard diagnostic system and the Hybrid/EV Powertrain Control Module 2.

3. What are some possible causes of the U179A code in a 2016 Chevrolet Silverado?

- Possible causes include damaged wiring, loose connections, faulty control module, software issues, or issues with the hybrid or electric powertrain system.

4. How can I diagnose the U179A code in my 2016 Chevrolet Silverado?

- Diagnosing this code typically involves checking the wiring connections, inspecting for any physical damage, and using a diagnostic scanner to communicate with the Control Module 2.

5. Is it safe to continue driving my 2016 Chevrolet Silverado with the U179A code?

- It is not recommended to continue driving the vehicle with this code present, as it can lead to further issues with the powertrain system and potentially cause safety concerns.

6. Can I reset the U179A code in my 2016 Chevrolet Silverado on my own?

- While you can attempt to clear the code using an OBDII scanner, it is important to address the underlying cause of the code to prevent it from reoccurring.

7. How much does it typically cost to repair the U179A code in a 2016 Chevrolet Silverado?

- The cost of repairs can vary depending on the exact cause of the code, but it may involve replacing damaged wiring, repairing connections, or even replacing the Control Module 2.

8. Are there any DIY repair tips for addressing the U179A code in a 2016 Chevrolet Silverado?

- DIY repair tips may include checking and securing wiring connections, inspecting for physical damage, and ensuring all components related to the powertrain system are functioning properly.

9. How long does it usually take to repair the U179A code in a 2016 Chevrolet Silverado?

- The repair time can vary based on the specific cause of the code and the complexity of the repair process, but it may take a few hours to a full day to address the issue.

10. Can the U179A code in a 2016 Chevrolet Silverado be a recurring problem?

- If the underlying cause of the code is not properly addressed, it can reoccur in the future. It is crucial to diagnose and repair the issue to prevent it from happening again.

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