U179A 2018 Chevrolet Silverado Code - Lost Communication with Hybrid/EV Powertrain Control Module 2
Quick Answer
The U179A diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado indicates that there is a communication issue with the Hybrid/EV Powertrain Control Module 2. Common causes include Faulty wiring or connectors, Malfunctioning Hybrid/EV Powertrain Control Module 2, Communication network issues within the vehicle. 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 2018 Chevrolet Silverado indicates Lost Communication with Hybrid/EV Powertrain Control Module 2.
- Common causes
- Common causes include Faulty wiring or connectors, Malfunctioning Hybrid/EV Powertrain Control Module 2, Communication network issues within the vehicle.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code U179A 2018 Chevrolet Silverado Description
The U179A diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado indicates that there is a communication issue with the Hybrid/EV Powertrain Control Module 2. This module is responsible for controlling various aspects of 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.
Common Causes of U179A 2018 Chevrolet Silverado
- Faulty wiring or connectors
- Malfunctioning Hybrid/EV Powertrain Control Module 2
- Communication network issues within the vehicle
- Software glitches or programming errors
- Electrical interference or signal disruption
Symptoms of U179A 2018 Chevrolet Silverado
- Check Engine Light illuminated
- Loss of power or reduced acceleration
- Inability to switch between hybrid or electric modes
- Erratic behavior of the hybrid or electric powertrain system
- Vehicle stalling or difficulty starting
How to Fix U179A 2018 Chevrolet Silverado
- Begin by conducting a thorough inspection of the wiring and connectors related to the Hybrid/EV Powertrain Control Module 2.
- Use a diagnostic scan tool to check for any stored trouble codes and attempt to establish communication with the control module.
- If wiring and connectors are in good condition, consider replacing the Hybrid/EV Powertrain Control Module 2 if it is found to be faulty.
- Perform a reprogramming or software update on the control module to ensure proper communication and functionality.
- Clear the DTC and perform a test drive to verify that the issue has been resolved.
Cost to Fix U179A 2018 Chevrolet Silverado
The typical repair costs for addressing a U179A code on a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty Hybrid/EV Powertrain Control Module 2 can range from $500 to $1000, including parts and labor. However, additional diagnostic time and labor charges may apply, with hourly rates typically ranging from $80 to $150. It is advisable to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the specific circumstances of the vehicle.
Need more information about the U179A 2018 Chevrolet Silverado code?
Need more information on how to fix the U179A 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U179A 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U179A 2018 Chevrolet Silverado Code
1. What does the OBDII code U179A mean on a 2018 Chevrolet Silverado?
The code U179A indicates "Lost Communication with Hybrid/EV Powertrain Control Module 2," meaning the vehicle's communication network has lost contact with this specific module.
2. What are the common symptoms of code U179A in a 2018 Chevrolet Silverado?
Symptoms may include warning lights on the dashboard, reduced power mode, poor fuel efficiency, or the vehicle failing to start.
3. What causes the U179A code to trigger?
Common causes include faulty wiring or connectors, module failure, network communication errors, or a damaged Hybrid/EV Powertrain Control Module 2.
4. Can driving with the U179A code cause further damage?
Yes, ignoring this code can lead to poor vehicle performance, potential damage to the hybrid/EV system, or complete loss of powertrain functionality.
5. How do you diagnose the U179A code on a 2018 Chevrolet Silverado?
Diagnosis involves using a scan tool to check for related codes, inspecting wiring and connectors, and testing the communication network and the affected module.
6. Is the U179A code specific to hybrid or electric vehicles?
Yes, this code is specific to hybrid and electric vehicles as it relates to the Hybrid/EV Powertrain Control Module.
7. What repairs might fix the U179A code?
Repairs can include fixing or replacing damaged wiring, cleaning or reconnecting connectors, reprogramming the module, or replacing the Hybrid/EV Powertrain Control Module 2.
8. How much does it cost to repair the U179A code issue?
Repair costs can vary widely but may range from $100 for minor wiring fixes to over $1,000 if the module needs replacement.
9. Can a software update resolve the U179A code?
In some cases, a software update for the Hybrid/EV Powertrain Control Module 2 may resolve communication issues.
10. Is it safe to clear the U179A code without repairing the issue?
Clearing the code without addressing the root cause is not recommended, as the issue will likely return and could lead to further complications.
Discuss the causes and fixes for U179A 2018 Chevrolet Silverado OBDII Code
Code U179A 2018 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.