U0137 2014 GMC Sierra Code - Lost Communication with Trailer Brake Control Module
Quick Answer
The diagnostic trouble code U0137 for a 2014 GMC Sierra indicates a communication failure between the vehicle's onboard computer system and the Trailer Brake Control Module (TBCM). Common causes include Faulty wiring or connectors leading to poor communication between the vehicle's computer system and the TBCM, Software issues or programming glitches affecting the communication protocol between the modules, Malfunctioning TBCM or related components. 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
- U0137 2014 GMC Sierra indicates Lost Communication with Trailer Brake Control Module.
- Common causes
- Common causes include Faulty wiring or connectors leading to poor communication between the vehicle's computer system and the TBCM, Software issues or programming glitches affecting the communication protocol between the modules, Malfunctioning TBCM or related components.
- 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 U0137 2014 GMC Sierra Description
The diagnostic trouble code U0137 for a 2014 GMC Sierra indicates a communication failure between the vehicle's onboard computer system and the Trailer Brake Control Module (TBCM). The TBCM is responsible for controlling the trailer brake system, ensuring smooth and effective braking when towing a trailer. When communication is lost with the TBCM, it can lead to issues with the trailer brake system, compromising the vehicle's towing capabilities and safety.
Common Causes of U0137 2014 GMC Sierra
- Faulty wiring or connectors leading to poor communication between the vehicle's computer system and the TBCM.
- Software issues or programming glitches affecting the communication protocol between the modules.
- Malfunctioning TBCM or related components.
- Water or moisture intrusion causing corrosion in the wiring or connectors.
- Physical damage to the wiring harness or connectors due to wear and tear.
Symptoms of U0137 2014 GMC Sierra
- Dashboard warning light indicating a communication error with the trailer brake control module.
- Inoperative trailer brake system or erratic trailer brake behavior.
- Loss of trailer brake functionality while towing.
- Poor braking performance when towing a trailer.
- Difficulty in controlling the trailer while braking.
How to Fix U0137 2014 GMC Sierra
- Perform a thorough inspection of the wiring harness, connectors, and TBCM to identify any visible damage or corrosion.
- Test the communication lines between the vehicle's computer system and the TBCM using a diagnostic scanner to pinpoint the exact location of the communication failure.
- Replace any damaged wiring, connectors, or components that are hindering communication.
- Clear the diagnostic trouble code from the vehicle's computer system using a scan tool and retest the trailer brake system for proper functionality.
- Verify that the communication has been restored and the trailer brake system is operating correctly before returning the vehicle to service.
Cost to Fix U0137 2014 GMC Sierra
The cost of repairing a lost communication issue with the trailer brake control module on a 2014 GMC Sierra can vary depending on the extent of the problem and the specific components that need to be replaced. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle specifications. Additionally, if the TBCM needs to be replaced, it may incur additional costs.
Need more information about the U0137 2014 GMC Sierra code?
Need more information on how to fix the U0137 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U0137 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U0137 2014 GMC Sierra Code
1. What does OBDII code U0137 mean for my 2014 GMC Sierra?
- This code indicates a communication problem between the vehicle's onboard computer system and the Trailer Brake Control Module.
2. What are the common symptoms of U0137 code in a 2014 GMC Sierra?
- Common symptoms include the trailer brakes not functioning properly, the trailer brake warning light illuminating on the dashboard, and potential issues with the trailer brake system.
3. What are the possible causes of the U0137 code in a 2014 GMC Sierra?
- The U0137 code may be caused by damaged wiring or connectors, a faulty Trailer Brake Control Module, a software glitch, or a problem with the vehicle's onboard computer system.
4. How can I diagnose the U0137 code in my 2014 GMC Sierra?
- Diagnosing the U0137 code typically involves using a professional OBDII scanner to retrieve the code, checking the trailer brake system for any visible damage, and inspecting the wiring and connectors for any issues.
5. Can I still drive my 2014 GMC Sierra with the U0137 code present?
- It is not recommended to drive with the U0137 code present, as it can affect the proper functioning of the trailer brake system and compromise safety while towing.
6. How can I repair the U0137 code in my 2014 GMC Sierra?
- Repairing the U0137 code may involve fixing or replacing damaged wiring or connectors, replacing the Trailer Brake Control Module if necessary, and clearing the code from the vehicle's system.
7. Are there any DIY tips for resolving the U0137 code in a 2014 GMC Sierra?
- DIY tips include checking for loose or damaged wiring, ensuring all connectors are securely attached, and consulting the vehicle's manual for specific troubleshooting steps.
8. Is it necessary to visit a mechanic for the U0137 code in my 2014 GMC Sierra?
- While some DIY troubleshooting is possible, it is recommended to seek professional help from a mechanic or dealership to accurately diagnose and repair the U0137 code to ensure proper functioning of the trailer brake system.
9. How much does it typically cost to fix the U0137 code in a 2014 GMC Sierra?
- The cost of fixing the U0137 code can vary depending on the underlying cause, but it may involve expenses for parts replacement, labor costs, and diagnostic fees from a mechanic or dealership.
10. Can the U0137 code in a 2014 GMC Sierra reoccur after being repaired?
- The U0137 code can reoccur if the root cause of the communication issue is not fully addressed during the repair process, highlighting the importance of thorough diagnosis and proper repairs.
Discuss the causes and fixes for U0137 2014 GMC Sierra OBDII Code
Code U0137 2014 GMC Sierra 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.