U0137 2016 GMC Sierra Code - Lost Communication with Trailer Brake Control Module
Quick Answer
The U0137 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that there is a communication issue between the vehicle's onboard computer system and the Trailer Brake Control Module (TBCM). Common causes include Corrosion or damage to wiring connecting the TBCM to the vehicle's computer, Faulty TBCM, Software glitch in the vehicle's computer system. 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 2016 GMC Sierra indicates Lost Communication with Trailer Brake Control Module.
- Common causes
- Common causes include Corrosion or damage to wiring connecting the TBCM to the vehicle's computer, Faulty TBCM, Software glitch in the vehicle's computer system.
- 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 2016 GMC Sierra Description
The U0137 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that there is a communication issue between the vehicle's onboard computer system and the Trailer Brake Control Module (TBCM). The TBCM is responsible for managing the trailer brake system, ensuring proper braking performance while towing. When communication is lost with this module, it can lead to a variety of issues related to the trailer brake system.
Common Causes of U0137 2016 GMC Sierra
- Corrosion or damage to wiring connecting the TBCM to the vehicle's computer
- Faulty TBCM
- Software glitch in the vehicle's computer system
- Loose or disconnected wiring connections
- Water damage to the TBCM or wiring
Symptoms of U0137 2016 GMC Sierra
- Dashboard warning light indicating a communication error
- Inoperable trailer brake system
- Erratic behavior in the trailer brake system
- Poor braking performance while towing a trailer
How to Fix U0137 2016 GMC Sierra
- Perform a visual inspection of the wiring connecting the TBCM to the vehicle's computer and repair any damaged or corroded wires.
- Check the TBCM for proper functioning and replace if necessary.
- Clear the DTC from the vehicle's computer system using a diagnostic scanner.
- Test the trailer brake system to ensure proper communication and functionality.
- Reset the vehicle's computer system to re-establish communication with the TBCM.
Cost to Fix U0137 2016 GMC Sierra
The typical repair costs for addressing the U0137 code on a 2016 GMC Sierra can vary depending on the extent of the issue and the specific repairs needed. On average, the parts for this repair, such as a new TBCM or wiring components, can range from $200 to $500. Labor costs can also vary, with hourly rates typically between $80 and $150. In total, the repair for this communication error can cost between $300 and $800, but it's advisable to check with local auto repair shops for a more accurate estimate based on your specific vehicle and location.
Need more information about the U0137 2016 GMC Sierra code?
Need more information on how to fix the U0137 2016 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U0137 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about U0137 2016 GMC Sierra Code
1. What does the OBDII code U0137 mean on a 2016 GMC Sierra?
The U0137 code indicates a loss of communication with the Trailer Brake Control Module (TBCM), meaning the module is not transmitting data to other components.
2. What are common symptoms of the U0137 code on a 2016 GMC Sierra?
Symptoms may include the trailer brake system not functioning, brake warning lights on the dashboard, or a “Service Trailer Brake System†message.
3. What causes the U0137 code on a 2016 GMC Sierra?
Common causes include a faulty Trailer Brake Control Module, damaged wiring or connectors in the communication circuit, or issues with the CAN (Controller Area Network) bus system.
4. Can a blown fuse cause the U0137 code on a 2016 GMC Sierra?
Yes, a blown fuse related to the Trailer Brake Control Module can interrupt communication and trigger the U0137 code.
5. How is the U0137 code diagnosed on a 2016 GMC Sierra?
A mechanic will check for other related codes, inspect the wiring and connectors to the TBCM, test the CAN bus system, and verify the module's functionality.
6. Can I still drive my 2016 GMC Sierra with the U0137 code?
Yes, the truck can still be driven, but the trailer brake system may not work. This can be unsafe if towing a trailer.
7. How do I fix the U0137 code on my 2016 GMC Sierra?
Repairs may include replacing the Trailer Brake Control Module, repairing damaged wiring or connectors, or resetting the CAN communication system.
8. How much does it cost to repair the U0137 code on a 2016 GMC Sierra?
Costs can vary, but replacing the Trailer Brake Control Module typically ranges from $200 to $500, plus labor.
9. Can a software update fix the U0137 code on a 2016 GMC Sierra?
In some cases, a software update for the TBCM or related modules may resolve the communication issue if it’s caused by a programming error.
10. How can I prevent the U0137 code from occurring on my 2016 GMC Sierra?
Regularly inspect the trailer brake wiring and connectors for damage or corrosion, and ensure the TBCM is securely mounted and functioning properly.
Discuss the causes and fixes for U0137 2016 GMC Sierra OBDII Code
Code U0137 2016 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.