Haul with Confidence and Complete Control
Seeing the dreaded “Service Trailer Brake System” message on your dash? Experiencing erratic or non-responsive trailer brakes is more than an annoyanceโit’s a critical safety issue. When you’re towing thousands of pounds, you need absolute certainty that your braking system will perform flawlessly. This Trailer Brake Control Module (TBCM) is the definitive solution, engineered to restore the factory-level safety and performance your heavy-duty truck was built for. We take the guesswork out of the repair by pre-programming this unit to your truck’s specific VIN, ensuring it integrates seamlessly with your vehicle’s complex electronics right out of the box.
Common Symptoms & Your Definitive Solution
If you’re dealing with any of the following issues, a failing TBCM is the most likely culprit. This module is designed to be the direct fix for the persistent problems that compromise your towing safety.
- Persistent “Service Trailer Brake System” warning on the Driver Information Center (DIC)
- Trailer brakes failing to engage or engaging intermittently
- No output signal from the manual trailer brake slide control
- Diagnostic Trouble Codes (DTCs) such as C1512, C1522, or U0100 stored in the system
Installing this professionally programmed 2013-2014 Silverado Sierra trailer brake control module will resolve these issues, clearing the warning messages and restoring the safe, predictable braking performance you depend on for every haul.
Features & Tangible Benefits
- โ VIN-Programmed for Your Truck: We flash the module with the latest GM software using your vehicle’s VIN. This eliminates the need for an expensive trip to the dealership for programming and ensures perfect communication with your truck’s systems.
- โ True Plug-and-Play Installation: Because the programming is done beforehand, you can simply locate the old module on the frame rail, swap it with this one, and get back on the road. No special tools or dealer visits required.
- โ Restored Towing Safety: Regain the crucial ability to control your trailer’s brakes independently and in sync with your truck’s braking. This is essential for preventing trailer sway and ensuring safe stops, especially on steep grades or in emergency situations.
- โ OEM-Grade Reliability: This unit is a direct replacement for original part numbers 20850923 and 20964299, guaranteeing a perfect fit and function for all listed models.
- โ This unit is backed by our one-year replacement warranty.
An Expert’s Note on Towing Safety: I’ve seen firsthand what happens when a TBCM fails mid-trip. A client was hauling a 10,000-pound travel trailer through the mountains when his controller went out. Every downhill grade became a white-knuckle experience, relying solely on the truck’s brakes to slow the entire rig. It’s a dangerous situation that puts immense stress on the vehicle and driver. The key benefit of a pre-programmed module like this 2013-2014 Silverado Sierra trailer brake control module is not just convenienceโit’s about ensuring that when you install it, it works correctly from the very first stop. It’s the peace of mind you can’t put a price on.
Don’t compromise on the safety of your family, your cargo, or yourself. This is the reliable, straightforward solution to get your heavy-duty GM truck’s integrated trailer braking system working like new again. By providing your VIN at checkout, you ensure you receive a part that is 100% ready for your specific vehicle. Take control of your towing experience and order your 2013-2014 Silverado Sierra trailer brake control module today.
Frequently Asked Questions
Why is VIN programming necessary for this part?
The Trailer Brake Control Module is a smart device that must communicate with your truck’s other computers, like the BCM and ECM. Programming it to your specific VIN ensures it has the correct software and calibration for your vehicle’s options and systems, allowing for seamless integration and proper function without any additional dealer intervention.
Where is this module located on my truck?
For 2013-2014 Silverado and Sierra pickups, the TBCM is typically mounted on the driver’s side frame rail, towards the rear of the vehicle. On 2013 Suburban 2500 and Yukon XL 2500 models, it’s generally found on the driver’s side frame rail, closer to the middle of the vehicle.
Is this a difficult part to install?
No, the physical installation is straightforward for someone with basic mechanical skills. It typically involves disconnecting the electrical connector and unbolting the module from the frame. Since our module comes pre-programmed, it is a true plug-and-play electrical repair, making the process much simpler.
How do I provide my VIN after purchase?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically reply to your order confirmation email or send it through the platform’s messaging system. We cannot ship the part until we receive your VIN to program it.
Will this fix the ‘Service Trailer Brake System’ message for good?
In the vast majority of cases where the TBCM itself is the point of failure (as indicated by common symptoms and DTCs), this part is the definitive and permanent solution. It directly resolves the internal electronic faults that cause the warning message to appear.
My original part number is 20964299. Will this work?
Yes, absolutely. This module is a direct replacement for both part numbers 20850923 and 20964299. It is fully compatible and will function identically once programmed to your VIN.