Restore Safe and Reliable Towing Control
Seeing the dreaded “Service Trailer Brake System” message on your dash is more than an annoyance—it’s a critical safety warning. When you’re hauling heavy equipment, a camper, or a boat, you need absolute confidence that your trailer brakes will respond instantly. This Trailer Brake Control Module (TBCM) is the definitive solution to restore that confidence, arriving at your door pre-programmed specifically for your truck’s VIN. Forget the dealership hassle and diagnostic guesswork; this is the direct-fit, ready-to-install fix that gets you back on the road safely.
Common Symptoms & Your Definitive Solution
If your truck is experiencing issues with its integrated trailer brake system, you’re likely facing a failing TBCM. Symptoms often include:
- The persistent “Service Trailer Brake System” warning on the Driver Information Center (DIC).
- The trailer brake gain adjustment failing to respond or showing “—“.
- Trailer brakes that don’t engage at all or apply erratically.
- Diagnostic Trouble Codes (DTCs) such as C1512, C1522, or other communication faults.
This module is the core of your truck’s towing safety system. Our process eliminates the most common failure point: incorrect programming. By flashing this 2013-2014 Silverado Sierra Trailer Brake Control Module with the latest GM software matched to your VIN, we ensure it communicates flawlessly with your truck’s other computers right out of the box.
Features & Tangible Benefits
- ✔ VIN-Specific Programming: We flash the module to your exact vehicle before shipping. This guarantees a true plug-and-play installation with no need for an expensive trip to the dealer.
- ✔ Latest GM Software Updates: Your module arrives with the most current factory software, ensuring optimal performance, reliability, and communication with other vehicle systems.
- ✔ Restores Full Functionality: Regain precise control over your trailer’s brakes and clear frustrating error messages from your dash for good.
- ✔ Direct-Fit Replacement: Engineered to mount in the factory location on the frame (LH rear for pickups, LH middle for SUVs) using the original hardware and connectors.
- ✔ Cross-Reference Compatibility: A direct replacement for part numbers 20964299 and 20850923, ensuring you get the correct component.
- ✔ This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming
“Many truck owners try to save a few dollars by pulling a module from a salvage yard, only to find it doesn’t work. The reason is simple: these modules are ‘locked’ to the original truck’s VIN and options. A used module, or even a new one off the shelf, can’t properly talk to your Body Control Module or Engine Control Module. It will cause communication errors and won’t operate the brakes. Our VIN programming service isn’t just a convenience; it’s the essential step that makes this repair successful, saving you time, money, and immense frustration.”
Don’t compromise on the safety of your truck, your trailer, and everyone else on the road. By installing this professionally programmed 2013-2014 Silverado Sierra Trailer Brake Control Module, you are not just replacing a part; you are restoring a critical safety system to factory-perfect operation. Get the job done right the first time and tow with the complete peace of mind you deserve.
Frequently Asked Questions
Why do I have to provide my VIN?
Your truck’s Vehicle Identification Number (VIN) allows us to program the module with the specific software and calibrations for your vehicle’s exact configuration (engine, transmission, and other options). This step is crucial for ensuring the module works correctly upon installation.
Will this module fit my 2013 Suburban 2500?
Yes, this module is the correct fit for the 2013 Suburban 2500 and Yukon XL 2500, as well as the 2013-2014 Silverado and Sierra 2500/3500 HD models. Please verify the part number to ensure compatibility.
Is this part difficult to install?
Mechanically, the installation is straightforward for someone with basic automotive repair experience. The module is typically located on the driver’s side frame rail. The most critical part, the electronic programming, is already done by us, making it a plug-and-play electrical connection.
Will this fix the ‘Service Trailer Brake System’ message?
A failing TBCM is the most common cause of this specific warning message. In the vast majority of cases, replacing the old module with our pre-programmed unit will resolve the issue and clear the message from your dashboard.
What happens if I don’t provide a VIN?
We cannot ship the module without a VIN because the programming is essential for its function. An unprogrammed module will not work in your truck. Please be sure to send us your VIN after purchase to avoid delays.