Restore Safe and Reliable Towing Performance
Seeing the dreaded “Service Trailer Brake System” message on your dash? You’re not alone. When the trailer brake controller fails on your heavy-duty GM truck or SUV, it compromises your ability to tow safely, creating a stressful and dangerous situation. This direct-fit Trailer Brake Control Module (TBCM) is the definitive solution, arriving at your door fully programmed to your vehicle’s specific VIN. This means no expensive trips to the dealership for coding—it’s ready to install right out of the box, restoring the critical connection between your vehicle and your trailer’s brakes.
Common Symptoms & Your Direct-Fit Solution
A failing TBCM can manifest in several ways, all of which point to a critical safety issue. If you’re experiencing any of the following, it’s time for a replacement:
- Persistent “Service Trailer Brake System” warning light
- Trailer brakes not engaging at all
- Intermittent or jerky trailer brake application
- Diagnostic Trouble Codes (DTCs) such as C1512, C1522, or others related to the TBCM circuit
This module is your complete fix. By providing us with your VIN upon purchase, we flash the unit with the latest factory software from GM, ensuring it communicates flawlessly with your truck’s Body Control Module (BCM) and other systems. This isn’t just a part; it’s a fully integrated solution designed to restore the factory performance and safety you depend on. Get your 2013 Suburban 2500 Trailer Brake Control Module and tow with confidence again.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Arrives ready for a true plug-and-play installation, eliminating the need for dealer programming and saving you time and money.
- ✔ Loaded with Latest GM Software: We ensure your module has the most current updates for optimal performance and reliability.
- ✔ Restores Towing Safety: Regain precise, dependable control over your trailer’s brakes for confident hauling in all conditions.
- ✔ Direct OEM-Fit Replacement: Engineered to match the original specifications for part numbers 20850923 and 20964299, guaranteeing a perfect fit.
- ✔ Eliminates Dashboard Warnings: A properly functioning module will clear the persistent “Service Trailer Brake System” message.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
As a technician with over two decades of experience, I can’t stress this enough: on modern GM vehicles, the Trailer Brake Control Module is not a simple swap. These modules are integral parts of the vehicle’s complex CAN bus network. Without being programmed to your specific VIN, a new module is just a plastic box—it won’t be recognized by the BCM. This means no communication, no function, and the same error message on your dash. Our pre-programming service is what makes this a real solution, turning a potentially complicated repair into a straightforward DIY job that gets you back on the road safely.
Don’t risk your safety or your valuable cargo with a malfunctioning brake controller. This pre-programmed 2013 Suburban 2500 Trailer Brake Control Module is the most reliable and efficient way to get your heavy-duty truck or SUV back to work.
Frequently Asked Questions
Why does this module need my VIN to be programmed?
Your vehicle’s VIN is like its fingerprint. Programming the module to your specific VIN allows it to securely communicate with the other computers in your vehicle, like the Body Control Module (BCM) and Engine Control Module (ECM). Without this step, the module will not function.
Is this a true plug-and-play installation?
Yes. Because we handle all the programming on our end before shipping, the module is ready for immediate installation. Simply disconnect the old unit, connect the new one, and you’re done. No dealer visit is required.
Where is the TBCM located on my vehicle?
For the 2013-2014 Silverado and Sierra pickups, the module is typically found on the left-hand (driver’s side) rear frame rail. For the 2013 Suburban 2500 and Yukon XL 2500, it is located on the left-hand side, near the middle of the frame.
What happens if I install a TBCM that isn’t programmed?
An unprogrammed module will not be recognized by your vehicle’s computer system. The “Service Trailer Brake System” warning will remain, and you will have no trailer brake functionality. It simply will not work.
What part numbers does this module replace?
This module is a direct replacement for part numbers 20850923 and 20964299. It is the correct fit for the 2013 Suburban 2500 Trailer Brake Control Module and other compatible GM HD models.