Haul with Confidence: Your Plug-and-Play Trailer Brake Solution
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 towing heavy equipment for work or a camper for a family trip, you need absolute confidence that your trailer’s brakes will respond instantly. This pre-programmed Trailer Brake Control Module (TBCM) is the definitive solution to restore that essential function and peace of mind for your 2013-2014 GM HD truck.
Common Symptoms & Your Definitive Solution
If your truck is experiencing issues like the ‘Service Trailer Brake’ warning, a ‘Check Trailer Wiring’ message when nothing is wrong, or the trailer brakes simply aren’t engaging, a failing TBCM is the most likely culprit. These failures can also trigger diagnostic trouble codes (DTCs) such as C1512, C1522, or U0100. Instead of risking a costly and time-consuming trip to the dealership, this module provides a direct, reliable fix. We use your vehicle’s VIN to flash the unit with the latest official GM software, making it a true plug-and-play part that integrates seamlessly with your truck’s systems. This is the most effective way to fix your towing issues and get back on the road safely.
Key Features & Benefits:
- ✔ VIN-Programmed for Your Truck: We flash the module to your specific VIN before it ships. This eliminates the need for dealer programming, saving you hundreds of dollars and significant downtime.
- ✔ True Plug-and-Play Installation: Because it’s pre-programmed, you can simply unbolt the old module, plug this one in, and have your system fully restored. It’s a straightforward job for any DIYer.
- ✔ Restores Critical Safety: Regain full, responsive control over your trailer’s electric brakes for safer stops and better handling with heavy loads.
- ✔ Eliminates Annoying Dash Warnings: Permanently clear the ‘Service Trailer Brake System’ message and other related alerts.
- ✔ Guaranteed Compatibility: A direct replacement for part numbers 20964299 and 20850923, ensuring a perfect fit and function for your specific GM truck or SUV.
- ✔ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
Technician’s Insight: The Importance of VIN Programming
Many owners are tempted to grab a used module from a salvage yard to save a few dollars, but this is a common mistake. A TBCM from another vehicle will not communicate correctly with your truck’s Body Control Module (BCM) and other systems. This mismatch causes persistent error codes and, most importantly, the module will not function correctly. Our VIN-programming service isn’t just a convenience; it’s a critical step that ensures the 2013-2014 Sierra Silverado Trailer Brake Control Module integrates perfectly, just like the original part from the factory, guaranteeing correct and safe operation from the moment you install it.
Don’t compromise on the safety of your truck, your trailer, and your cargo. This expertly programmed 2013-2014 Sierra Silverado Trailer Brake Control Module is the most reliable and efficient way to solve your trailer braking problems. By providing us with your VIN at checkout, you ensure that the part you receive is 100% ready for installation, getting you back to towing safely and with complete confidence.
Frequently Asked Questions
Do I need to take this part to a dealer for programming?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it to you. This makes it a true plug-and-play part, saving you the time and expense of a dealership visit.
What information do you need from me?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). This allows us to load the correct software and calibrations for your truck’s specific options.
How do I know if my TBCM is the problem?
The most common symptom is a persistent ‘Service Trailer Brake System’ message on your driver information center. You may also notice the trailer brakes not working at all or working intermittently. This 2013-2014 Sierra Silverado Trailer Brake Control Module is the direct solution for these common issues.
Where is this module located on my truck?
On 2013-2014 Sierra and Silverado pickups, the TBCM is typically mounted to the frame rail on the driver’s side, near the rear axle. On Suburban 2500 and Yukon XL 2500 models, it’s usually found on the driver’s side frame rail, closer to the middle of the vehicle.
Will this work with my factory in-dash trailer brake controller?
Yes, absolutely. This module is the ‘brain’ that receives the signal from your in-dash controller (the switch/slider you use in the cab) and translates it into braking commands for the trailer. If your module has failed, your in-dash controller will not function correctly until this part is replaced.