FEXON Trailer Brake Control Module TBCM replacement for GM 23337305 — plug-and-play, OEM-fit

The FEXON 23337305 Trailer Brake Control Module (TBCM) is a direct-fit replacement for GM part numbers 23114650 and 23104453 designed to restore proper trailer brake communication and function.

If your GM truck or SUV is showing trailer brake errors, reduced trailer braking performance, or loss of controller functions, this FEXON replacement TBCM lets you swap the module quickly without programming. Built to match or exceed OEM standards, it plugs into the factory wiring and sits in the original location behind the spare tire on most compatible models. The unit aims to deliver reliable operation, corrosion resistance, and long service life so towing systems behave predictably again.

Which vehicles will this FEXON TBCM fit?

This module is engineered for a wide set of GM trucks and SUVs across model years. Confirm fitment by comparing the part numbers and mounting location to your original module before purchase.

• GMC: Sierra 1500 (2014–2018), Sierra 1500 Limited (2019), Sierra 2500/3500 HD (2015–2019), Yukon/Yukon XL (2015–2020), Canyon (2016–2021).
• Chevrolet: Silverado 1500 (2014–2018), Silverado 2500/3500 HD (2015–2019), Suburban (2015–2020), Suburban 3500 HD (2016–2019), Tahoe (2015–2020), Colorado (2016–2022).
• Cadillac: Escalade/ESV (2015–2020).

How simple is installation and does it require programming?

The FEXON TBCM is made for plug-and-play replacement in the factory location, reducing installation time and complexity. In most applications you remove the old module and connect this unit directly without sending it for dealer programming.

• Mounts behind the spare tire in the factory bracket on most compatible models.
• No special tools or reprogramming required for typical swaps.
• Restores communication between vehicle and trailer control systems.

What performance and build qualities does the replacement module offer?

This brake controller module is manufactured to match or surpass original equipment standards, using durable materials and finishes that resist oxidation. The design focuses on consistent electrical performance and service life under towing loads and road conditions.

• OEM-level specifications for fit, form, and function.
• Corrosion-resistant housing and reliable connector interfaces.
• Engineered to maintain trailer brake functionality and reduce unexpected failures.

Which part numbers does this FEXON unit replace and why that matters?

FEXON 23337305 replaces earlier GM reference numbers 23114650 and 23104453 to ensure compatibility across model years and trims. Using the correct replacement number helps avoid fitment issues and electrical mismatches.

• Direct replacement for GM part numbers: 23337305, 23114650, 23104453.
• Ensures proper wiring pinout and mounting alignment with factory locations.
• Helps eliminate common trailer brake system diagnostic trouble codes when the original TBCM has failed.

Who is this for: This FEXON trailer brake control module is aimed at owners and technicians of GM trucks and SUVs who need a reliable, plug-and-play TBCM replacement to restore trailer brake communication. It's especially useful for fleet mechanics, RV and trailer owners, and anyone who wants an OEM-spec unit to address brake controller faults without dealer programming.