FEXON Trailer Brake Control Module TBCM for GM 23337305 / 23114650 Plug-and-Play Direct-Fit

The FEXON 23337305 Trailer Brake Control Module (TBCM) is a plug-and-play replacement that restores trailer brake communication and resolves trailer brake faults on compatible GM trucks and SUVs.

If your GMC, Chevy or Cadillac is showing trailer brake errors, uneven trailer braking, or a disabled trailer brake function, this direct-fit FEXON module replaces GM part numbers 23114650 and 23104453 and returns trailer brake control to factory behavior. Built to OEM-equivalent standards, this unit installs in the factory location in most models and requires no special programming—minimizing downtime and service costs.

Which vehicles is this module compatible with?

This FEXON TBCM is designed to match original equipment fit and function across a wide range of GM trucks and SUVs from model years listed by the manufacturer. Confirm compatibility using the vehicle year, make, and model before purchase to ensure a perfect match.

• GMC: Sierra 1500 (2014–2018), Sierra 1500 Limited (2019), Sierra 2500/3500 HD (2015–2019), Yukon (2015–2020), Canyon (2016–2021)
• Chevrolet: Silverado 1500 (2014–2018), Silverado 2500/3500 HD (2015–2019), Suburban and Tahoe (2015–2020), Suburban 3500 HD (2016–2019), Colorado (2016–2022)
• Cadillac: Escalade/ESV (2015–2020)
• Replaces GM part numbers: 23337305, 23114650, 23104453

How is the FEXON TBCM installed and does it require programming?

Installation is straightforward for anyone comfortable accessing the factory module location—commonly located behind the spare tire on many models. This unit is plug-and-play and typically does not require dealer programming, enabling a fast swap and immediate restoration of trailer brake signals.

• Mounts in original factory location—often behind the spare tire
• Plug-and-play harness compatibility; no coding needed in most vehicles
• Reduces workshop time compared with aftermarket controllers that need calibration

What performance and durability features does this replacement module offer?

FEXON builds this TBCM to meet or exceed OEM specifications using corrosion-resistant materials and durable electronics. The result is a module that handles road vibration and environmental exposure while maintaining reliable trailer brake communication under towing loads.

• Manufactured to OEM-equivalent tolerances for fit and function
• Durable housing and connectors for oxidation resistance
• Designed to maintain trailer brake performance and reduce unexpected failures

Will this replacement resolve trailer brake error lights and functionality issues?

Yes—when the factory trailer brake control module is the root cause, replacing it with this FEXON unit typically clears related error codes and restores correct brake operation between truck and trailer. Always diagnose error codes first to confirm the module as the failing component.

• Addresses common TBCM faults that cause trailer brake errors
• Restores communication between vehicle brake system and trailer controller
• Recommended step after confirming TBCM-related diagnostic trouble codes

Who is this for: This FEXON 23337305 Trailer Brake Control Module is designed for owners and technicians who need a reliable, direct-replacement TBCM for mid-2010s through early-2020s GM trucks and SUVs. It’s especially useful for drivers who tow regularly and need a quick, OEM-equivalent repair without dealer programming. If your vehicle matches the listed models and you’ve traced trailer brake faults to the control module, this unit offers a cost-effective, durable solution backed by customer support.