2019–2026 Silverado / Sierra 1500, 2020–2026 HD, 2023+ Colorado / Canyon, Escalade & Hummer EV Trailer Brake Control Module 85073615

GM Trailer Brake Control Module (TBCM) — part number 85073615, programmed to your VIN and ready to install. GM lists this part as programming required; a blank module will not run the trailer brake output until it is set up for your truck.

This module drives the electric brake output for the factory integrated trailer brake controller on current-generation GM trucks, Escalade and Hummer EV. Typical symptoms: "Service Trailer Brake System" message, no trailer brake output, or trailer brake DTCs that follow the module.

Fits (confirm by VIN):

• Chevrolet Silverado 1500 2019–2026 (incl. 2022 LTD)

• GMC Sierra 1500 2019–2026 (incl. 2022 Limited)

• Chevrolet Silverado 2500 HD / 3500 HD 2020–2026

• GMC Sierra 2500 HD / 3500 HD 2020–2026

• Chevrolet Colorado / GMC Canyon 2023–2026

• Cadillac Escalade / Escalade ESV 2024–2026

• Cadillac Escalade IQ 2025–2026, Escalade IQL 2026

• GMC Hummer EV Pickup 2022–2026, Hummer EV SUV 2024–2026

Interchange / superseded part numbers (replaced by 85073615):

23306694

2023 Colorado / Canyon and Hummer EV Pickup: GM also lists 85636861 for these. If the module on your truck is labeled 85636861, send us your VIN before ordering.

• Plug and play

What we need: your 17-digit VIN at checkout.

Not for: 2014–2019 previous-body Silverado / Sierra 1500 (incl. 2019 LD / Limited), 2015–2019 HD, 2015–2022 Colorado / Canyon, or 2015–2020 Tahoe / Yukon / Escalade — those use 85073617. 2021–2024 Tahoe / Suburban / Yukon / Escalade and some 2022–2024 Silverado / Sierra use 85073616.

Not sure this is the right module? Send us your VIN or the number off your unit and we'll confirm the exact match — same business day, Mon–Fri.