Parts Needed to Install Brake Controller on 2015 Chevy Silverado 2500
Updated 12/22/2025 | Published 10/16/2024
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Question:
I HAVE A 2015 CHEVY 2500 HD. I DO NOT BELIEVE IT HAS THE FACTORY TOW PACKAGE. WHAT DO I NEED TO INSTALL A TRAILER BRAKE SET UP ON THIS VEHICLE? THE PREVIOUS OWNER INSTALLED A TRAILER HITCH AND THE SEVEN WAY WIRING HARNESS.
asked by: AL W
Expert Reply:
Hi Al; with a 7-way already installed the only thing you need to use trailer brakes is the brake controller. I believe all of the 2015 Silverado 2500 models come with the factory wiring. If there is a plug that looks like the # HM40975 connected to a factory wiring harness at the back that is the same as the OEM wiring. You can also check for a tow port under the dash.
I attached an installation video below for a 1500, your tow port should be in the same or a similar location. If the plug looks like it matches the picture below you can use the Redarc Tow-Pro Liberty # RED26CR you were looking at. This comes with a custom wiring harness for a plug and play installation.
If by chance they ran wires and installed a kit like our # ETBC7 you will have to hardwire the brake controller. For this you will need the # RED24FR along with the Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers # RED69FR.
(click to enlarge)
Product Page this Question was Asked From
Redarc Tow-Pro Liberty Brake Controller w/ Custom Harness - Dash Knob - Up to 2 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Plug-In
- Dash-Mounted Knob
- Behind-Dash
- Up to 2 Axles
- Indicator Lights
- Single Trailer Only
- Redarc
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Robin H.
12/22/2025
Hey Al, how did things go with the Redarc Tow-Pro Liberty brake controller on your Silverado 2500? Did the factory tow port under the dash match up for the plug-and-play setup? Your update could make it easier for others adding a brake controller to a similar truck.