Installing Tekonsha Brake Controller On A 2020 GMC Savana Cutaway
Updated 03/17/2025 | Published 08/01/2023
Products Featured in This Question
Question:
I have a 2020 savana cutaway, trying to find a brake signal wire for a brake controller. The factory harness is not powered unless I disassemble the fuse box under hood, any assistance would be greatly appreciated.
asked by: Michael
Expert Reply:
I can definitely point you in the right direction. These Savana models can be tricky when installing a dash mount brake controller like the Tekonsha P2 # 90885.
If the vehicle has the factory tow package with a 7 way plug, there should be a blue wire for output run under the dash. It would be located near the emergency brake pedal. Some models will have the connection wiring taped and tucked under the driver side floor mat up towards the firewall. Those wires would be labeled which is which, but may not be color coded.
If you do not have a factory trailer connector, you will need to install a 4 pole T harness like # C56496 and also a brake controller install kit # ETBC7. This will be everything you need to wire the vehicle with a 7 way plug, and install a brake controller.
Product Page this Question was Asked From
Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Splice-In
- Under-Dash Box
- Under-Dash
- Up to 4 Axles
- LED Display
- Single Trailer Only
- Tekonsha
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Brake Controller
- Shop: Curt Echo Wireless Brake Controller - 7-Way Plug-in w/ Bluetooth App - Up to 2 Axles - Proportional
- Q&A: Brake Controller that Fits 2024 Motorhome on E350 Cutaway Chassis
- Shop: Tekonsha Prodigy P2 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Shop: Wiring Kit for 2, 4, 6, and 8 Brake Electric Trailer Brake Controllers
- Q&A: How to Install a Brake Controller in a GMC 4500 Cutaway RV Savana
- Shop: Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Q&A: Is There A Plug And Play Brake Controller Adapter From Tekonsha For A 2024 GMC Sierra 2500HD
- Video: Install: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector on a 2014 GMC Savana Van
- Shop: Roof Rack
- Shop: Towing Mirrors
- Shop: T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Shop: Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Hitch
- Video: How to Choose a Trailer Brake Controller
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: brake controller
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Search Results: trailer brake controller
- Article: Brake Controller Installation: Starting from Scratch
- Search Results: roof rack
- Q&A: What is the Difference Between the Tekonsha Prodigy P2 and the P3 Brake Controllers
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Trailer Wiring Diagrams
- Shop: Suspension Enhancement
- Q&A: Can I Use a 4 Way Vehicle Connector with 7 Way Adapter and the Curt Echo Brake Controller?
- Video: How to Install: Curt Echo Wireless Brake Controller on your 2020 Subaru Outback Wagon
on Trailer Brake Controller
Dan E.
3/16/2025
I have a 2018 GMC Savanna , I also have a Tekonsha nrake comtroller. I would like to know where the wiring (factory) is located,I was hoping for a “plug n play” but I can splice. Only need to know where to look!