Does 2021 Jeep Wrangler Rubicon Unlimited Need Brake Lite Relay for Flat Towing
Published 05/06/2025 >
Question:
I have the Demco Coachlink ready to install on my 2021 Jeep Rubicon Unlimited. Do I need this part for the Coachlink?
asked by: Robert W
0
Expert Reply:
Hey Robert, whether or not you need the Brake Lite Relay part # RM-88400 is going to be based on the supplemental braking system you are using and the taillight setup of your 21 Wrangler Unlimited.
If your supplemental braking system depresses the brakes of your tow vehicle and your brake lights light up on your vehicle with the key off then you would need it.
What braking system do you have?
expert reply by:
Jameson C
0
Product Page this Question was Asked From
Roadmaster Brake-Lite Relay Kit for Towed Vehicles
- Flat Tow Brake System
- Brake Light Relay
- Roadmaster
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Flat Tow Set Up For a 2026 Jeep Wrangler Rubicon
- Search Results: 12v dc outlet
- Search Results: 12v outlet
- Search Results: rm 88400
- Search Results: 12v outlet kit
- Search Results: blue ox patriot
- Search Results: drop hitch
- Search Results: 12 volt outlet kit
- Shop: Blue Ox 12 Volt Power Outlet Kit - Direct Wire - 15 Amp - Qty 1
- Video: Comparing Portable Flat Tow Braking Systems - Curt RVi and Blue Ox Patriot
- Q&A: How Long is the Blue Ox Towed Vehicle Battery Charge Line Wiring Harness?
- Q&A: How To Tell If My Jeep Needs A Brake Light Relay When Flat Towing
- Shop: Vehicle Tow Bar Brake System
- Video: Setting Up Your Roadmaster 12 Volt Outlet Kit - 2025 Jeep Wrangler
- Shop: Blue Ox Patriot Portable Flat Tow Brake System - Proportional
- Shop: Roadmaster Dual Hitch Receiver Adapter, 2" or 4" Drop/Rise
- Shop: Blue Ox Towed Vehicle Battery Charge Line Wiring Harness
- Shop: Curt RVibrake 12 Volt Outlet Kit
- Q&A: Recommended Wiring Harness for a 2020 Jeep Wrangler Unlimited Rubicon
- Q&A: Parts Needed to Flat Tow 2025 Jeep Wrangler
- Video: Install: Blue Ox Patriot Portable Flat Tow Brake System on a 2022 Jeep Wrangler Unlimited
- Video: Comparison of the Demco and Roadmaster 12 Volt Outlet Kits
- Video: Review of Blue Ox Towed Vehicle Battery Charge Line Wiring Harness - BLU44ER
- Video: Roadmaster Tow Defender Protective Screening Review RM-4700
- Video: DIY Install: Roadmaster Tow Defender Protective Screen for Towed Vehicles on your 2014 Honda CR-V
- Shop: Seat Stiffener for Blue Ox Patriot Braking Systems
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Shop: Vehicle Tow Bar Wiring
- Q&A: Is A Brake Light Relay Needed To Flat Tow A 2021 Jeep Wrangler With Push Start
- Q&A: Providing Power to the Blue Ox Patriot from the RV to Flat Tow a Jeep Wrangler


Robert W.
5/6/2025
I corrected my question but it didn’t go through. Do I need the Roadmaster brake switch to override my factory brake switch