2025 Ford Maverick Has No Brake Light Switch For Roadmaster Relay - What To Do?
Updated 07/25/2026 | Published 07/18/2026
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Question:
Hello, I have installed a new flat towing system to that I have purchased from you for my 2025 Ford Maverick. I have a question about the road master brake light relay. So, I watched the videos about the install. It tells me to look for the brake light switch by the brake pedal. I have been a mechanic for over 40 years and I have been all over the place under this dash. There is no brake light switch on or near the brake pedal. Has anyone at e trailer came across that? Just wondering if someone could help with this? Thanks Dan Owens. If someone would rather talk to me about this issue you can call me on my cell 4193660603
asked by: Daniel O
Expert Reply:
Hey Daniel, thanks for reaching out. Yes, I have heard of this. The # RM-88400 relay still needs a brake light signal, but on the 2025 Maverick there isn't a traditional brake light switch on the pedal to tap into. Ford changed the system, so the brake signal is generated electronically instead of by a mechanical switch.
The fix is to add the Roadmaster Stop Light Switch Kit # RM87GR. It's a custom-fit switch and bracket for the 2025 Maverick that mounts under the dash and provides the brake pedal signal the # RM-88400 relay needs. Once the # RM87GR is installed, you can wire the # RM-88400 just like the instructions call for.
What motorhome are you towing with?
(click to enlarge)
Steve
7/25/2026
Yes... easy install and worked perfectly. No other way to pick up brake signal.
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on Flat Tow Brake System
Daniel O.
7/23/2026
Jesse, Thanks for responding to my question. I will be towing it with a forest river e-350. I think i can achieve the same thing by wiring the relay in at the back of the truck where the tail lights are. I will let you know if that works out. Thanks Dan Owens