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When you’re towing, you want to know what’s really happening with your towed car’s brakes—not just that your braking system is trying to activate. The Roadmaster Stop Light Switch Kit connects directly to the brake pedal so your RV’s monitor lights up only when the pedal is actually pressed. That means you’ll always know the brakes are being applied and can catch issues before they cause wear or damage. It gives a true, real-time signal straight from the pedal instead of relying on system pressure or air cylinder movement.
If a supplemental braking system isn’t sitting quite right, it can keep the pedal partly engaged and overheat components. This kit helps prevent that by confirming that the pedal fully retracts between stops. When it’s wired in, you’ll be alerted if the pedal stays pressed so you can fix it before it causes tire or brake damage. It’s a small piece of wiring that adds big peace of mind every time you tow.
Built to tie into the towed vehicle’s fuse box, the Stop Light Switch Kit runs on 12 volts and provides a constant, clean current. That makes it dependable for long hauls and steady enough to feed your RV monitoring system without flickering or false alerts. It’s also a solid solution for vehicles that don’t have a “tow” ignition position, keeping everything powered as it should be while you’re rolling.
Users call the install easy and the hookup simple. Once mounted under the dash, the switch lines up with the brake pedal using the included bracket and wiring. The result is a clean setup that just works—no complicated splicing or guessing which wire does what. Once installed, it fits neatly out of sight and does its job quietly every mile.
Flat towing can be a much more convenient way to take your car RVing with you than using a trailer or a tow dolly. It'll save you storage space both at home and at the campsite, and it takes less time and hassle to hook up.
To flat tow your vehicle, there are 5 basic components you're going to need: a tow bar, a base plate kit, a safety cable set, tow bar wiring, and a flat tow braking system.
| For the RV | Between the RV and Towed Car | For the Towed Car |
|---|---|---|
| Hitch | Tow bar | Base plate |
| Wiring plug | Safety cables | Braking system |
| Wiring adapter cord | Wiring kit/diodes |
The custom-fit base plate installs on the frame of your toad so you can connect the car to your RV with a tow bar. Hook up safety cables between the vehicles to ensure that the toad does not separate from the motorhome if the tow bar becomes detached. Tow bar wiring syncs your vehicle's signal lights with your motorhome's tail lights, as required by law in most states. Finally, the flat tow braking system - also required in most states - activates the brakes in the toad when you hit the brakes in the RV, making for smoother, safer braking, and preventing wear on your motorhome.
Customer Satisfaction Score:
90% were satisfied with this product
10% of customers were not satisfied
Ratings & Reviews
Great product. Easy to install
Product works well
Easy hook up worked great.
I just received this product and have not had the time to install
Works as it should
Fit as advertised.
etrailer is the most dependable and with quality items! I wouldn't use anyone else!
I rec. the product on time , installed it and it work great the whole process was great, and thank you doing everything you said you and the product would do.
Ralph
Works fine but you need arms like an octopus unless you remove the drivers seat to get enough room under the dash
The items I ordered which are to complete the setup for my Jeep Toad arrived in a timely manner and were exactly what I needed. I have not had the opportunity to install yet but I don’t anticipate any issues as I have reviewed the instructions. Tammie was great to deal with and was very knowledgeable. This is not my first dealings with etrailer and won’t be the last. Great service and knowledgeable. Thanks. Keller Texas. Don’t have any pics yet.
I installed this product so I could monitor the application of the brakes on my toad from the cockpit of my motor home. Easy install, and worked like a charm. I highly recommend this product.
The thought of tapping into a car's electrical system makes me very nervous. So I bought this switch to eliminate that requirement. The alignment with the pedal was not perfect so I thought I might have problems down the road but I have not.
There was a challenge presented when installing the Roadmaster Stop Light Switch (Kit #751452) on my 2015 Jeep Wrangler Sport Unlimited. The kit's Black C Bracket was not able to swing around fully to allow the kit's gray stop switch to be in line with the brake pedal. This was due to blockage caused by existing jeep's stop switch gray mounting bracket. As a result, I had to cut a notch using a Dremel and a grinding bit. The area where I had the interference from the jeep's bracket and the notch to allow proper installation is indicated in the attached photo.
It is imperative that the kit's stop light switch when mounted correctly is fully depressed. If not, 12 volts will be sent to the Evenbrake's transmitter which will result in an alarm and failure to use the Evenbrake system.
Also in reference to the Roadmaster installation instructions, there is no removable lower plastic cover. Installation requires twisting ones body under the dashboard with limited use of my left arm (I am right handed) to use tools.
I ordered the stop switch from etrailer.com. I am using a Roadmaster Evenbrake system. I do want to state a clarification concerning the battery based on what I read in etrailer's and other forums. You do not have to disconnect the jeep battery on the 2015 Wrangler Sport Unlimited Model. Jeep made a change in the second edition of the 2014 operators manual which is reflected in the 2015 manual. The earlier 2014 edition did state the disconnecting of the battery before towing. I had informed the Roadmaster tech department of this change.
The 2015 Jeep Wrangler Sport Unlimited steering column does not lock. You do not have to leave the key in ignition. You can remove it when ready to tow.
My 2015 jeep has the power convenience group. The vehicle has two 12 volt convenience outlets. One is only powered on when the ignition switch is on. The other outlet is connected directly to the battery via a fuse. It is on all the time. This is the outlet I use for the Evenbrake. Now, Jeep does state not to plug in devices that use more than 13 amps or 160 watts. Roadmaster as per their installation manual indicates that the maximum draw of the Evenbrake is 10.8 amps. I reviewed all the above to the Roadmaster tech department and they said I should not have a problem using the Jeep's always on 12 volt outlet. We recently went on a camping trip on Columbus Day weekend to a campground 120 miles from the house and no power problems were encountered with the Evenbrake system.
One other clarification is that the Jeep's brake lights are tied into the power convenience/electronics system. The brake lights will operate for a short period of time after the ignition is turned off and/or you open the jeep's door. Use of the brake lights will time out. This is the primary reason why I chose the stop light switch bracket kit.
The Roadmaster Evenbrake transmitter and the hot leg to the kit's stop light switch are fed from a dedicated 10 amp fuse protected line from the battery. This way, I avoided drilling a hole into the weather resistant under the hood fuse box plus negating the need to make rube goldberg connections to existing fuses.
Bill H.
10/17/2015
It works great
This product was exactly what I needed. I wanted an indicator light that told me when the brake pedal moved on my towed vehicle, not when my brake system was activated. This part fit perfectly on my 2014 Jeep Wrangler sport. Others with newer wranglers reported having to notch bracket but there was no need for that on a 2014. I wired mine a little differently than the instructions show and there was no need to tap into the wiring on my Jeep. My indicator light recieved constant power from my coach, when the brake is pushed it completes the circuit with a ground from the coach and the light comes on. I feel confident that if there is a problem and my brakes are activated when they shouldn’t be I will be aware of this before it causes damage to the toad brakes. Great product
Product works as promised. My suv did not have a brake switch. The bracket did not work so i customized one for this car as there was non available. But once all installed towing feels much safer with the brake controller got here
The towing package I purchased from etrailer has made all the difference in our RV trips. My jeep wrangler can go everywhere we go, easy to hook up and thanks to the invisa brake no strain on the RV brakes. Full system required a mechanic to install but all in all very happy..
Thanks to a review I was aware I might have to grind out part of bracket to get it to fit. I did have to. Roadmaster said it wasn't necessary . I think they have to update the bracket for the newer models.
Etrailer was more helpful than Roadmaster.
Dave T.
12/12/2015
Works great forgot it was even there
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Ralph C.
6/29/2017
great