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Blue Ox Patriot 3 Radio Frequency, Portable Braking System - Proportional

Blue Ox Patriot 3 Radio Frequency, Portable Braking System - Proportional

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Our Price: $1,595.00
Tow Bar Braking Systems

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Product Expert Mike S

Is this right for you? Product Expert Mike S says:

Yes, if you:

  • Need to be able to switch between towed vehicles
  • Are towing a newer or nicer vehicle that you don't want to permanently modify
  • Have other Blue Ox products and love their quality and reliability

No, if you:

  • Would rather avoid the hassle of having to set up your system before each trip
  • Don't have room in your RV to stash a bulky brake in a box
Flat tow your vehicle safely with this precise, responsive braking system that can be easily switched between towed cars. LED display lets you easily adjust braking power, apply manual override, and monitor the system from your motorhome. Lowest Prices for the best tow bar braking systems from Blue Ox. Blue Ox Patriot 3 Radio Frequency, Portable Braking System - Proportional part number BRK2019 can be ordered online at or call 800-298-1624 for expert service.
  • All Info
  • Reviews (112)
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  • Why etrailer?

Blue Ox Tow Bar Braking Systems

  • Brake Systems
  • Proportional System
  • Hydraulic Brakes
  • Air Brakes
  • Air Over Hydraulic Brakes
  • Portable System
  • Blue Ox
  • Recurring Set-Up
  • Power Assist Brake Compatible

Flat tow your vehicle safely with this precise, responsive braking system that can be easily switched between towed cars. LED display lets you easily adjust braking power, apply manual override, and monitor the system from your motorhome.


  • Proportional system provides precise, responsive braking for your towed vehicle
    • Responds to deceleration of RV to activate towed car's brake pedal with matching intensity
  • Adjustable power settings let you cater the brake sensitivity to your particular setup
    • Easily increase and decrease the force at which your towed vehicle's brakes are applied
    • Conveniently adjust the braking force from the cab of your motorhome
  • Remote controller with LED display lets you monitor the braking system from your motorhome
    • Mounts in cab and plugs into 12V accessory outlet
    • Lets you activate towed car's brakes in emergency situation or to correct sway
    • Alerts you if the towed vehicle becomes detached from your motorhome
  • Built-in supercapacitor will activate your brakes if a breakaway occurs, even if your car's battery is dead
    • Allows the system to activate if a breakaway occurs for up to 30 minutes without a power connection
  • System is easy to set up in towed car
    • Actuator box sits on floor in front of the driver's seat
    • Adjustable feet can be raised or lowered to level the unit on uneven floorboards
    • Bracket clamps around brake pedal and offers excellent leverage
    • Unit plugs into 12V accessory outlet
  • Brake pressure is continuously monitored during towing to ensure proper setup
    • Unit will send a warning if there is too much pressure to activate the brakes properly
  • Compatible with hybrid vehicles
    • Simply select H mode for hybrids or other cars with continuous power-assist brakes
  • Convenient carrying handle and hook for plug and wiring simplify removal and storage
  • Breakaway device included
  • Made in the USA


  • Weight: 16 lbs
  • 2-Year warranty

Proportional Braking

Blue Ox Patriot 3 Proportional Braking

A vast improvement over "on/off," time-delayed braking systems, which brake at a single, pre-set level, the Patriot 3 has a proportional design for precise, responsive braking. The Patriot 3 applies your towed car's brakes with an intensity that matches your RV's braking action. The built-in inertia sensor detects when and how your rig slows down, and it then engages the actuator arm to press your car's brake pedal with an intensity that matches that slowing action. If you slam on the RV's brakes in an emergency situation, your towed car's brakes will respond with the same intensity. If you press the RV's brakes just enough to slow down a bit, your towed car will decelerate in the same way. The result is improved control, better stopping, and less wear on both your vehicle's and RV's brakes.

Easily Switch Between Towed Cars

The beauty of a portable braking system, compared to a unit that installs permanently, is that you can easily switch it between towed vehicles. It's also a great alternative if you own a newer vehicle that you don't feel comfortable modifying. As long as you have a second vehicle breakaway kit (BRK2505 - sold separately), the Patriot 3 can be easily transferred and quickly set up in another car, giving you the freedom to switch up which vehicle comes with you on your next camping trip.

In-Cab Controller with Easy-to-Read Display

Blue Ox Patriot 3 In-Cab Controller

The included controller has an easy-to-read LED display that plugs right into your motorhome's 12V outlet. The monitor slides into the included rubber stand, which can rest anywhere on your dashboard, or it can be mounted with the included hook-and-loop strip.

This unit lets you monitor your braking system while you're driving your motorhome, so you'll always be aware that the Patriot 3 is working and functioning properly. Not only does the controller let you know when the unit is activated, but it will also alert you if the unit inadvertently shifts while you're on the road. This could result in too much pressure being applied to your car's brake pedal, which is why a warning will be sent to the controller so you can pull over and make the necessary adjustments.

As another safety feature, if your towed vehicle ever becomes detached from your motorhome, the screen on the controller will alert you by turning red.

Braking Power Settings

Blue Ox Patriot 3 Force Settings

By adjusting the brake sensitivity using the in-cab controller, you can control the force at which your towed vehicle's brakes are applied when the system senses deceleration. The settings range from 1 to 10. The higher the setting, the more force will be applied to your towed vehicle's brakes. For smaller vehicles, you can get by just fine on a lower setting. Larger vehicles, or vehicles with less responsive brakes, will require a higher setting. You can also adjust the force purely to match your personal preference.

The controller also includes a manual override button that automatically activates your towed vehicle's brakes. In addition to serving as a safety measure in an emergency braking situation, the manual override can also help correct sway and fishtailing with your towed vehicle.

Quick and Easy Setup

Blue Ox Patriot 3 Setup

The setup for the Patriot 3 is very straightforward. The braking system will fit nicely on the driver's-side floorboard of your towed car and plug into your 12V accessory outlet for power. To position the unit, first move your seat back as far as it will go and set the system in place.

Blue Ox Patriot 3 Brake Clamp

Then clamp the bracket on the arm securely around your brake pedal and twist the knob to lock it on. If your vehicle's floorboard is uneven, the included feet can be attached to the bottom of the braking system and adjusted to create a level surface for the Patriot 3 to operate. Move the front of the driver's seat forward until it's resting gently against the back of the unit. If there's too much pressure on the back of the unit, the lights will turn blue and red during the setup process, letting you know that the driver's seat should be moved back slightly. The back of the unit is adjustable as well, allowing you to raise or lower the butt pad to fit snugly against the front of the driver's seat.

Blue Ox Patriot 3 Setup

Once the unit is in place, setup is simple. Push the "power" button, and the unit will begin blinking blue and green lights, signifying that it's ready to be set up. Then push the "setup" button, which will let the unit run through a quick testing process. When the power light turns a solid green, the Patriot 3 is ready to go.

BRK2019 Blue Ox Patriot 3 Proportional Braking System

Replaces BRK2010, BRK2012, and BRK2016

Item # BRK2019

Installation Details BRK2019 Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

Blue Ox Patriot 3 Radio Frequency, Portable Braking System - Proportional - BRK2019

Average Customer Rating:  4.8 out of 5 stars   (112 Customer Reviews)

Flat tow your vehicle safely with this precise, responsive braking system that can be easily switched between towed cars. LED display lets you easily adjust braking power, apply manual override, and monitor the system from your motorhome.

- BRK2019
Ford Ranger

This Breaking system is great. I do not know the Ford Ranger is behind me pushing when I stop. No extra pressure is needed on the brake peddle.

It works great. The only problems have been operator error.
David L - 01/15/2022

- BRK2019

I selected the Blue Ox Patriot 3 braking system because of the ease of use and the ability to move it to another vehicle if I needed to. Also there was no wiring needed in the towing vehicle. I test drove with the Jeep being towed and everything worked fine. I really liked all the information that the monitor displayed. The etrailer service was excellent and the shipping was quick.

It has been a pleasure using the Blue Ox Patriot 3 the last year. The unit is very light, making installation and removal easy. It was nice to not having to run any wires between the towing vehicle and the Jeep. The Bluetooth connection has worked great. I put a sock filled with marbles on each side just to make sure that the unit doesn’t shift. .
Bryce - 10/23/2021

- BRK2019

After one year of use and multiple trips, I have had no issues at all. Works great in my 2020 Jeep Gladiator.

- BRK2019

system is a bit of a contraption.. sending unit failed and required replacement and chrome arm fell out of the ball joint and needed replacement. Fortunately I am using it in a new Jeep and it sits behind an 50k lbs Entegra Anthem so braking is not much needed. It has been unstable about 50% of the time for me.. Any bad roads where the jeep goes over road damage dislodges the setting position of the patriot and it goes red. Any replacement parts from Patriot were fast and without question.

Sorry that you are having such trouble with this item. This has a 2 year warranty.
-- Etrailer Expert Sierra K - 08/30/2021

- BRK2019

Easy install by using the etrailer step by step video. Performance is excellent.

- BRK2019

I bought this Blue Ox braking system to replace a system that costs 1/2 the price but was 10 times as difficult to install - and it broke about a year after I bought it. The Blue Ox isn’t cheap but you get whatever you pay for. The pain at purchase time quickly goes away with the convenience and ease of use. If you can afford it get it. I wish I had got it first.

- BRK2019
2014 Ram 2500

I've had the Blue Ox Patriot 3 for about a year and have towed with it for about 2500 miles. The system has worked great for me with zero issues. The dashboard display is nice in that you can see when and how much force is being applied. Towing a 2014 Honda CRV I set it to 4 - I think that is 1 below the default but in gentle braking I don't care that it brakes at all as the coach doesn't know the CRV is back there. One thing I highly recommend is a "tell-tale" light that indicates anytime the toad brake pedal is depressed. You can hang from the toad mirror or like mine I built a little wooded stand that I put on the dash. Get a pretty bright one so you can clearly see it in your rear view camera. With the "tell-tale" light you can be sure that the unit hasn't slide around or somehow activated the brake pedal but not reported that to the dash display. I use a Whelen flashing light so it really gets your attention and you know it's not just a reflection on the windshield. It could save you a set of toad brakes!

- BRK2019
Jeep Wrangler

This product was easy to install on our Jeep Wrangler. We have used it on several trips over the past year, and the system works. However, it gets a little tiresome hooking and unhooking the brake system every time we use the Jeep. If I had it to do over, I would probably spend a little more and purchase the system that just plugs in when you plug the lights to the motor home. Overall the product works as advertised.

- BRK2019

This is my first Braking system so I can’t compare, but this system has worked flawlessly in my tow vehicle, Ford Ranger towing behind our class C motor home. Very easy to set up and adjust. Would highly recommend.

- BRK2019
2018 Fiat 500

Nice and easy to install. Found out, that my 12V plug in my car would not be on unless the ignition was turned on.So I had to install a new 12V plug under the seat direct connected to the battery.

- BRK2019

Patriot 3 was easy to set up and works perfectly with my Coachmen Mirada and Honda CRV. Very pleased.

Works very well. No problems!
Peter H - 06/16/2021

- BRK2019

There is no easy way to actually review this, it is not like i am sitting back there watching it when i have to brake hard on my RV. I know that it works, it does engage brakes. The breakaway works. Two things to note/complain about. When driving, every now and again (maybe once a day), the controller will beep but have no indication of what it is erroring about. I assume connection wireless or power in the back perhaps, but really have no idea. They should fix it so that if any fault is indicated it displays for at least a few seconds, and that one can go back and see history. The other thing is sensitivity and force settings. The instructions have no information at all on how to actually gauge what is appropriate. The sensitivity i can see as I am driving, how easily it start applying force, so this i can adjust on a gut. But force? there is no way to test this. Every single person i talked to or seen videos just set it smack in the middle. In one sense i don't really want it to kick in unless i am braking fairly hard, and i want it to kick in pretty good when i do so, but i fear the delay in applying may make the actual action less helpful. I have only had to panic brake once, i drive a 37' class A, my rear wheels locked for a few seconds, back end started coming out. I really have no idea what the flat tow was doing or not, wish i had history from the system and videos etc. So all in all the product is okay, but it could be better. I dont know of any other system that is better.

- BRK2019

Simple to set up. Works perfect! We use it for two tow vehicles! Will highly recommend this braking system.

- BRK2019

excellent product. works great. top quality material. highly recommend.

- BRK2019
2013 Ford Five Hundred

Installed in a 2013 fiat 500 the hard part was wiring from the breakout switch to the passenger compartment. otherwise pretty easy install. Checked it out it all works as advertised.

- BRK2019

I received my Patriot braking system with a damaged part. I contacted the manufacturer and they in turn contacted etrailer. Long story short, the damaged part was promptly replaced. I would do business with these folks again based on their fair treatment in my case.

- BRK2019
by: 10/17/2021

Base plate install was easy. Looks grea t.

- BRK2019
2021 Jeep Cherokee

This system is as advertised. Very simple to setup. The only thing I will add is that no where in the instructions does it mention that the system will not work if the motor home is on parked. The motor home has to be moving so that you can actually see the braking system in action. Other than that. It is great.

- BRK2019
by: 03/02/2021

This has to be seated just right or it will default. We had it set as required and it moved slightly on a bumpy road and faulted. Where do you not eventually hit a bump. Then, you have to pull over to stop the coach and reset. This was exacerbated more because we also had to reconnect the battery to slightly move the seat. Then start all over again. We just think it should be more user friendly and not demand perfection to be able to work correctly. We have always used blue ox and this is the first product that performed less than expected. Most of the time we just disconnect and leave it in Place in the case of a safety check, which is especially disappointing.

- BRK2019

It is very easy to put in and take out.

- BRK2019

Super way to use! Recommended!!!

- BRK2019

Very good product

- BRK2019

Works as advertised. The only drawback was the controller. It only worked when placed on the very left hand side of the dash. I assume this was because of the length of my rig an signal strength. It was a bit out of reach but moderately manageable.

- BRK2019

Excellent product. etrailer was absolutely excellent to do business with.

Patriot 3 has been excellent in every aspect
Marty C - 04/15/2021

- BRK2019

Installation was really easy and works perfectly.

Excellent, so easy to use
Daniel - 05/23/2021

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    Other than reliability which I'll get to in a minute, the other important factor in choosing a supplemental braking system would be how long you're planning on keeping the vehicle. If you're only planning on keeping the vehicle for a year or three, a portable system like the Blue Ox Patriot III, part # BRK2019 would be a great choice because you won't have to pay for an expensive installation and you can move it easily to your next vehicle. This system is very reliable and is highly...
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  • Running Breakaway Switch Cable On 2020 Jeep Wrangler Unlimited
    There is not a preferred location to run the wire for the breakaway switch on your 2020 Jeep Wrangler Unlimited for use with the Blue Ox Patriot 3 Braking System # BRK2019. Since you don't have the grommet to pass the cable through, you can drill the 1/2 inch hole in the firewall literally anywhere that gives you the best access. Just make sure to double check before drilling to ensure you don't damage or run into any wiring or other parts. Otherwise, there isn't a specific location...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
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Dustin K
Employee Chris R
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Chris R
Employee Kathleen M
Installed by:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
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Noah M
Employee Shane H
Test Fit:
Shane H
Employee Conner L
Test Fit:
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Employee Ryan G
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Ryan G
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Test Fit:
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Mike S

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