Arrives before Christmas 
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This compact brake controller fits nicely in your cab. It's designed to mount flush to the dash and is only 1" thick. The controls are simple, the LED display is large and bright, and the manual override is easy to reach in a pinch.
Features:
Specs:
Gain is the maximum amount of power that will be applied to your trailer's brakes. How much braking output you need is determined by the weight of your trailer; a heavier trailer will need more power to bring it to a stop. You want to go as high as you can without the trailer brakes locking up. Use the gray rocker switch to adjust the gain on a scale of 0.5 to 9.9 in increments of 0.5.
Once you have the gain set, you can fine-tune your braking by adjusting the load control on a scale of 1 to 9 using the black rocker switch. This controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the maximum braking level. If your vehicle takes too long to come to a stop, increase the setting. If it stops too abruptly, decrease the setting.
The LED display on the TriFlex is large and easy to read at a glance. You can adjust the brightness or trigger night mode so it won't glare obnoxiously on your dash. It also will give you error messages you can use to troubleshoot.
The TriFlex offers key safety features to prevent damage to various components of your towing setup. This starts with built-in protection against shorts and positive and negative power reversal, as well as continous diagnostic checks to alert you to any potential problems as they come up. To minimize the drain on your vehicle's battery, the TriFlex will automatically go into sleep mode after 5 minutes of inactivity. Sleep mode will turn off again the moment you press the brake pedal.
Automatic leveling means your mounting options are limitless, so long as you can still easily access the controller and the manual override. The included bracket is designed to mount the brake controller flush to the dash so it takes up almost no space at all.
If your vehicle already has a plug-in brake controller wiring harness, just connect the unit to it. Otherwise, you will need to purchase a vehicle-specific wiring harness (sold separately) to plug into. If a harness is unavailable for your vehicle, hardwiring will be necessary.
Note: If a custom brake control wiring adapter is not available for your vehicle, one of the following will be required:
20-Amp circuit breaker (9506P - sold separately) for 2- to 4-brake applications
30-Amp circuit breaker (38630 - sold separately) for 6- to 8-brake applications
If you don't already have a 7-way plug at the back of your vehicle, take a look at our exclusive 7- and 4-way brake control installation kit (ETBC7 - sold separately).
Proportional braking means that your trailer brakes mimic your tow vehicle's brakes. If you slam on the brakes in your vehicle, your trailer brakes will activate with the same intensity; if you brake lightly, your trailer brakes lightly too. The trailer's braking is in proportion to your vehicle's braking. This saves wear and tear on the tires and the brakes on both your vehicle and trailer.
The TriFlex uses an internal 3-axis accelerometer to sense how your vehicle is braking so it can send the right amount of braking power to your trailer. It measures the inertia of your tow vehicle and activates the trailer's brakes to slow at the same rate. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.
Average Customer Rating: 4.7 out of 5 stars (80 Customer Reviews)
This compact brake controller fits nicely in your cab. It's designed to mount flush to the dash and is only 1" thick. The controls are simple, the LED display is large and bright, and the manual override is easy to reach in a pinch.The curt tri-flex was easily connected to my Lexus GX-460 with the adapter plug-in cable and worked great. We pulled a 4500 lb travel trailer with our GX-470 with great braking.
Arrived as planed and was much smaller then my old clunky one. The custom cable harness was easy to install. Finding a flat spot to mount the controller took the longest to find the perfect spot. I gave a five stars because every was as it said. (Plug and play)
Wrong wiring harness. Impatient while I asked questions about the purchase of a complete brake package. I just wanted to know my options.
I'm sure the brake controller will be fine, haven't installed it yet. But the shipping took ridiculously long, even though I paid a little extra for what to thought was upgraded shipping. It was a lot longer than the website said it would be when I ordered.
All the information I needed was on your site. Got the correct adapter cable and was able to just plug in the controller.
Brake controller is all plastic, screen is ok, broke after the second use, would not turn on/work and then randomly the brake lights started turning on when no one was in my vehicle and key was out. After 3 weeks etrailer warranted it and I got a new one.
This was easy to install easy to calibrate and delivers great braking for my 5th wheel camper. I originally purchased a product from another company that just didn't work right. I ether had no trailer brakes or they grabbed really hard. It was similar in design to the curt Triflex so I was skeptical at first. I called etrailer to make sure and after checking with tech was assured it was the right application. I appreciate having someone to answer my questions and concerns. No need to purchase anywhere else.
Excellent product. Easy install. Customer service was exceptional with real-time communications every step of the way. Highly recommend e-trailer for any of your trailering needs.
Worked great and reasonably priced. Could not have been easier to install. I only towed with it a few times before I ended up trading that truck but this brake controller was a perfect purchase.
Works great and was an easy plug and play installation.
This brake controller works great!
Josh was excellent in listening and helping discuss my options. The trailer brake improved my driving and safety tremendously with a 14k dump trailer. Thanks, Josh.
Excellent product, easy installation just as described. Good quality as expected from E trailer.
Works as it should. Installed to the right of my right knee on a 2020 Ram 1500 bighorn 4x4, crew, 6.5’ bed to haul a dual axle camper.
This controller handles rentals and company equipment very well. I like the easy to read display.
The product I ordered was not available. There was a suggestion for another product, without the full knowledge that there are multiple other products, and I was only given one choice. It is what it is, if I knew of options, I would’ve made a different choice. Not a great company in terms of knowledge and service
The control works great. The reason for knocking off a star is that the control rattles whenever there is a vibration in the truck. While annoying, it doesn't affect the operation.
Instant fit, plug and play!
I have not used this device yet but I have installed it. It looks kool. I hope installation orientation doesn't matter too much.
The service and speed of delivery has always been great, thank you E Trailer.
Never a problem with etrailer
Extremely easy to install and small enough to not be in the way. Works great as well….highly recommend.
easy to install , at least on a Honda r idge-line
One year later and I have zero complaints !
It was the correct length and works per fectly.
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Condition: Like New
Notes: May have damaged packaging or minor cosmetic blemishes.
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Katrina D.
7/2/2024
Yikes, that doesn't sound helpful at all. I am sorry that you have this experience. Lets go ahead and get a return for you set up. It's always good to have multiple different options.