To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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.
The included custom-fit adapter plugs into the port on your vehicle's built-in brake control wiring harness, which you'll find underneath the dash, to the left of the steering column, taped to another harness near the emergency brake pedal. Once you're plugged into the factory port, just plug the other end of the adapter into the TriFlex. No hardwiring needed!
Note: 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.
Alternate Instructions
California residents: click here
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, I'm Danny with etrailer, and today we're gonna take a look at the Curt TriFlex Next Brake Controller on our 2019 Chevy Silverado 1500. This brake controller has proportional braking, meaning the amount you press on your brake in your vehicle is gonna be the same pressure applied to the brakes on the trailer. So this is great for people who frequently tow, or if you're in heavy traffic, if you just lightly tap the brakes, it's not gonna put that full force on the brakes every time. So it actually will make the brakes in your trailer last longer. Now, I'll go ahead and show you the functions on this. We do have a mode on the left here and then a top and bottom arrow.
So if I press up on the arrow, it's going to increase our gain. So our gain is gonna be the amount of braking power, it's gonna be enacted on our trailer. So usually you want to go around the middle when you're just starting out, and if you need more, you can always increase it or decrease it while you're testing it out when you're driving. Now I'll hit the mode button and that's gonna bring us to our load. So the load is basically gonna be the time the brakes are applied, so the higher the load, then the brakes will enact a lot faster.
And this button on the side here is the manual override. So if your trailer is experiencing some sway, or you really need to have those brakes go immediately, you can press this down, and it'll go up to that gain set preset you've already set on your device. This brake controller is compatible with trailers that have four axles, and I personally do like the look of this. You can put this anywhere on your dash, which is nice, and it's this really low profile look here, so you're not gonna hit your knees on it or anything like that. Some of the other brake controllers we have on the market do sit pretty low, so I do like that feature.
Now as far as the install goes, it's super simple. You're just plugging two plugs together and putting this, attaching this on your lower dash. So if you're ready to get this installed, follow along and I'll show you how to do it. To order our installation, I got the wire harness here, and I'm gonna find a corresponding plug under the dash. Ours looks like it's right above the brake pedal arm here and it's gonna have a cap on it.
So I'm gonna push down on the tab and take that cover off. Now can plug our harness in. We went ahead and stuck this on with the double-sided sticky tape that it gives you in the kit. Now we would drill in the two screws they give us, they're self-tapping screws into this plastic here. This is just for demo purposes, so we're just gonna stick it on. Go ahead and plug our brake controller into our wire harness, and squeeze in on these two tabs and get this slid into our bracket. All the slack in the wire harness, you can just fold up and get that zip tied up behind the dash. I'll go ahead and just hit the manual override, and we'll go ahead and see the output on the tester in the back. (machine humming) Do you have any further questions on about which brake controller is gonna be best for you and your trailer Or if your vehicle has a tow package or not, then please feel free to reach out to us at etrailer. But that just about does it for the Curt Triflex Next Brake Controller on our 2019 Chevy Silverado 1500.
Customer Satisfaction Score:
94% were satisfied with this product
6% of customers were not satisfied
Ratings & Reviews
stopped working at the end of 2025. Ju nk
Excellent product with easy installation. It arrived very quickly--great customer service.
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