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  1. Trailer Brake Controller
  2. Dodge
  3. Dakota
  4. 2004
  5. CURT
Curt TriFlex NEXT Trailer Brake Controller - 1 to 4 Axles - Proportional

Curt TriFlex NEXT Trailer Brake Controller - 1 to 4 Axles - Proportional

Item # C24VV
Retail:$164.95
Our Price: $124.95
You Save: $40.00
Trailer Brake Controller
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Call etrailer.com at 1-800-940-8924 for expert service. We are your Dodge trailer brake controller experts, and offer a great price. etrailer.com carries a complete line of CURT products for your Dodge Dakota 2004. Curt TriFlex NEXT Trailer Brake Controller - 1 to 4 Axles - Proportional part C24VV from CURT can be ordered online at etrailer.com. Complete trailer brake controller installation instructions and technical support.
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CURT Trailer Brake Controller - C24VV

  • Electric
  • Electric over Hydraulic
  • Up to 4 Axles
  • Proportional Controller
  • CURT
  • Under-Dash Box
  • Dash Mount
  • Automatic Leveling
  • LCD Display
  • Up to 360 Degrees

Simple and compact, this proportional brake controller has an intuitive design that's easy to use. Includes a simple digital display, 10 gain settings, a pinch-trigger manual override, and built-in safety features.


Features:

  • Brake controller activates trailer brakes in proportion to your vehicle's braking action
    • Automatically adjusts trailer's braking based on deceleration of tow vehicle
  • Simple digital display shows you the braking and sensitivity settings as well as error codes
  • Intuitive controls keep settings within easy reach
    • 10 Levels of boost let you adjust initial braking power and aggressiveness for smooth, safe braking
    • Pinch-trigger manual override allows you to control trailer sway or stop in emergencies
  • Triple-axis, motion-sensing accelerometer provides highly responsive, smooth stops
    • Automatically increases power when going downhill and decreases when going uphill
  • Integrated safeguards protect your vehicle, the trailer, and the controller
    • Runs continuous diagnostic checks to alert you to any potential problems
    • Minimizes drain on car battery by entering sleep mode after 5 minutes of inactivity
    • Keeps trailer brakes from overheating by reducing power output to them during prolonged stops
    • Defends brake controller and trailer breakaway systems against shorts
    • Prevents positive and negative power reversal with built-in polarity protection
  • LED display shows power adjustments in 0.5 increments
    • Brightness is adjustable for optimal visibility
  • Compatible with ABS brakes, cruise control, low-voltage wiring, multiplex wiring, and PWM systems
  • Automatic leveling lets you mount at any angle
    • Mounting bracket and hardware included
    • Plug-in, vehicle-specific brake control adapter (sold separately) can be used to reduce installation time on certain vehicles


Specs:

  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Compatible with electric or electric-over-hydraulic trailer brakes
  • Dimensions: 4" long x 3-1/8" wide x 1" tall
  • Limited lifetime warranty


LED Display

The LED display on the TriFlex is large and easy to read at a glance. It will show you what setting the brake controller is on as well as give you information for troubleshooting. You can adjust the screen brightness or trigger night mode so it won't glare obnoxiously on your dash.


To change any of the settings, press the silver mode button on the front of the brake controller and which mode you are currently on will show on the LED display. When you're on the setting you want to adjust, use the black rocker switch next to the mode button to adjust it up or down.


Gain Adjustment

Gain control lets you set the maximum amount of power that will be applied to your trailer's brakes, adjusting in increments of 0.5. 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. Typically, the gain is only readjusted when you experience changing road conditions or if the weight of your trailer changes. To get more power to your brakes, press the upper rocker switch. To decrease the gain, press the lower switch. When you make your adjustment, the gain setting will show on the LED screen for 10 seconds and then go into sleep mode.


Load Control

Once you have the gain set, you can fine-tune your braking by adjusting the load control on a scale of 1 to 9. This controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the maximum braking level. Load control can get the braking power to your trailer faster and with more intensity so that it doesn't push your tow vehicle forward. If your vehicle takes too long to come to a stop, increase the setting by pressing the upper rocker switch. If it stops too abruptly, decrease the setting by pressing the lower switch. You can alter the setting to suit your driving preferences or to improve handling based on changing road conditions or varied trailer loads.


Pinch-Trigger Manual Override

The TriFlex comes with a easy-to-reach, pinch-trigger manual override, great for stopping sway or controlling your trailer's momentum in emergencies. To engage the manual override, just push in the trigger. This will activate the trailer's brakes and brake lights without you having to apply the brakes on your tow vehicle, perfect for limiting trailer movement while you're cruising.


Safety Features

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.


Curt TriFlex NEXT

Quick Installation

Automatic leveling means you can mount the unit at any angle. 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


See also etrailer.com's exclusive 7- and 4-way brake control installation kit (ETBC7 - sold separately) if you don't already have a 7-way plug at the back of your vehicle.


Proportional Braking

What is proportional Braking

The Curt TriFlex NEXT brake controller comes equipped with proportional braking to give you the best towing experience. 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.



51146 Curt Tri-Flex NEXT Proportional Trailer Brake Control

Replaces Curt 51140

Installation Details C24VV Installation instructions

Customer Satisfaction Score:


Customer Reviews

Curt TriFlex NEXT Trailer Brake Controller - 1 to 4 Axles - Proportional - C24VV

Average Customer Rating:  4.6 out of 5 stars   (51 Customer Reviews)

Simple and compact, this proportional brake controller has an intuitive design that's easy to use. Includes a simple digital display, 10 gain settings, a pinch-trigger manual override, and built-in safety features.

by:

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)



by:

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.



by:

Excellent product, easy installation just as described. Good quality as expected from E trailer.



by:

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



by:

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.



by:

I have not used this device yet but I have installed it. It looks kool. I hope installation orientation doesn't matter too much.



by:

The service and speed of delivery has always been great, thank you E Trailer.



by:

Never a problem with etrailer



by:

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.



by:

Extremely easy to install and small enough to not be in the way. Works great as well….highly recommend.



by:

Scratched screen straight out of the package/from the factory. Haven't installed yet. Super fast shipping!!



by:

As advertised- very easy to install!



by:

Was easy to install and works well.



by:

Good ..except for shipping thru mail.



by:

Couldn’t get any easier to install. Took less than ten minutes.



by:

Works good, just installed, trailer brakes smooth and as it should.



by:

Everything got here fast, and looks to be exactly what I need. Thank you!



by:

I have not installed it yet, but it looks good and thank you for the fair shipping Richard



by:

Perfect communication and quick deliver y!



by:

Great fit works as described



by:

install is a breeze!



by:

Hey guys thanks for all the help.
I submitted
a couple of questions that were quickly answered and Jon gave me a couple of suggestions that I did wind up choosing. They even came with detailed directions for my paticular truck.
Thanks again for the awesome service and help



by:

She was great



by:



by:


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Show More Reviews

See what our Experts say about this CURT Trailer Brake Controller

  • Can Curt TriFlex be Used With 2019 Toyota Highlander
    So long as your 2019 Toyota Highlander does not have the factory tow package, you can use the Curt TriFlex Trailer Brake Controller # C24VV you referenced. To use it you will need the Wiring Adapter # C51515, T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118449 and Universal Installation Kit for Trailer Brake Controller # ETBC7. If your '19 Highlander has the factory tow package I strongly recommend the Curt Echo Mobile Trailer Brake Controller # C51180 because it is...
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  • Recommended Brake Controller Wiring Connector for 2018 Nissan Frontier
    For your 2018 Nissan Frontier, I recommend the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR. This gives you a clean look and removes the old knee knocker without losing any quality in your trailer braking ability. I recommend using the Tekonsha Wiring Adapter for Electric Brake Controllers # 3050-S. If you want the Curt TriFlex Trailer Brake Controller # C24VV you asked from, then you would use the Curt Custom Wiring Adapter for Trailer Brake Controllers # C51382. Either...
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  • 2019 Chevrolet Express 3500 LT Trailer Wiring
    Yes the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118392 is a confirmed fit for your 2020 Chevrolet Express 3500. Adding the Universal Installation Kit for Trailer Brake Controller part # ETBC7 will give you a fully working 7-Way and 4-Way for use with most all trailers. You also have the option with the ETBC7 kit to add a brake controller if you ever haul a trailer that has brakes like the Curt TriFlex Trailer Brake Controller part # C24VV. Check out the...
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  • Difference Between Curt TriFlex and Curt TriFlex NEXT Brake Controllers
    Great question Max! Yes, the Curt TriFlex NEXT Trailer Brake Controller # C24VV is just an upgraded version of the Curt TriFlex C51140 with the upgrades being a refreshed computer system and the ability to be mounting in any orientation instead of being limited to a 90-degree vertical and 40-degree horizontal like what we see with the older model. Because of this I highly recommend going with the NEXT version over the original version.
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  • How to Reset a Brake Controller
    To reset the Curt TriFlex Trailer Brake Controller item # C24VV you will just want to unplug the controller itself. I made a diagram to show you what you will need to unplug. Disconnect this wiring harness and count to 10 and that will reset your brake controller. Make sure you pull at the plugs not on the wires or you will rip them out.
    view full answer...
    Image 1 for
  • Parts Needed to Install Brake Controller in 2015 Ford Flex with Tow Package
    To install the Curt Triflex part # C24VV in your 2015 Ford Flex that you completed the tow package for the only harness you need is the part # C51432 which will plug into the connector under the dash of your Flex that you mentioned.
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  • Troubleshooting Curt Trailer Brake Controller Installation On a 2014 Cadillac Escalade
    It looks like the Curt Custom Wiring Adapter # C51451 is only confirmed to fit the 2015-2022 Cadillac Escalade. With you connecting it to a 2014 Escalade it is likely going to a connection that is not for the brake controller. On the 2014 you should be using a Universal Wiring Adapter # C51515 since the wires are not terminated into a connector but only cut and sealed at the ends. Then you will be able to connect a brake controller like the Curt TriFlex # C24VV. I have linked an article...
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  • Curt Triflex Controller Shows Decimal Point and 2.o
    For the Curt Trifles the " . " means that the controller is in standby mode with not trailer connected. "2.0" flashing constantly means that it is in output adjustment mode. Have you tried connecting to a trailer to see if it works or not? You were correct in not wiring the CHMSL wire to the 7-way so it sounds like you may have everything set up properly. You might run through the setup process for the controller that is in the install instructions link I attached to see if it just...
    view full answer...
  • LED Display on Curt C24VV TriFlex Brake Controller Only Reads 3 With Output Turned Up All the Way
    According to my contact in the Tech Services department at Curt Manufacturing, what you're seeing with your # C24VV TriFlex is most likely caused by having the output or gain of the controller turned all the way up with the sensitivity turned all the way down. If you increase the sensitivity, you'll see more voltage output displayed. I would be curious to know why you have the controller output turned all the way up? You'll want the controller to apply enough voltage to the trailer brakes-...
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  • Constant Power on Blue Wire of Curt TriFlex Trailer Brake Controller
    If the Curt TriFlex Trailer Brake Controller part # C24VV shows power on the blue wire without the brake pedal depressed or the manual override engaged then the unit is defective and needs to be replaced. For this, you could go with the same model or upgrade to the Curt Assure Trailer Brake Controller part # C49UR which is their newest model and uses the same plug. I have also attached the owner's manual of the TriFlex below if further troubleshooting is needed.
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  • Is there a Brake Controller Wiring Harness for a 2008 Mercedes GL550
    There isn't an aftermarket brake controller wiring harness that will fit your 2008 Mercedes GL550, so you have a couple of options. First you can see if there is an adapter from a Mercedes dealer with one end that plugs into the port under the dash and the other end with just wires. Then you could wire the controller to that adapter harness. The other option is to determine the functions of the pins in that port using a circuit tester such as # PTW2993 or a meter if you have one. One...
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  • Parts Needed to Add Electric Brakes to Trailer and Tow With 2010 Toyota Tacoma w/ Tow Package
    We have all the parts you need to install and use electric brakes on your 1999 Jayco and tow it with your 2010 Toyota Tacoma; since you already have a 4-flat and have the Curt TriFlex NEXT Trailer Brake Controller # C24VV and Wiring Adapter # C51362 you won't need anything else for your truck. As for the size of your brakes, there are numerous models of a1999 Jayco Heritage Manistee so I was unable to confirm the exact size you need so you will need to measure the diameter and depth of...
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  • Parts Needed to Install Curt Triflex and 7-Way on 2003 Chevy Express
    Since your 2003 Chevy Express Van has Hopkins 4-way wiring that would indicate that your van does NOT have the factory tow package so to install the Curt Triflex part # C24VV with the # C51515 you'd need the 4-way to 7-way brake controller install kit part # ETBC7. You would not need the HM40975 nor would you need to run a blue wire to the front of the vehicle.
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  • Parts Needed to Install Brake Controller in 2015 Subaru Outback Wagon
    You are on the right rack. The # ETBC7 comes with everything needed to convert the 4-way to a 7-way and install a brake controller. The Curt Triflex part # C24VV is a fantastic brake controller that would work well in your 2015 Subaru Outback and would install just fine with the # ETBC7. Check out the install video I attached that shows a controller installed in a similar Outback.
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  • Troubleshooting Curt TriFlex C24VV Having L.b and Error Codes
    I would be happy to help you troubleshoot the braking issues you are having with your Curt TriFlex Trailer Brake Controller # C24VV. There is not a L.5 error code programed into the controller but there is an L.b which indicates low voltage powering the controller. Then the -- you mentioned means that the battery is not giving enough voltage for the controller to work properly. Since you are getting both of these codes I recommend double checking the black power wire for the # C24VV....
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  • Brake Controller, Weight Distribution and Transmission Cooler Recommendation for 2016 Toyota Tundra
    We can help you with all things you mentioned! First, the Curt Triflex brake controller part # C24VV is a great option as our customers love it and because it works very well. To install it you would only need the install harness part # C51455. This will make installation very simple. For the weight of your trailer the best weight distribution with sway control will be the Equal-i-zer part # EQ37060ET which has a tongue weight range of 200-600 lbs and features the only sway control that...
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  • Trailer Brakes Lock Up After Installing Curt TriFlex Brake Controller
    If your trailer brakes are locking up with the Curt Tri-Flex Trailer Brake Controller # C24VV, I have to start with checking to ensure you have adjusted the brake setting on the controller to something other than the highest settings, which can result in aggressive braking. Otherwise, the issue with brakes locking up with a brake controller is that there may be an incorrect connection in your wiring. The issue is most likely that your brakes are connected to the 12 volt power on your...
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  • Troubleshooting Curt TriFlex Trailer Brake Controller C24VV That Displays U Error Code
    Thank you for the photo of the display on your Curt TriFlex trailer brake controller # C24VV that shows what looks like a letter U. There is no such actual letter U among the various operating and troubleshooting codes so I think potentially what may have happened is that part of the display has failed, and it is no longer showing the entire code. The nearest codes to what your unit shows are L.1., which indicates the unit's selected sensitivity level; and L.b., which indicates that the...
    view full answer...
    Image 1 for
  • LED Display of Curt TriFlex # C24VV Brake Controller Remains Illuminated When Vehicle is Shut Off
    Because it's connected to a constant 12-volt power source, the LED you mention will remain illuminated after the vehicle is shut off. This is normal, and does not indicate a problem of any kind. After 15 or so minutes of inactivity, the brake controller goes into a 'sleep' mode, and will reactivate next time the brake pedal is pressed. The LED only draws a few milliamps of power, which would only drain the battery if the vehicle sat unused for months. You could certainly unplug the controller...
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  • Brake Controller Recommendation for a 2003 Ford Ranger
    Does your 2003 Ford Ranger already have a 7-Way trailer connector? If not then to install a brake controller you will need to also install # ETBC7. If you do already have a 7-Way connector you will just need # 5506. For a brake controller I recommend the Brake EVN # TK63VR. This is a "nothing fancy" proportional brake controller that will be great for your application. Proportional controllers like this will apply the trailer brakes in proportion to how much the tow vehicle is braking. I...
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  • Troubleshooting Curt TriFlex Trailer Brake Controller With Erratic Digital Displays
    I called my contact at Curt and they told me you can possibly reset the brake controller by unplugging the 12V power form it and then let it sit for a few minutes. Then turn it back on and that may take care of the issue. Make sure the trailer is not plugged in when you do this. Then I recommend checking the trailer plug with the trailer unhooked to see if there is current when the brake controller is off and then check it again when the controller is on. They said the erratic display...
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  • Why Would Vehicle Not Want to Start After Installing Brake Controller
    That's not good! Is it possible your battery died from having the door open and the dome lights on? I've done that a couple times when installing stuff in the interior of a vehicle before. The install harness should not have caused this issue. You might get a jump from someone nearby or we have battery chargers like the part # CTEK56353.
    view full answer...
  • Curt TriFlex Brake Controller C24VV Does Not Show Red Dot on Display After Installation
    The Curt TriFlex Trailer Brake Controller, part # C24VV, and the matching harness for your 2007 Chevrolet Silverado Classic, part # C51352, will work with your vehicle as long as your 7-way connector on your rear bumper is not the type that includes LED test lights. Such 7-way connectors are not compatible with the Curt TriFlex. It is critical that before installing the controller the negative battery terminal be disconnected to avoid potential damage to the unit. Also, the trailer must...
    view full answer...
  • Troubleshooting Error Code A.E. on Curt TriFlex Trailer Brake Controller C24VV
    The operating instructions for the Curt Triflex brake controller # C24VV, which are linked for you, indicate on page 19 that if the unit displays the error code A.E. this indicates an internal fault with the controller's accelerometer. This is not a serviceable problem and the unit should be replaced or referred to Curt for warranty service under the terms of the limited lifetime warranty. You may care to review the linked article on brake controllers.
    view full answer...


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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video by:
Joshua S
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Installed by:
Michael B
Employee Ryan G
Test Fit:
Ryan G
Employee Amanda K
Written by:
Amanda K

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