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Hopkins InSIGHT Flex-Mount Trailer Brake Controller - 1 to 4 Axles - Proportional

Hopkins Brake Controller

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Code:   HM47297



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Hopkins Brake Controller - HM47297

Get proportional braking with this convenient and innovative brake controller. Mount the brain portion of the system out of sight; put the controller in an easy-to-access area; and affix the digital display to your dash for easy viewing.


  • Brake controller activates trailer brakes in proportion to your vehicle's braking action
    • Automatically adjusts trailer's braking based on deceleration of tow vehicle
    • Activates immediately - no pausing like with time-delayed brake controllers
  • Flex-Mount system includes 3 separate pieces, each of which can be mounted in multiple locations
    • Flex-Display mounts on dash or anywhere in your line of sight
      • Digital display shows braking percentage and diagnostics
    • Flex-Control attaches to any easy-to-reach area
      • Manual override, sensitivity button, and power adjustment buttons
    • Smart-Box goes on kick panel or side of center console
      • Inertia-based control must be pointed in the direction of travel
  • 7 Sensitivity levels let you adjust initial braking power and aggressiveness
  • Integrated short circuit protection
  • Built-in, slide-style manual override
  • Mounting hardware included
  • Universal wiring harness or plug-in, vehicle-specific brake control adapter (sold separately) is required for installation


  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Designed for use with electric or electric-over-hydraulic trailer brakes
  • Smart-Box mounting:
    • 360-Degree vertical plane operating range
    • 10-Degree horizontal range
  • Wire length on Flex-Display and Flex-Control: 4'
  • Limited lifetime warranty

Many proportional brake controllers have restrictions on how and where they can be mounted in your cab. Even if the limitations on mounting a particular controller are relatively few, you still must find an appropriate place in your cab to install it. Typically, brake controllers are mounted beneath the dash. This is done in part to keep the controller relatively out of the way, though still within reach, and in part because this is usually where your vehicle's brake controller wiring harness is located. But this can make it difficult to reach the manual override on the controller, and it makes it nearly impossible to see the display.

Hopkins InSIGHT Flex-Mount Brake Controller Mounted

With the InSIGHT Flex-Mount brake controller, you are free to customize your cab as you see fit. Mount the Flex-Display unit (1) anywhere you can easily see it. Attach the Flex-Control (2) somewhere within easy reach so that you can activate the manual override and adjust the sensitivity. Install the Smart-Box (3) in an out-of-the-way location - either on the side of your center console or on your kick panel - and forget about it. Then simply connect the display and the control to the Smart-Box unit with the integrated plug-in wiring harnesses.

No more inability to see the brake controller's display. No more having to reach around blindly searching for the controller beneath your dash. No more hitting your knee on an obtrusive unit. Now your vehicle will look the way you want while being outfitted with a brake controller that works the way you want.

Proportional Braking

With a proportional brake controller, you can get heavy-duty emergency braking, general braking, or slow-to-an-idle braking for your trailer automatically. The intensity with which your trailer brakes are activated and the rate at which they are applied are dependent on the deceleration of your tow vehicle. This means that, unlike time-delay controllers - which send the same amount of preset power to your trailer brakes every time - proportional controllers are able to adapt to every braking situation differently. So, if you slam on the brakes in your truck, your trailer brakes will activate with that same extreme intensity. And if you merely slow down as you approach a red light, your trailer will gradually brake in the same manner.

As long as the InSIGHT Smart-Box is properly mounted according to the included instructions, it will sense - via an internal inertia sensor - how your tow vehicle brakes. This inertia-based sensor responds to the deceleration of your tow vehicle as you brake by signaling the controller to send out enough power to your trailer brakes so that they are activated with an intensity that matches. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.

Power and Sensitivity Adjustment

Getting the braking power you need for your application is simple with the InSIGHT. First, set the overall power so that you can achieve maximum braking without locking up your trailer brakes. This can be done using the plus and minus buttons on the side of the Flex-Control unit.

Hopkins Flex-Control Sensitivity Button

Once you have the overall power set, you can fine-tune the power output by adjusting the sensitivity of the internal sensor. Use the button labeled "S" on the side of the Flex-Control to achieve your desired degree of intensity. There are 7 levels to choose from. The first level offers the least amount of sensitivity, making it ideal for lightweight setups. The heavier your load, the higher you will want to take the sensitivity. At level 7, the sensitivity of the internal sensor is as high as it can go. This level is particularly beneficial if you are towing a heavy load because the intensity required to stop that load may be far greater than that needed to halt your vehicle. Therefore, sending out more initial power to the trailer brakes - and causing them to reach maximum braking faster - allows you to better control the trailer so that it doesn't push your tow vehicle before coming to a complete stop.

Simple, Customizable Installation

Each piece of the InSIGHT can be mounted in multiple locations within your cab so that you can customize installation to suit your needs and preferences. Because all 3 parts connect with the specially designed wiring harnesses, you will have to pay attention to how far apart the pieces are spaced and think about how to run the wiring.

Hopkins Flex-Display Mounts on Dash or Center Console

Affix the Flex-Display to a surface that is within your sight line. This can be your center console, your dash, or somewhere near your instrument panel. Once you've determined the ideal location, attach the display with the included double-sided tape.

Hopkins Flex-Control Mounts on Lower Dash or Center Console

The Flex-Control should be mounted in an easy-to-reach area so that you have fast, simple access to the manual override, as well as to the other controls on the unit. This could be almost anywhere on your dash or center console. The supplied mounting bracket lets you attach the Flex-Control to a curved surface for even more mounting options. The Flex-Control, like the Flex-Display, can be affixed with the included double-sided tape.

The red light on the Flex-Control unit will remain on at all times. This safety feature ensures that you will always be able to find the control, even in the dark.

Hopkins Smart Box Mounts on Kick Panel or Center Console

There are no restrictions on the vertical angle at which the Smart-Box can be mounted, but it does have to be pointed in the direction of travel for the internal accelerometer to properly function. You can mount the Smart-Box on the side of your center console or on your kick panel using either the included double-sided tape or self-tapping screws. If you choose to mount it to your kick panel, make sure that the box does not interfere with your emergency brake pedal.

To connect the Smart-Box to your vehicle, you must either purchase a universal wiring harness to hardwire the box directly into your vehicle or a custom wiring adapter designed to plug into the box and your vehicle. To hardwire the Smart-Box, you must remove the plug at the end of the integrated wiring harness.

Installation Accessories

A vehicle-specific wiring adapter (sold separately) is available for most newer trucks and SUVs. One end of the custom adapter plugs into your vehicle, and the other end plugs into the Smart-Box - no hardwiring required.

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'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.

47297 Hopkins In Sight Flexible Mount 3-Piece Proportional Trailer Brake Control

Video of Hopkins InSIGHT Flex-Mount Trailer Brake Controller - 1 to 4 Axles - Proportional

Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.

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Video Transcript for Hopkins Brake Controller HM47297 Review

Today were going to review part number HM47297. This is the Hopkins Insight flex mount trailer brake controller. This brake controller will activate your trailer brakes in proportion to your vehicles braking action. It will automatically adjust your trailers braking based on the deceleration of the tow vehicle, and it does activate immediately so theres no pausing like with some of the time delayed brake controllers. The flex mount system here includes three separate pieces each of which can be mounted in different locations; the flex display which is this one right here. This will mount on the dash or anywhere in line of sight, does come with a cord that plugs into the smart box.

Its about a six foot long cord so you still have to make sure you place it to where that cord can plug into the smart box. Has a digital display which will show braking percentage and diagnostics. The flex control which is this one right here, this will also attach to the smart box. It has about a four foot long cord, and you want to have that in an easy to reach area, and it does have this manual override you can see right here. On this side theres an S button.

It stands for sensitivity button, and on the other side there are two buttons that show plus and minus or up and down and those are your power adjustment buttons. Now this smart box, this is actually the brain of the unit. This will mount onto your kick panel or the side of your center console. It is an inertia based control which must be pointed in the direction of travel. So if your vehicles moving this way you want this to be mounted on the kick panel or on your center console either way.

Now when you do mount it it does need to be you can mount it 360 degrees vertical plane. It has a 360 degree vertical plane operating range, but as far as the horizontal range which is side-to-side, you dont want to go really much more than 10 degrees either way. Now it does have, this flex control does have seven sensitivity levels which lets you adjust your initial braking power and the aggressiveness. This whole system has an integrated short circuit protection. As you can see it has the on the flex control is the built in slide-style manual override.

It comes with the mounting hardware, does also come with this pigtail universal wiring harness. Now we also do sell, and I would recommend to check the fit guide on our website for your vehicle, but we do sell vehicle specific brake control adapters that you can just plug this into the smart box and then plug it into the factory brake controller on your vehicle. For this case I'm going to demonstrate the brake controller and we're going to use this universal one that just has the pigtails wires. And I do have a power supply that were going to hook it up to so we can get some power and just show you how the brake controller will work. Once we have those all connected, now well just go ahead and you can see here it just plugs into the smart box. This would be mounted on your kick panel. And then what you want to do is find a place for your flex control, and basically when you plug these in theres two different holes so you cannot plug them into the wrong port. So this one would basically plug into here and the display itself will actually plug into the middle one. So now that weve got that all wired up, when I turn on the power youll be able to see this one will actually, the flex control will have a red light, and youll see on the display itself when it shows a trailer is connected it will just show a single red dot. If there was no single red dot like if I turn this off, that means a trailer is not connected. So once you turn it on or connect it, youll see the number will come up and then it will just go to a single red dot. Now when you move this manual slide, youll be able to see as you push this down you can see the percentage thats applied to your brakes, and you do set that amount. The first thing youll do on the flex control is set your power output. So if you push that down and then you can push plus you can see itll change it a percentage. Thats a percentage so each time you push this up or down itll change it 5%. And then youll go to the other side and then youll see as you push the sensitivity button thats two, three, four, five, six, seven. Theres seven different levels so depending on the load youll be towing, if its a heavier load youll go up to a higher sensitivity level, and then basically this will be in reach so if you have to have a situation where you have to apply the brakes immediately, youll just push this manual and as you can see whatever you had it set at, it will give you the maximum output to your brakes. And again the application for this brake controller is for trailers with up to four axles or eight brake assemblies. It is designed for use with electric or electric over hydraulic trailer brakes, and it does come with a limited lifetime warranty. And that should do it for the review on part number HM47297, the Hopkins Insight flex mount trailer brake controller. .

Customer Reviews

Hopkins InSIGHT Flex-Mount Trailer Brake Controller - 1 to 4 Axles - Proportional - HM47297

Average Customer Rating:  ratingratingratingratingrating4.9 out of 5 stars   (7 Customer Reviews)

- HM47297

ratingratingratingratingrating by: Mark T.11/17/2013

Is this review helpful?

As the first-time owner of a trailer I needed advice and got the exact information I needed from a very helpful associate. He saved me a few dollars at the same time. This brake controller installed without a problem and worked exactly as advertised. The flexibility of the mounting process was great and is visible yet out of the way.107609

- HM47297

ratingratingratingratingrating by: "JB"03/05/2014

Is this review helpful?

I purchased the Insight Flex Mount Brake Control with the Factory Cable Connector. Was very happy with how the order was handled from the very start by Stephen. Everything he said would happen did so. Shipping was very quick and just what he said it would be. Will definitely deal with e-trailer again and recommend to all my friends. Service very Excellent!! Thanks Stephen!118591

- HM47297

ratingratingratingratingrating by: vern z.12/30/2013

Is this review helpful?

have not had a chance to tow with this yet but was easiest install I think I have ever done on a vehicle. took maybe an hour love being able to locate items where ever I want, thanks for help from tech people to help me locate vehicle connector some companies say they support but rarely do you do a top notch job thanks111532

- HM47297

ratingratingratingratingrating by: Ben W.02/24/2014

Is this review helpful?

The brake controller, and instructions worked perfectly, with very few tools required. The system worked on first startup. Issue - The Ford F250 adapter is fully functional, but is way too taught! This cable should be at least 4 inches longer to allow for proper cable routing.117387

- HM47297

ratingratingratingratingrating by: Matt E10/28/2013

Is this review helpful?

Everything I ordered was exactly what I needed to install a trailer brake controller on my 2002 Tacoma with ease. The products were excellent and installation was simple.105470

- HM47297

ratingratingratingratingrating by: Rod Cague03/11/2014

Is this review helpful?

Product was easy to install and when I had a question on the operation of the unit Hopkins was easy to get in touch with and the tech had the answer 120159

- HM47297

ratingratingratingratingrating by: Ron B.03/17/2014

Is this review helpful?

the InSight Flex-Mount Brake controller was perfect for what I wanted and very easy to install and what makes it perfect is being able to put the components where you want or need them121016

Ask the Experts about this Hopkins Brake Controller
Expert Answers about Hopkins InSIGHT Flex-Mount Trailer Brake Controller - 1 to 4 Axles - Proportional - HM47297                                           Do you have a question about this Brake Controller?

  • Is A Wiring Adapter Harness Needed to Install Brake Controller on 2008 Chevy Silverado
  • When GM began manufacturing the New Body Style in 2007, they eliminated the need for a wiring adapter harness (until the 2014 model year, when they went back to using a harness). The tow package wiring harness is bundled up under the dash, and terminates in blunt cut wires. The harness will typically have a white tag attached to it, which would be located directly above the junction box in your photo. (It just missed appearing in your photo.) The harness will contain a red (or red and black s
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  • How to Install the Hopkins InSIGHT Flex-Mount Trailer Brake Controller on a 2009 Ford E-350
  • If your Penske truck was built on a Ford E-350 chassis then it is possible that it does have a plug to plug in a brake controller, though additional components will be needed to complete the installation. You will need to check behind an access panel on the center of the dash but more on the passenger side. Pry the panel off gently. The connector should be behind this panel. If so then you would use brake controller wiring harness # HM47855 for use with controller # HM47297. Since your va
    view full answer...

  • Will the Hopkins InSIGHT Trailer Brake Controller Fit a 2013 Toyota Tacoma
  • We have a couple of videos showing typical installations of the Hopkins InSIGHT brake controller # HM47297 on a Ford F-250 and on a GMC Sierra (linked for you) but not on a 20113 Toyota Tacoma as of yet. The mounting options for the display and the controls are nearly limitless. The box that plugs into the truck though has to be installed in the direction of travel in a certain orientation, see instruction link. For a 2013 Toyota Tacoma with factory 7-Way trailer connector, you will also need
    view full answer...

  • Wiring Hopkins Brake Controller # HM47297 To Stop Light Switch On 2011 Jeep Liberty
  • When wiring the Hopkins InSIGHT Flex-Mount Trailer Brake Controller, part # HM47297, for your 2011 Jeep Liberty, you will need a circuit tester, like the Quickee Circuit Tester, part # 3808, to test each wire function. If you do not have a factory tow package on your Liberty, it is recommended to use an installation kit like part # ETBC7. You may also need a 4-way connector like part # C56175. When splicing the red wire from the brake controller into the brake light switch, you will need to
    view full answer...

  • If Hardwired In Does Hopkins InSIGHT Brake Controller Need to be Re-Set Each Time Engine Turns On
  • My technical contact at Hopkins confirmed that if The Hopkins InSIGHT brake controller # HM47297 that you referenced is installed correctly your settings are saved in the memory when the engine on your 1996 Chevy S-10 pick-up is turned off. If you bypass the installation instructions and run it through your fuse panel then the brake controller will shut off and need to be re-set each time your vehicle is started. According to the installation instructions which I have attached you will want t
    view full answer...

  • Installation Of Hopkins # HM47297 Brake Controller On 2010 Volkswagen Golf TDI
  • The Hopkins Brake Controller, part # HM47297, will work for your 2010 Volkswagen Golf. With limited space, the option of three separate components can prove to be a benefit. It features seven sensitivity levels that allow you to adjust the braking power and aggressiveness, and has a built-in, slide-style manual override. Mounting hardware is included with this brake controller. There are a couple of other things needed to complete the brake controller installation. You will need the Universa
    view full answer...

  • Hopkins Insight Brake Controller on 2001 Chevy Silverado 3500 Works With Switch, But Not With Pedal
  • When a brake controller applies the trailer brakes with the manual override but not the brake pedal, typically it is the brake controllers connection to the stoplight switch that is at fault. Use a circuit tester like the # 40376 to test the red wire exiting the smart box. You should see voltage on this wire when the brake pedal is pressed. If you find no signal on that wire, the most common cause of this happening is a blown CHMSL fuse. The CHMSL (Center High Mounted Stop Lamp) , also known
    view full answer...

  • Will Hopkins InSIGHT Flex-Mount Trailer Brake Controller Fit a 2014 Toyota Tundra
  • Yes, you can use the Hopkins InSIGHT brake controller, # HM47297, with your 2014 Toyota Tundra. If your Tundra came with a factory installed 7-Way trailer connector you will also need wiring harness # HM47815 which plugs into the factory brake controller connector on your Tundra. The factory brake controller plug on your Tundra is normally located underneath the dash, to the left of the steering column, taped to another harness near the emergency brake pedal. But it could also be behind the k
    view full answer...

  • How Does the Hopkins InSIGHT Trailer Brake Controller Install on a 2003 Western Alpine RV
  • The Hopkins InSIGHT brake controller # HM47297 does come with a harness so that you can hardwire it into a vehicle. If your 2003 Western Alpine was built on the Ford F-53 chassis by any chance, there may be a plug in harness available that would make installation easy. If it is the F-53 chassis, there is a brake controller plug located behind the instrument cluster. It is difficult to get to though. Take a look at the picture showing where it is. You would use harness # HM47855 to plug into this
    view full answer...

  • Does Hopkins InSIGHT Brake Controller have Manual Override and Light Vehicle Brake Lights
  • If you disconnect power to the Hopkins InSIGHT Flex-Mount Trailer Brake Controller # HM47297 it will cause the brake controller to loose its memory and will require resetting. I spoke to my contact at Hopkins about current draw in idle/standby mode if the brake controller is wired so that it has constant battery power. His response was there is very little, if any, current draw, a few milliamps. He said he has used this brake controller in his van and has never had an issue with the battery
    view full answer...

Info for this part was:

Test Fit:
Joe V

Edited by:
Leah B

Photos by:
Jackie C

Expert Research:
Michael L

Video by:
Andrew K

Written by:
Lindsey S

Expert Research:
Michael H

Video by:
Joshua S

Test Fit:
Nicholas E

Video Edited:
Andrew L

Video Edited:
Dustin K

Test Fit:
Shane T

Expert Research:
Lori W

Expert Research:
Jeffrey L

Video by:
Alan C

Video Edited:
Chad S

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