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Brake Buddy Classic 3 Portable Supplemental Braking System

Brake Buddy Classic 3 Portable Supplemental Braking System

Item # HM39494
Our Price: $1,129.43
Tow Bar Braking Systems

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Shipping Weight: 17 lbs
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Get reliable braking with this lightweight, portable system. Actuator unit applies towed car's brakes after receiving signal via internal inertia sensor. Braking power settings let you adjust brake intensity based on your towed car's weight. Great Prices for the best tow bar braking systems from Brake Buddy. Brake Buddy Classic 3 Portable Supplemental Braking System part number HM39494 can be ordered online at or call 1-800-940-8924 for expert service.
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Brake Buddy Tow Bar Braking Systems - HM39494

  • Brake Systems
  • Air Brakes
  • Air Over Hydraulic Brakes
  • Hydraulic Brakes
  • Pre-Set System
  • Brake Buddy
  • Portable System
  • Recurring Set-Up

Get reliable braking with this lightweight, portable system. Actuator unit applies towed car's brakes after receiving signal via internal inertia sensor. Braking power settings let you adjust brake intensity based on your towed car's weight.


  • Supplemental braking system applies towed vehicle's brakes with preset intensity when it senses braking action of RV
    • Internal inertia sensor detects deceleration of towing rig and signals system to apply towed car's brakes
  • Braking power settings ensure that the system applies your car's brakes with the correct pressure
    • Eliminates over-braking and the damage it can cause
  • Advanced terrain-sensing ability prevents false braking
    • System won't activate when going over bumps
  • Wireless receiver plugs into 12V accessory outlet in cab of RV
    • Illuminates when system is activated
    • Flashes when car battery drops to below 10V
    • Gives off audible alert during breakaway
  • Lightweight, portable system is easy to position, adjust, and remove
    • TruFit risers allow unit to sit level for optimal performance
    • Quick-Lock clevis is simple to install on almost any car's brake pedal
  • Easy-Pull harness provides power and breakaway connection
  • 15-Amp charger charges your towed car's battery while you tow
  • 1-Touch Auto Start sequence prepares braking system with a push of a button
    • Removes excess vacuum pressure from your car's brakes
    • Checks braking system for errors
  • Compatible with hybrids and other cars with electric power-assist brakes


  • Dimensions: 19" long x 11-3/4" wide x 6-3/4" tall
  • Power draw at 12V: 15 amps
  • TruFit riser adjustment range: 1" - 4" tall
  • Easy-Pull harness length: 36"
  • Weight: 11 lbs
  • 5-Year limited warranty

Note: Removing your vehicle's floor mat before installation is recommended.

Automatic Braking Action

The Brake Buddy Classic 3 has a built-in inertia sensor that detects when your rig slows down. Once the system recognizes that you're braking, it will engage the actuator arm to press your towed car's brake pedal with an intensity chosen by you.

The main unit of the Brake Buddy Classic 3 is designed to activate only when deceleration is actually taking place. It is built with advanced terrain-sensing technology that keeps the unit from activating when you go over bumps in the road. As a result, your towed car's brakes won't engage unless you intend for them to engage.

Braking Power Settings

Classic Control Panel

The braking power settings determine how intensely the Brake Buddy Classic 3 applies your towed car's brakes. When you're first setting up the Brake Buddy, choose the braking power setting that's recommended for your vehicle type, as seen on the chart below.

Vehicle TypeRecommended Setting
Cars and Compact SUVsLow
Mid-size Crossovers, Mid-size Pickups and Small SUVsMed
Full-size SUVs and PickupsHi

The setting should be enough to cause your towed car to give a slight tug at your RV during a braking event. Braking power doesn't normally need to be reset unless you're changing to a different towed car.

Note: For hybrids or other cars with power-assist brakes, switch the braking mode to Hybrid mode.

Wireless Alert System Monitors Braking Action

Classic Receiver

Included with the Brake Buddy Classic 3 is a wireless receiver that will alert you of braking activity from the Brake Buddy actuator unit. This receiver inserts into the 12-volt outlet in your RV's cab.

Classic Transmitter

A separate transmitter plugs into the actuator box to send signals to the receiver.

When the Brake Buddy unit activates the towed car's brakes, the receiver will illuminate. If the towed car breaks away from your RV, the receiver will produce an audible signal.

Powering the Brake Buddy

Instead of connecting to a 12V accessory outlet, the Brake Buddy Classic 3 draws power directly from your towed car's battery. To do this, the included wiring harness connects to your car's battery. Install the harness by routing the wire end through your car's firewall and into your engine compartment. Connect the harness to your battery with the included battery wire and ring terminal.

Mount the connector that's on the opposite end of the harness in a convenient, out-of-the-way location beneath your car's dash.

Easy-Pull Harness

To connect the actuator unit to this connector, use the included Easy-Pull harness. This harness plugs into the connector below your dash, then into the braking system. When connected, the harness carries both power and breakaway functions in a single cord. And the large grip ring and wide handle make it easy to hold while connecting and disconnecting the actuator, all without ripping connectors or pulling on wires.

If you're concerned about your car's battery going dead as you tow, don't worry. The Brake Buddy Classic 3 includes a 15-amp charger that pulls power from your RV to keep your car's battery charged while the Brake Buddy is connected.

Fast Setup and Universal Design

Not every car is built the same. Some have brake pedals with unusual shapes. Some have uneven floorboards or mats. These differences can make it difficult to set up a portable braking system in your towed car. But the Brake Buddy Classic 3 is able to fit in almost any car on the market.

Quick-Lock Clevis

The Brake Buddy's actuator arm comes with an adjustable Quick-Lock clevis, which securely wraps around your towed car's brake pedal, regardless of the pedal's size or shape.

The clevis also comes with a quick-locking lever. Once you adjust the jaws of the clevis to fit your brake pedal, turn the lever to tighten the clevis in place. And when you're done towing, disconnecting the clevis is a snap. Just turn the lever to release the clevis jaws, and remove the clevis from your brake pedal. It's that simple.

Risers Off Kilter

Uneven floorboards can cause a portable braking system to sit at an angle in your towed car. This affects the leverage of the actuating arm, which can result in ineffective braking. Each of the TruFit risers on the Brake Buddy Classic 3 actuator unit can be individually adjusted, raising or lowering each corner of the actuator unit, so that the system sits level in your car. As a result, the actuator arm is able to press straight against the brake pedal to ensure that your brakes are properly depressed every time.

TruFit Risers with Wrench

To adjust the height of the risers, twist them counterclockwise, either by hand or with the included riser wrench. Pull each riser out to match the height you need, then twist the riser clockwise to secure it at that height.

One-Touch Auto Start

Classic AutoStart

The Brake Buddy Classic 3 will automatically check your brakes every time you start it up to confirm that your vehicle is ready to tow. After setting up the unit in your towed car, press the Auto Start button on the unit's control panel. The arm of the unit will push and release the brake pedal several times, removing vacuum pressure from the brakes to prevent overbraking. The unit will also check for any connection errors.

39499 Break Buddy Digital Classic Three Portable Towed Vehicle Braking System by Hopkins

Installation Details HM39494 Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Brake Buddy Classic 3 Portable Supplemental Braking System - HM39494

Average Customer Rating:  4.5 out of 5 stars   (183 Customer Reviews)

Get reliable braking with this lightweight, portable system. Actuator unit applies towed car's brakes after receiving signal via internal inertia sensor. Braking power settings let you adjust brake intensity based on your towed car's weight.

2017 Jeep Wrangler

I purchased this BB Classic 3 in October 2020 after my old BB Classic that I purchased in 2008 failed to hold pressure for the piston. I bought this for my 2017 Jeep Wrangler but due to (1) the depth and unevenness of the driver's floor board, (2) the seat adjustment bar prevents BB Classic 3 from pushing against the seat and (3) the adjustable legs are not long enough to reach the seat and brake pedal properly, the BB Classic 3 fails the auto start test every time due to not being able to level. I talked to Hopkins MFG techs several times trying to resolve the issue (wiring checks, power cord checks, etc.) but to no avail. This situation makes the BB Classic 3 dangerous to have in service because not being level it will think something is wrong and keeps the brake applied (piston will not retract after applying the brake). So after talking to other Jeep Wrangler owners I determined that a platform was needed for the floor board on which the BB Classic 3 could rest. I constructed a platform that was approximately 3" off the floor board and rested on the floor board under the seat and on risers toward the brake pedal. This platform is level on the floor board both length-wise and width-wise. After placing the BB Classic 3 on the platform with clevis and power cord installed and legs in the lowest position, I tested the auto start and had 8 successful tests in a row!!! Also the brake away test was successful too. I still need to make a short drive test while in tow behind the motorhome. Hopkins really needs to advise customers that the Classic 3 will not work properly as is on a 2017 Jeep Wrangler due to the configuration of the driver's side floor board.

Etrailer Expert

Jenny N.


I appreciate the innovative solution to allow the Brake Buddy to work for your 2017 Jeep Wrangler. I spoke with Hopkins who did advise that it is ok for the Brake Buddy to rest against the base of the rails under the front seat.


Just follow the instructions and it's an easy set-up. It does its job on the road. If there was anything negative, it would be where to store it when not in use. But, that has nothing to do with its performance. Thank you etrailer for making so many things available to us!



One of the legs busted.

Etrailer Expert

Mike L.


The unit is protected by a 5-year warranty, call us for warranty information, please.

2011 Honda CR-V

The system has great potential but I don't know if it is actually working. The transmitter in my Rv's 12 volt socket is suppose to turn red when I hit the breaks but it never turned red on a full 8 hour trip. It turns red when I hit the auto button or pull the pin from the breakaway box but never while actually driving. I have no idea if it works. That's why I give it two stars. I just bought this system this October 2023 from etrailer (Order # 120078365) and I'm disappointed. I may return this product soon because I hate when things advertised to work do not work.


Brake Buddy 3 is the best.
super easy
to install and simple to set up. eTrailer was very helpful to get this ordered and also quick to respond to my questions.

Chevrolet Equinox

This kit worked out great for my 2022 Chevy Equinox. I like how it has separate side plates, which make it easier to attach the main bar. The points where it attaches to the frame seem plenty secure. It is important to watch the videos provided by etrailer as Ryan is very thorough and has good tips for installing. I would also recommend installing additional wiring while having the front end off. Overall, I was able to complete in my driveway. The hardest part was sorting out the wiring for whatever braking and tail lights you decide on. William S helped me pick all the necessary components needed for flat towing behind my Jayco RV. I am looking forward to a summer of camping and having more freedom to explore the area, now having a car.


Great products and fast delivery, that’s why I keep coming back to Etrailer. I’ll be using my Brake Buddy Classic 3 in my Jeep Gladiator that I plan on towing behind my class C motor home. Thanks again Etrailer for having what I needed at a great price.


The unit worked as it should. The original brake pedal clamp was an awful design and near impossible to clamp, after a complaint to the manufacturer they sent me the new design clamp and a new power cable. The unit seems big for what it does but funtions well.

Etrailer Expert

Katrina B.


With Braking systems, they are build to fit a variety of different types of brake pedals. Which means, they will fit most, but not all brake pedals.



Been working fine, no issues and about 20,000 miles.


The instructions for wiring could be more clear and more wire should be included. Other than that it was great. Thank you


I have used Brake Buddy before and would purchase it again. It’s easy to install and setup is a snap with the “auto” start button. The handle folds down and it stores nicely in our coach.

Jeep Wrangler

We have been using this product for over a year now. Love how easy it is to set up. We have had zero issues with this breaking system. Towing a Jeep Wrangler 4dr behind a class c motorhome.


I think the instructions in general need to be upgraded. When they tell you to purge the system they have you purge it while attached to the brake pedal. This did not purge the system. You need to purchase where it can fully extend. They also have a blackwire going to the positive terminal Seems like they need to get their color coding to an automotive standard I also had an issue with the power plug. It would intermittently turn the brake buddy on and off It seemed to be A bad wire inside the actual cable. The manufacture is sending a new one


The Brake Buddy works well



Very well

2001 Saturn S Series

Fairly straightforward wiring. The only thing is that the parts do not match the instructions.


Ordered the Brake Buddy was at my home within 2 days. That is Fast!

2018 GMC Canyon

Product seems to be good out of the box but haven't used it yet. A significant issue is that the installation instructions are incomplete and some connectors were not included in the packaging. Of particular note is that once you install the Dash Mount and drill a home in the firewall to put the wiring through, there are no instructions about how to connect them. I had to go to the eTrailer website where a found a video of an installation on a Jeep. The narrator did a good job of explaining the connections. Thank God for YouTube.

James D.


Poorly. Instructions were incorrect for my 2022 Chevy Colorado, tech support was unable to correct the power issue sent a new cable that didn’t help, and the unit put a slight pressure on the brake pedal shortly after starting a 5 mile test drive that caused the right front brake to overheat which started a fire. Brake Buddy manager would not answer my calls when I tried to discuss the problem. It was an $1800 repair that Brake Buddy should have offset. Poor product and poorer service


A bit tedious setting up the first time. But after that reinstalling is pretty easy. Gives my wife and I peace of mind while traveling.



Its still working just fine.


Fast shipping, great descriptions and installation videos of the products!!!

2005 Jeep Wrangler

Arrived early. Install was a breeze. The video on eTrailer that explained how to install on a Jeep was thorough and very accurate.


Works as advertised. Easy installation. Good directions. Install videos also available on YouTube that made install easy.


Easy to hook up and well designed.


I purchased the Brake Buddy from E-Trailer in the fall of 2021. I was not able to install it till late spring of this year(2022). It sat new and untouched in the factory box until that time. After unpacking, I reviewed all of the components and none were missing. I followed the installation instructions to the letter. Upon testing the system, The Brake Buddy did not show any power(12 volts DC) on the control display panel. After extensive testing and rechecking all connections, verifying 12 volts to the Brake Buddy control Panel, I decided to call Support.The support person asked for the serial# and purchase date(which I gave) and was told then that the Brake Buddy warranty period had expired.I had questions for Tech Support, in the event that I had overlooked something during the troubleshooting process. The support person on the phone wouldn't even transfer or refer me to one. I have made several purchases from etrailer in the last couple years and have been satisfied with the quality of the products. However, it ends here. I eventually found the problem with the Brake Buddy and will not disclose it here as it is your problem now and it's up to you to stretch for your customers for a change instead of piling up profits for overpriced,dysfunctional merchandise.


Easy to use. Working with etrailer was great. If we need anything else on our motorhome we will be traveling out to etrailer.


I have no idea if it works or not. The transmitter that is supposed to light up in our motorhome when it activates has never lighted up. Sooooo, I’m just guessing it works.

Etrailer Expert

Jenny N.


Your transmitter should definitely be working properly while using the Brake Buddy. You do not want your brakes to be continuously on and not receive an alert about it. I have some questions that I would like to ask. Before you begin towing you will want to test the unit to make sure that the transmitter is working. Have someone one push the Auto Start Button on the Brake Buddy. The Receiver should illuminate when the Auto Start button is pressed. If it is not lighting up with this test, then further investigation is needed. I would check to see if the outlet does have power. Also is your cigarette outlet right next to the radio? Sometimes the signal from the radio may be interferring with the transmitter and if so, then there is an extension cord available by contacting the manufacturer.


The connection from the brake buddy to the car connection at first was great. Then, after a few times, it just got very sensitive and in some cases would not make the connection. Even when it had a good connection at first, the sensitivity was just not there. You had to literally jerk down on the brakes of the RV to get it to engage. It just never worked properly.

Etrailer Expert

Sierra K.


The loose cable that runs from the brake buddy to the vehicle is a common issue and the manufacturer is aware of it. Thankfully, it is under warranty and the replacement tends to stay a bit better. I will send a note over to customer service to have them relay the warranty notice over for you.


Only checked packages so far installing on weekend.

Show More Reviews

See what our Experts say about this Brake Buddy Tow Bar Braking Systems

  • Does Using The Brake Buddy Classic 3 Require I install A Brake Light Relay On My 2013 Cadillac SRX
    Your 2013 Cadillac SRX does not require a brake light relay if you are using the Brake Buddy Classic 3 Item # HM39494. A brake light relay is used for systems that require a signal from the brake wire.
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  • Can The Brake Buddy Classic 3 Be Installed In Place Of Older Brake Buddy With Existing Wiring?
    To install the Brake Buddy Classic 3 # HM39494 in place of your existing Brake Buddy Digital Classic you're going to have to change out the existing wiring. This kit will come with everything you need for a fresh install. I have also included a review video for you to check out.
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  • Can Brake Buddy Classic 3 Brake System Work on 2017 Chevy Spark
    Yes, the Brake Buddy Classic 3 system part # HM39494 can be used on a 2017 Chevy Spark.
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  • Will the Brake Buddy Classic 3 Work in a 2021 Jeep Gladiator
    Yes. The Brake Buddy Classic 3 # HM39494 is designed to work as a universal type installation so it will work well and is one of the portable supplemental braking systems we recommend for the 2021 Jeep Gladiator. The Brake Buddy Classic 3 # HM39494 gives you proportional braking for your Gladiator that's going to help extend the life of your RV's brakes and provide for a safer dinghy towing experience. I've linked a short review video of the Brake Buddy Classic 3 for you to check out...
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  • Install Video to Use as Guide for Brake Buddy Brake Supplemental Braking System on 2018 JK Wrangler
    We actually had the chance to install the Brake Buddy Classic 3 part # HM39494 on a JK Wrangler like your 2018 model and we made an install video that covers the entire process that I have linked on this page for you to check out. This will show you where all of the connections need to be made.
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  • Is There A Temperature Operating Range For The Brake Buddy Classic 3 HM39494
    There is not a specified temperature range for the Brake Buddy Classic 3 # HM39494. I ran this question by the folks at Hopkins (Brake Buddy) to double check. The Brake Buddy unit will work in really any temperature/condition you would experience while flat towing around the country. An approx. temperature range would be between about 0 and 150 degrees F. If you are towing in extreme temps (like death valley in the summer) it may not hurt to leave a window cracked in the towed vehicle,...
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  • How To Properly Set The Clevis To Vehicle On A Brake Buddy Classic 3 Braking System
    I took a look to see if Brake Buddy offers a smaller clevis for their Brake Buddy Classic 3 Portable Supplemental Braking System # HM39494, and they unfortunately do not. However, their clevis is designed to fit almost any type of brake pedal regardless of shape or size. I also went ahead and checked the instruction manual to see if there was any tips for smaller brake pedals, and it stated: Step 1. Turn the bottom jaw (A) of the clevis to either make the clevis smaller or wider so it...
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    Image 1 for
  • Troubleshooting A Dead Battery With An 2021 Chevy Equinox And Brake Buddy Classic 3
    If you reached your destination and your Chevy Equinox started up fine but then would not after sitting overnight then you have something draining the battery that needs to be shut off when you're done towing. The charge line only transfers a charge over to the towed vehicle battery while connected to the motorhome. If you left the Brake Buddy Classic 3 Portable Supplemental Braking System # HM39494 plugged in the entire night it could've drained the battery even though you weren't towing.
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  • Which Setting for Brake Buddy Classic 3 When Used in 2017 Jeep Wrangler
    I was able to confirm with my contact over at Hopkins, who manufacture the Brake Buddy Classic 3 # HM39494 that you will want to use the standard setting with your 2017 Jeep Wrangler. You would only want to use the "hybrid" setting with an actual hybrid vehicle since the amount of brake pressure required in those braking systems is minimal compared to regular vehicles, even with assisted braking systems. I've linked an installation video of this system on a similar Jeep JK for you to...
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  • Info on the Mopar Wiring Harness Needed When Flat Towing 2017 Jeep Cherokee
    The front wheel wobble issue with the 2017 Cherokee is fairly well known at this point and it is referenced in the owner's manual, on page 354 of the online edition. That page of the manual does warn owners to be certain to use the "proper MOPAR wiring kit to power the steering system during recreational towing". Without this part the steering system can be damaged. The part number is 68321424AB and it can only be obtained through Jeep. It is designed to keep the electric steering system...
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  • Will Brake Buddy Classic 3 Supplemental Braking System Activate with Exhaust Brake
    Sounds like you have an exhaust brake in your RV and you are wondering if the Brake Buddy Classic 3 Portable Supplemental Braking System # HM39494 will activate when the exhaust brake is active as well. Since your exhaust brake will activate the brake lights of your RV the Brake Buddy will also activate as well as that is the activation circuit this unit looks for.
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  • How Does Breakaway Switch Connect to Brake Buddy Classic 3 Braking System
    It sounds like you are asking about connecting the breakaway switch of the Brake Buddy Classic 3 Portable Supplemental Braking System # HM39494. I cut out some pages from the instruction manual for you to check out, but what you'll do is actually connect the brown and red wires from the Dash Mount Connector directly to the breakaway switch itself. The Dash Mount Connector is plugged into the harness that is connected to the Brake Buddy which is how the breakaway system will operate if...
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    Image 1 for Image 2 for
  • Does The Brake Buddy Classic 3 Require Splicing Into Towed Vehicle's Brake Light Wiring
    I am happy to answer all of your questions about the Brake Buddy Classic 3 Supplemental Braking System part # HM39494. The Brake Buddy Classic 3 uses a built-in inertia sensor to detect when the motor home is braking then the the actuator arm will depress the towed vehicle's brake pedal. The only wiring you have to do with the Brake Buddy Classic 3 is to wire to the towed vehicle's battery for power. One end of the included harness connects to the vehicle's battery and the other end plugs...
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  • What Might Cause Brake Buddy 3 Braking System to Stop Functioning
    Have you tried the test procedure outlined in the install manual that is supposed to be done everytime it's used? Before you begin towing, a simple test should be performed to assure your Alert System is operating properly. Have someone push the Auto Start button on the Brake Buddy®. The Receiver should illuminate upon activation. The Alert Receiver will illuminate: (1) when the Auto Start button is pressed; (2) when the Brake Buddy® activates as a result of forward inertia (i.e., the...
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  • How To Power The Brake Buddy Classic III On A Toad Requiring Battery To Be Disconnected
    What you're going to need to do with your Brake Buddy Classic 3 Portable Supplemental Braking System # HM39494 is connect the ground wire from the Brake Buddy to the negative terminal on the battery instead of the vehicle's frame. This should take care of the issue you're having and power your Brake Buddy properly.
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  • Differences Between The Brake Buddy Select 3 And Brake Buddy Classic 3 Portable Braking Systems
    Both are great options for your 2022 Dodge Durango but there are a few key differences between the Brake Buddy Select 3 # HM39524 and Classic 3 # HM39494. The biggest difference between the two is that the Select 3 has two braking modes; proportional braking and full braking. Proportional braking will activate the brake pedal in the tow vehicle in proportion to how you press on the brake pedal in the motorhome. The full braking mode has seven sensitivity levels to customize your braking...
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  • Does Brake Buddy Classic 3 or Select 3 Have Vacuum Assist to Apply Brakes
    Nope, there is no vacuum assist at all on your towed vehicle with either the Brake Buddy Select 3 Portable Supplemental Braking System # HM39524 or Brake Buddy Classic 3 Portable Supplemental Braking System # HM39494. Both systems use a clamp on the brake pedal that will activate when you hit the brake on your motorhome.
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  • Can 2002 Jeep Liberty Be Used with Brake Buddy Braking System for Flat Towing
    Yes, both the Brake Buddy Classic 3 # HM39494 and Select 3 # HM39524 will fit your 2002 Jeep Liberty just fine. The legs on these systems are adjustable to accommodate different vehicle floors so fitment won't be an issue. I'm not sure why that answer was given but it was incorrect.
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  • Can The Brake Buddy Classic III Be Installed In Place Of An Older Brake Buddy II?
    In order to install the Brake Buddy Classic 3 on your 2009 Jeep Wrangler with existing wiring for the Brake Buddy II, you are going to have to change out the wiring as it has changed between the different models. To do this, you're just going to need the Brake Buddy Classic 3 Portable Supplemental Braking System # HM39494, which will come with the braking system as well as the new wiring needed for your Wrangler. Attached is a installation video of the Brake Buddy Classic 3 on a 2009...
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  • Comparing the Brake Buddy Classic 3 and Brake Buddy Select 3 Supplemental Brake Systems
    Great question! The Brake Buddy Classic 3 # HM39494 is a more basic system than the Brake Buddy Select 3 # HM39524 as the Classic just uses preset braking (which applies the brakes at a preset intensity when the inertia sensor detects deceleration) while Select lets you choose between proportional and full-braking action (activates towed vehicle brakes at max power regardless of RV brake pedal intensity) when you’re towing a vehicle. The Select also comes with a remote control so you can...
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  • Will Brake Buddy Select Braking System Fit 2006 Jeep Wrangler Rubicon
    There's no reason the Brake Buddy Select part # HM39524 wouldn't work in your 2006 Jeep Wrangler. It just hasn't been added to our fitguide at this time. This is a proportional braking system that senses how hard you apply the vehicle brakes and applies them in a proportional amount on the tow vehicle. The advantage the Select model has over the Classic is that it can also give you a "full brake" setup which applies full braking power all the time when brakes are applied. This is particularly...
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  • Brake Buddy Select 3 or Classic 3 for Flat Towing 2023 Jeep Wrangler
    The proportional braking you get from the Brake Buddy Select 3 part # HM39524 makes it the clear cut winner over the Classic 3 part # HM39494. This would be your best option and what I recommend. Proportional braking means the unit senses how hard you are applying the vehicle brakes and applies a relative amount of braking pressure for the towed vehicle.
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  • Comparing Brake Buddy Classic and Select 3
    There are several differences between the Brake Buddy Classic 3 # HM39494 and the Select 3 # HM39524. The main difference is that the Select is a true proportional system while the Classic is not. The Classic does have an inertia sensor but it will only apply the brakes according to the preset brake power settings, not proportionally to the braking action of your RV. The Select also lets you choose between proportional and full-braking action. This means you can have the brakes at max...
    view full answer...
  • Troubleshooting Brake Buddy Classic That's Not Powering on When Plugged Into Cigarette Lighter
    There's good chance the fuse for your cigarette lighter socket is blown on your vehicle and that is why the Brake Buddy Classic # HM39494 is not powering on. I would recommend checking the fuse associated with this circuit on your vehicle and you should find the issue.
    view full answer...

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