bing tracking image
  1. Trailer Brake Controller
  2. Draw-Tite
  3. Electric
  4. Proportional Controller
  5. Under-Dash Box
  6. Up to 4 Axles
Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional

Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional

Item # 5535
lowest price pledge
Our Price: $78.85
You Save: 9%
Trailer Brake Controller
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.53 lbs
In Stock
Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional Under-Dash Box 5535
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Product Expert Kathleen M

Is this right For you? Product Expert Kathleen M says:

Yes, if you:

  • Have a nice trailer or fifth wheel with new brakes that you don’t want to ruin
  • Want to avoid spending a bundle on a brake controller
  • Like having a number to keep in mind for the brake output rather than having to guess with a dial

No, if you:

  • Haul a trailer with hydraulic brakes
Brake controller activates trailer brakes in proportion to deceleration. LED screen shows settings and diagnostics. Features 3 boost levels. Automatically levels when mounted within 90-degrees in the vertical plane. Lowest Prices for the best trailer brake controller from Draw-Tite. Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional part number 5535 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (805)
  • Q & A (0)
  • Photos
  • Why etrailer?

Draw-Tite Trailer Brake Controller - 5535

  • Electric
  • Proportional Controller
  • Draw-Tite
  • Under-Dash Box
  • Up to 4 Axles
  • Dash Mount
  • LED Display

Brake controller activates trailer brakes in proportion to deceleration. LED screen shows settings and diagnostics. Features 3 boost levels. Automatically levels when mounted within 90-degrees in the vertical plane.


  • 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
  • Automatically levels - internal sensor detects deceleration even if controller is not mounted level
  • Boost setting lets you adjust the aggressiveness with which the brakes are activated
    • Get full power output faster by pressing the plus button to increase activation speed
    • Achieve smoother braking by pressing the minus button to supply power gradually
  • Easy-to-read LED display shows controller activity
  • Short circuit protected
  • Built-in, slide-bar manual override
  • Quick and easy installation
    • Mounting bracket and hardware included
    • Plug-in, vehicle-specific brake-control adapter (sold separately) can be used for certain applications to reduce installation time


  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Designed for use with electric brakes only
  • Mounting angle: between -20 degrees and 70 degrees in the vertical plane
  • Limited lifetime warranty

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 I-Command is properly mounted according to the included instructions, the controller will automatically level, sense the tow vehicle's deceleration, and adjust the trailer's braking accordingly. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.

Power Boost for Heavy-Duty Towing

The I-Command offers a boost feature that gives you more initial braking power for times when you're towing heavy loads. You can switch boost levels so that the power output to your trailer brakes automatically starts out at either 14 percent or 28 percent of the predetermined power setting.

So, if you boost the initial power so that your trailer brakes activate with 25 percent of the overall intensity at the start, the brakes will reach maximum braking faster. This 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.

If your trailer weighs less than your tow vehicle, no boost is needed. But if you wish to set the boost so that your trailer leads the braking of your towing setup, you can select level B1. The following table gives an indication of when you might use the different boost levels and the power increases that they offer.

Approximate Gross Trailer WeightBoost LevelIncrease in Initial Power Output
Less than tow vehicle GVWB114%
Equal to tow vehicle GVWB1 or B214% or 28%
Up to 25% more than tow vehicle GVWB1, B2, or B3* 28%
Up to 40% more than tow vehicle GVWB2 or B3* 28%

* Both B2 and B3 offer a 25-percent boost in initial power. But the braking curve for B3 is more aggressive than that of B2. This means that, even though you will start out with the same intensity when using these boost levels, you will get an overall more aggressive braking experience with the higher level. So if you use B3, you will reach maximum braking sooner than if you use B2.

Safety Features

The I-Command offers advanced safety features to prevent damage to various components of your towing setup. Integrated reverse battery protection shields the brake controller and your trailer's breakaway system from shorts.

If ever there is a time that you need to brake your trailer separately from your tow vehicle - when traveling down a steep incline, for example - the manual override lever is easily accessible. Pushing this lever engages the brakes on your trailer with full power.

LED Display

The I-Command has a digital LED display to keep you informed of your trailer's braking. The display shows the gain setting when the control is activated. It can also be used to check for connectivity with your trailer, to determine your boost setting, and to troubleshoot.

Automatic Leveling and Simple Installation

Because this controller operates with an internal inertia sensor, it must be mounted between -20 degrees and 70 degrees in the vertical plane. The I-Command must be mounted on a level horizontal (side-to-side) plane and must be lined up with the direction of travel for the internal sensor to function properly.

The automatic leveling feature of the I-Command ensures that the brake controller continues to function even as you drive up steep hills or through the mountains. Mount the controller at a vertical angle that is between 0 degrees (level) and 70 degrees, and the controller with level itself automatically.

Installation of the I-Command requires that you either purchase a custom wiring adapter designed to plug into the controller or that you hardwire the controller directly into your vehicle. To hardwire the controller, you must remove the plug at the end of the integrated wiring harness.

Installation Accessories

For easier installation, 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 controller - no hardwiring required.

For even easier installation, 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 controller - 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.

5535 Draw-Tite iCommand Proportional Trailer Brake Control

Installation Details 5535 Installation instructions

California residents: click here

Customer Reviews

Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional - 5535

Average Customer Rating:  4.8 out of 5 stars   (805 Customer Reviews)

Brake controller activates trailer brakes in proportion to deceleration. LED screen shows settings and diagnostics. Features 3 boost levels. Automatically levels when mounted within 90-degrees in the vertical plane.


Never knew there was a difference... Timed Delay is what I had, with this new Progressional trailer brake controller, my tow vehicle brakes smooth and the trailer does as well. Mounting was extremely easy using a portion of one of the "cubby Holes"


Thanks to etrailer The brake controller installation was a breeze, really just a plug and play. Once installed, the I command trailer brake controller worked as advertised. The video on etrailer made the setup and operation pretty straight forward and painless.


Great brake controller works like it is supposed to bought because it senses how much you brake and the boost settings make it better for different trailer weights. Recommend to anyone buying a aftermarket one

Still works like new after a year, would highly recommend
Slim - 10/18/2021


Brake controller installation in my 2015 Ram 1500 quad cab Tradesman was extremely easy with the factory harness adapter.


Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat, Item # ETBC7
I installed this 7-pin plug kit on my 2008 Jeep JKU to add power and trailer brake control.
I also purchased :
Draw-Tite I-Command Trailer Brake Controller Item # 5535
Curt No-Drill Bracket Item # C57202
along with a little extra wire, just in case.

The kit quality was great. It shipped with everything I needed, sans the controller and bracket above. I used a cordless drill, a quarter inch drive socket set, screwdrivers, wire cutter/crimper, pliers, black electrical tape, half inch loom (plastic flexible conduit) and quite a few extra zip-ties I had laying around. I needed the Curt bracket to mount the 7-pin plug farther away from the muffler that runs parallel to the bumper in Wranglers.

I first ran the grey jacketed wire from the rear bumper all the way to the engine compartment. This was the hard part for me since I'm old and a little more round than I'd like. I didn't need to raise the jeep since it already has a 2 1/2 inch lift. I zip-tied the jacketed wire to the frame and brake lines until I found a spot in the frame I could run it through. I ran it out of the frame at the rear of the left front wheel well and up into the engine compartment. There is a (very handy) rubber plug in the firewall just to the left (outboard) side of the brake vacuum booster. I made a small slit in the rubber plug. I removed the outer jacket from the wire at that spot and fed the white (future brake controller wire) into the cabin of the jeep. I ran the black wire, in a wire loom/conduit across the top of the firewall to the battery. I had enough extra wire to run the brake controller power and ground wire from the battery, across the top of the firewall in the same conduit, and into the cabin through the same rubber plug/grommet. I drilled small pilot holes to mount the two circuit breakers. I then connected the wires at the 7-pin plug at the rear bumper. I again made a pilot hole and then mounted the ground wire with the self-tapping screw provided in the kit.

Here I'd like to mention, I would have been happier with heat-shrink connectors. I could have gone to town and bought some, or I could have soldered the connections. Instead, I just used the provided connectors and a LOT of black tape. If I have any corrosion issues later I will replace the connectors provided in the kit.

I wired and mounted the brake controller. This would have been super easy if I could fit under the dash. I dislike using the little blue inline wire connectors (self stripping connectors) but it was a godsend when working one-handed under the dash. I mounted the controller bracket and covered most of the exposed wiring with black tape for aesthetics.

If I was 20 or 30 years younger, I would have had this whole kit installed in about 1 1/2 hours. I am very happy with the quality of the materials. Many others have already noted the bracket is not quite perfect where it is designed for the four wire plug to slip in. The four wire plug had moved slightly on my 20 minute drive to work and would likely have fallen out if I went much further. I may put a wrap of electrical tape around the plug to tighten up the fit. Otherwise I will see if a zip-tie or a drop of superglue will hold the four wire plug in place. I was a wee bit skeptical about the sturdiness of the no-drill bracket as it's held in place by what looks like a hose clamp. I am happy to report, the clamp is heavy duty and well made. The no-drill bracket with the 7-pin and 4-pin receptacles are very sturdy and secure. The instructional videos on etrailer's website made the job easy to understand.

If I had this job to do over again, I would definitely use the same products from etrailer.


5th gen 4runner. I pulled the center dash unit out in about 5 minute after watching a YouTube video. Cut a hole in the back of the small cubby next to the USB outlet and this unit fit perfectly in there. Secured with double sided tape to the bottom of the cubby. The adapter cable reached right up to the back of this unit. Plugged in and it's ready to go.


The controller seems very nice, and the instructions that came with it were perfectly good.
It was a bit of confusion in that the four wires coming off the back of the controller go into a 4-pin connector, but since my vehicle did not have trailer brake capacity from the factory, there's nothing to connect that to. And the universal trailer brakes kit I got from etrailer (which was great!) gave instructions for butts placing to those various wires. no real big deal, I just had to cut the wires and get rid of that connector but it would have been kind of nice to have the matching connector to terminate my universal kit wiring into so I could unplug the controller if I ever want to.

The controller's instructions did appear to make reference to a supplied pigtail connector, which is maybe the part that I'm expecting to have in the kit, but it wasn't supplied.

Thank you for your review! I believe the pigtail piece that you are referring to is the part 20127 on our site. This plugs into the black connector on the brake controller wiring and gives you a quick and easy way to disconnect your brake controller.
-- Etrailer Expert Jon G - 03/29/2021


Unparalleled excellence, etrailer’s continued customer support after the sale is why they should be everyone’s go to source for trailer parts and accessories.

Flawless like the day it was installed.
Henry - 03/17/2022


Super easy to install. I did have to reference two different videos while installing everything, but went in easy enough. I installed this with the ETBC7 wiring kit as well, and it all looks great. I haven’t tested it on a trailer yet, but so far everything looks to be in working order. Here are links to the two videos I watched. One video shows installing the brake controller with factory 4 pin connector and wiring in the cab by the emergency brake, and the other shows the install without the factory wiring.


Works great with my truck (2002 ram 1500) I just plugged it in to the factory connector with the harness and mounted it up and it works amazing.


I replaced my much older, time delay brake unit with this proportional brake controller. The Drawtite I Command unit was easy to install and set up. If you have an “older” time delay brake controller, do yourself a favour and get this (or similar) proportional brake control unit. The braking is so much smoother and can be easily adjusted to suit the weight of the load you’re pulling, and also if you need more brake power for better control on steep hills. When you first set the unit up and turn it on, don’t make the mistake I made, and think it’s not working when “00” shows up on the screen when you apply the brakes and the vehicle isn’t moving. Because the controller is a proportional unit, the vehicle had to be moving in order to work.
I received fantastic customer service from Joshua at etrailer, who was happy to answer stupid questions I had (why isn’t my unit working lol), and he matched my vehicle set up perfectly with this unit when I told him what I was towing. He didn’t oversell me on a unit I didn’t need. etrailer has always been fantastic in the past, and I’ll continue to get my related products through them, on this alone.
Thanks again for helping me out Joshua.


Unfortunately I was unable to install it on my 2021 Ford F150, given that it has now a proprietary module that is 3 times more expensive.

You mentioned that you were unable to install the controller and I wanted to ask you a follow up question. I know that the trucks built before August of 2021 needed to have the brake controller hardwired in. Is this what happened with your truck. I was not sure what you meant by proprietary module.
-- Etrailer Expert Jenny N - 03/17/2022
Hi Jenny, the module in question is not any that you can find in the open market - at least that was the case when I wrote - it is specially designed to fit a small enclosure in the dashboard and is integrated with the electronic controls of the car. Since I did have to have it installed for my yearly trip to the west, I bit the trap and paid for the installation, which instead of $XX.0 to XXX.00 came to over $XXX.00 Not happy to have to pay for it, but it works great.
-- comment by: Hector - 03/17/2022
It sounds like Ford installed the factory brake controller into the truck. The Drawtite controller would still have worked however it needed to be hardwired in.
-- Etrailer Expert Jenny N - 03/17/2022


Perfectly matched item for my truck/trailer connections. It was very easy to install and arrived in just a few days. I haven't had any problems with the wiring harness.


I installed the Curt gooseneck on my 1993 GMC 2 Wheel Dr. 2500 truck. All the components have tight tolerances. It took me eight hours. With a socket and the wrench. Laying on my back. I did have to cut the wheel well lip about 3/8 of an inch off because I could not get that front angle bar to slide in without hitting it, no way around it unless you lift the bed up and I wasn’t going to do that!!. You have to cut it.instructions do not state that. I’m very happy with the Hitch, it is definitely stout! I did have to make a notch on the outside brackets to go over my airbag bolt. I also had to remove the support bracket on the inside of the frame for the airbag and the crossmember for the spare tire to get the front angled bar in.


2nd time we've ordered a brake controller through and works as advertised and the harness included helps make the process go smoothly


Excellent product....easy installation and 2013 Chevy Silverado 1500 4x4....


No complaints. Everything was plug and play.


Real easy install. this time i put my controller up on the dash so i could reach it easier. In the past I've had it below my steering wheel to one side. It was too cumbersome and in that position and I always hit my knee on it when getting in and out of the vehicle.
I didn't need to adjust it, it worked great after installation.


This is my 3rd controller. I used them in all 3 of my trucks, so far never a problem, easy to adjust on the fly if needed


Hooked up the brake control with a vehicle specific adapter eliminating the chance for incorrect wiring or shorting of wires. Tried it out immediately after install & worked as designed. Using this to control the electric brakes on my popup camper pulled by a Tacoma.

Works great
JOHN P - 06/03/2017


Installation pix (3) as installed in 2020 Subaru Ascent... as you requested.

Final assembly.. controller mounted and harness wrapped in white tape

Bracket mounted in Subaru Ascent dash. Must drill hole in pretty leather but solid plastic base underneath is sufficient for solid mounting.

Trial installation ....Harness wired into Subaru pigtail for testing and adjusting the brake controller. Initial wiring used wire nuts before final installation where I used "butt connectors"

For info:
1. Dealer clueless on need for brake controller but offer a $600 tow (hitch) package that includes hitch (2" receiver) and 7 pin and 4 pin connectors. Those connectors are wired properly to provide alternator charging to trailer battery, brake lights, turn signals and trailer lights...just does not activate electric trailer brakes which they claim
2. Subaru hitch installation also includes brake controller pigtail (in plastic bag in glove box)
3. Subaru brake controller wiring plug under the dash, hidden behind a wiring bundle that was taped with pink tape. I understand the 2 high end Ascent models have this wiring connector included but dealer unaware. Google posts provide good, generic information on this wiring location but they recommend a larger brake controller which I felt was too big for he location I selected... thus I selected a smaller controller.

If this was your profession, this kit from etrailer and the Subaru connector and pigtail would allow for installation in less than an hour.


Bought the supplemental wire harness that they showed would fit my truck and had it hooked up in 15 minutes.


Install was really easy. Haven't had a trailer to hookup yet soni can't provide more info. But the controls are within reach and are easy to maneuver


Brake controller works better than most I’ve used in the past , the adjustments are incredible . HIGHLY recommended , you won’t be sorry for buying one .


Awesome product good price. Loved install videos. The only suggestion would be a recommend page at check out. My trailer brake controller need a pig tail wiring harness.

Still works great, I tow a trailer quite a lot it is fantastic.
Tim - 06/22/2021
Show More Reviews

Ask the Experts about this Draw-Tite Trailer Brake Controller

  • Troubleshooting Cruise Control Error and Check Engine Light After Brake Controller Install
    Sounds like the connection of the red wire of the brake controller is incorrect and causing the issues you described. In the past when we've had customer come back and tell us that there was an issue like this the problem ended up being that the red wire wasn't connected to the correct circuit so I would check that. Make sure it's connected to a circuit that only sees voltage when the brakes are applied and none when released.
    view full answer...
  • Should Draw Tite Electric Brake Controller Have Anything on Display When not in Use
    There should be a decimal on the Draw Tite I-Command's # 5535 display whenever the controller is receiving power but there is no trailer connected and no boost is set. If you connect a trailer you should see .c instead. I've attached an example of some displays from the controllers installation details.
    view full answer...
    Image 1 for
  • Troubleshooting Brake Controller That Doesn't Shut Off When Car Is Off and No Key In Ignition
    It is very normal for a brake controller like the Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional # 5535 to have a small time period where it still appears active after a vehicle is turned off. It normally will go into a sleep mode after about 15 minutes that requires very little draw on the battery and maintains your settings. This keeps your system from needing to be reset after each stop. It would take months in most cases for a brake controller in sleep...
    view full answer...
  • Why Would a Draw-Tite I-Command Trailer Brake Controller Have a Blank Screen Display While Powered
    I would start by checking your fuse box for a blown or missing fuse since you have a blank screen display on your trailer brake controller # 5535. Be sure to turn the ignition switch to lock beforehand. You will locate the missing or blown "Trailer E-Brake" (20A) fuse in your engine compartment sub fuse box. I found this information under the "Fuses" Section of a 2013 Honda Pilot's owners manual online. If you do not have a fuse issue, then you may have a grounding issue. Be sure to...
    view full answer...
  • Draw-Tite I-Command Flashing S.H on 2000 Dodge Durango
    If your Draw-Tite I-Command Trailer Brake Controller # 5535 is flashing S.H that means there is a short somewhere along the brake output circuit. Since this is happening without the trailer connected, the short is, of course, in the wiring along your 2000 Dodge Durango. Trace that wiring back to your connector and look for a spot that is broken, crimped or otherwise damaged. Also look at the connector on your Durango itself and make sure the wire is solidly connected and that should fix...
    view full answer...
  • How Not to Install the Draw-Tite I-Command Brake Controller
    No. The install of your Draw-Tite I-Command Trailer Brake Controller # 5535 was botched and a look at the instructions (which I've linked for you) will make that pretty clear. Among the notes in the instructions (which does include graphics displaying how the controller should be and should NOT be installed) it says, "The Brake Control must be mounted from -20 degrees nose down to 70 degrees nose up," as well as "Front of the Brake Control must be horizontal," and "The Brake Control must...
    view full answer...
    Image 1 for Image 2 for
  • Troubleshooting P.9 Display on Draw-Tite I-Command Trailer Brake Controller
    The P.9 or o.9 error message on your Draw-Tite I-Command Trailer Brake Controller # 5535 typically indicates a loss of connection to the battery ground. Check the white wire coming from the brake controller and make sure that it is securely connected to the negative terminal on your vehicle's battery. If that does not resolve the issue, check the grounds at both the vehicle side and trailer side connector, making sure they are attached to clean bare metal surfaces that are free of any...
    view full answer...
  • Does Draw-Tite I-Command Need Power to be Manually Adjusted
    The power to your trailer brakes does need to be manually adjusted with the Draw-Tite I-Command Trailer Brake Controller # 5535. The linked instructions show exactly what you need to do to adjust the power, which is as follows: 1. Connect trailer to tow vehicle. 2. With engine running hold manual full left and set Output/Gain to indicate approximately 5.0. 3. Drive tow vehicle and trailer on a dry level paved surface at 25 mph and fully apply manual control. - If trailer brakes lock...
    view full answer...
    Image 1 for
  • Draw-Tite I-Command Trailer Brake Controller 0.9 Error Code
    The fact that your old controller and the new one, # 5535, both had errors and/or were acting strangely indicates that the issue could be with either the controller wiring harness or the vehicle's wiring. What you can do is splice in a jumper ground wire to the brake controller white wire and attach the other end to a bare metal surface. Ideally you would ground it to the negative battery terminal but for this test you can attach it to a metal surface in the cab somewhere under the dash....
    view full answer...
  • Troubleshooting Brake Controller Install That Shows Connection to Trailer All the Time
    Typically when a brake controller like your Draw Tite I-Command part # 5535 shows a connection when a trailer isn't connected the problem is that there's corrosion on the trailer wiring connector which puts a small load on the circuit and tricks the controller into see a trailer. Go back to the trailer wiring connector and clean off the pins in the connector and inspect the wiring feeding into the connector and you should have your problem taken care of.
    view full answer...
  • Does an Electric Trailer Brake Controller Drain a Vehicle's Battery
    A brake controller, like the Draw-Tite I-Command, goes into a power-saving mode after being inactive for 15 minutes. It never turns completely off but is basically "asleep" and draws such little power when in this state that it would take months for the controller to drain your Durango's battery.
    view full answer...
  • Two Red Dots Showing on Draw-Tite I-Command Trailer Brake Controller
    Two dots will be displayed on the Draw-Tite I-Command Trailer Brake Controller # 5535 whenever a trailer is not connected. After 15 minutes of no motion the controller goes into power-saving mode and the display will be completely blank. So you will not need to worry about the controller draining your battery.
    view full answer...
  • Brake Controller And Universal Wire Harness For 2007 Chevrolet Avalanche With Factory 7-Way
    The Draw-Tite I-Command Brake Controller, part # 5535 is a proportional brake controller that activates your trailer brakes in direct proportion to the brakes on your tow vehicle. You do not have a brake controller harness on your 2007 Avalanche, so you will need to hardwire the harness that the brake controller plugs into. You will need part # 20127. Using this harness enable you to plug and unplug the brake controller when you want.
    view full answer...
  • Brake Controllers Will Not Activate Electric Reverse Lockout Solenoid on Boat Trailers
    A hydraulic coupler that has an electric reverse lockout does not get the signal to release the brakes from a brake controller when backing up. Brake controllers are for electric brakes and some work with electric over hydraulic systems. The I Command # 5535 only works with electric brakes. What does activate that lockout solenoid is the reverse light circuit on a vehicle. That solenoid has to be wired to the reverse light circuit on a trailer connector (usually a 5-Way or a 7-Way) so...
    view full answer...
  • Troubleshooting Low Voltage From Draw-Tite Brake Controller When Pedal Is Pressed
    You should set your tester for a higher setting like 20V so you can test up to 20 volts, but you are definitely having an issue with the reading you are getting. Your controller should be adjusted all the way up and you should be getting a much higher reading than .007 when your pedal is pressed so that sounds like an amperage reading rather than a voltage reading. You should also get a reading of 12V when the manual slide is adjusted. Many proportional brake controllers require that...
    view full answer...
  • Will Drawtite 5535 Drain Vehicle Battery When Plugged In
    Brake controllers like the Draw Tite # 5535 are all designed to use a sleep mode that allows them to keep their settings programmed so you don't need to reset the settings each time you turn on your vehicle. Disconnecting it will remove your settings. The sleep setting normally takes a few minutes after you turn the vehicle off for it to kick in and then it keeps a very minimal draw like a vehicle clock that can stay for many months at a time without draining your battery. It is awakened...
    view full answer...
  • Troubleshooting Error Codes NC and ER on Draw Tite iCommand
    The ER code on the Draw Tite brake controller part # 5535 that you referenced means the controller is inoperable at the time and the NC can mean a few things but in your situation it most likely means you have a dirty trailer wiring connector at the rear of your vehicle. Try taking sandpaper to the pins of the 7-way to clean them all off to see if that causes the error codes to go away. I also attached a help article on troubleshooting brake controller installs for you to check out as well.
    view full answer...
  • Two Dots Show On Draw-Tite I-Command After Sitting In Vehicle for Over 15 Minutes
    The Draw-Tite I-Command Trailer Brake Controller part # 5535 as you alluded to will go into a sleep mode after 15 minutes of inactivity. That said, the only way to really check this is to peek though the window to see if the display is still shown. The reason for this is that if you were to open the door to check the controller that could then wake the unit back up, making you think it has been on the whole time which is not the case.
    view full answer...
  • Brake Controller Install - 2019 Subaru Crosstrek Causing Traction Control/Hill Assist Warning Lights
    I suspect you're using the incorrect wire from the brake switch. According to the information I've found, the circuit you're wanting to tap the red brake controller wire into is a white/brown striped wire, not a solid brown. Once you tap the red controller wire into that circuit, everything should work fine for you. The wire you're looking for should show power only with the brake pedal pressed.
    view full answer...
  • Will LED Light on Display of Draw Tite I-Command part # 5535 Drain Vehicle Battery
    After about 15 minutes the Draw Tite I-Command part # 5535 goes into sleep mode which turns off the LED light that you are seeing. That said, it would take several weeks for the amperage draw of that small LED to drain a vehicle battery so even if it didn't turn off automatically you'd still be fine.
    view full answer...
  • One Dot Vs Two Dots On the Draw-Tite I-Command Trailer Brake Controller
    In regards to the Draw-Tite I-Command Trailer Brake Controller part # 5535, the controller will show a single dot while the vehicle is A) powered on, B) there is no trailer connected, and C) there are no boost settings equipped. The controller will show two dots while the vehicle is A) powered on, B) there is no trailer connected, and C) there are boost settings equipped.
    view full answer...
    Image 1 for
  • Recommended Trailer Brake Controller Settings for Travel Trailer
    The Draw-Tite I-Command Trailer Brake Controller - 1 to 4 Axles - Proportional # 5535 should have the gain set at 8 or 9 since your trailer is so large compared to the truck. I'd start there and adjust up if you need more braking for comfort. When a trailer is over 2/3 the weight of the tow vehicle we also recommend using a weight distribution system if you don't already have one. I'd also set the boost to 2 because the trailer is really close in weight to the truck. You can always...
    view full answer...
    Image 1 for
  • How Does Brake Controller Install in 2011 Chevy Silverado
    Your 2011 Chevy Silverado has brake controller wiring under the dash of the truck already but it's four blunt cut wires instead of a port that a connector can plug into. So what that means is you don't need anything else to install your controller but you'll have to do some hardwiring. I attached an install video for a similar brake controller installed on a 2011 Silverado for you to check out and see the entire process.
    view full answer...
  • Manual Override of Draw-Tite I-Command is Tripping Circuit Breaker
    So from what you described, with your lights dimming and the circuit breaker tripping from use with the manual override you have an issue with a short or insufficient ground after your install of the Draw-Tite I-Command Trailer Brake Controller # 5535. First check your ground connections, starting by verifying that the white ground wire is attached to the negative battery terminal on your Jeep. Also ensure that your 7-way is properly grounded to bare metal as this can also be the cause...
    view full answer...

< Previous
123. . .10

Do you have a question about this Trailer Brake Controller?

  • Why

    At we guarantee:
  • Highest quality trailer brake controller for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer brake controller information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Joe V
Test Fit:
Joe V
Employee Brent H
Test Fit:
Brent H
Employee Shane H
Test Fit:
Shane H
Employee Robert C
Test Fit:
Robert C
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F
Employee Ryan G
Test Fit:
Ryan G
Employee Adam E
Test Fit:
Adam E
Employee Clayton O
Test Fit:
Clayton O
Employee Bradley B
Test Fit:
Bradley B
Employee Jackie C
Expert Research:
Jackie C
Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Zack K
Video Edited:
Zack K
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Lindsey S
Edited by:
Lindsey S
Employee Kathleen M
Updated by:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Isabelle B
Updated by:
Isabelle B
Employee Cole B
Installed by:
Cole B
Employee Amanda M
Written by:
Amanda M
Employee Nick H
Video by:
Nick H
Employee Zach D
Video by:
Zach D
Employee Jonathan Y
Video by:
Jonathan Y
Employee Aidan B
Video by:
Aidan B

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.