Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
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Proportional brake controller automatically levels when mounted within a 70-degree vertical range. Includes digital display, 3 boost levels, battery protection and continuous diagnostics. Easily transfer between different automobiles.
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. Just set the initial power level, select a boost setting, and you're good to go.
As long as the Primus IQ controller is properly mounted and is pointed in the direction of travel, 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.
Aside from smoother, more efficient braking, Tekonsha's Primus IQ brake controller also offers a boost feature that gives you more initial braking power for those 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 13 percent or 25 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 Audi Q7. 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 Weight||Boost Level||Increase in Initial Power Output|
|Less than tow vehicle GVW||B1||13%|
|Equal to tow vehicle GVW||B1 or B2||13% or 25%|
|Up to 25% more than tow vehicle GVW||B2 or B3*||25%|
|Up to 40% more than tow vehicle GVW||B3*||25%|
*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.
The Primus IQ offers advanced safety features to prevent damage to various components of your towing setup. For example, when it is not in use, this brake controller will be in power-saving mode. In this setting, the power draw falls to minimize drain on your Audi Q7's battery.
When you stop at red lights, or any time that your truck and trailer are at a standstill with the brakes applied for more than 5 seconds, the Primus IQ's "hold" feature will activate. When this happens, the power output to your trailer's brakes will be reduced to just 25 percent of the preset power setting so that the brakes will not overheat.
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 is easily accessible. Pushing this slide bar engages the brakes on your trailer with full power. In addition, when you activate this override, the brake lights on your trailer will illuminate, properly warning those behind you of the braking action of your rig.
In addition to all of those safety features listed above, the Primus IQ offers diagnostics such as:
The self-leveling feature of the Primus IQ ensures that the brake controller continues to function even as you drive up steep hills or through the mountains. Simply mount it in your cab at a vertical angle that is between 0 degrees (level) and 70 degrees, and the controller will level itself automatically.
Note: The Primus IQ 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.
Installation is a snap. After mounting the Primus IQ unit in your cab using the included bracket, hardwire one end of the included pigtail harness directly into your Audi Q7. The other end plugs into the brake controller. To transfer the Primus IQ to another vehicle or to remove it for storage, just unplug the unit and snap it out of the bracket.
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 Audi Q7, and the other end plugs into the controller - no hardwiring required.
Note: If a custom brake-control wiring adapter is not available for your Audi Q7, one of the following will be required:
20-Amp circuit breaker (9506P - sold separately) for 2- to 4-brake applications
30-Amp circuit breaker (38630 - sold separately) for 6- to 8-brake applications
See also etrailer.com's exclusive 7- and 4-way brake-control installation kit (ETBC7 - sold separately) if you don't already have a 7-way plug at the back of your Audi Q7.
Video of Tekonsha Primus IQ Trailer Brake Controller - 1 to 3 Axles - Proportional
Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Today, we'll be reviewing Part Number TK90160. This is the Tekonsha Primus IQ Trailer Brake Controller for 1 to 3 axle trailers. This is a proportional braking system. The brake controller is going to activate the trailer brakes in proportion to your vehicle's braking action. It's going to automatically adjust the trailer's braking based on deceleration of the tow vehicle. It activates immediately, so theres no pausing like when using time-delayed brake systems. It also has automatic leveling ability.
It has an internal sensor that's going to detect deceleration even if your controller is not mounted flat. Now, you can position this anywhere from 0 degrees, which is level, to 70 degrees in the vertical plane. It's going to provide you with 3 Boost levels that's going to let you adjust initial braking power and aggressiveness. One of the great features about this is that it offers continuous diagnostic checks, so that way, it can alert you of any potential problems. It has an integrated safeguard system to protect your trailer and vehicle. It's also going to minimize drain on the car battery when not in use, as well as prevents the trailer brakes from overheating by reducing the power output to them during prolonged stops. This part of the brake controller right here is a easy-to-read LED display which I'll show you in a few moments.
It also has a built-in slide bar manual override. Here on the back, its going to feature a quick-disconnect feature that lets you easily remove and store the controller when not in use. Its going to come with wires, so if you have a system where you need a hard wire, you can see how easily that connects on there, but we do offer plug-in, vehicle-specific brake controller adapters. Those are sold separately. You can find those on our website.
Those can be used for certain applications to reduce installation time. Now, if a custom brake control wiring adapter is not available for your vehicle, you will need to either take into consideration a 20-amp circuit breaker or a 30-amp circuit breaker, depending on your brake application on your trailer. We do offer those on our website. The 20-amp circuit breaker is Part Number 9506P and the 30-amp circuit breaker is Part Number 38630. You can also see etrailer.com's exclusive 7 and 4-Way Brake Control Installation Kit, Part Number ETBC7. That is sold separately if you dont already have a 7-way plug at the back of your vehicle. This is designed for trailers with up to 3 axles, which is 6 brake assemblies.
It's designed for use with electric brakes only, so keep that in mind. Go over the dimensions real quick. Overall width is going to give us a measurement of about 3.5 inches, and this is without any of our brackets installed. Overall length is going to measure right at 5 inches, and then the overall height is going to measure about 1.25 inches. It does come with a mounting bracket, this one right here, simply just slides over the controller. It snaps into position. This one goes underneath your dash. You can mount that. It has numerous mounting options. As you can see there as well, it has a tilt feature. All the hardware that you need to get this on mounted up is provided. We're going to take our external power here and were going to hook up our brake control system. That way, you can see the brightness and the functions of the LED. Once we have our connections made, you'll see the LED display come on. There we go. We have our manual bar override here. We can also adjust that level, simply using the thumb dial there. We also have the boost setting button. It offers our different settings. Its a really nice little system. That's going to do it for today's review of Part Number TK90160. This is the Tekonsha Primus IQ Trailer Brake Controller. .
Average Customer Rating: 4.8 out of 5 stars (205 Customer Reviews)Proportional brake controller automatically levels when mounted within a 70-degree vertical range. Includes digital display, 3 boost levels, battery protection and continuous diagnostics. Easily transfer between different automobiles.
by: Jim H.06/11/2014
Shipping was great. Stared at it for a couple of days before unpacking. The trailer connector mounting was easy with the holes almost matching the existing holes on my 2013 Toyota Highlander. The first four wires are a snap, they are just plugged into the existing four pin connector. I routed the two wire cable towards the front using ty wraps and improvised L brackets fixed to existing chassis screws. I mounted the Circuit Breakers on the inside of the left fender making sure there was hood clearance (see photo). Then I hit a snag. There was no easy way to get the brake and 12V power wire to the brake controller inside the car. For grins, I goggled "brake controller video" for my car and came up with a video made by "eTrailer." (Thank you eTrailer) Three things from the video helped me: wire access from inside the car through the firewall, a place to mount the controller and how to locate the brake wire. After the installation I had 18" of two wire cable left over. The install took me about six hours. (I'm 71 and I took my time.) A couple days later I connected the trailer for a test ride. The brake controller worked like a dream. Things I liked: Retaining the four wire trailer plug setup next to the seven wire trailer plug. Controller display works but you don't have to look at it. The two wire cable was adequate for the job. Being an Engineer (retired) I worry about things like that. Thing I didn't like: The mounting plate for the trailer plug is a little weak. A stiffer plate would have been better suited for me. and, oh yeh, somebody else to install it. ;=) 135250
THANKS for the Brake Controller unit from ETrailer. It arrived w/in 5 days from your MO location to my So CAL residence. Even as an Engineer/Scientist from the Delta IV rocket program and no experience with brake controllers, I was able to install this unit by myself. Your continued (live human) support and online video clips proved to be the key elements to this installation...without my symbolic pocket protector. I have attached a few images of the unit, mounted to the fuse-panel cover (3/16 attachments with locking hex nuts) in a 2006 Toyota 4Runner SR5 (with factory tow package). The placement of the unit onto the panel cover allows a new panel cover (no holes drilled) to be used when it is time to sell the vehicle. 85308
Installed quickly an easily into my 2009 GMC Sierra 2500HD by wiring up to the factory harness. Be sure to watch the etrailer.com video to see which wires need connected at the fuse box in the engine compartment! (Easy hook-ups, just need to make sure you see which ones get hooked up and where.) And if you don't use your ash tray, these brake controllers squeeze nicely into the ash tray compartment/recess in the lower part of the dash. Makes a great place to keep most of the controller out of the way and it's easy to install (you will have to create 2x new holes in the plastic detachable controller mounting bracket but its very easy - you can see the mounting screws in the 'new' holes and the old holes go unused as shown in the photo). Only had a trailer hooked up once, but the controller functioned as designed. I think the 'Boost' function will come in handy if I use a well-loaded trailer and need some additional stopping power from the trailer. 135875
by: A happy, new farmer09/04/2013
I installed this on my 1997 Chevy K1500 pickup to pull my farm trailer, Kubota tractor, and it's implements (total of about 5500#s). I bought my truck new in 1997 with the towing package. eTrailer had a number of links related to the installation, but the most helpful was the one that identified the blue brake and orange power wires that, in my case, were preinstalled at the factory. That made the job significantly easier. What I thought would be the most challenging part of the install turned out to be simple, but only because of pure, dumb luck. Because I had installed aftermarket security and stereo systems shortly after I bought the truck, there was no way to identify/compare the pictures/discussions to identify the hot brake wire under the dash near the brake (other than that it was likely a white or gray wire). The circuit tester (purchased with my order from eTrailer) turned out to be a godsend. Unbelievably, the first white wire I tested turned out to be the hot brake wire! I was very lucky to hit the correct wire on the first try. The first time I hooked up to my trailer, the system worked flawlessly... exactly as the instructions described. And the performance is excellent. Note: I double/triple checked connections as I worked. I highly recommend doing this. Hunting down electrical connection malfunctions is not something you want to do. Overall, I'm VERY happy with my purchase and the support from eTrailer. I highly recommend this product and eTrailer. 98210
by: Howard H09/04/2014
Just wanted to follow up with you. I have an old 2004 tundra. I got rid of a 3 year old 3500 Chevy and got in that 04 tundra. I have had a goose neck hitch and pull a 24 ft. With a dove tail, 3 beam trailer with that tundra. I have always had e-brakes, but had a used controller which I had wires spliced into place for the controller. I pulled that trailer for 10 years with that tundra and never really felt comfortable with the e-braking system. I kept that tundra kicked in the ass for 10 years with the loads I pull and was always on caution due to my lack of confidence in the braking system of that setup. We'll, I bought your controller and factory ready quick connect wiring harnesses for my make and truck model. We'll let me tell you that I have never felt so confident pulling a trailer in my life as I do now with the flexibility and control I have on my E-braking system now. I'm still up in arms on deciding wether this is better advertisement for you and the breaking system with the quick connect wiring harness, or better advertisement for the 10 year old tundra that I have always had and continue to kick in the ass with loads that onlookers shake their heads at when they view the work that my 10 year old truck and e-breaking system handles. This new e-breaking system allows me to have the confidence that I can control the velocity of the load I'm hauling with ease. Thank you. 150117
Pictures of the install. Approximately a 20 min job. First picture my finger is pointing to the factory plug with the etrailer supplied harness plugged in. Note the harness did not specify that the white common with the ring terminal should be connected to ground. But then again that SHOULD be obvious. I will be towing this weekend so I will rate the product then. One minor gripe is that there is always power to the unit which is a battery drain (as evidenced with the key out of the ignition and the unit stayed on) Not sure as to the impact but the controller can always be unplugged or removed. Sorry for the dirty floor mats in the photos. 115201
The Tekonsha Primus IQ controller is a well made compact unit that is perfect for my FJ. The ETBT7 wiring kit has all you need to go from 4 to 7 pin connectors. I was worried about how to remount the 4 pin, but the new 7 pin has a 4 built in it. It is a very clean install. The kit had everything needed to install, including a test light. The Tekonshcontroller and the wiring kit are high quality and have complete easy instructions, and had everything needed for the install. Etrailer didn't have the ETBT7 in stock when I ordered and I paid for expedited shipping. They followed up with emails and calls to inform me what was happening, and offered to refund the shipping fee. I told them just expedite it when it came in and they did, got to me in two days. I recommend trailer highly, they kept me informed, were prompt, friendly, and concerned, and paid attention to detail. If only other companies followed their example... Excellent prices, Great product line, great company, great staff. I will use them for all my trailer needs. I Recommend them highly. 130304
by: Mike R04/02/2013
I had one of these before and it worked well. Etrailer had a great price on it and when I needed to put one on a different vehicle I bought from them. I couldn't be happier. 73894
by: Stanley L.05/01/2013
I purchased the Tekonsha Primus IQ Trailer Brake Controller and the wiring kit for my Toyota 4Runner. It was simple installation and the customer service was EXCELLENT! They sent me extra schematics I needed by email and was very supportive! I will definately do business with them in the future. 78575
by: Pam G.06/12/2013
I chose this device based on my trailer repairman's brand recommendation. He usually has them in stock but was out. I got mine before his order came in. He also did not have a wiring harness for my vehicle so I ordered that, too. This is the first time I've ordered anything significant that I knew virtually nothing about. From the descriptions and pictures on the etrailer site it was easy to look up what I needed. I also read on the site about time control vs proportional and then knew the proportional would be good for me. I have a new camping trailer that has electric brakes; need the controller to operate the trailer brakes. The product quality of the brake controller appears very good. The wiring kit is quite substantial. My mechanic will wire up for me this week end and I'll have his opinion then. I am very satisfied with the speed of the delivery and the quality of the products. thank you 84360
by: Sam S.10/09/2013
Like other reviewers the biggest challenge was getting the cover plate removed (and replaced) to access the factory connection. The connection was at the very top of the wiring bundle and I was able to cut about 1/2" of the tape holding the bundle together very near the connection to gain access without removing or cutting all of the tape. The ground terminal was easily accessed and the installation was quick and mostly painless. The instructions to set the braking level was spot on. I have a Sequoia with a knee airbag and tire pressure monitoring. I place the controller with the open back of the bracket allowing access to reset the tire pressure monitoring switch. 103222
by: Al Rey12/11/2014
I received this brake controller and the cable designed for connection to my 1995 F150 truck within the time I was told. I hooked them up and I was ready to tow my trailer. It seems to work well, but I will not know until I take the RV trailer out for a run, soon. Thanks for the great service. Also, This was the second brake controller I tried. The first was a Curt brake controller and failed to work properly, so Katie of etrailer helped me pick out another brake controller (this Tekonsha Primus model). Installing the wiring and 7-pin connector was another story. Careful placing your order, if you make an error you will be responsible for return shipping. better to call in your order and verify that the parts you are ordering are correct for your vehicle. 164341
by: Alan B01/08/2014
Purchased the Tekonsa Primus IQ controller with wiring adapter for my Dodge Ram. Shipment arrived quickly and was exactly what I needed. Installation was a piece of cake. Cut an opening in the plastic stock dash location. Plugged the adapter into the Dodge plug under the dash and into the Primus. Worked perfectly. No fuss. Installed in about 10 minutes which included the time to cut the opening.. Picture will be poster... I was so happy with the service from etrailers that I ordered the Blue Ox Swaypro hitch. Thanks ETrailer.com! 112238
by: Ray B of Colo.11/18/2013
I purchased a Primus IQ from our local NAPA dealer and had already installed it in one of our Dodge trucks before I learned about Etrailer. Needless to say it cost a bit more than the one I ordered from Etrailer a couple weeks later. you cant return electrical products once installed. I received the one from Etrailer in a very timely manner. I was hoping it wasn't a #2 for it being so much cheaper, but it is just fine and installation was no problem because I already had Tenkonsha Voygers so just chop the wire and install new control unit. We have two trucks and pull various trailers, so am real happy with product and will further order trailer items from ETRAILER.COM. Thank you, just Ray 107693
by: Erik N.05/19/2013
I bought this product after reading several reviews. I recently purchased a Fun Finder 189FBS Travel trailer, and I needed a Brake Controller that was proportionally controlled. After my first trip with my 2012 Rubicon/ Fun Finder; I am very pleased with my purchase. This controller works best for my setup, on the "b1" boost level. Setup and installation took less than 2 hours, and I did it myself. The instructions and reference video from etrailer.com were very helpful. I was quoted nearly $400 to install this controller from my local RV shop. I bought it hear, spent 2 hours, and saved $250. If you can crimp a wire, and run a drill- You can do this! 80929
by: Brent B04/07/2014
This product plugged right in and worked perfectly as it should. I like the different boost levels as a quick adjustment between loaded and unloaded trailers. No messing with the gain controller to keep the tires from sliding. The special dodge plug made install a breeze and less than 5 minutes. Much better than splicing into wires. Plus eliminates the need to hunt for the correct wires. This controller works off of inertia so as it senses your truck braking it applies equal braking to the trailer eliminating the jerk experienced from other controllers. Shipping from etrailer was quick as well. Great overall product at a reasonable price. 124031
by: Kevin G.09/11/2012
Product works great, as advertised. The Tech at the RV dealer commented on the reliability of this brake controller, and the install literally took 15 minutes, start to finish. The supplied factory wiring harness made quick, simple work of the installation. The video on the etrailer website is right on the money as well. I have dealt with etrailer for all my towing needs since 1995, and they have never let me down. Great, quality products......quick delivery, and customer service that is second to none. There is no reason to shop anywhere else. Thanks etrailer.......you are the best! 54172
I ordered mine with the wiring harness for toyo and Lexus. Everything plugged in nicely and fit perfectly in a Toyota Sequoia under the steering column on the right side. The only suggestions is the that the factory wiring harness in the sequoia has absolutely no slack, so it you order this with an adapter for this make and model, it is a little to short to run it to where I have it. I really had to work to get it mounted. If it had a longer run by about 6 inches it would have been a piece of cake. I still gave it an excellent rating because other than that it was a 5 minute install. 116521
by: Doug M.10/05/2012
While I have not had the chance to use it yet pulling my trailer I picked this particular unit because of the reviews it has received from people that have and are using it. I had it professionally installed and it is working as the instructions say it should. The company that installed it had nothing but good things to say about it as well. I especially want to thank Nicole for her help and customer service she provided to me and I can promise you that all my future trailer needs will be purchased from your company via Nicole. Big Thanks to all of you. 56414
Great controler for the price. Easily mounted and set up using the vehicle specific harness. Installed in a 2003 Toyota Sequoia just under the key in the flat of the center cover. Perfect for the 0 - 70 deg mounting location required by this controler. Setup and operation just as was stated in user manuals. eTrailer was great as well, everything came together and on time. 84801
I am unable to correctly rate this product at this time because there is no Dodge 2013 harness with which I can attach it. If/when the harness becomes available (a year plus after the truck came out, of course), I will re-review the product. Note that lack of this harness is NOT the fault of eTrailer, but if you're purchasing this for a 2013 Dodge truck, you might want to wait. 73972
by: Todd G07/03/2012
Plug and play is a true definition. My family was bugging me to go boating this last weekend and being the procrastinator that I am I had not yet installed a brake contoller on my 2011 Ram yet. Got the controller and Harness in the mail on Saturday after only 3 days since order was placed. The install took 10 minutes max including the bracket install and away we went to the River. Thanks etrailer!!!!! Would have never heard the end of it from my 14 year old daughter if we would not have made it boating!!!!! 46597
by: chris c.07/25/2013
I have had a few different trucks in the past, all with brake controllers, some factory some not. So when picking one for my truck, I wanted something with as few a knobs, dials, etc as possible. I looked around on the internet and found the Primus, it was the middle of the road as far as sophistication and basic. It was shipped promptly and arrived within a few days. The installation was easy with great instructions. Would recommend to anyone who wants ease of operation without spending a fortune to get it. 91572
by: John D12/10/2013
The tekonsha controller was easy to install with the help of the instructions, (very well written), and the video, specific to my 2006 Dodge Ram. Set up was also quick as I dialed the power setting to 7, and have just the right amount of braking for my empty trailer. When I loaded trailer for the first time, I adjusted the boost level to the b1 position and that was all that I need to do to have the safety of well adjusted trailer brakes at finger tip control. Very pleased with this pur hase. 109795
by: Al R.07/17/2014
I was very pleased with the installation. I had a dealer tell me it would take about three hours, which I knew was a stretch, to install a brake controller on my 2009 Dodge Ram. Including opening the package and looking at the installation procedures, it took me fifteen minutes to install. I had looked at the on line information that was provided befor purchasing the brake controller. It was a great experience. I have not had a chance to see how it works, but I am sure it will be fine. 141743
by: William B.07/24/2013
This item was in stock and shipped the same day. It arrived undamaged and the installation took about 15 minutes thanks to the wiring adapter that let me directly connect this unit to my 2007 Mercury Mountaineer. Hard to image that it could be easier than this. 91296
by: Al Tahoe11/30/2013
This is my third Tekonsha brake controller and the quality is excellent. I've got to say that your installation video saved me a lot of grief. I spent about 20 minutes trying to find the factory connector under the dash without success. The video showed me exactly where it was hidden. Without your help, I'd still be looking!! Your salespeople were helpful, too. Anything else I need for my trailer I'll be using you- and recommending you too. 108744
by: Byron D08/22/2014
Excellent service, one stop shopping on web, you guys had everything that I needed in one place. After the order was place I was notified that shipping would be expedited at no charge, I placed order on Thursday and received all products on Tuesday. I also received several follow up emails from the company to make sure everything arrived and I had no further questions or problems. I Could not ask for a better experience or a better company. 148040
by: Andy K.04/02/2012
I cannot rate the Primus IQ controller yet as I have just received it.However, the instructions/disk are very clear and straight forward. What I can comment on is eTrailer.com. I don't think I have ever seen an online retailer with better customer service and online support (videos showing step by step installation instructions for almost every specific model truck) It took a real effort on eTrailer's part to provide this. Great job! 35943
by: Roy F01/08/2014
The product was exactly as advertised, arrived very promptly, and I installed it myself in just minutes with the prewired harness for my 2007 Dodge 2500. I have not had the chance to hook up the trailer to set up and gauge the actual performance of the Primus IQ controller, but I don't expect any difficulties. I will definitely use etrailer again. For an actual performance review, you will have to wait a bit. Many thanks... 112245
by: Bob R.03/10/2014
Have not had a chance to road test yet but with the help of the videos and tech support, I had it installed in less than 30 minutes. Most of that was deciding where to mount it. Plugged in trailer and all information appeared in the window as described. Will have to review road test at a later date. etrailer expedited delivery which was very much appreciated and shows they aim to please in any way they can ....thxs guys!! 120080
by: Scott S09/20/2012
Works very well in my 2012 Tundra. Worked first time. 55282
by: Steven M04/01/2014
Recieved the product and it was very well packaged. Very easy installation with the wiring harness that I purchased with the controller. I highly recommend that. Followed the simple instructions inside and took it to the road. Went to Martinsville with our camper for race weekend and the brake controller worked awesome. I like the boost capability. It makes a difference if you have a lighter tow vehicle for sure. 123137
by: Brandon W08/03/2013
Great product so far. I'm a novice at towing and I got this controller in the mail 2 days before I bought my first camper ever. I found a video on YouTube that gave me step by step instructions on installing. I did it myself and hooked up to my camper for the first time. Worked perfectly. Also shipping was faster that I expected. Etrailer had the best price out of everyone for it. Glad I bought this one. 93130
I purchased the Primus brake controller after recently buying a 20 ft car hauler. The controller was a must due to the weight of the trailer and its cargo. The controller works great and the adjustment roller and turbo boost are fantastic and easily accessed. The installation only takes about 30 minutes too. Thanks Primus for a great product and thanks e-trailer for getting the product out to me so quickly. 63657
by: Richard M.05/12/2014
The Tekonsha Primus IQ Trailer brake Controller is exactly as listed, but the best part is all the great customer service from etrailer.com Orders are processed quickly and their videos are very helpful for installation! Allow a little extra shipping time for regular shipping and you will be good to go. ETRAILER is a great company to do business with and no they didn't pay me to write this! 130224
by: D. Adams06/17/2013
Shipping was fast, and the controller was offered at a great price. Saved some money and avoided issues by installing it myself. If there is something else I need, I'll check etrailer first, 84900
by: Dave R.09/17/2014
Really easy install on my 2012 GMC Sierra 1500. I have not used it with a trailer yet since I am picking it up tomorrow, but no issues expected. It is odd that it is always on, after a few web searches, it appears this is normal, I just didn't expect it to be on all the time. Great value for a proportional controller, don't be afraid of the install, its only 4 wires. 151741
Installation was very easy, went into a 2014 Suburban with the tow package. Just 4 wires to splice in the cabin and attach the bracket to the dash. Then 2 wires under the hood for factory connections to power the unit. Took maybe a half hour ,start to finish. Have not had a chance to tow the trailer yet, buried in a snow bank, but expect it to work well. 112779
I wire this up on my 2004 chevy colorado, mostly to pull my 5x10 7000 GVWR dump trailer. Got the wiring kit from etrailer as well and it was pretty simple to install with the diagram and directions they sent. Just make sure to ground your circuit breakers well. I'm very happy with the whole set up. I can hardly feel the trailer behind me when i break. 70015
by: Roger B10/14/2013
Good installation instructions for my 2014 Acura MDX equipped with trailer package. It already had a wired pigtail with an snap in attachment under the dash, so soldering and insulating the 4 wires was a snap. Delivery was within 6 days and the install took about 45 min. Haven't hooked either of the trailers yet but will give followup when used. 103810
by: G Lewis11/03/2011
Install was very easy in my 2008 Chevy Silverado. Haven't purchased the trailer yet so I can't rate its operation, but I'm sure it will work just fine. A bit of advice for others installing this or any brake controller in a 2008 Silverado...the truck's light blue/white stripe wire had faded with age to a pale green. Don't let that confuse you. 26493
by: Jon M10/08/2012
This product was extremely easy to install - with multiple options. The only thing missing was the electrical connectors, but I'm not sure if they were supposed to be a part of the package or not. I really like the fact that I can snap the controller in or out of the vehicle. The product also performed great the first time out. 56775
by: Craig R09/05/2014
Installation was a snap in my 2007 Dodge Ram with the model specific wire harness. I watched the video for the 2009 to find what was suggested for mounting and where to find the truck connector to plug into. Pulled our new trailer home last night. The controller worked well right out of the box with only a minor adjustment. 150197
What can I say? After watching etrailer.com video on installation of the unit, I installed myself with corresponding harness in less than an hour. Worked as suggested and got a better controller for less money than my local camper place was going to charge me to install their unit. Made me a believer on etrailer.com for sure! 89547
I just installed the Tekonsha Primus IQ controller and used the plug adapter 3035P to hook into my wiring harness on my 2013 Itasca Sunstar 26 HE. The chassis is a Ford F53 with a V10 motor, in case some one needs any reference to hooking into their motorhome wiring. Its was installed quicker than making my coffee! 124540
by: Chris Rutherford08/11/2014
This product is a great product, it installed easily, although it took a phone call to the customer help line to figure out the mounting bracket installation, once that was cleared up, I had it installed and operating in about 20 minutes. I was totally satisfied with the product and customer care response. 145808
Ordering this product was easy and delivery was fast. etrailer.com was very helpful in choosing the right brake controller for my car. I installed the brake controller myself taking about 5 minutes. I purchased the brake controller to use for pulling my 27 ft tag along camper. It works great. 138217
by: Doug V.08/07/2012
Purchased electric brake controller for our 2000 Toyota Tundra as we are pulling a large camper. Very easy to install and adjust for camper weight using boost feature. Very happy with Primus and with etrailer as they got the controller to us a day ahead of delivery date. 50918
by: David P.11/02/2012
Product was a breeze to install. So impressed with ETrailers that have won my repeate business. Super fast shipping. It was shipped the same evening we placed the order and actually arrived a day ealier than scheduled. Only used the controller once but so far so good. 58674
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