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  1. Trailer Brake Controller
  2. CURT
  3. Electric
  4. Electric over Hydraulic
  5. Proportional Controller
  6. Up to 4 Axles
THIS ITEM IS NOT A FIT FOR
2016 Thor ACE Motorhome
CURT

Curt Spectrum Brake Controller w/Universal Harness - Dash Mounted Knob - 1 to 4 Axles - Proportional

Part Number: C72RV
In Stock
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$259.95
Trailer Brake Controller
Not Confirmed to Fit

2016 Thor ACE Motorhome

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Product Images

In Use/Installed

Stick the control knob to the dashboard, plug in the module, and the brake controller installation is done with no drilling. Large knob is easy to use and the main unit is out of sight behind the dash. Included universal harness installs easily. Great Prices for the best trailer brake controller from CURT. Curt Spectrum Brake Controller w/Universal Harness - Dash Mounted Knob - 1 to 4 Axles - Proportional part number C72RV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (409)
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CURT Trailer Brake Controller - C72RV

  • Electric
  • Electric over Hydraulic
  • Proportional Controller
  • Up to 4 Axles
  • CURT
  • Behind-Dash
  • Plug-In
  • Dash-Mounted Knob
  • Multiple Trailers
  • Indicator Lights

Stick the control knob to the dashboard, plug in the module, and the brake controller installation is done with no drilling. Large knob is easy to use and the main unit is out of sight behind the dash. Included universal harness installs easily.


Features:

  • Proportional braking - Smooth, safe, and good for your brakes long-term
  • Fingertip control
    • Adjust braking output and sensitivity by turning the dial
    • Push the button to activate manual override
    • Troubleshoot with colored LED indicators
  • No-drill installation - Knob adheres to dash, main unit installs behind it
  • Universal harness - Hardwires to your vehicle and plugs into unit
  • Assembled in the USA


Specs:

  • Application: trailers with up to 4 axles (8 brake assemblies)
    • Compatible with electric or electric-over-hydraulic trailer brakes
    • Compatible with ABS brakes, cruise control, low-voltage wiring, multiplex wiring, and PWM systems
  • Main unit dimensions: 3" long x 3-1/2" wide x 7/8" tall
  • Control knob dimensions:
    • Extension: 1-1/2"
    • Diameter: 1-3/4"
  • Cable length: 4'
  • Warranty:
    • Limited lifetime on brake controller
    • Limited 1-year on wiring harness


How Does the Curt Spectrum Work?

The Spectrum puts control of your trailer's brakes at your fingertips and, with bright LED indicators, you know what your brake controller is doing at a glance.


Curt Spectrum Dash-Mounted Knob

You can adjust all of your settings using the control knob. To switch between modes, press the control button in the center of the knob. Each mode has its own distinct LED display with several different colors and patterns to eliminate any guesswork as you cycle through.


Curt Spectrum LED diagnostics

Output: Braking output is the maximum amount of power that will be applied to your trailer's brakes. How much braking output you need is determined by the weight of your trailer; a heavier trailer will need more power to bring it to a stop. You want to go as high as you can without the trailer brakes locking up.


Sensitivity: This controls the aggressiveness of your trailer's braking, meaning how quickly the brakes reach the set output level. This is a great adjustment to make when you're towing a heavy load and the trailer will need more umph to bring it to a stop so it doesn't push your vehicle forward. If your vehicle takes too long to come to a stop, increase the setting. If it stops too abruptly, lower the setting. You may also need to adjust the sensitivity based on your own preferences, or when the trailer load or road conditions change.


Manual Override: The manual override activates just the brakes of your trailer, great for stopping sway or controlling its momentum in an emergency. To engage the manual override, press and hold the button on the control knob.


Curt Spectrum review

No-Drill Installation

The Curt Spectrum comes in 2 pieces: the main unit and the control knob. Because the only part that you need to be able to access is the control knob, the main unit can be mounted out of sight and out of the way. You don't have to worry about banging your knee on a bulky brake controller or interfering with your vehicle's lower airbags.


Curt Spectrum Dash Knob

The dash-mounted control knob can be installed in any convenient spot that's easy for you to see and reach. This can be a blank switch panel, an open spot on your center console, or wherever there's space on your dashboard. The knob sits flush against the dash, so you don't have to worry about finding enough clearance behind the dash. You can use either the included screw to mount the knob, or the adhesive pad for a drill-free installation.


Once you've decided where you want to put the control knob, you'll need to find a good place to install the main unit. Your only restriction is the 4' plug-in cable that has to be able to reach between the main unit and the control knob. Thanks to the 3-axis accelerometer, the main unit can be positioned at any angle or position. No matter how you install it, the unit will sense the direction of travel and its orientation.


The included pigtail harness splices into your vehicle's wiring beneath your dash to provide an easy-to-access plug for the main unit.


Note: If you don't already have a 7-way plug at the back of your vehicle, take a look at our exclusive 7- and 4-way brake controller installation kit (ETBC7 - sold separately).


What is Proportional Braking?

What is proportional Braking

Proportional braking means that your trailer brakes mimic your tow vehicle's brakes. If you slam on the brakes in your vehicle, your trailer brakes will activate with the same intensity; if you brake lightly, your trailer brakes lightly too. The trailer's braking is in proportion to your vehicle's braking. This saves wear and tear on the tires and the brakes on both your vehicle and trailer.


The Spectrum uses an internal 3-axis accelerometer to sense how your vehicle is braking so it can send the right amount of braking power to your trailer. It measures the inertia of your tow vehicle and activates the trailer's brakes to ensure that your trailer slows at the same rate. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.



51170 Curt Spectrum Trailer Brake Controller - Dash Mounted Knob - Proportional - 1 to 4 Axles

51515 Curt Universal Quick Plug Brake Control Adaptor Harness with Pigtail

Installation Details C72RV Installation instructions


California residents: click here


Ratings & Reviews

4.6

409 reviews
Stick the control knob to the dashboard, plug in the module, and the brake controller installation is done with no drilling. Large knob is easy to use and the main unit is out of sight behind the dash. Included universal harness installs easily.

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See what our Experts say about this CURT Trailer Brake Controller

  • Troubleshooting Installation of Curt Spectrum Brake Controller on 2011 Toyota Sienna
    The calibration process of the Curt Spectrum # C51170 should only happen after initial installation and should be run before you plug in the trailer to your tow vehicle. You should have seen the green lights on the knob light up in a clockwise motion 7 times, which indicates the calibration is occurring. If you've gone through this process and the error occurred, then the lights on the knob can tell you a bit about what's potentially going on. If you're seeing all red lights that would...
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  • How Does Brake Controller Unplug from Vehicle to Prevent Battery Draw
    Hey Joe, while I don't know what brake controller you have you should be able to unplug it from the back of the brake controller and that would accomplish what you are wanting. What brake controller do you have?
    view full answer...
  • Troubleshooting Curt Spectrum Brake Controller - No Lights On Control Knob
    The Curt Spectrum Brake Controller # C51170 should illuminate, even if the trailer is not connected. If you are getting no lights at all, this likely means the control unit is mis wired, or there is contamination in the trailer plug socket. We recommend double checking your wiring and making sure everything is done correctly. Also clean and dry your trailer plug. I have included Curts troubleshooting guide below.
    view full answer...
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  • What Lights On Curt Spectrum Are Supposed to Activate When Pressing Brake Pedal and No Trailer?
    I have added a link near the bottom of this page with the instructions for the Curt Spectrum Trailer Brake Controller # C51170. When not connected to a trailer and pressing on the brakes you should see 2 blue lights flash on each side of the control knob. If you can tell me what you are seeing I can help you to determine what fault you may be having.
    view full answer...
  • Troubleshooting No Power To A Curt Spectrum Brake Controller In A 2022 Chevy Silverado 1500
    Hi Adam, Since you used the Curt Custom Wiring Adapter for Trailer Brake Controllers # C51525 to install the Curt Spectrum Trailer Brake Controller # C51170 you likely have either a blown trailer brake fuse or they just never installed one to begin with. The trailer brake fuse should be number 84 in the engine compartment fuse block. I recommend checking it and seeing if you're getting power or if you just need to add in a fuse to get power to the brake controller.
    view full answer...
  • What Colors Will Curt Spectrum Brake Controller Light Up with Brake Pedal Pressed
    The Curt Spectrum # C51170 will light up from green to red (with the trailer connected) depending on what power setting you chose. This will be the case whether you are parked or heading down the road. I confirmed this with my contact at Curt. I've also attached a photo showing what the display will look like as well as a review video you can check out.
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  • Troubleshooting a Curt Spectrum That Does not Go Through Calibration Sequence
    There could be a couple of reasons why your Curt Spectrum # C51170 is not calibrating, but it's likely due to your wiring. Even though you're using a plug in adapter # C51523, there still can be an issue with your vehicle wiring. I recommend physically checking your grounds, to make sure that it's to a clean secure surface. If your grounds are good, then check the white and black wires on the main module and make sure they're not flipped; If they are flip them and check again. I also...
    view full answer...
  • Curt Brake Controller Plug for a 2020 Ford Explorer
    Yes, the Curt Custom Wiring Adapter for Trailer Brake Controllers part # C51322 will allow you to use a Curt brake controller like the Curt Spectrum Trailer Brake Controller part # C51170 on a 2020 Ford Explorer (All Models). I checked with Curt just to confirm that the Curt Custom Wiring Adapter for Trailer Brake Controllers is indeed correct for a 2020 Ford Explorer so you can be confident this is the correct harness. The plug will be located under the driver dash, near the center console...
    view full answer...
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  • Single Red LED Lights Up When Brakes Pressed on Curt Spectrum Trailer Brake Controller
    What you have is in fact the Curt Spectrum Trailer Brake Controller # C51170. The single red light means it is working properly. More lights will light up as more brake power is asserted. This all depends on the settings of the brake controller. If you haven't changed any settings yet I recommend starting on page 11 of the manual to get it properly setup and adjusted. I have attached the link to the instructions below.
    view full answer...
  • Curt Echo Operation With Panic/Emergency Stop Situation
    The Curt Echo Wireless Brake Controller # C51180 works well in a panic stop/emergency situation. The mobile app has an orange button that you press and hold for that feature. I've attached a video to assist. It works as well as any other controller as long as you have that Bluetooth connection. If you want a brake controller that has the physical button, then I recommend the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR which is a customer favorite because it can be fit...
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  • Recommended Brake Controller for a 2018 Thor Ace Motorhome
    For your 2018 Thor Ace Motorhome, I recommend using the Curt Spectrum Trailer Brake Controller part # C51170. The reason for this is because this unit is composed of two main parts, the control box and the output knob. The control box gets mounted out of site and then the output knob will get installed up on your dash for easy use and a very aesthetically pleasing look. The color output of the knob also helps with ease of use. Since your motorhome is on a Ford F-53 chassis, you can use...
    view full answer...
  • Is Curt Spectrum Compatible With Demco Stay-IN-Play Duo Braking System
    The Demco Stay-IN-Play Duo Braking System # DM86VR is a standalone system so no brake controller is required. The same is true for our other supplemental braking systems for flat towing. The Stay-IN-Play senses the rate of your RV's deceleration and triggers your towed car's brakes to slow down at the same rate just like a proportional brake controller. The Curt Spectrum # C51170 is only designed to work with trailer brakes.
    view full answer...
  • Troubleshooting Red Light On Curt Spectrum With Trailer Brakes Not Working On a 2014 Toyota Tacoma
    The first place I would start is with the Curt Custom Wiring Adapter # C51362 that you have connected between the Curt Spectrum Trailer Brake Controller # C51170 and your 2014 Toyota Tacoma. The red light that you are getting when the brakes are pressed indicates that the red wire that connects to the brake switch is either connected to the ground side of the switch or there is a short to ground. I do believe that you have a ground wire issue. The Tekonsha Plug-In Wiring Adapter 3040-P...
    view full answer...
  • Comparing the Curt Spectrum Brake Controller to Redarc Tow-Pro Elite
    By all accounts the Curt Spectrum Trailer Brake Controller # C51170 works well and is easy to use and install on most vehicles. It is a brand new item so not a lot of feedback has come in on it. I did learn a few things though after speaking with our install team about this controller. First, compared to the Redarc controller # RED44FR, the Curt Spectrum is easier to install. It can be surface mounted meaning that drilling is not necessarily required (depends on how you run the wiring)....
    view full answer...
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  • Where is Brake Controller Adapter Plug Located In 2002 Dodge Ram Pickup
    The green connector in your truck is not the correct plug. It is normally a blue plug like what I have shown in the photo that plugs into the adapter part # C51332 if you are using a Curt brake controller like part # C51170. There will be a port to plug into if the truck came with a factory 7-way plug just to the right of the emergency brake. If the 7-way plug was installed after-market, you will need to see how far the wires from the plug are extended so you can complete the install...
    view full answer...
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  • Recommended Brake Controller for 2018 Nissan Titan With Factory 7-Way
    For your 2018 Nissan Titan I very strongly recommend going with the Redarc Tow-Pro Elite item # RED44FR over the Curt Spectrum item # C51170, which does use Wiring Adapter item # C51382 to connect to your 2018 Nissan Titan. The Redarc Tow-Pro item # RED44FR, which you can install in your '18 Titan with Wiring Adapter item # 3050-S, is by far the superior option because it is not only extremely effective and responsive but its manual control knob makes it simple to use; the Tow-Pro can...
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  • Is 3.6V on 2020 Jeep Wrangler Unlimited Trailer Plug Abnormal
    If it's just a 4-Way Flat connector like the T-On # 118786 then I would be surprised to see that much power being pulled to the back of your 2020 Jeep Wrangler Unlimited, but if you have a 7-Way like what we find with the Wiring Kit # ETBC7 then 3.6V on the 12V power pin isn't out of the ordinary and you'll be fine. Attached are photos showing the functions per pin on both a 4-Way and a 7-Way connector for you to reference.
    view full answer...
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  • Troubleshooting Curt Spectrum Output and Sensitivity Adjustment
    It sounds like the sensitivity needs to be adjusted on your Curt Spectrum # C51170 since it is too aggressive leading to the jumpy stop. To adjust the output and sensitivity you want to follow the instructions. This means you only make adjustments while stopped, with the transmission in park or neutral, parking brake applied, foot off the brake pedal, and no manual control actuation. Adjust the sensitivity by pressing the rotary knob until the brake control is in the sensitivity control...
    view full answer...
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  • What Should Display of Curt Spectrum Show When Not Connected to Trailer
    Hey Paul, with the Curt Spectrum part # C51170 you should have blue lights on the sides of the display flashing when a trailer isn't connected and then the same lights go solid when the brakes are applied.
    view full answer...
  • Curt Spectrum - What Do Two Flashing Blue Lights Mean?
    Hello Trent, thanks for getting in touch. The two blue lights on the Curt Spectrum # C51170 knob mean the trailer is disconnected. The lights should flash blue when the trailer is disconnected or they will be steady blue with the brakes are pressed with no trailer connected. The green lights when towing are also normal. The knob will show green/red depending on your braking power setting. I have included the list of the LED color patterns for the knob below. If there is an issue you are...
    view full answer...
  • Recommended Plug and Play Brake Controller Adapter for a 2022 Nissan Pathfinder
    No, I am sorry we do not because Tekonsha did not make one for your 2022 Nissan Pathfinder. The Prodigy P3 Brake Controller item # 90195 includes a universal harness you can use but you'll need to cut and splice wires. Curt does have a plug in play adapter but it only works with their brake controllers. It is the Curt Custom Wiring Adapter for Trailer Brake Controllers item # C51382. It will allow you to easily install the Curt Spectrum Trailer Brake Controller item # C51170.
    view full answer...
  • Recommended Curt Brake Controller for a 2023 Jeep Gladiator
    Hey Ed, for your 2023 Jeep Gladiator it looks like you'll just want the Curt Spectrum Trailer Brake Controller # C51170. This is going to include the Spectrum brake controller, plus the wiring harness # C55FR. If there is anything else you need help with, feel free to leave a comment and I'd be happy to help!
    view full answer...
  • Troubleshooting Brake Lights Always on After Installing a Brake Controller
    Hey Honori, welcome back. The red wire being the wrong one would cause that issue if it was wired incorrectly but it would also leave your trailer brakes activated. I don't think it's that. It sounds to me like you have a short or fault somewhere in your tow wiring. Did you have any issues with your trailer lights before you installed the brake controller? If you don't know do you have another vehicle you can connect your trailer to? Isolating the problem to the trailer or vehicle is...
    view full answer...
  • Troubleshooting Random Lights on Curt Spectrum Brake Controller
    Hey Riley! Based on what you're describing with the random lights and flashing green it sounds like your Curt Spectrum # C51170 has an internal issue. Green flashing isn't even part of the troubleshooting guide and since you aren't hooked up to a trailer it wouldn't be ramping up green to try to calibrate. Since the brake controller has a limited lifetime warranty I would reach out to Curt to see if you can get a replacement.
    view full answer...
  • Hitch, Weight Distribution and Brake Controller Recommendations for a 2017 Toyota Sienna XLE
    We can get you everything you need for towing with your 2017 Toyota Sienna XLE. By plastic shield, I believe you are referring to the appearance panel underneath the Sienna, and that will have to trimmed a bit in each of the hitches available for the vehicle. A great Class III hitch would be the Curt # C13105, which is rated for weight distribution and has been given a nearly 5-star review on our site by the over 500 customers that have rated it. As for a brake controller, the wireless...
    view full answer...
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  • Wiring Brake Controller to Under Dash Wiring of 2021 Ford Ranger
    We had the chance to install a brake controller in a similar Ranger as your 2021 model and when using standard brake controller wiring like with the # C51515 to install the Curt Echo Mobile # C27JR the yellow/orange goes to the black wire, the blue wire is going to go to the blue wire, the white wire is going to go to the white wire, and the violet with white stripe goes to the red wire.
    view full answer...
  • Troubleshooting Red Flashing Light on the Curt Venturer Trailer Brake Controller # C74VV
    If you check out the picture that I attached you can see that your Curt Venturer Trailer Brake Controller # C74VV that you installed is detecting an overload or short on the brake circuit of your 2008 GMC Sierra. The wiring adapter # C51515 that you also installed is the correct adapter so now we need to determine if the problem is on your Sierra or your trailer. If you have another trailer with brakes handy then you can simply hook up to that trailer and see if the same thing happens. Whether...
    view full answer...
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  • How Much Can a 2004 Chevrolet Trailblazer with V6 Tow
    The towing capacity of your 2004 Chevrolet Trailblazer can vary from 4,800 lbs to 6,200 lbs depending on drive type and axle ratio. If you can provide these then I can give you an exact towing capacity or you can refer to page 4-55 of your owner's manual. The weight of the car and trailer cannot exceed that of your vehicle's towing capacity. If you are able to tow your car and trailer with the Trailblazer then you will need a trailer wiring harness and brake controller if the trailer...
    view full answer...
  • How to Install the Curt Triflex Brake Controller in a 2019 Toyota Highlander
    Hey Greg! We hear that quite often about U-Haul. The Hopkins 47185 is almost identical to our item # HM47180, so if they installed it correctly you should have a blue wire ran into your 2019 Toyota Highlander's cab. If not you'll need to use item # 12-2-1 because it's what sends the signal from the brake controller to your 7-way connector. If they just dead-ended the wire at the 7-way, I would go back and complain personally. There is no brake controller adapter in the 2019 Toyota Highlander,...
    view full answer...
  • Parts Needed to Install a Trailer Brake Controller on a 2009 Audi Q7
    If your 2009 Audi Q7 does not have a factory trailer connector at the rear of the vehicle then you will need to install both the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit part # 119250KIT and the Universal Installation Kit for Trailer Brake Controller part # ETBC7 in order for a brake controller to work. Trailer brake controllers are universal and can be adapted to fit any vehicle with the correct wiring harness. The correct wiring...
    view full answer...
  • What is Required to Install a Brake Controller in 2019 Toyota Highlander With 4-Way
    Since you have a 4-way in your 2019 Toyota Highlander you can install a brake controller like the Curt TriFlex Trailer Brake Controller # C24VV with Wiring Adapter # C51515 so long as you use the Universal Installation Kit for Trailer Brake Controller # ETBC7. This has a 7-way to 4-way adapter but that alone isn't enough to install a break controller. This kit also includes the necessary circuit breakers, wire and additional hardware you will need to install a brake controller. I have...
    view full answer...
  • How Many Wires Under Hood Need Attached On 2008 Chevy Silverado for Brake Controller
    The Curt TriFlex Trailer Brake Controller part # C24VV is an excellent option for a 2008 Chevrolet Silverado when used with the Universal Wiring Adapter for Curt Trailer Brake Controllers part # C51515. The wires under the dash are already ran and labeled for you. Once the wires under the dash are hooked up, all you will need to do is make one connection under the hood in the engine bay. This connection is a red wire to the right of the fuse box which needs to be attached to the M6 stud...
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  • Recommended Brake Controller for a 2020 Subaru Outback
    Hey Arek, so it looks like Curt is the only brand of Bluetooth brake controllers but they do have two different types. They have the super popular Curt Echo Wireless Brake Controller # C51180 which just plugs into a 7-way and is controlled via the app, or the Curt Echo Under-Dash Bluetooth Brake Controller w/ OneControl # C27JR with the adapter # C51515. If neither of those interest you, the Redarc Tow-Pro Elite Brake Controller # RED44FR is what I'd get. This brake controller is a traditional...
    view full answer...
  • 7-Way Installation Kit to Install Curt TriFlex Brake Controller in 2017 Audi Q5
    So far so good but you need one more thing in order to install the Curt TriFlex Trailer Brake Controller # C24VV with Adapter # C51515 in your 2017 Audi Q5. Now that you have the 4-way # 119250KIT installed you will need to add the Universal Installation Kit for Trailer Brake Controller # ETBC7. This is going to give you the 7-way connector, circuit breakers and rest of the hardware needed to complete your brake controller installation. I have added links to a pair of help articles for...
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  • Recommended Plug and Play Brake Controller and Adapter for a 2015 Mercedes GL350
    Hey Lester. Does your 2015 Mercedes GL350 have the factory tow package? If so the Curt Discovery NEXT Trailer Brake Controller w/ Custom Harness item # C84GJ comes with everything you need to have a plug and play install. If you do not have the factory tow package you'll need the Curt Discovery NEXT Trailer Brake Controller -item # C84VV and the Universal Wiring Adapter for Curt Trailer Brake Controllers item # C51515. The brake controller harness will be located underneath the dash....
    view full answer...
  • Does Curt TriFlex Plug Into 2007 Chevy TrailBlazer
    Even if your 2007 Chevy TrailBlazer has a factory 7-way there is not a plug underneath the dash for a trailer brake controller such as the Curt Spectrum # C51170; you will need to hardwire it with Wiring Adapter # C51515 though the wires will already be run if you have the factory 7-way (you should already have a factory 4-way). If you do not have the factory 7-way you will need to add the Universal Installation Kit for Trailer Brake Controllers # ETBC7. I've added a link on installation...
    view full answer...
  • How Does Brake Controller Install in 2011 Chevy Colorado
    Yes it is that simple! To wire in a brake controller to your 2011 Chevy Colorado only requires you to wire the four wires of the controller to the 4 wires that are present under the dash of your truck. I attached an install video that shows this process on a similar 2015 Colorado.
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  • Wiring Harness Needed to Install a Curt Spectrum in a 2025 Subaru Outback
    Hey Joseph congrats on the new car! To install the Curt Spectrum Brake Controller item # C51170 in your new 2025 Subaru Outback you'll need the Universal Wiring Adapter for Curt Trailer Brake Controllers item # C51515. There is no plug and play adapter. If you have any additional questions go ahead and add them to the comment box below and I'll be happy to help you.
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  • Brake Controller For 1993 Dodge Ram Truck
    To add a brake controller to your 1993 Dodge Ram truck, a great option is from Curt: - Curt Discovery NEXT Trailer Brake Controller # C84VV I like the # C84VV because it's a no-frills, easy to use, economical option that'll just get the job done - activating your trailer brakes. There are settings for the amount of braking you want, an LED display that shows the power output, and an auto shut-off. So it's really simple but also effective, and the only other thing you will need is the...
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  • Will The Curt TriFlex Trailer Brake Controller # C24VV Work as a Replacement For Old Tekonsha?
    Yes, the Curt TriFlex Trailer Brake Controller # C24VV can be used to replace the Tekonsha controller in your 2002 Dodge Ram 1 ton pickup. I do recommend wiring in the Pigtail # C51515 so you will be able to easily disconnect the controller in the future. This will help in the event you have a wiring issue down the road or wish to move the controller to a new truck.
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  • Trailer Hitch and Wiring Recommendations for a 2022 Subaru Outback Wagon Wilderness
    The Curt # C67JR and Draw-Tite # DT73RR and # DT94YR trailer hitches do all fit your 2022 Subaru Outback Wagon Wilderness but I actually recommend going with our etrailer version part # e25TR because it has the hidden crosstube for increased ground clearance like the other options, but more importantly it has a matte black finish that is more subtle but more durable than the classic glossy black finish the other options have. For wiring we'll start with the T-One # 118467 for the basic...
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  • Redarc Tow-Pro Elite vs. Curt Spectrum Brake Controller for 2019 Audi Q5
    On the surface, there is a lot of similarities between the Curt Spectrum Trailer Brake Controller # C51170 and the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR, but the Redarc is truly the superior option in every way for your 2019 Audi Q5. Since you don't have trailer wiring in your Audi you will need to add ZCI Vehicle Wiring Harness # 119250KIT and Universal Installation Kit for Trailer Brake Controller # ETBC7, though the Spectrum also needs the Wiring Adapter for Curt Trailer...
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  • Plug and Play Brake Controller Recommendation for a 2024 Mazda CX-50
    Hey Danny, thanks for reaching out! I recommend using the Curt Echo Under-Dash Bluetooth Brake Controller # C27JR which will plug into your 2024 Mazda CX-50 using the Adapter # C32FV as long as your CX-50 has the factory tow package. I really like this brake controller because you adjust your settings via an app on your phone and then the controller remembers the settings and remains up under your dash so it doesn't affect the look of your vehicle at all. If your vehicle doesn't have...
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  • Constant Voltage on 12V and Brake Controller Output Wire with Curt TriFlex Trailer Brake Controller
    When testing the wire functions after installing the Curt TriFlex Trailer Brake Controller # C24VV and Wiring Harness # C51515 in your 2014 Toyota Sienna, it is normal for both the 12V and brake lights on a tester to light up without actually activating the brakes. This is because the brake controller sends out a small trace current to look for a completed circuit. I have attached a demonstration video on a similar 7 Way Trailer Connector Vehicle Tester # C73NR that shows this right around...
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  • What Trailer Wiring Do I Need on My 2021 Jeep Grand Cherokee (Without Factory Tow Package)?
    For setting up your 2021 Jeep Grand Cherokee (without factory tow package) for wiring, you will first need a 4-way harness. For a 4-way that is compatible with your vehicle, I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C62VR. The Curt connector will allow you to install a 7-way into your vehicle for the functions you need for towing if you need those functions. For a 7-way, once you have the 4-way installed, you need the Universal Installation...
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  • Troubleshooting Lights On Curt Spectrum Trailer Brake Controller Staying On After Braking
    It sounds like there may be an issue with the brake switch on your 2021 Jeep Gladiator. With the Curt Spectrum Trailer Brake Controller # C51170 staying on after you have released the brake pedal it is still receiving power through the red wire of the Universal Wiring Adapter # C51515. You can use a Test Light # PTW2993 to determine if power is still in the red wire with the brake pedal released. You will also want to visually check to ensure that there is nothing in the way that is causing...
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  • Installing Brake Controller On Cold Side Of Brake Switch
    Your Curt Venturer Trailer Brake Controller # C74VV and Universal wiring adapter for Curt controllers # C51515 are a confirmed fit for your 2011 GMC Terrain. This wiring adapter does not directly mount into the dash because this vehicle did not have a tow package available. You will need to tap into the cold side of the brake switch near your brake pedal and you will need to attach a ground as well as a power wire. The blue wire will go from your controller to another length of wire...
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  • Brake Controller Wiring Location on 2008 GMC Canyon with Factory 7-Way
    The brake controller wiring on your 2008 GMC Canyon is actually hiding under your dash. It will be to the left of the steering column and above the brake pedal. This can sometimes be difficult to find, but, you'll know it because it will be held together by a white tag. If you take a look at the linked install video of a brake controller being installed on a similar model year Canyon you can see where you need to look. You will then be able to wire in a brake controller on your 2008 GMC...
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  • Parts Needed To Add Brake Controller To 2019 Audi Q7 3.0
    Hello Lonnie. We do offer a wiring harness and brake controller that will work on your 2019 Audo Q7. I am assuming your Audi currently has no trailer connector of any kind, and if this is not the case just let me know. There are two wiring kits you will need first. The Tekonsha ZCI harness # 119250KIT, and the Universal Installation Kit # ETBC7. These two kits combines contain everything you need to wire your vehicle with both a 4-flat and 7-way, including all of the necessary wires for...
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  • Parts Needed to Add 7-Way to 2021 Toyota Highlander XLE With 4-Way From Factory Tow Package
    Hello Joshua; it looks like you already figured this out. Since you already have a 4-way the only thing you need is the Universal Installation Kit for Trailer Brake Controller # ETBC7 you ordered. This comes with the adapter, wiring, breakers, and everything else required to upgrade a 4-way to a 7-way. It will allow you to install the Curt Spectrum Brake Controller # C72RV you also ordered. With the 7-way and brake controller you will be able to use the brakes on your trailer.
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  • Best Brake Controller for a 2024 Entegra Accolade XL 37L
    Hey Casey, thanks for reaching out! I recommend going with the Curt Spectrum Brake Controller w/Universal Harness # C72RV for how versatile it is when it comes to mounting the control knob, and that it uses colors to tell you what's going on as opposed to codes. There isn't a custom wiring adapter for it (we don't know what OEM plug exists on your Entegra) but you'll be able to use the universal wiring to connect it to the existing wiring on your motorhome. You're going to look for a...
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  • Parts Needed To Install A Curt Spectrum In A 2023 Chevy Express 3500
    Hey Rick, There isn't a custom-fit wire harness for your Chevy Express so you'll want to go with the kit that has the universal splice-in harness # C72RV in order to get it installed. The wires would need to be spliced into your factory wiring in the following manner: White - ground to frame Black - run to battery with 10 gauge wire # 10-1-1 and inline 30 amp circuit breaker # PK54530 Blue - run to brake controller output pin on 7-way with 10 gauge wire # 10-1-1 Red - connect to cold...
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  • Can 2022 Toyota Highlander Use Curt Brake Controller
    Yes, you can use the Curt brake controller on your 2022 Toyota Highlander, you just need the correct wiring adapter. For your '22 Highlander, the controller and wiring adapter you need are in the following package: - Curt Spectrum Brake Controller With Harness # C72RV If you don't have a 7-way on your '22 Highlander, then you will need the 4-Way Wiring Harness # TK99FR (if you do NOT have the factory tow package) OR # TK74FR (if you DO have the factory tow package) along with the Universal...
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Amanda K
Updated by:
Amanda K
Employee Sabrina W
Written by:
Sabrina W

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