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Roadmaster InvisiBrake Supplemental Braking System Installation - 2019 Jeep Cherokee

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How to Install a Roadmaster InvisiBrake Supplemental Braking System on a 2019 Jeep Cherokee


Hi there Cherokee owners. Today in our 2019 Jeep Cherokee we're going to be taking a look at and showing you how to install a Roadmasters InvisiBrake supplemental braking system.They're going to be five main components you'll need to flat tow your vehicle behind your motor home. One of the first and most important items is going to be our tow bar here. The tow bar is going to be your attachment that connects your motor home to your vehicle. In addition to your tow bar, you're also going to need safety cables, which is a supplementary attachment between your motor home and your vehicle. Now our Nighthawk here does come with safety cables included with it, and they go on these nice channels underneath, keeping it nice and neat.

Now if you've got a different tow bar, you may need to purchase safety cables separately.We'll also need a base plate which is going to install on our vehicle and provides the attachment point for our tow bar to hook to our vehicle. We'll also need our diode wiring, which is going to take all of our lighting signals from our motor home, transfer it back to the vehicle so that way the lights at the back of our vehicle is going to mimic the lights on our motor home. So everybody behind us knows our intentions when going down the road.And lastly, you're going to need your supplemental braking system. This is going to apply the brakes in your vehicle when you apply the brakes in your motor home to assist it when stopping. This is going to be a proportional braking system.

It uses a nurse's sensors as well as some of the inputs from your diode wiring to make a determination on the appropriate amount of pressure to apply to the brake pedal.So what this really means for you is that the harder you press your brake pedal here in your motor home trying to stop your motor home, it senses that there in the back and it applies the pedal appropriately to help it slow down at the same pace as your motor home. Another thing that I like about this kit is the indicator that is located in your motor home. We can see here it's illuminated while I'm pressing the brake pedal, showing that the brakes are applied in are towed vehicle.This is what our system is gonna look like when it's installed. Your operating unit is going to be located underneath your driver's seat. Now again, you can mount this wherever, but this is going to be one of the easiest locations to mount it, as well as an easy place for you to access and monitor it in case you need to.

This can come in handy when you're dialing it in for various loads that you may haul.Unlike some of the other permanent mount braking systems out there, this one's going to use a pulley system which allows you to hide a lot of those components that are going to be present to pull your pedal. There's going to be an operating cylinder that's going to be charged with air to pull this cable, which is very similar to other braking systems out there. However, those attach to the operating cylinder directly to your brake pedal. So you've now got a large cylinder object attached to your brake pedal, which can be a little cumbersome and those are also somewhat more difficult to install due to lack of room. With this setup, you only have your bracket here installed on your brake pedal, And the rest of your system, it just hooks to this pulley here at the back, which has a much smaller footprint than a cylinder.

Then the cable routes back to your operating cylinder, which is located right next to our operating unit that we saw just a minute ago.Included in your kit, you'll also receive a breakaway switch. Your breakaway switch is going to attach to the hitch on your motor home, and in the event of a catastrophic disconnect, this cable will pull the pin out of our breakaway switch, which will apply the brakes inside of our vehicle to help it come to a safe stop.Now I'm not gonna lie to you, this installation is a little bit longer and it's a little bit more involved. If you don't feel comfortable doing it yourself, you can take it to a professional. However, if you follow along with us we're going to overview the installation now so you can have the confidence to do it at home.We'll begin our installation by mounting all of the major components. The largest and most difficult component to find a location for is going to be our operating unit here, and we've mounted it underneath our driver's seat. Now you may be thinking, well, this looks like it's sticking out pretty far behind the seat. I've got the seat all the way forward. You can see where the back of the actual track is for the seat here. So it does sit pretty nicely under there when you don't have it all the way forward.One of the cool things about the InvisiBrake operating unit is how it can be mounted. One of the ways that Roadmaster recommends mounting it is to just cut slits in the carpet on each side of the unit and then these little ears here, you take those and you just kind of bend them down. You push those in the slits you made, and then you just press down on the unit and that folds them back flat and it locks it in place to the carpet.Next we need to mount the cylinder that activates our brake pedal. You'll get two clamps that come in your kit, and some bolts to attach those. Now the bolts that come included with your InvisiBrake kit are not going to be long enough to wrap around your pedal due to the extreme width of this brake pedal. We put our cable end towards the edge of our driver's side here, and we mounted the pulley that our cable rides on, on the firewall just below the grommet here underneath.You can see here where our cable runs down underneath our carpet. The sheathing here needs to be attached as well. We've used two self tapping screws to attach that and it just sits right over top of the metal end of our sheathing. You want to make sure you've got this in a direct straight line up to your pulley and our pulley needs to be in a direct straight line with the attachment here on our pedal.We then routed our cable along with all of our wiring underneath the carpet towards our unit here. Your wiring is going to consist of two different harnesses. You're going to have a harness that has yellow, green, brown and white wires, and then you're going to have another harness that has kind of two separate little harnesses coming off of it. One's going to be red and black for your power and ground, and the other one here's going to be for your breakaway switch, these black and white wires that are in the sheathing.Here you can see where we routed our cable underneath the carpet and where we came out the back here. There's already a slit in your carpet here to get this routed through, but we did have to cut the slit a little bit longer to make for proper clearance so that way our cable doesn't get into a bind. The other end of our cable attaches to the cylinder here and we just used a zip tie to get that attached to the carpet. It's okay, it actually fits into nice little pocket here between our connector and the raised section of our floor.From our cylinder we took the very small vacuum line that comes in our kit. You have two different size vacuum lines, we want the smallest vacuum line. One end just pushes here into our cylinder, and the other end we just routed underneath this beam right over here to our operating unit and it just quick connects and pushes into the fitting right there. Just to the left of our vacuum line that we connected to our cylinder, you're going to have a larger vacuum line here. This attaches using a small rubber adapter that you see here, and then the vacuum line pushes into that rubber adapter. This vacuum line we routed up towards our pedals right next to our harness wiring. All the harnesses in vacuum line that we routed it up here is right next to our cable here just to the left of it. We zip tied all those together so that way it's one giant harness now. We routed it through the grommet just above where we mounted our pulley.Now the wiring is going to come out on the other side of your firewall. It's going to be very difficult to see where it is. I had difficulties finding it myself, but the grommet is basically located directly below your brake booster. So this is your brake master reservoir right here, and the brake boosters going to be here just behind it and a little bit down the cylindrical black object just below our booster, which is pretty large unit about that size. Just below that is where our grommet is going to come out. The easiest way to get through this is to kind of crawl under the vehicle on the driver's side, kind of go behind the wheel and you can kind of reach up over your suspension components to get your hand up in there to grab that wiring.We then pulled it up here, and again you have to do most of this by feel because it is difficult to see and it's pretty tight, but you can get your hands down in there, and you see here that it is possible. It is tight. Then we routed it across the back of our fuse box here, and then around the corner of our fuse box, and at this point I would take all of the wiring and just kind of drape it over the front because we're gonna need to start branching it off to the various locations it's going to go.The first thing we're going to connect is going to be our harness that has the four colored wiring. This is going to connect to your diode wiring that you had previously installed, and it's pretty simple really. The diode wiring is going to be this harness here. So we cut the green, yellow and brown wire from our harness, and then we took the green, yellow and brown wire from our new harness from our InvisiBrake. We use heat shrink butt connectors and we twisted it together with one side of the green wire that we just cut. Same with the yellow, same with the Brown. We crimped those together, and then we just crimped the other side of our butt connector back to our diode wiring. So now our diode wiring is crimped together again and complete, and our new harness is also attached to one side of each of those butt connectors, splicing it into that wiring.You can do the same thing with the white wire, however since we're doing it right here and it's right next to our battery negative post, I went ahead and took both the white wires from our diode wiring kit, and from our new InvisiBrake system, connecting to them both to a single ring terminal and went and hooked them directly to our negative battery post.Next we'll hook up our red and black wires from our harness that we routed over here. The red wire we're going to attach to the fuse harness that comes in our kit. Again, we upgraded the heat shrink butt connectors. You can pick those up here at etrailer.com. It's to keep out any moisture from getting inside there, ensuring a longer lasting connection. The other end of our fuse harness, we're going to attach a ring terminal to it and attach it to the battery positive post.The nuts on our battery cables can be removed using a 10 millimeter socket. You can then just tuck that out of the way. The black wire from our harness just connects to the ground stud right over here where we had connected our white wire. So we just crimped on a ring terminal on there and attached it to the stud.The last wire we're going to need to hook up for our InvisiBrake system is the breakaway switch wire. That's the black and white wires we saw at the back of the control box, and not too far after coming out they go into a sheathing. You can see that sheathing here. Just this black sheathing with the two wires inside of it. We routed those over here with the rest of our wiring, but we continued that wiring on past our washer fill reservoir. Then we went down underneath our headlight here. This simply just plugs into your breakaway switch.You can see the two mating connectors here where I've got them plugged in, and your breakaway switch easily mounts to the bracket that comes included with your base plate. All the hardware you need to get it mounted is also included with the base plates. It's just a simple nut and a bolt that holds it on there. You want to keep in mind that with your breakaway switch installed you will have to do a little bit additional terming around it in order for it to fit through.Now if you're wondering about the vacuum line that we routed out with our wiring, that came up in the same location, but instead of going on the backside of the fuse box, we actually went just to the side of our brake fluid reservoir here, and then we had to tee into the existing brake booster vacuum line.You can see our tee fitting here, so we simply just took the brake booster vacuum line here. You can see where it is kind of zip tied onto our fluid reservoir here. This is a factory zip tie. So just beyond that, about an inch and a half, maybe two inches beyond this here we went ahead and cut our vacuum line in half. We took the hose that comes in our kit, we slid it onto the vacuum line on one end, placed our tee in the middle.On the other side of our tee we put some more hose that comes in our kit. We then followed that with a check valve that comes in our kit, making sure that the black side here is going towards the engine or a way from the brake booster. Then some additional hose, and that just reconnects back to our factory brake booster vacuum line.The third port on our tee, we took the smaller rubber hose that comes in our kit and attached it to that, and then took our vacuum line that we routed out and just pushed it up inside that rubber hose.Now at this point your InvisiBrake system is going to be operational. All you have to do is insert the fuse into your fuse harness to power it up and you can test everything out. There is an additional monitor circuit that can be installed inside of your motor home, so that way whenever the brake pedal is depressed, it'll illuminate this monitor in your motor home so you can verify that your system is working. In order to get this installed on your Jeep Cherokee, you are going to have to purchase an additional brake switch. You can see our brake switch installed here, and we have to use this because our factory brake switch doesn't provide the appropriate output to illuminate the LED.This break switch is pretty easy to install. You simply take off one of the nuts here. Now you want to use the stud that we used up here, but it's going to be the same size, 13 millimeter, and look just like this, but you want to use that top left stud. So you removed the nut, you slide your bracket on, you reinstall the nut, and then you install your brake pedal switch into the end here. There's just a nut that goes on each side and you turn those nuts to adjust how far it sticks in and out. You want to make sure that the plunger on the other side of your switch is being depressed by the brake pedal. Then when you press down on the brake pedal, it releases the plunger which activates the switch, so we can get that current sent up to our motor home.There's two wires here in the back of our switch that we need to connect. One is just going to connect to power, and the easiest way to connect that to power is it does come with some wire in the kit. So we use the red wire that came with it to extend out one side of our switch. It doesn't matter which wire you use. So just attach it to one of these two. Then we used a quick splice on our red wire that we had connected to the fuse harness. So we're just tapping into that wire that already goes to power. This is a great way to do it cause it's the easiest way, and this power line already has a fuse so you know it's fuse protected and safe.The other wire coming off of our stoplight switch is going to connect to the single wire harness that comes in our kit that has bullet connectors on it. You can run that up to the front here, and your bullet connectors just going to hang down next to your six pole connector. Now we decided to go ahead and eliminate this, and we connected that wire directly to our six pole connector straight to the stop circuit for a brake controller. Now if you're going to be using a brake controller in your motor home, you won't have an open circuit available cause you're going to be using that brake controller circuit. But since our customer is not using a brake controller with his motor home, we can go ahead and use those existing circuits which gives us a much cleaner installation, and these bullet connectors really are susceptible to corrosion over time and stuff. So this is going to be a much better, longer lasting connection.You'll receive an even longer version of that harness that I just showed you and that's for the motor home side. You'll take the connector end, put it back here next to your seven pole connector, and you'll route that wire up to the front to be connected to the monitor light. Now again, we're using our existing circuits for our brake controller to be able to hook this up since we don't have a brake controller. inaudible 00:16:00 is going to travel through the existing wiring that already is in place on our vehicle and we just need to find the other end at the front.We're now here at the front where we're going to be connecting our monitor light, as well as the audio board, to the wire that we just routed up here in the front. Or, if you're using an existing wiring for your brake controller wire, like we did here, you can find that wire. We've gone ahead and found it. This wire is going to connect to the red wire for both your LED and your audio board. Then the other wires coming off of your LED and your audio board is just going to go to ground. We're using this little green wire here and a self tapping screw to just get it attached to ground on our motor home.Now you want to make sure that before you connect your wiring for your LED, that you drill out the hole and push the LED through where you want it to be mounted, so that way your wires are already on the other side. So you can make that connection and keep everything nice and clean. There's also a sticker that comes in your kit that you can place on before pushing your LED through, that gives you an indication of what this LED is representing.That completes our installation of Roadmasters InvisiBrake supplemental braking system on your 2019 Jeep Cherokee.


Info for these parts were:

Employee Jeff D
Video Edited:
Jeff D
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Andrew L
Video Edited:
Andrew L
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Nicholas E
Test Fit:
Nicholas E
Employee Shane H
Test Fit:
Shane H
Employee Alan C
Video by:
Alan C
Employee Michael B
Video by:
Michael B
Employee David F
Installed by:
David F

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