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Tekonsha Prodigy P3 Trailer Brake Controller Installation - 2019 Toyota Highlander

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How to Install the Tekonsha Prodigy P3 Trailer Brake Controller on a 2019 Toyota Highlander


Connor: Hey, everybody. Connor here today at etrailer.com. We're going to be going over and showing you how to install the Tekonsha Prodigy P3 Trailer Brake Controller here on our 2019 Toyota Highlander.This is the screen we're going to get when we have our trailer connected here. What we can do is we can go ahead and adjust our power. We can do this with the gain settings on the left-hand and right-hand side of the controller. This is pretty much going to be geared towards our specific trailer and how much weight we have or how much we're hauling.

We're going to be able to fine tune our brakes here so we're not locking up our wheels when we're driving down the highway, but we're able to come to a smooth and clean stop with both the tow vehicle and trailer. Once we find the correct gain for our trailer, we can go ahead and hit okay.The thing I really like about the P3 is that there's actually going to be five storable settings, meaning we can go through that gain adjustment procedure and store this for five different trailers. If we have multiple trailers, then the P3 is going to be the perfect option for you. The P3 is going to be an excellent option here for a Toyota Highlander. It's actually one of the top brake controllers on the market and for good reason.

It's been around a long time. It's well-reviewed and it's proven that it works great day in and day out.The P3 is a proportional brake controller, and what that means is it's going to apply brakes to our trailer in an amount proportional to that in the towed vehicle. Say we're on the highway, somebody cuts in front of us, we really need to slam on our brakes and slow both us and our trailer down. The vehicle is going to send a lot of braking force to our trailer in order to help to come to that stop. However, say we're just moseying around in town, we just need to come to a slow stop at a stoplight.

We're not going to get that huge in rush of braking force to our trailer. We're just going to get a slow, steady current to help us come to a stop.Something else the P3 has that I really like, say we're at the upper end of the towing capacity on our Highlander. We really want those brakes. We're going to set our gain pretty high, but there's also another feature that we can help to really get on the brakes sooner, and that's going to be the integrated boost settings.We're going to have three different boost settings here, which are really going to help those trailer brakes grab right away. It is proportional brake controller so we don't have to wait for that delay, but the boost feature is going to let you get that maximum power much sooner than you would normally.If you want to turn on the boost settings, it's super easy to do so.

This button in the upper right-hand corner allows you to select the first boost setting, the second, the third, or you can turn it off altogether. For those special occasions where we really need to get on the brakes really quick, we're going to have our manual override button here. It's a nice, easy-to-use slide lever on the bottom. It will send full power to the trailer's brakes.As the P3 is a premium brake controller, you're going to get a little bit more finer details, which is the ability to adjust the color or the backlighting of our LED display, as well as the brightness, which you can do here. We can also, within these displays, select our brake type.That brings me to my next point about the P3, is that it's going to be a great option if you have a boat trailer with electric over hydraulic brakes, because keep in mind, not all brake controllers are compatible with such. If you do have that, the P3 is going to be an excellent option because you can effectively control those trailer brakes. Here, we see the option for hydraulic, which means we can use this with electric over hydraulic brakes. But, most of the applications are just going to be standard electric so we'll make sure we're on that setting.In summary, you really can't go wrong with the P3. As we said, it's really tried and true brake controller. It's going to work well for pretty much any vehicle in any trailer. We have tons of storable settings that we can use for different trailers. All sorts of features, such as the boost settings, that are really going to help us take full control of our trailer.The first step of our installation here, we're going to take our actual controller and we're going to find a place to mount it. Now, really, the only restriction we have is it needs to be parallel to the direction of travel, meaning we can't have it crooked like this, crooked like that. It needs to be parallel.You can see here, this location is probably going to be our best bet. It's not going to interfere with our knee too much. It's sort of going to be out of the way, but it's still going to be within reach for us to manipulate the controls.What we're going to do now is, we have two options for mounting. We can use a traditional bracket, which you see here that comes with the kit. It screws into the side. Or, we can use this other mounting bracket that comes here. It's a little bit of a cleaner install fit. Installs like this. Pushes into position. And then there's actually going be another bracket here, a smaller bracket, which is what we drill into the dash, most likely around there, and then we mount it to this bracket here.Let's go ahead and drill this bracket now, then we can mount the controller. Keep in mind, we do need to check behind this panel first, before we drill into it, to make sure we're not drilling into anything and damaging it. We do have our airbag right here so we want to use extra precaution.In our kit here, we're going to get these tiny screws. We can go ahead and attach our two brackets here using these screws. Now, we can take the pigtail. Keep in mind, we're going to be using the separate pigtail that's specific for these Toyota vehicles as there's an integrated diode. We don't want to use the pigtail that actually comes with the brake controller. But, we can go ahead now and connect it to our connections we've made.Your wire colors may look a little bit different. We ran the black. This is for the battery. This is for the 12-volt battery. This is going to go to the black wire on our harness. This one will be color-to-color. The rest, however, are not all color-to-color. It really just depends on what color wires you used when you ran your circuits. But we'll go ahead and splice that on.We use this thick white wire for the brake output circuit. That's the one we're going to attach to the blue wire. Our other white wire here is for the ground. We actually just made a little ground here on the inside of this panel with the ring terminal. Go ahead and attach this. And then the final connection will be red-to-red, which is for the stoplight switch circuit. And there we have it.What I'm going to do next is I'm going to go ahead and tape up these connections here. Then I'm going to tuck the wiring harness under the dash. We'll plug it into the back of the brake controller to make sure everything works. Now, once we have our crimps made, we have the two harnesses spliced together, all we did was route the wire up and along the top side of this panel here and to the back of our brake controller.Once we plug it into our brake controller, we should get this screen here, which lights up and lets us know everything was done correctly.And that will do it today for our look and installation of the Tekonsha Prodigy P3 Trailer Brake Controller here on our 2019 Toyota Highlander..


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