etrailer | Roadmaster Automatic Battery Disconnect Installation - 2021 Chevrolet Trailblazer

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Full transcript: https://www.etrailer.com/tv-install-r...
Hi there, Trailblazer owners. Today on your 2021 Chevrolet Trailblazer, we're gonna be taking a look at and showing you how to install Roadmaster's Battery Disconnect. There's five main components you'll need when flat towing your vehicle behind your motorhome. You'll need your tow bar, which is the connection between your motorhome and your vehicle. You'll need your base plate, which is the connection point on your vehicle that your tow bar will attach to. You'll need your safety cables, which is a supplemental connection in addition to your tow bar.

You'll also need your diode wiring, which will take the lighting signals from your motorhome and transfer them to the lights at the back of your vehicle, so people will know your intentions when going down the road. And lastly, you'll need your supplemental braking system, which will apply the brakes in your vehicle when you hit them in your motorhome to help you come to a safe stop. Some additional components you'll want to consider is a high-low adapter, this is what we've got installed here, and this is only necessary if the height of your motor home and your base plate differ more than three inches. We've got an eight-inch drop installed here in order to give us a difference of only one and a half inches between the two, giving us a nice level tow bar here, because if the angle is too extreme, what will happen is every time that you take off, you will either pull up or down, on the suspension on your vehicle, and that can prematurely wear out those components. By having it be completely flat like this, we're just pulling it straight, and we're not going to be affecting our suspension in any way.

You will need to make sure that you got the additional pins, so you can get these all attached. Another thing that you'll maybe want to consider is your safety cables, if they're coily cables, in most cases, you're usually will have the length that you'll need, but adding a high-low adapter does often make your straight cables not quite long enough, and we've got extensions here at etrailer, if you we're to need those as well, to ensure your cables are long enough. Roadmaster's battery disconnect switch is going to allow us to quickly disconnect our battery from our vehicle. This is often needed for certain vehicles when you place them into flat tow mode. Our Trailblazer here requires the battery to be disconnected when flat towing it.

One of the issues with disconnecting your battery though, when flat towing, is if you've got nothing hooked up to your battery, you've got no power for anything, and oftentimes you need a supplemental braking system and potentially other accessories powered up and working for proper flat tow of your vehicle. By adding a battery disconnect in, we can easily get ourselves a source of power from the battery while getting the entire vehicle, the rest of our vehicle here disconnected, and we can also get our battery into flat towed much faster because we can disconnect the battery with the press of a button. If we take a look at our disconnect switch here, the post over on this side is connected directly to the battery post and the post on this side of our switch, connects it back to the vehicle. We can kind of see that here. We'll just take this whole cover off to make things a little easier to see.

So we can see here where we are connected to that first post and this connects it to the second post, powering up the whole bus on our vehicle. And we can engage and disengage this with the press of a button. And this is a very high powered solenoid inside that is easily capable of handling high amperage draw that our vehicle may need for certain accessories that it has. This is a very quick and easy way to make your flat tow much simpler and get everything installed very easily. We can see here on the post on this side, where we've got our supplemental braking system installed. So this way, no matter what, when we press that disconnect button, we're just disconnecting the car and this is going to stay powered up. Let's head in on inside so we can see how easy it is to operate it. We're now inside the vehicle here and we can see this is our button that allows us to connect and disconnect the battery. We can go ahead and pan out and see that we've got our dome lights currently on here on the vehicle. I'm gonna go ahead and press t