Review on 🚗 CURT 56217 Custom 4-Pin Trailer Wiring Harness for Toyota Highlander & Lexus RX350 - Easy Vehicle-Side Installation by Duy Desperado

So, as most people say, it's very easy to install. I installed it on a 2015 Highlander Hybrid. There are many videos on the internet on how to get to the wiring in the back of the car so make sure to check them out. But there are a few things you should know, and reading this should make it easier for you than for me. Once you get to the point where you've removed the pieces and connected the two connectors, you have two decisions to make. The first is whether you drill a hole for the included ground wire screw or use a screw or bolt already installed in the car. I decided to drill a hole, grind it down and I think this is the best option as you don't have to grind any nuts or bolts and you can put that bolt where you like - there are plenty of safe places in the ground to go Drill. on the back, next to the adapter port. The second decision is where to place the 4-pin connector (inside or outside the car). I think the best option is to leave it in the car if you don't use it often. You walk to the compartment where the tools for the spare wheel are located. I routed it through a piece of plastic that goes over the battery - see pic (non-hybrid owners don't have the battery on the back). If you leave it there, it's easy to get to - you'll never see it unless you use it, and you don't have to worry about routing it under your car and installing it anywhere. If it is outside the car, it may corrode, cut the wires, damage it, etc. If you want to see the wires, skip and install it. However, if you miss it, the Hybrid's drain hole is in a different location than regular Highlanders, or at least it wasn't the same as I saw in the video for the non-Hybrid. On a hybrid it's between the battery and the rear below - you'll probably need a light to see it. I was confused by the non-hybrid video showing the drain plug at the back of the car (i.e. the hole faces the back of the car, not the pavement like on the hybrid). As for the 10 amp fuse (the one that comes with the car, not the one built into the adapter) the guide says to find out where to put it in the manual (there were two in my kit, you just need one plus the built-in, so you'll be using 2 out of 3). Well, I didn't find in the manual where to put the "tag" fuse, but I watched the video of the tag and it seemed like I could "guess" where it came from came. First, the fuse box is under the hood, and this is the main block (there are more than one) - look at the picture where this fuse is located. There were only 2 possible places for it and this is the one closest to the front of the car. Next you should check your installation. If you don't have a trailer to hook it up to (or even if you do have one) there is a very cheap (less than $7) and easy solution. Do yourself a huge favor and buy a tester. They're cheap and I don't care if you're an electrician and have all sorts of ways to test it. It's so easy to use a universal tester that saving $7 isn't worth the extra effort. I bought the SeaSense EZ TROUBLESHOOTER chain tester here at Revain and I highly recommend it. Did I mention you need to buy a tester? Finally, once you reconnect and clean the negative battery terminal and try to close the hatch door with the button on the door, it will probably beep rather than close. The reason for this is that if you disconnected the battery (assuming you did so during installation, and you should do so), when the door is open, the door's "open/close sensor" doesn't know if it is open or closed, hence the beep. Manually close the door and it should work normally after that.