The specs for the 2025 show the prewiring is standard on all models as it has been. However I see posts from new KIA Sorento owners theirs says the same but can not find it....

 

Any updates?

 

Not even hyundai can tell me about trailer wiring harness. Have to wait until someone designs a new one.

 

Maybe yours sneaked through the assembly line before they could install it. LOL
Product Guide says it's supposed to be on it. Specs under Powertrain and Handling also says its there.

 

Do you have a 2025 Hyundai Tuscon SEL that has the harness under it?

 

Spoke with Hyundai today. They told me no 2025 tuscon prewiring, only xrt model

 

I guess that means that Curt and other companies will be coming out with a new wiring harness for the other 2025 Tucsons.

 

Their USA site in more than one place shows Trailer pre-wiring standard on all trims 2025. Of course it's possible there was a last minute change.

I would check where it used to be, but look for another cover over it now.. Possibly there. The Sorento had it hidden like that and it had to be fished out, so maybe now the Tucson too?

 

There are 2 plugs but they are female. They have to make a male connector. The previous connector was male.

 

I found this on the Hyundai Shop site, aka, Garvey Hyundai. It's the Tekonsha ZCI™ Zero Contact Interface Universal ModuLite®. Expensive and not an easy installation. Using the fit guide on Tekonsha's site there's no option for the 2025 Tucson??

 

Just bought a 2025 Tuscon SEL after trading in my 2022 SEL. The 2022 had 3 plugs - a male that mated with a female, and a 2nd female that accepted the Curt male plug. In effect, you might think of the 2022 factory wiring as a T connection. My 2025 only has the male-female connector, with no empty female plug waiting for an aftermarket connector, like Curt. if you disconnect the 2025 M-F connection, you lose the tail light functions. I'm wondering if the aftermarket will have to create a T connector of their own, which fits between the factory M-F connection. I have no desire to splice anything (as well as run a power wire to the battery to power the aftermarket modules).

 

That's the plug I used the male that mated with the female. Have to wait till a new aftermarket connector comes out.

 

So I have confirmed that the 2024 Curt hitch Class 3 hitch will fit on the 2025 gas models. No clue on hybrid. I also confirmed what fenderman posted about the plugs. The male/female certainly are there and if you disconnect them, you lose tail lights. I will be playing around to see if the universal adapters work, but as stated, you most likely will need to run a 12V wire from front to back to power the adapter. If that is the case, I may wait for Tekonsa to release a T-connector version. If anybody has used both Curt and Tekonsa, you know that the Tekonsa is worth the extra $. I have never had one fail, ever, and I have had a few Curts fail. If I find something to work, I will post again.

 

Mike U - I also successfully moved my Curt Class 3 hitch from my 2022 SEL to my 2025 SEL. As you know, on each side there is one vertical bolt and two side bolts that secure the hitch to the frame. I noticed when tightening the side bolts that there was a gap of appx 1/8"+ between the hitch mounting bracket and the car frame. This drew in when I really tightened the bolts, but it also means that it wasn't an exact fit (the bolt holes did line up perfectly, though). I'm going to check before and after I tow to make sure those bolts aren't loosening.

Thanks for the connector info. Can you please post when you see the Tekonsa release?

 

My hitch fit perfect. Holes were the same as my 2022. I also used a torque wrench to tighten bolts.

 

As an engineer, if tightening the bolts closed the gaps, thats a good thing. It will act like the conical spring washers they provide with the hitch and will keep the bolts tight.

 

Well after reading some posts here, I did bend the knee and look under the rear of my HEV, yes there was an electrical harness under the Driver s side. I don't intend to attach a trailer, but my cousin plans on his 2023 HEV.
I presume you need an adaptor to connect to the Hyundai Plug.

 

The "adapter" of which you speak is actually the male plug that comes attached to the aftermarket wiring harness. Just go to the Curt site (or competitors) and filter on your vehicle and you'll see what I mean. As long as you're pre-2025, it's just plug in and it works

 

I'm thinking they'll develop something like this that fits between the existing male/female connectors. The adapter I've pictured here is from another vehicle that I'll be installing shortly. But I wonder if this is what they'll come up with. Just a guess.

 

Well, Boys, looks like we're officially out of luck. This is Hyundai's response to my request for info as to why the 2025's don't come with the plug that the previous models did:

"The SEL Convenience package for the 2025 TUCSON does not include the plug as a port installed option for a trailer wiring harness, but the XRT trim does. Hyundai values your opinion and we appreciate you taking the time to contact us with your comments and suggestions regarding the design of the TUCSON. We try to design and equip all of our models with materials and features that will appeal to our current and potential customers. Some of the factors that are evaluated during vehicle design and production include demand, safety, durability, efficiency, comfort, convenience and aesthetics.

Based upon the information you provided, the Parts department at your preferred, local Hyundai dealership would be in the best position to help you with your inquiry about availability of a T-connector as an accessory. Regrettably, Hyundai Customer Care is not qualified to give parts, pricing or technical assistance. Or to locate your nearest dealer, please visit Hyundai Dealer Locater | Dealerships Near Me | Hyundai USA to schedule your appointment. "

 

Can you post the part number for the T-connector.??

 

As per my dealer the p/n for the harness connector is CWF67-AC000CA that being said. They said it isn't available for at least 3 weeks maybe more. And it's list at 283$ canadian.... compared to the curt hookup that fits 2022-24 thqt is like 76$....

Really pissed because 1. Supposed to be pre wired....2. Sold my old car and now I can't tow....unless I gimmick an universal adapter and cut and slice some wires....

 

you can actually order it online from hyundai parts stores. anywhere from 153-200 US dollars plus shipping. the connector is under the dust shield in the middle you have to remove for the hitch

 

From etrailer: Q&A
Amazon
eBay

 

From etrailer: Q&A
Amazon
eBay

Thanks, BobP. This universal set up will work on the new Tucson. Keep in mind, for years, every wiring installer did it this way. He found the wires leading to the tail lights, and tapped into them. Only extra issue needed here is to run a couple wires to the fuse box. No big deal for anybody familiar with wiring. Consider this problem solved.

 

It's disappointing that Hyundai stopped the prewired plug.?? I will wait and see if someone comes out with a plug and play model. If enough people ask someone might make one!!

 

Worse, disappointing the Hyundai site shows models are prewired..

 

I did get the same response from Hyundai, but I THINK the part number for the connector has not been revealed just yet. I think the part number given above is for the hitch itself, but I am not positive. I am still in a holding pattern waiting for a plug-n-play option. However, if you are in need ASAP, the Tekonsa universal unit will work for you. You just need to fish a wire all the way to your battery to power the unit up. Also, there are a few complaints about it not controlling trailer lights properly and needing to be re-taught. As such, I am going to wait for something easy....for now.

 

I think i'm going to do the same. Hold out for as long as I can and wait for that new connector🤞

 

I was looking at the Tekonsha units linked above. These things are very similar in appearance, and no doubt identical in design and performance with other universal units I've both seen and installed. I've installed two different ones from two manufacturers, and both have worked just fine. Most of you guys on this forum don't understand how these things work, or how to install them. Below is a picture of one that I installed.

This device is called is called a Pathfinder PAH60. It is a remote fuse block. Inside, it has internal breakers that are 'fused" for about 10 amps (for each circuit that it supplies). If something shorts out the breaker, just shutting the car off and turning it on again resets the breaker. Another one, made by "Show Chrome," is very similar to it. It is available here: CLICKY. However, I've never installed one of these. The Show Chrome unit costs a good deal less than the one I've pictured above, but I've never installed that one.
So, look at the picture above.
To describe what you see, the two heavy cables (on the right) power the device straight from the battery. The four small diameter wires found on the left of the device are the trigger wires. They simply attach to left and right blinker, brake and the running (or parking) lights. These four trigger wires attach to the tail light wires on your car. Any competent installer knows how to do this: easy-peasy. The reason they're called trigger wires is because of how they work. Though they're attached to say for example, your brake lights, they draw no amperage. They "sense" when you hit your brakes and send a signal to the fuse block. That's all they do. Here's the clincher... WHEN they do, the fuse block turns on the brake light circuit. This circuit then powers your trailer's brake lights directly from the battery, drawing NO power from the brake light circuit. This keeps the computer on new cars happy, as it circumvents the car's CANBUS system. Make sense?
So, in the picture above, the 8 wires coming out of the top of the fuse block power your trailer hitch wiring. Each is labeled and it's really easy to hook up. Again, it's a universal fuse block and will work on any car, motorcycle, boat or what ever. It's waterproof and shock proof. These companies have sold thousands of these things. Hope that helps.

 

First, thanks for the great post! Very thorough and detailed.

Re: the 4 trigger wires:
1. Were you able to connect the 4 wires to the vehicle wiring underneath (somewhere near the connector, where the '22-'24 T harness USED to be!), behind the rear driver's wheel or did you have to fish them up into the tail light area (and req. you to remove the tail light lens to get at the wires)?

2. When connecting these 4 wires, did you have to splice into the vehicle wires (cut and connect or use those press-splice connectors where the blade has 2 grooves that pierce the wire insulation) or do the 4 wires have sensor ends where the vehicle wires pass through the connectors without cutting or piercing the vehicle wires?

The Show Chrome device appears to use the piercing style connector. The Pathfinder PAH60 appears to use WAGO connectors (like you used for the 8 wires out of the top).

 

I have a Tucson Hybrid N1 2025, it did not come pre-wired even though Hyundai's website shows it is. I ended up installing the Tekonsha ZCI #119251 because you don't cut into the factory wires, I also installed the Curt Hitch 13485. Everything fit and worked perfect.

 

fenderman - nice install. Where did you get the Hyundai hitch cover? I brought home my 2025 Tucson Sel last week and want to get a hitch on before next fishing season. I was sought of waiting to see if anyone developed a plug and play wiring harness.

Did you self install or have it installed? I saw some videos where a power wire had to be run to the battery or fuse box, was this your case? What panels had to be removed for the taillight wiring. Appreciate your help.