it's pretty easy to do if you aren't afraid of damned plastic clips/covers.

http://www.hsguide.net/repair_procedures-601.html

 

dunno about your car, but on the elantra it was easy. there are a couple of pieces to remove, one is the a pillar, instructions say to cut one of the clips, i didnt, i just routed the wire around the airbag. then i had to pull the lower dash cover, really easy, couple of screws, and it pops off. T tap quick connects, and it is wired. the mirror assembly is a torx, i forget which, and the old one easily comes off, new one easy-on. if you get the kit, it has all the parts needed, and excellent step by step instructions. ebay usually has them for cheap

 

On my 2017 it was a 5 minute job.

1. Snap off the plastic trim piece covering the mirror mounting screw
2. unplug (1 plug under the trim at the mirror)
3. loosen the 1 set screw (I believe it was a torx not allen)
4. slide off mirror
5. Repeat to install.
6. Calibrate (follow instructions, I think it was drive the car in a couple circles, I did not do that and it took about a mile of normal driving to calibrate the compass)

I got a new in box OEM Hyundai Homelink Auto Dimming Mirror off e bay for $89. They are always under $ 150. I think Hyundaioemparts.com has them for $135, new in box. Dont pay the Dealer price of almost $ 400. I dont know if the 2018 is the same as the 2015-2017 but they are still LF model so this is the mirror I got still available on ebay $95 https://www.ebay.com/itm/11-17-HYUN...3Q062-ADU00/202324137260?epid=1122199466&hash=item2f1b75552c:g:JuEAAOSwZ5Ra6VYp

The thread link I have at the end is about it there were 2 parts numbers that were the same mirror and worked on all LF, one had a extra wire kit in it for the YF and the other that specified LF did not have the extra wire kit. Both were the same mirror and on the LF are direct plug and play. Bluelink, SOS openers all work, Compass and auto dim

https://www.hyundai-forums.com/lf-2015-sonata-i45/568506-2017-upgraded-rear-view-mirror.html

 

As @xaran said, 5 minute job tops.
It was completely plug and play.
When you calibrate the compass just make sure to put the compass in the correct zone for your area.
And if you program the Homelink buttons just know that they will work even with the car completely shut off.

 

Not trying to speak for the OP but I think you guys are talking about two different things.

I think OP is asking about changing the regular mirror to an ECM. I doubt a 5 minute job. The poster that talked about the Elantra sounds more like what would be involved to swap out a regular mirror for an ECM.

I think what you guys are saying for a 5 minute job is replacing an ECM with another ECM.

My apologies if I am wrong.

 

I did replaced mine in a 2014 YF and I needed to tap into 2-wires behind the sunglasses holder. It sounds like the LF connector has everything you need already there and no need to tap into additional wiring. Again, as others have posted, they cannot confirm the 2018, however since the 2018 was more of an appearance upgrade, it is likely to have similar wiring to the 2015-2017s.

 

Been waiting for about 6 months for some brave soul to buy this and give it a shot on an '18. My '18 Sport seems to sit in the perfect position for headlights to shine straight into my eyes through the rear view.

Seems i may have to take the $95 gamble.

 

On the link below from EBay for the mirror they accept returns so your only out the return shipping,it is a small box so it could be returned USPS Flat rate ad will cost you less than $12 if it does not work

https://www.ebay.com/itm/11-17-HYUN...3Q062-ADU00/202324137260?epid=1122199466&hash=item2f1b75552c:g:JuEAAOSwZ5Ra6VYp

 

Don't confuse the auto-dimming mirror with the Homelink mirror.



I had a Homelink mirror installed by the dealer on my Kona SEL. Even the Limited only had the auto-dimming mirror.

 

The mirror I installed in my LF had both auto dimming and Homelink, along with the compass.
It was completely plug and play.
The factory mirror was a Bluelink manual dimming mirror.

 

I also had the factory Bluelink and manual dimming. Through another post here somewhere, I found and posted that I also got a homelink/bluelink and auto dimming on my 16 SE. Very quick and easy install.

 

The post I had above with the EBay link is for a Hyundai OEM auto dimming with Homelink and Blulelink,SOS,Directions buttons. It is the same mirror listed on accessories on Hyundai site when you choose build except if you get it from Hyundai for $ 471 and from ebay dealers or on line dealers it is $ 185 down to $ 85.

Ive attached the link from Hyundai accessories

https://ca106.hyundaiaccessories.com/accessories/2017/sonata/

available now on Ebay
https://www.ebay.com/itm/11-17-HYUN.../202324137260?epid=1122199466&hash=item2f1b75552c:g:JuEAAOSwZ5Ra6VYp&rmvSB=true

 

I did not want the Homelink but that is the only way the factory mirrors come so I had to get it.
Just never programmed the buttons since the Homelink function works even when the car is off.



Got it guys. Thanks. My SF is a 2011 so it did not have Bluelink. I live in condo with no garage so I don't need Homelink ( I know it comes with it and I am fine with that)

Will want the exact Hyundai mirror like you would get from the dealer so thanks Xaran

 

Mirrors on eBay are the exact OEM mirrors and even come in an OEM box if you buy new.

 

This is what I was asking about. Thanks

 

Just bought one on amazon for my 2018 sport 2.0t. Will report back on results once I have it installed.


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I can confirm that this does fit, plug n play on the 2018 sonata. At least on mine with the blue link manual dimming mirror installed from factory. Loving this mirror so far!

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Its good to know it fits all LF 2015-2018!

Looks like you did the same as I did take the picture immediately after install and the compass is still in calibrating "C" instead to E-W-N-S etc for direction.

What was the Amazon price? They are listed on Ebay new in box for $80-150 right now, when I got mine it was $89 shipped and is the exact same Hyundai Factory part as they list for $475

 

Nice.

 

I got the same 3Q blah blah model mentioned above. Went with an ebay purchase, $100 for the mirror + $10 for shipping. Ordered on Thursday, got it Monday, installed this evening. Really does take about five minutes. Plug and play on my 15 Sport. Comes with legit looking Hyundai paperwork and whatnot.

I did not have to calibrate the compass. I was going down the street to a nearby school to drive in circles when I noticed the compass was working. All I had to do was adjust it to my zone.

It's a nice little dress up for the car. As an aside, I can't believe I had a torx bit, lol.

 

I never had to do the circles thing either to calibrate the compass, just took it out and drove it and within a couple miles was correct.

 

Mine adjusted by itself but I put it in calibration mode and drove in circles in a large parking lot just to be sure.

 

So the Elantra model of the mirror is F3062-ADU002 which is expensive on eBay.


What is stopping me from sticking a Sonata 3Q062-ADU00 inside it instead?


Hyundai Canada told me I couldn't replace the non-dimming mirror even with the auto-dimming Elantra version. It doesn't make any sense.

 

Main thing I would check before you try and put a Sonata mirror in an Elantra is the overall width of the mirrors listed for each car.
The Sonata mirror may be wider than the Elantra mirror and that may interfere with your sun visors when you fold them down.

 

Hmm good point. Someone advised me it's likely not as easy as plug in and play with the 2017-2018 Elantras. Sucks if that's the case but I'll find someone to do it professionally :|

 

If I see my step-son today I will measure the mirror in his 2018 Elantra Sport.
Then I'll measure the mirror in our Sonata and post them here.