I'm going to subscribe to this thread for future reference in case I need something to show the dealer if they give me trouble...mine flashes the high beams when I use the signals. People in front of me really dislike it.
I am happy to have found this thread. I have a 2008 Hyundai Veracruz. I realize this is a genesis forum, but it sounds like this electrical issue is on Hyundais in general. I have reported a very similar problem to the dealership several times over the past couple of years. I just got my car back for another fix (steering wheel wouldn't adjust) and of course, they couldn't repeat the problem of the electrical problem- I mention it each time I drop it off for warranty covered repairs. They also gave me the impression that they've never heard of this problem. But maybe I reported the problem incorrectly. I previously told Hyundai that my dash board lights would brighten when I used the turn signal. I think the dash board lights were brightening because my headlights were cutting off for a second and when your headlights are off, the dash lights are brighter for daytime use.
Last night, they went out for a few seconds. I was in traffic and on a well-lit road, but I could see I had no headlights on the car in front of me. I called the dealership as this was happening and told the service representative that my lights just went out. So I told him it used to be the dash lights brightened, but now that I got the car back, the headlights were impacted. So I think it's the same problem all along, but now that it's dark earlier, I can see my headlights going out in the reflection of my vehicle on the car in front of me. And again, last night, the guy I spoke to said he was not aware of any electrical problems related to the turn signal and headlights.
I just tried to repeat the problem and my headlights will not flicker. Does the car need to be moving? Thanks.
I reported the issue to NHTSA.
So, years later....We have to get Hyundai to acknowledge this as a manufacturing defect. I encourage everyone who has had this problem to please call Hyundai of North America customer service and register a complaint. They are very nice about it. When I did so, I was told this was the first time they'd heard of this issue. Also log on to the NHTSA web site and file an incident report there. Takes about 3 minutes.
TSB #20-BE-009H extends the warranty to 15 years, unlimited miles for 2015/2016 Genesis. Maybe there is sometime similar for 2013?I was experiencing the same issue several years ago when my 2013 Genesis was still under warranty. The dealership replaced the multifunction switch which is what Hyundai calls the headlight switch. Anyways, fast forward to today and guess what. The headlight flickering is back when I activate the turn signals. Of course the car is out of warranty. I have filed a complaint with NHSTA and will see what happens. I wouldn't mind replacing the switch myself, its only a couple hundred bucks online. But I don't know if replacing the switch will resolve the problem.