NEW Hyundai Accent has dashboard light flicker

This is what is called a “sample defect”. Occurs on specific examples of all makes and models. Sounds like it occurred on yours, a bit of bad luck. But not the end of the world. Goes with new car ownership is all.

Something like this could be caused by something simple like a defective battery or battery connections or alternator problem. The dealership should have not problem checking the battery and charging system, the likely have an automated machine to do all that. There are some published technical service bulletins (tsbs) about the battery on this car, there may be something unique in the design of that battery, so you might ask if any of those are pertinent to your problem. The only recall I see applies only to California cars, some kind of emissions testing issue. I don’t see anything specific to the dashboard. My first guess, it’s a problem with the battery or charging system, after that a loose connector under the dash, third most likely is a defective dash module, which the dealership would have to replace under warranty.

There’s not a lot you can do to prevent this kind of thing, other than choosing a make/model/year of vehicle that the reliability statistics say is better reliability that most. Did you check with Consumer’s Reports for what they said about the reliability of this car? It seems like Hyundai’s get pretty good reports here, but Kia’s are maybe a little better on the reliability issue. For econoboxes, Toyotas seem to get the best reliability from reports we see here. At least for the long term, 10+ years. After that, probably Honda.

Yep, that hard-to-find solution is what I am afraid of. It is my first new car. I am distrustful of any and all mechanics, since I bought the car with the best warranty because I have had so many bad mechanics that have taken me for a ride in the past. What everyone is saying is fair, and I did not know that new cars can be buggy. Can’t blame me for being cautious, but I can def. rest a little easier since so many on the forum have said that new cars can have things that come up. Disappointing, but if it is not unheard of, then I can chill while doing all I can to record what is happening in case there is a bigger problem down the road.

I think I read something about a battery problem causing this, so perhaps (hopefully) that is all it was. Thank you.

2016 Hyundai Accent
2016 and 2017 Hyundais were being sold when you bought your car. Seeing that this particular car is a 2016 model-year and was purchased 2 months ago, it’s possible that it sat in inventory for a while. Although we can’t know for sure that this is a battery related problem, that situation can be problematic for a car’s battery.

Not blaming anybody, but sometime a battery can become discharged by sitting for a while and necessitates recharging. That is tough on a battery. Almost every car manufacturer is aware of this and has some procedures in place for dealers. Hyundai is no exception.

Here’s a TSB (technical service bulletin) written for Hyundai New Car Departments and technicians on properly checking and maintaining batteries of cars in inventory.

It includes an admonition pertaining to timely inspecting and carefully maintaining the batteries or risking the loss of warranty coverage on them. (Note: In my opinion if the dealer loses warranty coverage on the battery then they would be obligated to warrant the battery to you. It shouldn’t be your problem).

Wow. Thank you. I knew this site would be helpful. In all honesty, I saw the sales ppl jump start the battery when I was test driving it. I did not make a fuss because I understand that the car probably was sitting for a long time and that is what happens to cars when they sit. So what do I do now?

you make the fuss you should have made before you bought the car. Take it to the dealer you bought it at, explain what is happening, explain that you watched them jump start this very car off the lot, and have them do a complete inspection- including load testing the battery and checking the cables for cleanliness/tightness.

Your car shouldn’t be having these issues, but things happen- even with new cars.


Piggybacking on what @eddo has suggested, I’d want a check on all of the car’s charging system (including alternator).

That’s not the best way to charge a dead battery… jumping it (to crank the starter) and then putting all the load on the car’s charging system and it expect it to charge the battery(that system is intended to maintain a charged battery, not charge a dead battery)… besides there’s too good a chance that a careless or inexperience person, helping out on the lot, can cause damage to the electrical system.

It would be better to charge the car’s battery with an outside (outside of the car’s onboard system) charger and then starting the car.

Of course, what’s better than that is maintain the batteries in accordance with what Hyundai has outlined in a rather detailed TSB (linked in a post above) that was sent to the dealers!

If you were talking to me in reference to the link, you’re welcome.

You can do more “googling” on this subject, but here’s a blurb from a battery manufacturer (Optima).
"Tips & Support Posted: Aug 01, 2012
Fact: Alternators are not designed to charge dead batteries"

The thing is, people do this all the time… and get it away with it most of the time, but not all of the time. That’s why jump starting a car with a dead battery and then letting the car charge it is not recommended!

Here’s some more from Interstate Batteries…
Look at reason A ( #1) under "What are the most common causes of premature battery failures?"
"Deep discharges (leaving your lights on)"
(My note: Going dead while parked would be a deep discharge or fairly deep discharge)

I just purchased a 2017 Accent se model and the same thing happened to me…Did you every find out what the issue was?

My wife bought a 2017 Accent in 2018 and this just happened to her. She was driving at the speed limit on a 90kmh hwy yesterday afternoon (Monday) and all the warning lights came on for a few seconds then went off. The fasten seat belt light stayed on a few seconds longer than the others. We have an appointment with the dealership at 8am Thursday morning. I will let them know about this thread and follow up here with the results of the visit.

You can do that if you want to . But I would not , I see that as an insult to the shop and mechanics . I just describe to symptom’s as clear as I can and let them do their job.

My reasoning was, if they know it’s a known issue, it may be documented somewhere in their system. It is under warranty but I’m taking unpaid time off work to deal with this so the quicker I’m in and out the better.

Electrical diagnoses isn’t going to be quick, could take all day.

Looks like I’ve been in this discussion for 2 -1/2 years! Gives entirely new meaning to Accent lighting! :grin:

Exactly. Unless they’ve seen it before or it’s a known defect. Chances are, if three of us have reported the exact same issue on this thread alone, it’s happened to others. Also, the repair itself could be time consuming, even if they know what to do. I will let you all know the outcome after my visit on Thursday.

I got my first Hyundai ( a Sonata) in 2017. It had one complex issue in the time I had it. Hyundai honored the warranty perfectly in all respects, and even though the repair took weeks, rented a car for me the entire time. I was happy enough with the dealer and the car to lease another one this year. If you don’t trust your dealer to provide proper warranty service, take it to a different Hyundai dealer. If you try to DIY this, you risk voiding your warranty.

Just got home. They scanned the car’s computer and found no codes so they did nothing and told me to call back if it happens again. I am filing the diagnostic report in my car service folder in case it manifests itself again after the warranty has lapsed. They did wash my car though.

If anyone has ever had this issue fixed, I’d be interested in knowing what resolved it in your case.

Frank, this “issue” can be cause by dozen[s] different possible root causes, so it is not very likely that you will find somebody who had it resolved and his fix would apply to you.
This is not an “issue” really, it is a “symptom”, the issue is still unknown as otherwise dealer would happily fix the root cause and get you out of the door.
A bad piece of news here is that since it is intermittent and not easily repeatable, you chances to get it addressed are slim, sorry for this “reality check”.

you triggered me to post my own experience with such intermittent / hard to reproduce issue I have here:

you might want to consider carefully documenting all your interactions and gathering as much info as you can get as you do not know how it turns out to be in the future

2016 Hyundai Tucson AWD and after spending 11,500 in repair costs within 11 months, I now have dash warning lights randomly lighting up all at once while driving. No engine performance issues when it happens. The lights all light up at once and then go out.
I have absolutely loved this vehicle. It’s perfect for my lifestyle and job. BUT I have not appreciated Hyundai’s oil consumption issues that have been terrible. No oil on the dipstick 1500 miles after an oil change. Repetitive issue until the bottom end of motor had to be replaced. Hyundai has a long long list of people the same thing has happened to, or worse, their engines actually blew up. Either way the oil consumption issue has been a nightmare. Now I have warning lights lighting up together for some unknown reason. Good grief.
Why the heck do these manufacturers seem to have to be sued to do the right thing?
I was told to keep my receipts and turn them all in when a class action lawsuit is completed. Seriously?? Sad.