Vibration when drivinb

[jchar27]

When first starting out, and getting up to speed, there is a vibration in the car in the 50-60mph range. After 5-10 minutes of driving, the vibration goes away. It seems like a drivetrain vibration as opposed to a tire type vibration. Not even sure how to explain it, but it goes away so I'm not sure taking it to dealer would lead to any results.

Anyone have this issue? Was it resolved?

 

[homeofstone]

It may be the tires having to warm up.
Do you have performance tires that have nylon in their construction?

 

[jchar27]

It may be the tires having to warm up.
Do you have performance tires that have nylon in their construction?

I have the stock tires that come on the 2015 3.8 AWD Sedan. I don't think they are performance tires.

 

[Alwaysforward]

It is the tires. There is numerous discussions on here about it. Do a search. It is cause by flat spotting when the tires sit. Even when just sitting over night, I have the same issue. It goes away after a few miles. It is even noted on Tirerack.com.

Some balancing will help the issue but will not correct it completely. Only fix would be to find a tire that does not have the Nylon make up. I think one poster is pending feedback from Hyundai.

Edit: Link to other post noted above:

http://genesisowners.com/hyundai-genesis-forum/showthread.php?t=14774&page=2

 

[Chris L]

Thanks. This was happening to me too. Good to know that it's a known issue.

 

[NotMyMainAccount]

Hi jchar27,
Welcome to the forums! Take a look at my PSA regarding balancing the Hankook tires:
http://genesisowners.com/hyundai-genesis-forum/showthread.php?t=14856

Long story short the tires must be balanced when warmed up and then immediately lifted. If there is no vibration whatsoever after 5-10 minutes as you seem to indicate, this is normal for tires that are purely wrapped with nylon instead of a blend or another material entirely.

I don't think it's normal at all for a $50k luxury sedan to flatspot in as little as a few hours. I encourage you to give Hyundai USA at 800-633-5151 to report the issue. The other thread that Alwaysforward posted has more about my experience doing that. Again the TL;DR version is: the front line rep will tell you that you must contact Hankook as there is no warranty through Hyundai on the tires. Insist that even a new set would do the exact same thing (because it would,) and that you're debating Hyundai's choice. If they give you trouble still, they seem to be appropriately sensitive to comments regarding Hyundai caring about their Genesis customers.

Between my dealer's service manager being in touch with Hyundai and my experiences with a regional rep, it's fair to say Hyundai is aware of the problem but don't know how they're going to fix it yet. For all I know they're just blowing me off, so personally I think it'd be really helpful if everyone with the issue could call in and start a case.

I've never had or even heard of a vehicle's tires flatspotting in a few hours or overnight, I think it's complete crap even on an economy car. Which a Genesis is a LONG ways from. If Hyundai wants to compete with the big boys they've got to nail stuff like this.

 

[homeofstone]

Hi jchar27,
Welcome to the forums! Take a look at my PSA regarding balancing the Hankook tires:
http://genesisowners.com/hyundai-genesis-forum/showthread.php?t=14856

Long story short the tires must be balanced when warmed up and then immediately lifted. If there is no vibration whatsoever after 5-10 minutes as you seem to indicate, this is normal for tires that are purely wrapped with nylon instead of a blend or another material entirely.

I don't think it's normal at all for a $50k luxury sedan to flatspot in as little as a few hours. I encourage you to give Hyundai USA at 800-633-5151 to report the issue. The other thread that Alwaysforward posted has more about my experience doing that. Again the TL;DR version is: the front line rep will tell you that you must contact Hankook as there is no warranty through Hyundai on the tires. Insist that even a new set would do the exact same thing (because it would,) and that you're debating Hyundai's choice. If they give you trouble still, they seem to be appropriately sensitive to comments regarding Hyundai caring about their Genesis customers.

Between my dealer's service manager being in touch with Hyundai and my experiences with a regional rep, it's fair to say Hyundai is aware of the problem but don't know how they're going to fix it yet. For all I know they're just blowing me off, so personally I think it'd be really helpful if everyone with the issue could call in and start a case.

I've never had or even heard of a vehicle's tires flatspotting in a few hours or overnight, I think it's complete crap even on an economy car. Which a Genesis is a LONG ways from. If Hyundai wants to compete with the big boys they've got to nail stuff like this.

Ambient temperature and inflation pressure also have an effect on how fast a tire will flat spot from sitting still.

 

[NotMyMainAccount]

Ambient temperature and inflation pressure also have an effect on how fast a tire will flat spot from sitting still.

Official Hyundai pressures are listed inside the driver's side door jamb close to the B pillar. My car's specs are for 33psi and I can't imagine that'd change too much even for the fatter rear tires on the 5.0. Flatspotting is terrible at 1psi under at 20F, as a test I went several psi over the recommended value (but still well within the tire's specs even after heating up 5psi.) Now it's 50-60F and I still get flatspotting, although it's very minimal compared to lower temperatures and pressures.

It still happens in as little as two hours at 35psi cold at ~55F. This car is so damned awesome I cannot honestly say it was completely ruined it for me, but having my car go thump-thump-thump for the first 3-10mi of every trip sure does put a damper on things.

I love this car but if Hyundai does not appropriately deal with this issue it will be my last.

 

[Gunkk]

So dump the crap tires and go buy a set of pilot super sports already!

 

[homeofstone]

So dump the crap tires and go buy a set of pilot super sports already!

Or Bridgestone Turanza Serenity plus

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[Bernster]

I also have a had a request into Hyuundai to remedy this problem for 2 weeks. Service manager is still pushing them. This is a widespread problem as the manager indicated 5 other Genesis in inventory had the same problem.

 

[jchar27]

Thanks for the replies. Seems to me Hyundai should be buying some of us new tires. Got a call in to my dealer to start. We'll see where it goes from there. I'm sure I'll be calling national soon.

 

[homeofstone]

Thanks for the replies. Seems to me Hyundai should be buying some of us new tires. Got a call in to my dealer to start. We'll see where it goes from there. I'm sure I'll be calling national soon.

The thump from nylon in tires for the first few miles has never bothered me since nylon is a strong material for higher speeds. I have had cars since 1968 with tires that flat spot. It is not a defect in the tire or the car.


see the link information from tire rack. http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=42

 

[bnajack]

doesn't bother me as long as they smoothe out after a few miles. All the cars I've owned in the past 20 years do this.