Vibration at Highway Speeds

[Shark]

I am familiar with the roadforce balancing process, and understand that the ”pounds” mentioned were not tire pressures.

You mentioned "pressures" in your previous post. What pressures were you referring to? I also (apparently incorrectly) assumed you were referring to tire pressures.

 

[joegr]

I am familiar with the roadforce balancing process, and understand that the ”pounds” mentioned were not tire pressures.
What I still don’t understand is what they were. That there was a >24 pound variation/wobble from one side to another as the tire was rotated?

They have something ( a small wheel I would guess) pressing against the outer surface of the tire as it rotates. It always has some pressure on the tire, they subtract the least pressure that it measures from the most pressure that it measures to get that difference reading. Where ever the tire sticks out more, the pressure will be higher than average, and where ever it is in more, the pressure will be less.

road force balance pressure reading explained - Google Search

 

[Looney100]

They have something ( a small wheel I would guess) pressing against the outer surface of the tire as it rotates. It always has some pressure on the tire, they subtract the least pressure that it measures from the most pressure that it measures to get that difference reading. Where ever the tire sticks out more, the pressure will be higher than average, and where ever it is in more, the pressure will be less

Thank you.

You mentioned "pressures" in your previous post. What pressures were you referring to? I also (apparently incorrectly) assumed you were referring to tire pressures.

The force pressing against the balancing/ measurement device in this case. As joegr described above.

 

[GenesisJohn]

Mine still does this but I am living with it for now.

 

[Filbert]

So today I took my car to the closest Genesis dealer (50 miles away versus 90 miles away where I bought it) as they recently EV Certified.

Provided them with a chronological narrative of all my previous attempts to resolve the issue and all the associated receipts. They said they confirmed the vibration, that the balance of all 4 tires was off by 0.5 ounces, and that they dismounted, re-balanced and rotated the tires.

The vibration is even less than before, but it's still noticeable. Probably 80% gone, although they claim it's completely gone.

Guess I could pressure Genesis to replace the other three tires, but I'm not sure I would be successful as I think most people would say at this point the vibration is minor. Still, after spending 70 grand, I'm disappointed. Want my car to ride like a new car Also have a Kia Niro Electric with 20k miles and OEM Michelins that has had no tire balance issues.

I even considered replacing the tires on my dime. Not inexpensive, about $350-400 each, and there are few all season tires to choose from as this size appears to be rather uncommon.

What I thought was very interesting was that based on my zip code Michelin's website listed two places to buy the same replacement tire...Tire Rack and the local Costco stores. In the 21 inch size to fit the GV60 each of the Costco locations showed them as out of stock and unavailable to order, and Tire Rack website said "Out of Stock, on backorder, manufacturer does not have an expected due date at this time". Wonder what the story with that is.

 

[Artie Shane]

New GV60 Advanced, and on my second highway ride I noticed the vibration at 68 mph. It increases in intensity through about 74 mph. After that, the vibration seems to increase with frequency, not intensity through about 80 mph. At that point, it becomes fast enough to kind of smooth out. It's not a steering wheel, but a seat shimmy... which would seem to indicate rear wheels more than front. It has the symptoms of imbalanced wheels.

Before I noticed the vibration, it exhibited a buffeting-like sound... as if a rear window was open.

I'm bringing it back to the dealership towards the end of the month.
For a 'Luxury' vehicle, this is disconcerting.

Has anyone actually had the issue completely resolved?

 

[Artie Shane]

New GV60 Advanced, and on my second highway ride I noticed the vibration at 68 mph. It increases in intensity through about 74 mph. After that, the vibration seems to increase with frequency, not intensity through about 80 mph. At that point, it becomes fast enough to kind of smooth out. It's not a steering wheel, but a seat shimmy... which would seem to indicate rear wheels more than front. It has the symptoms of imbalanced wheels.

Before I noticed the vibration, it exhibited a buffeting-like sound... as if a rear window was open.

I'm bringing it back to the dealership towards the end of the month.
For a 'Luxury' vehicle, this is disconcerting.

Has anyone actually had the issue completely resolved?

I got back from my hour-long ride from the dealer service, where they say that they re-balanced all four tires. The mechanic says it's better than when I brought it in. Right...

I can tell that they removed the tires (and obviously put them back on) by the smudges, handprints, etc. The balance weights seem to be the same as before I brought it in.

The only thing the mechanic seemed to do was grease-up the interior. I was not pleased. They apologized and cleaned it. But a dealer should never turn a car back to its owner in this condition, and I should not have had to point this out to them. My Audi's were spotless when returned to me.

And it still vibrates.

 

[Artie Shane]

I contacted the Service Manager to complain about the inability of the mechanic and the way it was returned to me... Crickets.
Anyone have success by contacting corporate or concierge?
Any suggestions? Thanks

 

[Looney100]

I've found the Canadian head office to be helpful.

 

[Artie Shane]

I've found the Canadian head office to be helpful.

Thanks... I'm in the US. Any idea on how to contact someone? I'm a bit of a luddite.

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[Artie Shane]

I got back from my hour-long ride from the dealer service, where they say that they re-balanced all four tires. The mechanic says it's better than when I brought it in. Right...

I can tell that they removed the tires (and obviously put them back on) by the smudges, handprints, etc. The balance weights seem to be the same as before I brought it in.

The only thing the mechanic seemed to do was grease-up the interior. I was not pleased. They apologized and cleaned it. But a dealer should never turn a car back to its owner in this condition, and I should not have had to point this out to them. My Audi's were spotless when returned to me.

And it still vibrates.

Got a call today from a very kind person at National Consumer Affairs, Genesis Motor America. She was a good listener and seemed to truly understand the issue... if not technically/mechanically, certainly that the dealer did not take care of the situation. She will be contacting another dealer in my area to see if they can address the vibration issue. We'll see where it goes and how long it takes.

 

[liquidshadowfox]

Got a call today from a very kind person at National Consumer Affairs, Genesis Motor America. She was a good listener and seemed to truly understand the issue... if not technically/mechanically, certainly that the dealer did not take care of the situation. She will be contacting another dealer in my area to see if they can address the vibration issue. We'll see where it goes and how long it takes.

That's good to hear, keep us updated

 

[Dan H]

My Performance seems to have the same vibration issues others have described above. Dealer has road force balanced the tires twice and is now saying they test drove the car at highway speeds and everything is normal, but there's no way a brand new car (whether it be $20k or $70k) should have a wheel shimmy like this.

I've had nothing but excellent experiences with Michelin tires in the past, but I do wonder if the issue is the specific Michelin tires being used here. I see two months ago someone above mentioned these specific tires were out of stock with no estimated in stock date at both Costco and Tire Rack, and as of today that situation has not changed. Does that mean perhaps Michelin made a bad batch of tires or they are having issues manufacturing these tires with the acoustic foam?

 

[joegr]

... Does that mean perhaps Michelin made a bad batch of tires or they are having issues manufacturing these tires with the acoustic foam?

This definitely has happened in the past. I bought four tires from one such bad batch, and three of the four had a visible distortion and wobbled if you just rolled them on a flat surface after taking them off the car.
That said, most of my Michelin experiences have been good and they are one of my preferred tire brands.

 

[Filbert]

When the dealer replaced one of my 4 tires there was a definite improvement. Wish they would just replace the other 3.

 

[Artie Shane]

My Performance seems to have the same vibration issues others have described above. Dealer has road force balanced the tires twice and is now saying they test drove the car at highway speeds and everything is normal, but there's no way a brand new car (whether it be $20k or $70k) should have a wheel shimmy like this.

I've had nothing but excellent experiences with Michelin tires in the past, but I do wonder if the issue is the specific Michelin tires being used here. I see two months ago someone above mentioned these specific tires were out of stock with no estimated in stock date at both Costco and Tire Rack, and as of today that situation has not changed. Does that mean perhaps Michelin made a bad batch of tires or they are having issues manufacturing these tires with the acoustic foam?

I've read mostly very good reviews of these tires, with one vibration issue (that I've seen) mentioned on TireRack.com. One issue mentioned in Amazon reviews. I like the tires until I get to 68 MPH, then I hate the whole car.

I would be very happy to have this issue be the tires. While I would hate to replace brand new tires at my expense (Genesis should do this), it would be better than some aberrant mechanical issue that would have it in the shop for months... assuming it could actually be fixed.
Also... as the steering wheel isn't vibrating (much), and it's mostly seat-of-the-pants vibration, it appears to be only in the rear. Odd, but maybe a good sign?

 

[wolverine]

I have the same issue and my dealer claims the car is "operating as designed". So frustrated that I really would consider paying for new tires out of my own pocket. Seems obvious the problem is the tires, but what if it turns out to be an issue with the rear drive motor or something related? I would be out about $1500.

 

[Artie Shane]

I have the same issue and my dealer claims the car is "operating as designed". So frustrated that I really would consider paying for new tires out of my own pocket. Seems obvious the problem is the tires, but what if it turns out to be an issue with the rear drive motor or something related? I would be out about $1500.

Exactly... which is why Genesis should put 4 new tires (maybe a different brand) on my car first, and let me see if the problem still exists (since I can't count on their mechanics to detect the issue). If it does... then I get a loaner for the months it will take to find and correct whatever mechanical issue it would be.

 

[EdP]

I have the same issue and my dealer claims the car is "operating as designed". So frustrated that I really would consider paying for new tires out of my own pocket. Seems obvious the problem is the tires, but what if it turns out to be an issue with the rear drive motor or something related? I would be out about $1500.

Tires are usually covered by the tire company, not the car maker. Have you asked a good tire shop to check them out?

 

[Artie Shane]

Tires are usually covered by the tire company, not the car maker. Have you asked a good tire shop to check them out?

Genesis should cover the car top to bottom. They should deal with Michelin, not the consumer of a brand new car. If they can't or wont... then other action will be taken. I wouldn't want another company (tire shop, whatever) to touch the car until I've expired all avenues with Genesis. I wouldn't want them pointing fingers elsewhere.
Genesis is the responsible party at this point.