Denali 22” Tire Vibration @ Highway speed

[SFS-PM]

Okay so this thread may already have been discussed, but I couldn’t find it. 
‘19  Denali 1500

22” tires 

When I picked the truck up I noticed It shaking and low speed,  sales person said it’ll smooth out.  
In the subsequent week other issues arose so I had it back into the dealer b4 it had 400 miles on odometer. I stated that  I had vibe- at low speed and again at highway speed.....Response - cant do anything for it till 500 miles on o-meter....Are you kidding me $67K and I gotta put up with it shaking and get ribbed by passengers,  all bc it doesn’t have 500 miles on it!
Before leaving that day The tires were checked and road force balanced. 

10 miles on the road to home, it starts again from about 39 to 50 mph low frequency vibration from  62 to 73 mph ...“bad” vibration. Fast Forward 

2K on odometer ( 3- weeks after pickup) back to dealer.. stated problem again.. tech/service advisor ..called me after diagnosis...yep your tires are out of balance and ooh yeah they are  are outta-round too . What! 
yeah we ordered you a new set. 
50 miles on new tires no problems thus far.

Anybody else had this issue? 

Edited February 13, 2020 by SFS-PM
Auto correct changed words

[CaptKev]

I had a similar problem the first week, same truck with 22's. I brought it back to the dealer with a couple hundred miles on it. They found 1 tire out of round and road forced the rest. After they swapped out the tire and balanced it's been great. I will say that it does smooth out over time also.

 

I went and bought new OEM 20" wheels for snow tires and went through 2 different sets of snows and could not get them to stop shaking over 60mph. Went back 5 different times for different types of balance techniques and in the end took them off and put the stock 22's back on!

[SFS-PM]

Felt vibe this morning @ 60 mph plus. I’m hoping it follows your example.  My experience with set #1 was it got worse. They were so bad at the end an empty water bottle was almost hopping out of the cup holder! 
Fortunately I don’t have to change to snow tires LOL down here when three flakes stick, we buy out all the milk and bread, then shut the town down! 

[Zach-91]

I'm still going through the same thing. 22's as well. Taking it back to the dealer for the 4th time next week and am hoping they come to the same solution just so I can be done with the shakes.  

[bdsilverado]

They told me that my 17 was going to smooth out as well over time. You know what happens over time?! It gets worse and you have no warranty eventually.  I would try to get new rubber personally. I had the service guy say trucks arent going to drive smooth like cars. You can f off because my 14 and now 20 Silverado have been smooth as glass on a good road since mile 1.  You shouldn't have to worry about shakes in a 50k truck

[Tepree]

Remember if the tires are not the problem it could be an out of balance drive shaft.  My older 2003 has a slight but noticeable vibration exactly between 40 - 42 mph.  Been that way for many years, and many tires - drive shaft.

[Zach-91]

Dropped mine off yesterday. Service manager seems hopeful that gm will approve new tires. 

[rarnoldsb]

I also have 22 and get a vibration when I run over small stuff/holes (CAl roads are crap) I switched to sport mod and it helped. Its like the shocks aren't  working correctly.

[Dnt]

I have bought brand new 14 SLT (20) had some issues with it and went to Michelin tires and it was good / new 2016 Denali (20) no issues / New 2017 Denali (20) no issues  / New 2018 Denali (20) no issues and now this 2019 Denali with 22in tire. This 19 with the 22" tires is a shaker between 68 and 74. Had it at the dealer yesterday for a recall. It has 500 miles on it and was told that they could not balance the tires or do anything to the tires till it had 1000 miles on it? Stopped by my local discount tire and can purchase a set of Michelin Premier A/S  for around 900 with 75 dollar credit for the Bridgestones that are on there. I am not sure that the dealer has the equipment or skill set to solve the problem. If I knew that this was going to be a continuing issue I might just buy a set of Michelin Premier A/S tires and move on. Anyone swapped to from the factory Bridgestone's to Michelin Premier A/S tires to see if that is a fix?  

Edited February 20, 2020 by Dnt

[Dnt]

Update: Called another local dealer and stopped by their shop this afternoon they road force balanced all the tires. They found one tire they could not get into what they called spec. Asked me to drive it and see how it does. Well of course it still shakes, just not as bad as before. pic of service sheet above. I am not sure what machine they use but they said that all tires started out at over 0.080 which apparently is way out. The RR is 0.052 and man you can feel it. i guess I will call them next week and see if they will order me a replacement tire, maybe that will smooth this $68,454.00 MSRP baby out a bit. A man could get his feelings bruised paying that much cash for something that shakes worse than his ole beater ride 2009 Tahoe with over 220k miles / 3" lift / aftermarket wheels and half worn out oversize Nitto Grappler tires LOL.     

Edited February 22, 2020 by Dnt
forgot to add pic

[Dnt]

Change of strategy I called Bridgestone Tire warranty department directly, they said to take it by a local store. I have an appointment set for next Saturday morning at 7:00 a.m.  

Hoping that if the tires are bad they can swap them out right then and do a proper road force balance without me having to go back through the "middle man" dealership.  

Anyone ever tried the direct route with the tire manufacturer rep and had any success?    

[Zach-91]

Mines been at the dealer since tuesday. Gm told them to read force balance again and the numbers were all in spec. they drove it and it still did it. Gm then had them move the tires to different wheels to try and offset the vibration. Numbers still in spec after road force balancing again and the numbers got even better. Asked me to come in for a test drive and the vibration is worse at 67-70. Waiting for them to suggest the next fix. Since the vibration intensity is changing I assume they will suggest replacing tires. 

[Dnt]

Zach-91 It would be great to know what your dealership had on the road force numbers, did they let you know the actual numbers when they completed the re-balance work? 

My suspicion is that GM may have set a minimum road force spec number that still leaves the vehicle shaking like a rag doll. Looking around at some articles online it looks like we may need road force numbers in the mid to low teens to actually get a non-shake vehicle?? 

I guess all manufacturers set these spec guidelines for the dealers. My guess is that the spec is probably designed to control the manufacturers warranty spend.

 

 

 

[Zach-91]

They told me when I asked but did not give me a work order since the job isn't complete. When the 1st dealership I went to did it they gave me the numbers and i had a 6, 13, 15, & 16 and things were pretty good for a while but I could still feel a slight shimmy sometimes. when this 2nd dealer got involved they told me I had 2 around 32 and the other 2 were below 20 before they balanced them. After doing the swapping they were all at or below 22 but did not give me the exact numbers. He had them written on a paper so I could see them but didn't take a picture or get a copy. Pretty sure 2 were at 22 and the others were the low teens. 

 

He told me that GM said anything under 30 is in spec. But when I drove it after everything being under 22 it felt worse than when I took it in when they told me a couple were over 30. I am guessing the 22's are more finicky and prone to transferring the vibration. 

 

Seeing that others have much higher numbers tells me it must feel like riding in a shopping cart with a flat wheel..

[hotrodz37]

Road force balancing measures radial runout which measures the roundness of the tire. LT tires should be under 30 I believe and our trucks under 20 or 15 if I’m not mistaken.

 

The road force machine doesn’t measure lateral runout though, so while the tire May not have any high spots in it on the machine, it might wobble side to side which the machine will not catch.

 

I had a set of nitto terra grapplers on my old truck that all road forced under 14 but on the machine you could visibly see the side to side wobble with the tread not tracking straight. And boy did the truck shake.

 

 

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