Eric cova

am sorry guys i was wrong .!!!!!! i tested my car for two days straight on high speed road and i found the problem still present .after all what they done for two weeks long :-( i just took it back to the "dealer " and they told me they ganna balance ties again lets see what they can do ?? i know on thing that the company all they do is give customers "Tylenol " to stay silent .what a shame

i encourage every one to do it cuz it will detached sooner or later and to force the company to realize it's fault >

OK , hi every one . UPDATE...... I just got a call from my dealer to try my car after they change the propeller shaft. and resealed the roof bows . it took so long cuz the part delayed . any way i tried it and i was shocked it's a huge different NO vibration at all i went until 135 km . and for buffeting sound they found one of the three bows is unattached the front one but they did them all , to be honest the sound i think is still there but it's much better 90%. am glad that they could fix some thing finally i will drive without shaking . ​and here i want to say something that i was so nervous wen they told my the procedure for the roof and how they will tear every thing down i expect it ganna be mass but it was the conversely it was so clean and professional. i wish u luck guys .

UPDATE ..... OK that's my story today with my Yukon 2015 with 7000 km.. i went to my dealer told hem that i have vibration / and buffeting sound > they send the engineer to test it and he notes the problem ( good start ) > i shows them the GM document ID :(4204876) IT'S ALSO CALLED #PIT5429 . THEY wounder where i got it ...( from this great site ).they knew that i did change the tiers already and balance them ..so they said they gonna change the propeller shaft immediately without doing ( Pico Oscilloscope )analyzer test . they order it and i wait a call when they get the part ..this was for vibration problem ..but for the buffeting sound they said this is from the roof bows need be resealing.. now am waiting for the part and will keep u update .. but am wondering why they decided to fix it and order parts without testing the propeller shaft !!!! i hope that gonna help >> wish me luck guys >>>

i think GM made the new cars in MacDonald . i hate my Yukon so bad so i use the other car which i don't like too .

hi every one, i wanna share my experience from very far away >Saudi Arabia.. i have 2015 sle Yukon and the first day i Purchased it i notes the same issue y'll have (doming/buffeting noise) and( severe vibration )> i went back to the local dealer how understand nothing and complain about it he told me u need a new ties ,they change them for free under warranty but nothing change at all ,went back again he tray it but he told me its normal and he heard nothing he latterly pretend that he herd nothing and the hole car was checking but he insist . so i google that and fond this great site ( thank god) :-) , i read every thing here and try some things on my car and i found that the only thing that helps me a lot is ( reduce tiers presser ) its minimize the (doming/buffeting noise) and( severe vibration ) to 70% on mined keep in mind the road here are so bad,,,i took it done to 30 psi and i recommend it for u guys to give it a try ... thanks guys and excuse my spelling >>>