With all windows up, vehicle exhibits a buffeting / pressure sensation that can be felt predominately in the ears between 30 and 50 MPH. Similar to when only the rear passenger windows are down in many vehicles. I second the fact that after any amount of time at these sustained speeds it begins to cause dizziness, ear pain, and headaches. Gm forums are flooded with complaints. This vehicle obviously was manufactured with a significant, known flaw that they cannot currently fix. This should absolutely be a safety issue strictly based upon the physical symptoms onset by the feeling within the vehicle.
2015 GMC Yukon XL body complaints
Page 2 of 2: complaints 11 to 12 of 12, newest first, as owners wrote them.
Vehicle exhibits a "buffetting" or pressure sensation that can be felt primarily in the ears between 40 and 50 MPH. After any amount of time at these sustained speeds it begins to cause dizziness, ear pain, and headaches. This condition was confirmed by the dealer with 3 separate drivers including a tech, the sales manager, and the owner. Gm has a technical pi issued, as the problem is apparently relatively common in these vehicles. Suggested repairs include re-bonding the roof sheet metal to the frame, repair/replacement of the rear differential, replacement of the propshaft, repair/replacement of wheels and tires, removal and "relaxing" of the exhaust system, and more. None of which appears to solve the issue. A quick internet search turned up dozens of cases with this issue in just one website. Gm has manufactured a vehicle with a significant, known flaw that they cannot currently fix. This flaw should be considered a safety issue strictly based upon the physical symptoms triggered by the sensation within the vehicle.
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