2025 Lexus Gx

My GX550 is vibrating at all speeds. I took my GX550 in for service on [XXX] at Butler Lexus in Union City, GA, because of the vibration in my GX. They did a wheel alignment and a force road wheel balancing but this did not solve the problem. On September 3, 2025 I took my GX550 to Discount Tires in Douglasville, GA, where they took off all the old weight including the new ones that were added by Butler Lexus. I found no improvement as I drove home. I took my GX550 back to Discount Tires, I asked them to check the tires and wheels. I was informed by one of the tech at Discount Tires that the my wheels are marginally out of round and I should let Lexus know to check the suspension. I was told by Butler Lexus service department that Discount Tires was grasping at straws. I spoke with Lexus Corporate September 19, 2025, they informed me that Butler Lexus Service department informed me that my vehicle is suppose to operate with vibrations, that could felt in the steering wheel and seats. I asked for someone from Lexus to come out and inspect the vehicle. At first I was told that Lexus doesn’t do that. Then I was told she would check into it. Also Lexus never addressed the the transmission hard shifts that I reported. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

When accelerating from stop the vehicle has a long hesitation or lag, but allows enough movement in the vehicle to push the vehicle into an intersection. The safety concern is when pulling out across traffic to make a turn the lack of acceleration leave the drive susceptible to being hit by crossing traffic. I contact the Lexus dealership maintenance department and they indicated that it's a know problem and there isn't a recall or a solution. There is no warning light not other mechanical problem. I would not submit this concern if I didn't feel that this is a life threatening concern. There is far to much hesitation in acceleration, compounded but the fact that there is just enough acceleration to put the care in harms way with out enough to avoid a potential accident.

On July 19th, with less than 100 miles on the odometer, the vehicle began down and upshifting so hard that it felt like a collision. Additionally, when attempting to accelerate, the transmission would hunt for gears without engaging, resulting in loss of power - creating a very dangerous situation. Lexus is unable to identify a resolution and has had the vehicle in the shop for 2+ weeks