I have been through outside and third party testing and my seats on the 2025 GX 550 are definitely not working. Max by infrared therm is 75- 80 degrees. Without heat the seats were already at 75 degrees. Dealership says working like other GX on lot (and not fair to compare to other models). The loaner they provided heated to over 100 degrees. This is forcing me to sue Lexus (I’m an attorney) under lemon law and warranty. Typically, heated seats range from 80 degrees on low setting to 113 degrees on high. If anyone is having similar problem please call me at (513) 235-5126.