Brakes squeal in reverse. Loudly. Problem started after 3 months of ownership; purchased vehicle new. Toyota corporate and dealer notified. Dealer has had vehicle 3 times in the shop for the issue. Response was ‘No fix available.’ There is a TSB on this very issue for the Lexus GX550 (L-SB-0036-24). Wanted to put this issue on the NHTSA radar. This is a known issue on the [XXX]. Thank you for reading. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)