Very helpful thread. Tried calling my local dealer (Fredrick CO) 4 days ago and unable to reach service associate after calling each day and leaving multiple messages (is there an employee shortage there?). Now beginning this same process with the Lexus in Lakewood CO (earllier post had great service from Lexus Lakewood). Good know know from this group that the squeal is a known Lexus issue and a resolution is available. It is not only embarrassing backing up an expensive new car to hear this, but really sad that Lexus didn't resolve this themselves. Bought my '25 in July and has 2k miles. This started happening at 1500 miles and occurs EVERY time I back up after an overnight rest - temp/humidity doesn't matter.