Fixed the reverse brake squeal thanks to
Gio's video. Had reached out to various Toyota Service departments regarding the TSB to try to get it repaired under warranty and they had no idea how to fix it or had their AI scheduler just put me in as a regular brake job... So I figured to just do it myself.
$20 in parts and the squeal is 100% gone. Basically just replacing the metal shim with these OEM spring wires that I bought off eBay. Also added some grease to the back of the pads and the caliper/pad contact points as they were bone dry. Highly recommend just DIY as it takes less than 10 minutes to do once you get the car up on jackstands.
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