NHTSA Complaint #11533903 — 2020 TOYOTA RAV4

Coolant Bypass Value Replacement required on my 2020 Rav 4. I have 33,000 miles & purchased in 2019, so it is not covered under warranty. The dealer is charging me over $850 to replace. I have been told by the Dealer that this is a "KNOWN" problem with this and other Toyota models. Why is there not a recall or extended warranty on this repair if so many owners are paying hundreds of dollars on relatively newer cars with the same FAULTY PRODUCT? I would like Toyota to reimburse me. I am having the car repaired tomorrow because I have been told it is dangerous to use the vehicle in this condition. Please assist me with ways to get reimbursed from Toyota and for others to receive repairs at no cost, especially on vehicles under 5 or 6 yrs old. thank you.