I have the same problem as
I have the same problem as you. I just purchased the vehicle. The rust is really bad in mine and have caused perforations in the frame. I took it to Toyota to see if it qulified for the corrosion copound treatment which is still in effect until May21,2019. It did not qualify for the treatment due to the performations found. The frame is entitled to a replacment but the frame replacement programmed ended January 31,2019. I called Toyota corporate with no luck since frame replacment has expired. I would appreciate any suggestions. Thanks