WE HAVE A 2004 4RUNNER WITH EXTREME BODY RUST A CORROSION WHICH HAS CAUSED THE FAILURE OF NUMEROUS COMPONENTS, BRAKES, GAS TANK, TRANSMISSION LINES, WHEELS AND OTHER SUSPENSION AND EXHAUST ITEMS. WE ORIGINALLY NOTICED THIS FAILURE AND BEGAN TAKING STEPS TO CORRECT AREAS OF CONCERN, BUT THE EXCESSIVE RUST HAS PREVENTED MANY REPAIRS ON SUSPENSION, BRAKES AND OTHER COMPONENTS. WE RECENTLY HAD AN INCIDENT THAT ALMOST CAUSED A ROLL-OVER WHEN THE BRAKES SEIZED AND THE TRANSMISSION LINES FAILED. I CAN DESCRIBE THIS IN MORE DETAIL AT REQUEST. WHEN WE TRY TO REMOVE BOLTS, BRACKETS AND ASSOCIATED HARDWARE, THEY ARE SEIZED, ROUNDED OFF AND/OR BROKEN. WITH NO WAY TO REPAIR DAMAGED PARTS OR REMOVE THE RUST, WE MAY BE FORCED TO SCRAP A VEHICLE THAT IS OTHERWISE RUNNING PERFECTLY. WE HAVE TAKING EXTREME MEASURE TO ATTEMPT TO MITIGATE THE CONTINUING DAMAGE, BUT SEEM TO HAVE NO OPTION FOR EXISTING DAMAGE. I DO KNOW THERE IS 1 OPEN INVESTIGATION ON THIS ISSUE FROM 2018, NHTSA ACTION NUMBER: DP18002. ORIGINAL COMPLAINT NUMBER VOQ 11098055