Frame Rust problems of the 2008 Toyota RAV4

Tl- the contact owns a 2008 Toyota Rav4. The contact stated that while at the dealer, the contact was informed that the vehicle was unsafe to drive to the extensive rusting of the frame, driveshaft, front control arms, rear suspension, rear shocks, and the passenger rear rim. The contact was also informed that rust was not a defect but environmental. The manufacturer was notified. The vehicle was not repaired. The failure mileage was 20,000 and the current mileage was 42,000. Mah.