Alternator/generator/regulator problems of the 2008 Toyota Sequoia

Rusty parts (rust extended warranty) the back window on my 2008 Toyota Sequoia fell down abruptly while traveling on the highway. The vehicle was in motion. Items flew from my back window and I was forced to slow down abruptly and prevent drivers in my rear from being in an accident. After pulling over, I had to retrieve those items on a busy roadway. I attempted to diagnose the issue by powering the window back up, but it wouldn't work. I attempted to push the window to the up position and it would not work. I had to secure my items and drive home slowly. Later that day, I conducted some research online and found out the 1st generation Sequoia was issued a recall for the same exact problem. Apparently, the issue was due to a faulty window regulator from rust. Unfortunately, I do not see any recalls for the 2nd generation models. I took my vehicle to a local mechanic and once they examined the back door, they diagnosed that the cause for the window falling down abruptly was indeed from a rusty regulator and rusty parts. I conducted more research and found out that Toyota has been infamous for installing parts that rust over time. Toyota issued an extended warranty for rust, but it doesn't state specifically what it covers. I contacted Toyota and they instructed me to take it into a Toyota dealership. I was told that the rust extended warranty recall pertains only to the undercarriage of the vehicle and not anything else. The notice is the mail did not specify the undercarriage. My rusty parts are not covered under the extended warranty for rust. It is not right that Toyota is finding a way to remove themselves from any liability with their vehicles developing rust over a quick period of time. If a recall was issued for rust on the frame, that's an indicator that Toyota uses poor quality parts.