NHTSA Complaint #11437941 — 2017 TOYOTA RAV4

I purchased my 2017 Rav-4, brand new off the lot the end of 2017. On October 2018 my car battery was dead. NO prior indications of problems, No indicator lights. I had it towed to the dealership, they stated it was a bad cell in the battery and installed a new one. Then on Nov. 2020, once again had a dead battery, again no prior warning. I called and got a jump, took the car back to the dealership, they checked it and said I must have left a light on all night because it was completely drained. They put a 3.5 hour charge on it, check the charging system and said all was fine. Then again on 10-19-21 the battery was dead again. At that point I was pissed and just went to the parts store to get a new battery. Upon opening my hood to replace the battery I found so much corrosion on the top of the battery, cleaned it off the best I could, upon disconnecting the battery positive terminal I found the post had lifted out of the battery causing the corrosion all over the battery. I went to the dealership, they told me they were not responsible for corrosion, they did what they call a corrosion maintenance to clean the terminal, offered me a $55 credit because they said the battery was 3 years old and they would have to prorate it. Which they hadn't as of 10-23-2021. It was a 84 month battery. While there they also said my oil pan gasket was seeping and would need replaced and the front brakes will need replaced soon. I haven't even had the car 4 years, it has 15,300 miles approximately. Definitely some problems with these cars and Toyota needs to take responsibility . I bought a extended warranty, but seems none of this is covered as they say it is normal wear and tear. Never had to replace brakes on a car less then 4 yrs old. After reading all the complaints, I guess I am lucky my car didn't catch fire.