Car Will Not Start problems of the 2016 Toyota RAV4

I have had and continue to have battery trouble with my Toyota Rav4. I first bought a new 2014 and at my regular maintenance at the dealership, the battery was replaced several times. I was uncomfortable enough to trade it in and get a new 2016. I still have this one, but it continues to have battery trouble. I have been left stranded at work when my car would not start. That is when I found massive amounts of corrosion, and to this day, the terminals corrode over even with new battery. The passenger door does not always lock with the key button bc of this issue. I would estimate I've replaced the battery 3-5 times between the two cars, with no real solution. Batteries have always been replaced/installed by the local Toyota dealership. (I'm sure invoices could be pulled if necessary) my cars have not stalled while running, they won't start or just start to have electrical issues w lights, and it gets checked by the dealership. They usually recommend replacement while the battery is covered. A separate but equally unsettling issue is with the windshield. It recently cracked due to a passenger flicking a bug on it. You would think a rock landed on it.

2016 Toyota Rav4 xle. Consumer states that after purchase vehicle would not start. The consumer was informed, by the dealer, the failure was due to the vehicle being struck by lightening. The insurance company did not agree.