An FYI thread. My battery the Panasonic 340 CCA crapped out on me after sitting in one place for 6 days after boosting it twice I called the dealership and asked if they would replace it under warranty (1 year left on my 2017) they said yes but they would use the same battery.
I almost went to Costco but instead decided to take the free option for now. Dealer tested the battery and it failed easily as expected. They replaced it not with the same garbage Panasonic they gave me a Toyota Premium COPBS-8435F (Group 35) with 550 CCA, under warranty.
Very positive experience with the dealer and I feel more confident now then that 2 year old Panasonic that struggled to crank so many times.
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