Back in early February of this year, my car was taken in to the dealership where it took a long time for parts to arrive to the dealer for an issue not related to the battery. I'm guessing the long wait for parts was related to the corona virus. But whatever it was, the delay caused the vehicle to sit for two months in the shop.
The day I picked it up, I saw a message in the entertainment screen that said "System Off to Save Battery" before I even started up the engine. I didn't give it much attention at that time. The message went away after the engine was running All I wanted was my car back after two months of being out there. I reasoned to myself the message might have had something to do with a setting they changed that was hidden to most people that can "save" battery life and that I wasn't even aware existed. I know no such setting exists, but I wasn't sure at the time. I only saw the message appear one more time again within the next week. I never saw this message as long as I've owned it.
On the 10th day (on the weekend) after picking up the vehicle, I tried starting the car 24 hrs after the last time I drove it. The battery was unable to turn over the engine and the message appeared again. The dealership came out and started the vehicle and I told them I'd call on Monday to schedule to take it back in and have the battery and whatever else needs to be checked.
I know the car's production date and its never had the original battery replaced. Its 3 years 10 months old.
I'm guessing the dealership could have let the battery life drain after the car sat 60 days in a shop assuming if no one ever disconnected the battery.
I told the person who came out from the dealership that maybe the mechanic never disconnected the battery all this time. He said that wouldn't have caused a drained battery
What if they test the battery on Monday and say I need a new one ? A battery should last more than 3 yrs 10 mos. right?