I had a very odd experience with my 2015 yesterday. It wouldn't start suddenly with no indication to cause.

It was a daily driver until a week ago. Saturday I finally fixed the air intake properly with silicone as suggested by others here. I didn't start it back up, just left it in drive. Monday my wife called and said the battery was dead. Got off work and tried to start it, battery wasn't dead but it would not start. Cranked over fine. I pushed pedal to floor and tried again and thought it stuttered but no start. I pulled air cleaner off, no silicone where I didn't intend it. Cranked a time or two with no housing, just the filter in place. Nothing. Pulled and checked every fuse, all good. Tried starting again. Floored pedal and got it to stutter and finally start. Struggled to idle a minute and then finally cleaned up and is running now fine. Never set a check engine light.

Any idea what the cause might be? Want some confidence since I can't point to anything being the culprit.