Hey All, a newbie here. This lockdown created another problem when my 2014 Prius C didn't start after leaving it in garage for 8-10 days. First I saw check engine light but it started, reaching my destination it didn't start at all in return journey. After leaving it for an hour I was able to start. Now car in garage, very inconsistent behavior, head unit doesn't turn on randomly drive side window glass bounce back from top and open again, brake pedal press create a noise and dashboard restarts.Only consistency is car wouldn't start, I am attributing it to a bad 12v battery and ordered one for replacement. Am I missing something here? Again how to change this battery? Your views are highly appreciated. Stay healthy and stay safe.