I have a new 2020 GMC AT4. It has 3500 miles on it. Drove it yesterday with no problems. Washed it in the afternoon and put away in the garage. Went out today to run to the store and had zero signs of life. No lights or power to anything. Key fob doesn't do anything. Going to try and jump start it shortly but finding it hard to believe something drained the battery to zero since it wasn't on. Thoughts?