Battery Dead problems of the 2013 Lexus GS350

I purchased a new Lexus GS 350 2013 and it just made it over 10k miles and I have already been stranded in my house with no car 2xs. The battery has died and the car would not move. No lights were left on and on both occasions Lexus said the same. Here I stand inside my house with no vehicle. From one day to another - I had no car. Its needless to say that I pay a "generous" amount of $$$$$ a month; therefore, I would have not expect this from Lexus. Maybe kia. Who knows anymore.