The way cars have been computer synced I don't think you have a lemon just maybe updates your dealer will do.
My nav went out and I needed a new SD card. I had only had 200 miles on it and then I got locked out and it's keyless and since then every thing has been fine.They claimed an airplane radar or emitted a maga hrtz or GHZ and it jammed locked the car.
You really need to have a tech savvy mehanic and most service shops have only 1.
Keep records and dates of any thing that happens to your car.