Alternator/generator/regulator problems of the 2018 Nissan Altima

Basically I was at the store came out to go home and the car would not start then after a while it started up but then when I went to drive it again it was giving me a hard time to start and after I waited a while and tried again it started up but would not switch gears out of park at all and it has been an ongoing problem I went to Nissan and when I got there they told me to change the key fobs in which I did and it started up with no problem but after a few weeks the same problem has happened then it fees like the vehicle stalls to drive off when you press the gas. And when it wouldn't start it kept showing my brake pedal and key fob together. I was parked in a parking lot and actually had to end up calling my road side assistance to have the vehicle towed because it wouldn't start up and there are no warning lights or anything coming up on my dashboard ok top of that I just had the battery, alternator, transmission and engine checked at Nissan and they said there was nothing wrong.