2013 Hyundai Sonata

I was driving my car, on my way home and all the
sudden I notice the car starts slowing down and the
engine light, EPS light, oil light, and battery light
turn on. I pulled off onto a side road and coasted
into park. The gas peddle does absolutely nothing
when pressing all the way down at this point. And
the the power breaking was useless and had to put
my foot all the way down to stop. I called AAA and
got towed to my mechanic. They said that the car
was low on oil and they gave me an oil change. The
next day I go to pick the car up and all is well, I
drive home and make it a mile from home and the
same lights turn on and now the car will not start.
The car has around 136,000 miles on it.