2009 Pontiac G6 base sedan 144000 miles Automatic. I was on my way to work and had to hit brakes pretty hard since some people on the highway cut off the car in front of me. Came to a complete stop and then when I tried to move the car again it wouldn't budge. The engine was reving but it wouldnt move. I was stuck like that for around 10 seconds probably before the car started moving again.
When I got out of the highway I came to a slow complete stop but I felt a small bump right at the end and the car was stuck again. The engine would rev but not move forward. I shifted to reverse and the car went back a little and would shift to drive again but it would not budge again. This also lasted about 10 seconds before the car moved.
A few red lights and stop signs to work with no issues and in the parking lot I tried braking hard and soft to see if it happened again to get out and see if the brakes were locked but it did not happen again. Hopefully the drive back home goes fine but I will go slow.
I had this happen a couple times last year but only for a second or two and the mechanic told me it was probably just because I was late on my oil change. Again now my oil life meter is pretty low. I also had my front brake pada change a month or so ago.
So any ideas and what I should ask to mechanic to look at more in detail since this seems to be getting worse with time?