I BELIEVE THAT MY S/M/D IS NOT WORKING PROBERTLY.

What is your question?

When I first take off in my car it goes really slow at first and feels like it's even jerking sometime as if the gears are trying to change. And my check engine light is coming on and giving me a massage about my transmission. I've taking it to two deferent dealerships to have my transmission check and where told that it was okay by both dealerships. The last dealership did something to make the warning light go out but its now back on again.