transmission seems to jerk between 1st and 2nd in stop and go traffic on 2006 Volkswagen Passat

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
check engine light just came on tonight while I was on freeway.

I am worried this is a major transmission problem.
(1) Answer
(4) Comments
Have it scanned to find out what the computer wants to say about this. It has got the best clue since the light is on!!
Thanks. I read too many horror stories and am not looking forward to the computer.
Relax, it's prob. something simple! Whatever the problem, if that's the worse thing that ever happens, it's all good!