Abs light is on traction control light says it's off and service stabilli light is on but no codes were found when plugged in. What can this be ?

I'm having same issue but not my ABS light instead the Check engine light flashes and the traction control light plus ESC light comes on my dash says service ESC then service Traction control then it says ESC off so the 30 seconds it takes for all that my CEL will flash then when other 2 lights go out then CEL stays solid. I have a 2009 pontiac g6 gxp this just started 3 weeks ago. My 1st scan was also P0300 which is random misfire it can be tge computer doesnt know which cylinder or it can be multiple that is why its random otherwise it would state p0301for cylinder #1 or p302 for #2 u understand the order. I'm at 91k miles I decided to change all the spark plugs since I'm close to the 100k mark. I found little oil in plug#2 the only well so I cleaned it out took car on drive to recycle computer well now it to say cylinder 2 needed new coil pack so I replaced that now drove my car 300 miles in 2 days still did not fix the problem still getting flashing lights rough idling and now if I were to do a 3 point turn my car will not reverse doing that maneuver and when in reverse the doors will unlock. So I have to put my car in park then reverse to complete the turn. I know GM has recalls go to NHTSA put in your VIN# hope yours is part of the recall cause what I been reading its an expensive fix. If not read the complaints gives a lot of info from other owners that experienced the same They recalled up to the year 2008 for the pontiacs and are choosing case by case for the 2009s but a certain code must be thrown which my car is not doing any other codes