So when I take a prolong turn like a 270 degree off ramp while accelerating slightly through the turn. My traction control light flashes then kicks it out and says DSC needs service/ repair. There's no issue with the DSC do the dealership says. They said they have never seen this and want to install a data logger to track the issue. Anybody else had this issue.

 

This kind of thing was happening to me. It stored a P2162 (Vehicle Speed Sensor "A"/"B" Correlation). Turned out to be a rear hub assembly after wheel speed sensors were ruled out.

 

Mines different there's no wheel speed differences it's putting up a yaw error.