I've had this happen at least 3 times now in my 2012 Sport with automatic transmission......cruise is activated at around 35 m.p.h for several miles, then speed limit goes up to 45. I press the + button to ease up to 45 and let go at about 44. The transmission immediately kicks down as though I floored it and she shoots up to around 55 and then slowly settles back down to 45. Scared the bejeebers out of me. Anyone else experience this?