Ever since my dealership did d a software update to the PCM things have been quite smooth as before say starting to go up a hill and you push into the accelerator to maintain speed / speed up it would jolt to downshift now it dose it smooth and iv also watched the cylinder deactivation screen going down the highway and mine had been good with 10,300 km on it now touch wood and I haven't had brackets replaced or anything just asked them to update software as it was jolting to downshift. One thing I noticed tho is the cylinder deactivation since the software update is a little less aggressive as to when it switches to two cylinders.