I am still having the same problem after they replaced the sensor. It feels like the SC isn't coming on but it mainly happens at highway speeds. In town from a light it seems to not have the problem till you get up in speed. The tranny downshifts but it doesn't help at all. This is making the car very boring and dangerous to drive. I have more confidence in passing someone in my 4 cyl nissan pickup. Back to the dealership it goes.