My 07 S will downshift to 5th after approximately 30 miles of travel at 70 mph.
I've had it to the dealer twice without them being able to duplicate the problem. I just went to pick it up today after they've had it for 6 weeks to fix it. I have just under 9,000 miles on the car.
Needless to say, on the way home it started again. I immediately phoned the service tech and informed them that I was returning and to have someone available when I arrived to ride with me so that I could verify that they acknowleged the problem, which they did.
Just curious if anyone else has had the same problem.