The car is 1-1/2 years old with 21,000 miles. It started shifting funny through all gears when cold about 5-6 months ago but maybe only once a month. It gradually increased to twice a month then once a week for the past 1-1/2 to 2 months. Each time I call the dealer they tell me that I can make an appointment but if it's not shifting funny when they test it there is no way to tell whats' wrong without a code. I tried making a couple of appointments but had business appointments that got in the way so I had to cancel (the car wasn't shifting funny at the time anyway). yesterday night it started shifting funny and continued this morning through the afternoon non-stop. Finally the trans light came on today and I checked the code with my scan tool when I got home. P0711 (Transmission Fluid Temp sensor circuit) came up. It's going to the dealer tomorrow morning. I hope this isn't a big issue. Has any one else had this issue? If so, what did it end up being? Did they just have to replace the sensor?