Originally Posted by Buzzlitonian

When the car was acting up we could tell there was extra heat buildup in the engine compartment. A smell of transmission fluid with the rpm cycling wildly way above idle from 1000 to 1400 rpm, until the car was turned off.
To get back to home or the dealership, I had to use Manual up to 5th gear. Any higher, the car would failsafe. So, basically a call was made that the clutch was slipping and a module inside (poor design I think) called the TCM was shot. So, have to replace the whole thing. First step in the troubleshooting process, I guess. So, someone at Nissan made the call and swapped it out.