On two different occasions, while driving on the interstate during the middle of the night, my engine speed suddenly and drastically dropped without explanation and my engine light came on. Had this happened during the day and especially in heavy traffic, it could have perhaps been life threatening because of the sudden disparity in speed. As it happened on both occasions, because I was in the "middle of nowhere", I had to sleep in my car until I was able to get help. Later, after returning to my home state, and after being charged nearly $200.00 just for the diagnostics by a Honda dealership, when I drove my car off the lot, shifting the gears was extremely difficult. A few days after that with my car parked in my sister's driveway, it was impossible to shift gears from park to reverse. The Honda dealership had to come and pick up the car and I was told that the shift cable pivot had rusted. In all my years of owning/operating a vehicle, I've never experienced this scenario before on any other vehicle nor have I heard of this before. Regarding the cvt transmission valves needing replaced, I have not yet had the work done (I have a second vehicle to drive). After the complaints I'm seeing online regarding Honda transmission problems, including in my Honda 2003 Civic Hybrid, I'm researching the issue. The repair costs will be approximately $1500, not counting the $200 diagnostic fee which I have already paid which is not applicable toward the actual repair costs. I currently am in communication with a Regional Service Manager from Honda.