TSB: TRA093 DE (P/HEVnot sure where to begin on this post.
we purchased our NIRO 12-31-18, loved the car, great gas mileage, plenty of bells and whistles for the price..
within two weeks started hearing a noise, sort of a grinding noise (sounded like we had a tree limb hung up under the car) that would come and go, ignored for a couple of days hoped it was an anomaly. Took car to dealer they said it was buildup on rotors “hit the brakes hard and it will clean it off”, ok, tried that no change, took car back said that it was part of the “regen” system normal sound. Ok, noise started being steady and very annoying. Finally after two more complaints they said leave the car and we will drive it and see what’s going on. One of the techs drove the car and said he had no idea what the problem was and that they were going to call in a KIA engineer to diagnose the problem, this was after the car had been at dealer for two weeks, he finally shows up and said replace the transmission, this is a new car with less than 20K miles. It was the end of October when we took the car to dealer they called December 17 and said car was ready. (BTW, we did have a loaner car all this time) long story short the car is now a mess, you can be driving at speed and the car will start slowing down and it finally stops. we are in contact with a lawyer. Terribly disappointed
Ours started with the same problem with under 2000 miles on it. I searched and inquired and searched more. On the Kia forum I found the answer, then had to convince our dealership to do it. They finally agreed to and since the work was done a month ago, the car is no longer having the problem, not even one single time... There is a Technical Service Bulletin: TRA093 DE (P/HEV). I printed it and took it to the dealer and insisted they do this. The reason I say this as the issue was quirky enough that they could not replicate it. Upon picking my car up one day after they had it trying to replicate it, I recorded it on my phone and sent it to my favorite service advisor.
The transmission oil should be replaced, along with the drain plug washer and the fill plug washer.