2025 Kia K5 Transmission and drivetrain Problems

“I had plenty of time to pull onto a perpendicular street. While accelerating the car would not shift to next gear. It hit about 4.2 rpm and still did not shift. I was almost hit!!!! After pulIing over to safety, I ensured it was not in manual mode. Started driving again and It wouldn’t go more than like 20 mph. I pulled over a second time and shut it off. Started it up again and it worked fine. 603 miles on this car. Kia is not interested in quality it seems.”

“On startup, the engine took about an extra second to fire. The starter cranked noticeably longer than normal before the car turned on. Shortly after, I pulled out and turned onto a street. When I pressed the accelerator, there was no response at all. No rev increase and no acceleration. The car would not pick up speed. I switched to manual shift mode to try to force a gear change. When I changed gears, it took a couple of seconds to respond each time, much slower than normal. I managed to coast/limp to a nearby gas station. …”

“Transmission has extremely hard shifting if vehicle sits for more than 24 hours. After the vehicle is parked, inside garage, or outside, the first drive of the day has an extremely hard shift of the transmission on the first shifting of the day. The shift it so hard, it jerks the entire car and jolts me in my seat. The remainder of the drive and day, the hard shifting does not occur. Took the vehicle into dealership where purchased at 1000 miles and left it with them for 2 full days. Unsurprisingly, they said they were, Unable to reproduce . …”

“The K5 - as soon as I began driving it at 0 miles, I noticed it shifted at lower speeds extremely hard. Head-jerking hard during the first drive of each day at speeds below 25mph. Once the vehicle warmed up, the problem would go away and wouldn't appear until the next day - after the vehicle cooled down completely. I thought, maybe there was a break-in period. So I drove it for about 250 total miles. At that point, I made a service call and brought it into the dealership. I left it overnight. Explained all of the symptoms. The next day, one of your service advisors test drove the vehicle. …”

“There is a hard shift after the car has been parked. Bought the car with 6 miles on it, now has 35,000. This issue is not new, we have had it into 2 different dealerships, and neither were able to duplicate the issue . It is increasingly getting worse so it will be going back to the shop yet again.”