2022 Kia Niro Ev

COMPONENT/SYSTEM: The 12-volt auxiliary battery system, the interior fuse box (Total Integrated Power Module) containing an auto-cutoff relay, and the high voltage battery system. All components are available for inspection. SAFETY RISK: The vehicle has lost power and died while being driven, and has left occupants stranded on multiple occasions. A sudden loss of motive power in traffic creates a serious risk of collision to occupants and to other motorists. The vehicle has failed to start dozens of times. FAILURE DESCRIPTION: The 12-volt battery in my 2022 Kia Niro EV has repeatedly discharged, leaving the vehicle dead and unable to start. ~Six 12V batteries have been installed between January 2025 and February 2026, between 60,431 and 77,130 miles. CONFIRMED BY DEALER: Yes. The condition has been reproduced and documented by the dealer across five separate repair orders. On 1/21/2025 at 60,431 miles, the technician found the 12V battery completely dead after sitting, jump-started the vehicle, and reported no abnormal draw on the electrical system. On 11/05/2025 at 74,355 miles the vehicle again required a jump start to be brought into the shop; the battery was replaced, and the technician reported the vehicle was operating as designed. On 1/22/2026 at 77,124 miles, a technician performed a parasitic draw test and measured 0.185 amps, exceeding the specification of below 50 milliamps by approximately 3.7 times. The technician documented that the auto-cutoff relay was remaining closed, continuously supplying current to 21 modules, and that the interior fuse box required replacement at a quoted cost of $2,048.48. This defect was present during the two prior visits but was not identified. On 2/13/2026 at 77,130 miles, the vehicle would not start when we came to pick up the car. The shop had to provide a loaner, and then another battery was installed, and the TIPM was replaced.

I bought my 2022 Kia Niro EV new in 2022, and around 40,000 miles, I had a problem with the reduction motor so I replaced it, shortly after that I had a problem with the wheel so I replaced a part called the axle, and shortly after that, the other wheel had the same problem so I replaced the same part, and the Kia employee said that this part only breaks if there is a strong impact (traffic accident) so it's strange. All of this happened in less than 2 years but I had it covered under warranty so I got it fixed, but now the reduction motor problem that I had originally replaced has happened again and they are demanding $5,800 to repair it since it's out of warranty. I think this is unfair, and this is the first time I've had a car with this many problems in less than 3 years.

I have now had 8 instances of the Low Power warning coming on while driving, which reduces available power, and when coming to a stop, car cannot go forward. This has happened at highway speeds as well as city street speeds. This happened 4 times on a 50 mile drive today, creating a very dangerous road situation. I now feel the car is unsafe to drive, as an accident is waiting to happen. I have contacted the dealership where car was purchased and am waiting to hear back from them.

Vehicle enters power limited (turtle) mode randomly. While driving under normal conditions, with ample battery charge and range, the “turtle mode” warning indicator chimes. Sometimes it is brief and no noticeable power loss is experienced. However, often power will be lost and the vehicle must limp off the road to restart if it doesn’t resume on its own. This problem arises at varying speeds and ambient conditions. Our safety is at risk because you never know when it will happen. Losing power on the highway and making an emergency stop is clearly a safety hazard. The dealership has not been able to replicate this problem.

After putting the car in park on a moderate slope, I exited the car and about 2 seconds later, as I was connecting the charger, the car rolled backward 4 feet before coming to a stop. I immediately confirmed that the car was in park. The parking brake was *not* on. (Or at least, I did not manually set it- I don't know if this car activates the brake automatically when in park.) The right front wheel was on ice. All other wheels on bare gravel. The temperature was 36 deg F. This is an EV, so it may have some sort of event recorder built in. If so, look at roughly 9:10 EST on 2/10/22. This is a short-term rental from Enterprise, so I'll set the parking brake manually for the remainder of the rental and report it to them on return. Contact them if you want to inspect it. The registration lists the owner as "EAN Holdings LLC"

When the KIA is shifted into "park", it will sometimes roll forward or backwards until the brakes are applied by the driver. This doesn't happen all the time and we have not figured out a way to predictably reproduce the results, but it happens a lot. My wife is the primary driver and I have only driven the car about 10 times. It has happened to just me twice in that time frame. It's such a common problem that we have started trying to routinely activate the emergency brake, as the transmission is not reliable in shifting the vehicle into park. During one incident, my wife forgot to use the emergency brake after shifting the car into park. She got out, the vehicle began rolling in park and her leg almost got ran over in an attempt to stop the vehicle. We have taken the car to Mike Miller KIA in Peoria, IL, but they were unable to reproduce the results, so did not take action to fix the vehicle. We have also reached out to KIA on this issue and are awaiting a response. A quick Google search indicated that KIA is not exactly reliable safety-related issues, so I wanted to be proactive in exposing this potential vehicle hazard.