2017 Kia Soul electrical system problems

“My car has had intermittent faults of codes P1B25 and P1CF2 and are showing check EV system on the dash. This happens after about 30-45 minutes of driving and then restarting the car. It has been identified that the power relay assembly needs to be replaced on the vehicle, which lives in the high voltage battery pack. However, Kia does not want to replace this under warranty , claiming that it is not an EV system component. I am not going to pay out of pocket for this repair as it goes against their own warranty information, but continuing to drive the car would be dangerous as it could drop HV power at any point.”

“I reported the issue yesterday, but we have additional information. Here is a timeline of the incident as recorded by the doorbell camera: 2026-05-03 085400 Car parked 101423 Car is already trying to start by itself 101713 Car still starting, starter slowing down 101734 Starter sounds overheated 101740 Starter slows to stop 101835 First visible smoke 102304 Neighbor notices 102338 I was notified 102452 Used extinguisher 102600 Fire out 102744 Called the fire department 103600 Fire department arrives shortly after I have camera videos showing much of the timeline. I cannot upload because they exceed the limits of this form. Well over an hour after the car was driven, the starter engaged. It ran for almost 4 minutes straight as far as I can tell. In the videos we have, you can hear it seize up from the heat. About a minute later, smoke is visible. Had this not been caught in thte timely manner that it was, it would have been devastating. Here is a link to two of the videos. [XXX] [XXX]”

“After multiple recent services at the dealership, the car caught fire while idle in the driveway. The fire was under the hood in the front part of the engine compartment, just behind the latch mechanism. Fire was extinguished and verified by the local fire department. The parking spaces are close to other cars and townhouses.”

“I’ve had to get three oil changes in just five months of owning my vehicle. Honda of Brandon sold it to me with a clean Car-Fax report, but I’m now facing a possible manifold and catalytic converter replacement costing $4,200. When the service department called the warranty company, they claimed it was a catalytic converter issue, but it turned out to be an O-2 sensor, which would cost about $460. One month after purchase, I had to replace the ignition coil and requested spark plug replacements, though I wouldn’t have known if a spark plug was bad. That repair bill alone came to $802.17, just a month after buying the car. Problem with battery. Oil has to keep being replaced and no one knows since not on ground has to be going in the engine. service rpt are Aug/19, 2025, jan 20,2026”

“Am receiving a code for camshaft sensor bank 1 sensor a. Figured it could be timing but also know about TSB’s. Need to see if there are any posted for my specific 2017 Kia Soul.”

“Multiple stations failed emission inspection in texas for fuel not completed and evap not completed. Tried multiple things to fix. Took it to shop that kept for days and diagnosed with logic lock with the ecm/ecu. Basically bad ecm which is common problem with kia soul and there are recall for models older than 2016. Moritz kia kept for 17 days and said they could not figure out issue but ordered new ecm. I contacted DPS and got steps to get waiver because it could take weeks to get part. Asked kia to inspect again since two failed inspections required for waiver. Some how it passed inspection with the same two not completed emissions. In texas vehicles newer than 2001 are allowed only one not ready. Kia said they would not replace ecm since it passed inspection. Appears they are trying to not fix known issue. Concern is if a real issue with car happens the ecm will not update with error since it has logic lock. There are lots of reports of issues with the ecm and kia not honoring warranty. The ecm is covered for 8 years 80k and the car has 7 years 70k now. It appears they are just trying to delay fixing issue. If battery is pulled, obd code reset, or ecm…”