2025 Kia K5 Electrical System Problems

While driving in the dark this morning with my eight year old in the backseat, my headlights shut off, my entire dash including my speedometer, warning lights, radio, heat, heated seat and steering wheel, lost electricity.

Component/System Involved: The vehicle experienced a brief electrical failure affecting multiple systems simultaneously: exterior headlights, infotainment system, and dashboard indicators (seatbelt warning). All components recovered automatically within approximately 0.5–1 second. The issue appears electrical in nature (possible power interruption, grounding issue, BCM/TCM-related event). The vehicle is available for inspection upon request. Safety Risk: Yes. The headlights shut off completely while driving at night, even if only momentarily. This created a visibility loss and increased risk of collision, especially with surrounding traffic. The sudden loss and restoration of lighting was distracting and unexpected. Reproduction / Confirmation: The issue has occurred 4 times under different conditions (day/night driving). It has not yet been reproduced or confirmed by a dealer or independent service center. Inspection Status: The vehicle has not yet been inspected by the manufacturer, dealer, police, insurance, or any third party regarding this issue. Warnings or Prior Symptoms: There were no warning lights, messages, or symptoms prior to the failure. The only indication was the seatbelt warning light illuminating during the event, coinciding with the blackout. No prior alerts appeared before either occurrence.I have experienced this electrical dropout four times over the ~1 year and 4 months I’ve owned the vehicle. Other owners of 2025 Kia K5s have reported the same momentary blackout behavior in online community discussions, indicating this may not be an isolated incident with my car. Owners have described the infotainment and instrument panel going dark and then returning to normal while driving.

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Shortly after a routine oil change performed at a Kia dealership, I discovered a significant oil leak underneath the vehicle the following day. Within a short period of time, the vehicle began experiencing engine-related issues including a cylinder misfire, noticeable shaking while driving, and loss of power, particularly when accelerating or driving on inclines. The vehicle also displayed a check engine light and a warning related to 12-volt battery drain. In addition, I noticed a strong burning odor coming from the engine area, which raised concerns about a possible fluid leak or internal engine issue. These conditions created a safety concern because the vehicle would hesitate and lose power during normal driving, which could increase the risk of an accident, especially in traffic or when merging or climbing inclines. The vehicle was returned to a Kia dealership for inspection. I was informed that a cylinder issue was suspected; however, only a temporary repair involving a coil swap was performed. No comprehensive diagnostic testing was completed to confirm the root cause of the problem. After the repair, the vehicle continued to exhibit abnormal behavior, including shaking and lack of power. Due to ongoing safety concerns and lack of confidence in the vehicle’s reliability, I stopped driving the vehicle. This issue occurred at relatively low mileage, raising concerns about a potential engine defect or unresolved mechanical failure.

While driving the entire car goes black kind of like you just turned it off. It has only happened at night time. The dash screen completely turns off and the headlights will go off. When it comes back on the dash has several lights on it such as the seatbelt is unbuckled (when I’m buckled), and other warning lights. This has been happening since September 2025. I take it to the dealership and they can’t seem to find anything wrong with it, and told me they “can’t do anything until the part completely fails” it’s creates a severe safety hazard since it only happens at night and the headlights also go off.

While driving, the entire control panel shuts down including all interior and exterior lights. It completely resets everything including Bluetooth. It has happened 5 or 6 times since I got the car in October 2024. I’ve reported this to Stones Kia in Idaho Falls, and they were unable to duplicate the issue so they couldn’t do anything. It tends to only happen when I’m driving at night.

Battery keeps dying even after replacement. I would drive it then park it overnight and the next day it would dead. this put my safety at risk because at any time my car could die and I wouldn’t know until I sat in it. I would then have to figure out what to do next since the last 3 times it has died i was stuck with important work to do. There were no warnings or symptoms that first appeared. We have taken it to the dealership and they replaced the battery, but it has died again even after battery replacement.

The contact owns a 2025 Kia K5. The contact stated that occasionally while driving at various speeds, the front headlights, rear brake lights, and interior cabin lights illuminated very bright. No warning light was illuminated. The vehicle was taken to a local dealer where unknown repairs were performed; however, the failure persisted. In addition, the contact stated that the transmission was replaced prior to the recurring failure by the same local dealer. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 24,000.