2023 Kia Sportage: sudden loss of power

Filed Nov 2, 2026 · IL

I am filing a safety complaint regarding our 2023 Kia Sportage, VIN [XXX], with approximately 51,331 miles. The vehicle began experiencing shaking and vibration while driving at speeds below approximately 40 mph. The check-engine warning light also illuminated. This raised serious concerns about the vehicle's reliability and safe operation, particularly because my daughter regularly drives this vehicle to and from school. I am concerned about the possibility of an unexpected loss of power, breakdown, or other mechanical failure while she is driving. On XXX, the vehicle was inspected at Napleton's River Oaks Kia in [XXX]. According to Repair Order #XXX, diagnostic testing confirmed engine misfires in cylinders 2 and 4. The technician swapped ignition coils, performed additional testing, and documented that the misfires returned. Carbon buildup was identified on the cylinder 2 spark plug, and all four spark plugs were replaced at a cost of $406.17. Although the shaking and vibration stopped following this repair, the underlying cause of the misfires remains a concern. I subsequently learned about an investigation involving alleged defective fuel injectors in certain 2023 Kia Sportage vehicles and Kia Technical Service Bulletin FUE068. I do not know whether our vehicle has a defective fuel injector, and the dealership's invoice does not indicate whether the injectors were tested. I am requesting that the federal safety agency review this incident to determine whether the engine misfires could be associated with a broader vehicle safety defect. The vehicle has been inspected by an authorized Kia dealership, and the repair documentation is available upon request. The original spark plugs' availability for inspection is UNKNOWN. My primary concern is the safety of my daughter and other motorists should a similar malfunction occur again. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 13, 2026 · TX

Main 12V electrical system failed completely. The engine stalled, the entire dashboard blacked out, and all auxiliary safety power was lost. The vehicle is currently located at Parkway Family Kia and is fully available for inspection. At rush hour freeway speeds, the engine stalled and total electrical failure occurred. Navigating across active lanes without engine power or power steering was extremely difficult. The total blackout killed my hazard lights, preventing me from warning other high-speed drivers. The dead car blocked an active lane on the feeder road, and an inattentive driver nearly struck my stalled, unlit vehicle. With zero hazards, I had to abandon the car and flee to the roadside to avoid a rear-end collision. Additionally, all passenger doors permanently locked, creating a severe entrapment hazard. Not yet. The vehicle was towed to Parkway Family Kia on Tuesday and is currently awaiting an official manufacturer diagnostic inspection by their service technicians. No advance symptoms prior to the day of the incident. At the moment of failure, the dash suddenly lit up with multiple warning lights. Within a tight 1 to 2-minute window, I completely lost power steering, making the vehicle extremely heavy and difficult to maneuver off the highway. Immediately after those 2 minutes, the dashboard and all electrical components went completely dark.

Filed Apr 18, 2026 · WI

I was driving on the highway around 50 mph when my car sudden if turned off. The dash said something about loss of power and to pull over. It would not start again and I had to call a tow truck.

Filed Jan 6, 2026 · Driver assistance, Fuel system · CA

Purchased the vehicle 2nd hand January 29th 2025. Since then she has been in and out of multiple shops including Kia. Check engine light, loss of power on fwy, shifting/brake changes from a stop. From jerking, lunging, studder, taking off fast, not wanting to go at all. I was on these dips that I encounter almost daily and the collision warning went off. There wasnt anything in front of me. 2 weeks later I was cut off and had to swerve to avoid. Collision warning DID NOT go off. Driving on the fwy and the gas pedal pulled away from my foot as if it was accelerating. Kia has done a hard carbon, changed all fuel injectors. Last time they stated there was a factory defect with the rotors, changed all 4 rotors. Still she drives like this. Carmax, Kia and Daniels Tires NO ONE can tell me what is wrong! I have driven a 2024 same make and model and the car drove beautifully. Something is wrong with my particular vehicle. This is becoming frustrating. Please help. I drive often, I hike a lot. We are always on winding roads. I can't afford to sell it as I still owe. I love the vehicle, aside from this, like I'm just waiting for disaster to occur. Miles started at 14.5k and it's now 33k. Speeds have been anywhere from a complete stop to go and fwy speeds of 55 to 80.

Filed Nov 28, 2024 · Driver assistance, Engine · GA

On November 25, 2024, the dash and infotainment screen went blank while at the traffic light. A few seconds later the car stalled shutting completely off while making a left turn onto Cox Rd in Evans, GA. We were able to coast out of traffic and came to a complete stop on the side of the road. We attempted to restart the vehicle and multiple warnings appeared on the dash such as check forward safety system, two cars colliding, check blind spot safety system, traction?, ABS, lane departure, seat belts, Auto Hold, and other symbols not understood. On the second attempt, the vehicle restarted and more warning symbols appeared as soon as it was put in drive. The vehicle was shut off and restarted again with no warnings. We proceeded and drove it to Kia of Evans for service. The service Rep reported that the vehicle was driven 5 miles and they were not able to duplicate this issues. The infotainment screen has blanked out several times since purchase and this is the second time the vehicle has stalled at a traffic light. On this incident, this could have been a traffic situation turning left and losing power into oncoming traffic.

Filed Jul 10, 2023 · Engine · CO

The vehicle has lost acceleration twice and one of those times, it was a hazard to other drivers and put my safety at risk because it loss power in the passing lane on a major highway. The car shut off and I had to restart it about 8 times to get it over to the side of the road. Each time there was white and black smoke, the car would shake and just shut off. The car has been in the shop once before and they think it was a cylinder misfire and they said they fixed it. This is the second time it is in there. The car is still under warranty. Other times it has been for several recalls. There were no times that the car would do this, no symptoms or messages. This is a safety hazard for other drivers and puts the drivers life in danger. This is not what a new car experience should be.