2023 Kia Sportage Hybrid

I was driving my 2023 Kia Sportage Hybrid when the vehicle displayed a "Check Hybrid System"/ "Stop Safely" warning and suddenly lost motive power/acceleration. I was unable to accelerate normally. I had luckily pulled of the road that I was going 55 mph into a parking lot prior to the lass of power or I would have stopped right on the roadway with cars going the same speed directly behind me. This created a serious safety concern because if this had occurred while traveling at highway speed or in heavy traffic, the sudden loss of power could have resulted in a collision. There had been no indication to me that the vehicle was about to lose motive power before the hybrid-system warning appeared. The vehicle is currently at an authorized Kia dealership for inspection and diagnosis. The cause has not yet been provided to me. The vehicle is available for inspection. I am reporting this because a sudden loss of motive power associated with a broad-system warning presents a significant safety risk. I have also learned that other Kia Sportgage Hybrid owners have reported similar hybrid-system warning and loss-of-ower incidents.

2023 Kia Sportage Hybrid. Drop in power/acceleration! Upsetting, stressful & unsafe. Purchased brand new, Nov 2023. When this occurred approx. 35695 miles. I left work, got on the freeway, (only maybe 1-2 miles away) and was trying to accelerate to merge with traffic flow and could only go approx. 52-54 MPH. I tried to "floor" the pedal, but with no further acceleration. No check engine light turned on, only display message noting depleted battery/drained warning. Since power was limited, and unsure of safety of driving further or if the car would literally stop, I pulled to the shoulder of the freeway. It is a miracle that I was in the slow lane already! Unsettling! It was towed to a Kia Dealership. They had it for 2 days. The technician said there were two error codes (P017100 - System Too Lean, and P019100 Fuel Rail Pressure Sensor Circuit Range/Performance). They were unsure how/why this incident occurred. They said some kind of glitch in the system. I asked if they have had other cars with this similar issue brought in, and the technician said he did not know of any. The issue was not replicated upon initial diagnostics. Technician cleared codes, reset the engine adaptive values and road tested, and deemed the vehicle "safe to drive". But said if it occurs again, try turning off the engine, wait a bit and try driving! WHAT?! Also if it occurs again to bring it back and a technical ticket should be opened to investigate further. I have read online forums of this SAME issue, and it is a KNOWN ISSUE "especially early-production 2023-2024 models, and hard for dealers to reproduce issue after a reset". It is also noted that "many cases resolve with the free BMS software update or related module/control unit work under warranty. Some report reoccurrence even after updates". I found this information AFTER the fact, otherwise I would have pushed for the software update or related work to be done. I plan to seek that out next!

The contact owns a 2023 Kia Sportage. The contact stated that while driving at an undisclosed speed, there was smoke coming from the engine compartment and the vehicle stalled. The check engine and battery warning lights were illuminated. The vehicle was towed to a dealer to be diagnosed; however, the diagnostic result was unknown. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 104,000.

On XXX and XXX, while driving on the highway, the vehicle suffered a sudden, complete loss of motive power. Flashing warning lights appeared on the instrument cluster, accompanied by a safety warning message instructing the driver to pull over and "Check Hybrid System" immediately. This sudden, uncommanded drop in propulsion on active, high-speed roadways created an immediate safety hazard, forcing emergency maneuvering to coast the vehicle safely to the shoulder. The vehicle was delivered to an authorized franchise dealer (Arapahoe Kia in [XXX]) on XXX, where it has now remained grounded for 31 consecutive days. The service department has verbally communicated extreme diagnostic confusion, stating they lack an on-site hybrid specialist to properly diagnose the high-voltage powertrain/HPV/hybrid battery system. The vehicle has historically received software updates under Campaign SC335A, and the symptoms reported here closely align with the loss of motive power issues addressed in Voluntary Emissions Service Campaign SC338. To date, neither the dealership nor the manufacturer (under Case #XXX) has provided a formal written diagnosis, a repair schedule, or an active resolution. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Over the past 11 weeks, my 2023 Kia Sportage has experienced sudden, complete loss of acceleration on at least three separate occasions while driving at highway speeds. Each incident is accompanied by the battery gauge dropping to zero. I was forced to stop on the highway to restart my vehicle in order to drive it again. No error codes are stored because the fault clears on restart. I have taken the vehicle for inspection to a mechanic and Kia Dealership Marin, neither were able to diagnose or repair the issue.

I am filing a safety complaint regarding my 2023 Kia Sportage Hybrid. The vehicle developed a “Check Hybrid System” warning and was diagnosed by a Kia dealership as having a failure involving the high-voltage hybrid system, specifically the MCU (Motor Control Unit). The dealership informed me that the vehicle may be unsafe to drive due to the possibility of fire risk associated with the high-voltage system. I was told technicians had to use specialized protective equipment while diagnosing the issue and that the diagnosis process took nearly a week. The repair estimate was approximately $5,000, in addition to approximately $750 charged for diagnostics alone. The vehicle is reportedly out of warranty due to mileage, even though this appears to involve a major hybrid system component and a potential safety defect. This concerns me because: - the vehicle is a relatively new 2023 model, - the failure involves the high-voltage hybrid system, - Kia advised the vehicle may catch fire, - and independent mechanics generally cannot service or repair these proprietary hybrid components. I believe this may represent a broader safety issue or defect involving the hybrid system or MCU components in Kia hybrid vehicles. I am requesting that this matter be investigated for possible safety defects, recall eligibility, or manufacturer responsibility.

When driving on the highway, warning lights activated on the dash with the message "Check Hybrid System. Stop Safely." Seconds later, the vehicle lost all propulsion power. The hybrid battery indicated it had a half charge and the combustion engine was running. Depressing the accelerator caused the engine to increase RPMs but little to no power was output to the wheels. I turned the car off and all electrical systems were disconnected and the car would not start. I pressed the "12V Battery Reset" button and electrical systems were restored and I was able to start the car. The failure then repeatedly occurred. This issue has presented multiple times now, all while driving on the highway.

I would welcome making my vehicle available for inspection on this issue. Year/Make/Model: 2023 Kia Sportage EX HEV AWD 4-Door SUV Color: Black Powertrain: Hybrid Electric Vehicle (HEV) Number of occupants: 2 (driver and passenger) Injuries: None, but fatalities could have occurred. Vehicle turned off completely – no power, no hazard lights, and although driver miraculously made it to the shoulder, most of it was blocked by a snowbank and sat in a dead car with no hazard lights. Passenger (recovering from leg surgery in full leg brace) was forced to exit onto a snow bank and enter a tow truck cab, risking re-injury. Crash: No — vehicle was somehow brought to shoulder and aid protected by two state trooper vehicles until a tow arrived. Our car suddenly emitted a loud alarm at highway speed on I-84 -the instrument panel displayed an "stop vehicle immediately" warning. There was no prior warning, unusual noise, or dashboard indication of any problem. The car shut completely down while still on the highway. Car was towed to the nearest KIA dealer - Columbia Ford/Kia [XXX] ). After diagnosis, the authorized Kia dealer documented the following on Repair Order Invoice W7403: • Concern: "TOW IN. DIED WHILE DRIVING. SEPARATED" • Diagnostic fault code: BMS P1BB20 • Failed/replaced parts: ◦ DECOUPLER-BASFILTR, Part No. SPO 25290 2MHD0 ◦ BOLT-CRANKSHAFT, Part No. KIA 23127 2MHA0 ◦ BATTERY MODULE ASSY, Part No. SPO 37507 L5000 • Parts total: $835.54 • Vehicle in dealer possession: March 5, 2026 – March 20, 2026 (15 days) complete loss of motive power at highway speed. Based on my subsequent research, this failure mode appears consistent with a documented similar issue in the United Kingdom and European markets - which did result in a recall. -hybrid belt/tensioner system. Kia issued revised parts and ECU updates in those markets. No equivalent safety recall or consumer notification has been issued in the US. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.

3 times in the last two days, and dozens of times over the last six months, while driving or while idling, the "check hybrid system" warning has flashed. When it happens the car does into limp mode, where it will go no faster than 13mph. this has happened in the left lane of a highway where there is no where to pull over except the lane, since there is no time to get over before the vehicle shuts down. the car essentially will shut down in the middle of driving, no matter where it is. Especially with my kids in the car it is terrifying hazard. I have brought the car to the Kia service and since its not easily reproducible they have not been able to help and have offered no solutions.

While driving, the vehicle repeatedly displays “Check Hybrid System – Stop Safely”, followed by loss of acceleration and shutdown of the 12V system, rendering the vehicle unable to drive. These incidents occurred on both freeways and local roads. To avoid a collision, I was forced to activate hazard lights, pull over, shut the vehicle off, and attempt recovery using the 12V reset procedure or an external jump starter. The issue has persisted despite multiple dealer inspections and repairs and presents a serious safety risk.