2020 Kia Stinger Powertrain & Transmission Problems

I am reporting a Failure of the Remedy for NHTSA Recall 23V634000 (Kia Recall SC281). The original recall attempted to "fix" a High-Pressure Fuel Pump (HPFP) issue via a software update to the Engine Control Unit (ECU). This remedy has failed. My vehicle is currently experiencing the exact safety hazard described in the recall: loss of motive power and stalling at various speeds due to HPFP failure. Despite the software "patch" performed in 2024, the physical hardware (HPFP) has now suffered a mechanical failure, rendering the vehicle unsafe to drive. Description of the Incident: On or about March 15, 2026, the vehicle began lose power and stuttered while in motion, posing a significant risk of a rear-end collision. Diagnostic scans (OBD-II) confirmed code [Insert Code if known, e.g., P0087 for Low Fuel Rail Pressure]. A secondary diagnosis at Courtesy Kia (Mesa, AZ) on March 18, 2026, confirmed the HPFP has failed. Failure of Manufacturer to Act: The manufacturer (Kia America, Case #XXX) is currently refusing to replace the failed component under the recall mandate. They are categorizing the repair as "Goodwill" because the recall was "closed" by the unsuccessful software update. The manufacturer’s refusal to remediate a known mechanical defect that causes stalling in traffic is a direct violation of the spirit and legal requirement of the National Traffic and Motor Vehicle Safety Act. Current Location of Vehicle: Courtesy XXX. The vehicle is grounded as it is unsafe to operate.

Transmission light appeared and a loud knocking noise followed by white smoke bellowing out of the exhaust. I took it to a shop and they said it now needs an engine replacement.