ENGINE2022 Buick Encore GX its involvement in the following critical issues: 1)especial coverage N242484750 turbo replacement not cost. Recall A222379711 (ECM Oil Pressure Sensor software)Malfunction. β A known issue where the Engine Control Module (ECM) fails to properly clear the permanent status of DTC P0521 (Engine Oil Pressure Sensor Performance). Turbocharger Failure β A separate cause-efect related defect in which the turbocharger in my vehicle has failed, a Check Engine Light (MIL) activation/deactivation and a reduction in engine performance(*screen critical message.) resulting in a loss of power and critical malfunction that need replacement 3)Failure of GM and the Dealership to Provide Proper Documentation β Despite GM authorizing and the dealership supposedly completing only the recall software update. I have not received the necessary official documentation or compliance certification that the repair was performed, which is required by my state's Department of Motor Vehicles (DMV) for emissions and registration purposes.I was not noticed recall GMβs Improper Denial of Warranty Coverage for Turbocharger Failure β GM has refused to cover the turbocharger replacement under warranty,especial coverage N242484750 citing that my vehicle has a salvage title. However, my past accident only caused exterior damage and did not affect the engine, it passed DMV and all state verifications, accident has not relation or affectation with turbocharger, or any mechanical components related to this recall. If the turbo failure is a result of this recall and a factory defect, GM extended coverage at warranty and is still responsible, regardless of the title status. 2. The Relationship Between ECM Oil Pressure Sensor Issue & Turbocharger Failure exist cause sending incorrect amounts of oil to them While GM has treated these as separate issues, there is strong evidence to suggest that the ECM oil pressure issue directly contributed to the premature turbocharger failure.