NHTSA Complaint #11696128 — 2017 DODGE CHARGER

While driving on the highway with my 14-year-old child as a passenger, the vehicle began shaking/jerking and losing power. I activated hazard lights and exited; the car continued to struggle and is now parked due to safety concerns. O’Reilly scan P0304 (Cylinder 4 misfire). This occurred 12,703 miles after a dealer-performed tune-up (spark plugs x6) at Cable Dahmer CDJR (Kansas City, MO). Same-day after that service I returned, reported drivability issues, and the dealer claimed ‘no problem.’ In Feb 2025 they recommended spark plugs again; in March 2025 management emailed that my ‘tune-up appears it hasn’t been done yet’ (contradicting the invoice). The dealer now refuses to treat this as a continuation without a $199 diagnostic. Vehicle is not being driven due to safety concerns.-Engine/Ignition System-cylinder 4 misfire (spark plug/coil) causing loss of power at highway speed