Does anyone know how to disable the seatbelt alarm? My Matrix has a sort of up down left right start select thing that disables the seat belt chime. 2012 LTZ turbo daily 2015 LTZ turbo (totaled) 2017 LT/RS turbo. Explore the 2020 Chevy Sonic small car, available with hatchback and sedan options, new technologies, advanced safety features, a fuel efficient engine, & more. 2020 Chevy Sonic Hatchback & Sedan Small Car. Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint.