Hyundai Automatic Transmission Gear Position Switch Sensor 42700-3B000 Direct Replacement

Modern automatic transmission gear position sensor (OEM 42700-3B000) directly replaces the factory part; high universality, no additional modifications. Core function is to transmit gear position signals to the transmission control unit to ensure accurate shifting logic. Fits Sonata, Elantra, Tucson, and various automatic-transmission models. After installation, can fix shifting jitter, incorrect or non-starting gear displays on the instrument cluster. If starting in P or N is difficult, or shifting responds slowly while driving, sensor aging is the likely cause; replacement recommended for safe driving.