Hyundai Elantra Shift Position Sensor 42700-23010/23015 for Automatic Transmission

For Hyundai Elantra automatic transmission models, if the gear indicator on the instrument cluster does not illuminate, jumps, or the car cannot move out of Park on startup, or shifting is jerky during driving, this is usually caused by wear or incorrect signals from the gear position sensor. The sensor accurately transmits gear position signals to the Transmission Control Unit (TCU) to ensure proper shifting logic and interlock functionality. Applicable models: Hyundai Elantra, OEM numbers 42700-23010 / 42700-23015. Installation notes: disconnect the battery negative first, mark installation angle before removing the old sensor, and perform gear position learning calibration after installing the new sensor to avoid shifting delays or fault lights.