07-09 Hyundai Models Transmission Gear Position Switch 42700-23000 Reliable and Durable

07–09 Hyundai Sonata, Elantra, Tucson model’s transmission gear position switch (OEM 42700-23000/23010/23015) uses a high-density engineering plastic housing and gold-plated contacts; resistant to oil contamination and high-temperature aging; lifespan not less than original. Function: transmit P/R/N/D gear signals to the transmission control unit to ensure accurate gear logic and avoid erroneous instrument readings or startup issues. Replacement difficulty moderate; professional technician recommended; install by cleaning mounting surface. If shifting hesitancy or startup is problematic, replace this switch.