Card key sensor

The Card Key Sensor is an NFC (Near Field Communication) reader that allows Tesla vehicles to detect and authenticate key cards for passive entry and engine start functions. Strategically located on the vehicle's B-pillar and center console, these sensors enable the "tap-to-unlock" and "tap-to-start" features by reading the encrypted signal from the Tesla key card. The sensor communicates with the vehicle's security system to validate the key card's credentials, ensuring secure access while maintaining the sleek, minimalist design of Tesla vehicles without traditional keyholes.