What driver-assistance system did Tesla introduce in 2014?

Tesla introduced its Autopilot driver-assistance system in 2014.

The first Autopilot hardware was introduced with the Tesla Model S in October 2014. It used cameras, radar, ultrasonic sensors, and computing hardware to support functions such as lane centering and adaptive cruise control, depending on the vehicle and software version.

Autopilot is a driver-assistance system, not a guarantee that a vehicle can drive without human supervision. Tesla instructs drivers to keep their hands on the wheel and remain attentive. The capabilities available under the Autopilot name have changed over time through software updates and hardware revisions.

Full Self-Driving is a separate Tesla option and branding category, although it also requires active driver supervision. Navigate on Autopilot is a feature that operates within the broader Autopilot ecosystem, rather than the original name of the system itself.