Tesla Autopilot is an advanced driver-assistance system (ADAS) developed by Tesla that amounts to partial vehicle automation. Tesla provides "Base Autopilot" on all vehicles, which includes lane centering and traffic-aware cruise control. Owners may purchase an upgrade to "Enhanced Autopilot" (EA) which adds semi-autonomous navigation on limited access roadways, self-parking, and the ability to summon the car from a garage or parking spot. The company claims the features reduce accidents caused by driver negligence and fatigue from long-term driving. Collisions and deaths involving Tesla cars with Autopilot engaged have drawn the attention of the press and government agencies.

Advanced driver-assistance systems (ADAS) are technologies that assist drivers with the safe operation of a vehicle. Through a human-machine interface, ADAS increase car and road safety. ADAS use automated technology, such as sensors and cameras, to detect nearby obstacles or driver errors, and respond accordingly. ADAS can enable various levels of autonomous driving.