Tesla’s feature that automatically changes lanes when the turn signal is activated is called Auto Lane Change.
Auto Lane Change belongs to Tesla’s Autopilot-related driver-assistance features. When enabled and available, the system can steer the vehicle into an adjacent lane after the driver indicates the intended maneuver with the turn-signal stalk. The car still requires the driver to supervise the road and remain responsible for controlling it.
The feature is commonly confused with Navigate on Autopilot. Navigate on Autopilot uses a route and highway context to suggest or perform certain lane changes as part of navigating between entrances and exits. Auto Lane Change is the narrower feature: it handles a driver-requested lane change rather than managing an entire planned highway route.
Auto Lane Change is also distinct from Traffic-Aware Cruise Control, which adjusts speed and following distance, and Summon, which moves the car remotely in parking situations. Availability and operating behavior have varied by vehicle hardware, software version, market, and the driver-assistance package purchased.