Super Cruise’s self-drive mode primarily relies on LiDAR sensors (The Tesla S, X, and 3 models produced since October have none), cameras, and radar sensors. For mapping, Super Cruise reportedly relies on data from GeoDigital, in which GM is an investor, which offers over 160,000 miles of highway data in the US and Canada.

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It makes perfect sense that a liability averse company like GM will play it safe (this is a safety feature, not a novelty), besides Super Cruise was almost ready for release years ago before it would have been considered a self-driving feature.