
1) GM option 2) Amenity in a GM vehicle 3) Auto navigation system 4) Automotive safety technology 5) Big name in car monitors 6) Car safety system brand 7) Car security system 8) Chevy amenity 9) Emergency-assistance system 10) General motors subsidiary 11) GM brand 12) GM car safety tracker 13) GM navigation subsidiary
Found on
https://www.crosswordclues.com/clue/onstar

OnStar Corporation is a subsidiary of General Motors that provides subscription-based communications, in-vehicle security, hands free calling, turn-by-turn navigation, and remote diagnostics systems throughout the United States, Canada and China. A similar service is known as ChevyStar in Latin American markets. In September 2011 the president of ...
Found on
http://en.wikipedia.org/wiki/OnStar
No exact match found.