Holding the left steering wheel button or saying, "Hey, Rivian," tells the assistant to start listening. The basic vehicle control functions range from the familiar -- call Mom, navigate home, adjust the temperature, etc. -- to more advanced tasks like changing drive modes, adjusting ride height, opening the front trunk or checking range-on-arrival estimates. The utility of such voice commands is proven and well-covered. More interesting are the context-aware commands. Instead of requiring precise phrasing, the assistant parses natural language and interprets intent. Rivian's own example -- "M