At the
1932 Summer Olympics near
Los Angeles, it hosted part of the
road cycling event when it was Vineyard Avenue. Route 154 was defined in 1933 from El Rio to Saticoy; the route was renumbered as SR 232 in the
1964 state highway renumbering. By 2014, the route was redefined to start at US 101, eliminating the section between US 101 and former SR 1 along Oxnard Boulevard in Oxnard that had been relinquished. ==Major intersections==