This route connected York University to Sheppard West (formerly Downsview Station) and Sheppard-Yonge Stations. It serviced the York University Busway, Dufferin Street and Allen Road between the York University Busway and Sheppard Avenue West, and Sheppard Avenue West between Allen Road and Yonge Street, making express stops along the route at major intersections only.
During weekdays, outbound buses from York University served Sentinel Drive before noon, while inbound buses to York University served Sentinel Drive after noon.
September 3, 2000 - Early evening service (7:00 PM to 9:15 PM) begins on weekdays.
September 7, 2004 - Routing is changed to operate over the fastest possible route between Downsview Station and York University. Buses will operate via Sheppard Avenue West, Tuscan Gate, St Regis Crescent, and Keele Street to route instead of via Dufferin Street and Finch Avenue West.
November 23, 2008 - Service extended to 1:00am every day between Downsview Station and York University.
November 20, 2009 - Routing revised to operate along the new York University Busway between Dufferin Street and Keele Street. Buses will return to using Dufferin Street.
November 21, 2010 - Route made accessible and bike-rack equipped.
December 17, 2017 - Route is discontinued and service to York University is replaced with the new Line 1 subway extension.
Overnight service
Overnight service was not provided, however, the route operated until 1:00 AM every day.