At the Ford Assembly Plant near the Halton–Peel regional boundary, Highway 403 branches off from the QEW and heads north for along the western edge of Mississauga. Here it interchanges with Highway 407 again, but at the junction the two freeways curve at 90 degrees to avoid crossing each other. Highway 407 continues to the north and west, while Highway 403 turns east to follow alongside a hydro corridor through the centre of Mississauga. From this interchange to Highway 401, high-occupancy vehicle (HOV) lanes are present in the shoulder lanes for vehicles with at least one passenger. Sandwiched between residential subdivisions on both sides, the freeway soon thereafter crosses the Credit River.