Toyota had been aiming for a high February production plan to meet strong demand.
Toyota's overseas output climbed 5.6 percent to 3.35 million vehicles through June, while production in Japan fell 18 percent to 1.73 million.
The production upgrades at the Hofu H2 assembly plant in western Japan will underpin upcoming production of new vehicles.
EV production should account for about 40 to 50 percent of Honda's total output in North America in 2030, or around 800,000 battery-electric vehicles.
The industry is settling into the new year acknowledging that it's not out of the woods yet on chip shortage disruptions.