August 30, 2023: On Tuesday, Toyota stopped 12 plants in its home market and added the previous two in the afternoon.

The glitch prevents Toyota from including members, and its cause is under examination, though it is “likely not because of a cyberattack,” a spokesperson said.

It needed to be explained how, especially output, would be lost.

Reuters calculations established that the plants account for about a third of the automaker’s international production.

Toyota’s domestic version had reversed after a series of output cuts it accused of the semiconductor shortage. Work was up 29% in January-June, the gain in two years.

 Japan’s output averaged about 13,500 vehicles daily in the year’s first half. That excludes cars from class automakers Daihatsu and Hino.

Operations were halted for a day in the previous year when a supplier suffered a cyberattack, hindering Toyota’s ability to order parts. Toyota resumed operations utilizing a backup network.

Tuesday’s incident is holding a knock-on effect. Group firm Toyota Industries said it has partially stopped operations at two engine plants due to the automaker’s glitch.

Toyota pioneered stock management, which keeps down costs but means supply chain snaps set production at risk.

While the cause of the various delinquent malfunctions was unclear, corporate Japan has been on alert recently as businesses and country offices reported harassing phone calls.

The government expressed the rings were likely from China and related to Japan’s release of feted radioactive water from the wrecked Fukushima nuclear power works into the Pacific Ocean.

Toyota’s share worth was awake 0.12% at 2,439 yen in afternoon trade after spending much of the morning in hostile territory.