Toyota Motor Corporation has suspended daytime operations at 12 of 14 plants in Japan due to an ongoing systems glitch, though it said it doesn’t suspect it’s the victim of a cyberattack.
All 14 plants will be offline Tuesday night, according to a spokesperson. It’s not yet clear when operations will resume.
Some 25 assembly lines across the dozen plants have been halted Tuesday while orders for parts can’t be placed due to a malfunction in the production command system, the spokesperson said.
“At this point we do not believe a cyberattack is responsible,” they said, adding that the glitch currently appears limited to domestic plants.
Toyota’s Miyata plant in Fukuoka prefecture and the Kyoto operations of subsidiary Daihatsu Motor Co. are unaffected.
The world’s biggest carmaker had to shut all 14 of its domestic plants in February 2022 after one of its suppliers was subjected to a ransomware attack. It took several days for operations to recover, and the incident impacted about 5% of Toyota’s output for the month.
In July, a suspected Russian ransomware attack crippled Japan’s biggest port in Nagoya. Toyota, which relies heavily on the port, said shipments were temporarily halted but there was no impact on production.
Toyota produced and sold a record number of vehicles in June as operations continued to recover from a shortage of semiconductors and other parts.
