The automaker said parts such as semiconductors and wire harnesses are in short supply because of bottlenecks triggered by lockdowns in southeast Asia.
The automaker will reduce output again in November, but the impact will not be as painful as before and Toyota sees signs of recovery on the horizon.
Toyota said it would slash its global production plan for April by 150,000 units to 750,000 vehicles, compared with the original schedule reported to suppliers earlier this year.
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 appeal filing comes just days after the American – free from Japan on a suspended sentence – had a tearful homecoming to Tennessee and ensures his years-long legal odyssey will drag on.
Prosecutors made the case against the American defendant as they delivered their closing argument in the long-running trial.
Mazda says U.S. demand for its vehicles is robust enough to support price hikes, as the company notches record-low incentives on crimped production and tight inventories.
Japan's automakers absorbed the challenges of the fiscal year just ended. Despite worries over rising costs, they see a brighter year ahead.