← Cases
United StatesManufacturing2025 – ongoing

Toyota Motor North America

Multimodal LLM on repair manuals and trouble tickets for process-engineer troubleshooting

Toyota North America's AI chief says a calibration-reset task fell from 7 hours to about 15 seconds with a multimodal LLM

WorkingCompany's own claim

Problem

Process engineers had to troubleshoot line-level machinery such as calibration resets, which involves G-code and large manuals that cannot be searched easily. A single issue could take hours.

Approach

Toyota Motor North America fed repair manuals, trouble tickets and video documentation, some newly digitized, into a multimodal LLM. The result was a set of knowledge tools that cut diagnosis time and gave newer employees access to veteran-level know-how. The company also used AI coding tools for developers.

Results

15 secondstime for one calibration-reset troubleshooting task before and after AI assistance, as described by Toyota's head of enterprise AI; a single exampleCompany's own claim[1]
at least 20%productivity increase for developers using AI coding tools, per Toyota's head of enterprise AI, who cited a study from about a year earlierCompany's own claim[1]

Takeaway

The large time cut was reported for one calibration-reset task, so it is a single example. The developer gain comes from an earlier study.

Categories

Innovation type
Process innovation
AI technology
Generative AI
Evidence
Company's own claim

Sources

Source summaries

[1]CDO Magazine1 Apr 2025

An interview with Brian Kursar, head of enterprise AI at Toyota Motor North America. He described a multimodal LLM built on manuals, trouble tickets and video, and said one troubleshooting task dropped from seven hours to 15 seconds. He also said developer productivity rose by at least 20%, based on an earlier study.

Full details are in the original sources.

Added 2 Nov 2026 · Updated 2 Nov 2026
Open case page ↗