Ford's experiment with heavy AI reliance has been scaled back after it failed to deliver expected results, with veteran engineers brought back to restore quality.

"Mistakenly we thought that by just introducing artificial intelligence ... that would produce a high-quality product.”

The automaker tried the technology for automated quality control, but it was unable to detect enough problems.

Ford Motor Co. is re-emphasizing human expertise to combat persistent quality issues, bringing in hundreds of veteran engineers to train its AI systems. This strategic shift,…