A key supplier of semiautonomous car technology ended a supply agreement with Tesla Motors Inc. following a high-profile traffic fatality in May involving one of the Silicon Valley company’s electric vehicles.

Mobileye NV said it would no longer provide its computer chips and algorithms to Tesla after a current contract ends due to disagreements about how the technology was deployed. Mobileye provides core technology for Tesla’s Autopilot system, which allows cars to drive themselves in limited conditions.

...