Mustang Mach-E Delays Likely Related To Software Update Ford’s transparency about delays has ruffled some owners’ feathers while others seem to understand. The delay is rumored to be related to a software issue, perhaps having to do with Ford’s Drive Assist 2.0 system. Similar delay occurred for 2021 Ford F-150 too. Advertisement Buried at the end of my story about General Motors perhaps following the Mach-E’s suit and making a Corvette sub-brand that could include a Corvette SUV, was another bit of information regarding the Mustang Mach-E. I had mentioned that owners received a letter from Ford explaining that their Mustang Mach-E had been delayed. This came right after customers were notified of completion of their Mach-E in production. So it begged the question, what would cause a last-second delay after production.