Tesla Inc. is temporarily suspending production of the Model 3 sedan for at least the second time in roughly two months, just after Elon Musk admitted to mistakes that hindered his most important car.

The company informed employees that the pause will last four to five days, Buzzfeed reported. A Tesla spokesman referred back to a statement provided last month, when Bloomberg News first reported that Model 3 production was idled from Feb. 20 to 24. The carmaker said then that it planned periods of downtime at both its vehicle and battery factories to improve automation and address bottlenecks.

The hiatus is another setback for the first model Musk has tried to mass-manufacture. In addition to trying to bring electric vehicles to the mainstream, the chief executive officer had sought to build a competitive advantage over established automakers by installing more robots to quickly produce vehicles. Last week, he acknowledged “excessive” automation at Tesla was a mistake.

It’s more than the lure of automation that has done the damage.

It is the fact that they hold assembly workers in contempt, and this has driven the excessive automation.

Another artifact of this disdain is the fact that it has been concealing assembly line injuries from regulators as well:

Inside Tesla’s electric car factory, giant red robots – some named for X-Men characters – heave car parts in the air, while workers wearing black toil on aluminum car bodies. Forklifts and tuggers zip by on gray-painted floors, differentiated from pedestrian walkways by another shade of gray.

There’s one color, though, that some of Tesla’s former safety experts wanted to see more of: yellow – the traditional hue of caution used to mark hazards.

Concerned about bone-crunching collisions and the lack of clearly marked pedestrian lanes at the Fremont, California, plant, the general assembly line’s then-lead safety professional went to her boss, who she said told her, “Elon does not like the color yellow.”

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What she and some of her colleagues found, they said, was a chaotic factory floor where style and speed trumped safety. Musk’s name often was invoked to justify shortcuts and shoot down concerns, they said.

Under fire for mounting injuries, Tesla recently touted a sharp drop in its injury rate for 2017, which it says came down to meet the auto industry average of about 6.2 injuries per 100 workers.

But things are not always as they seem at Tesla. An investigation by Reveal from The Center for Investigative Reporting found that Tesla has failed to report some of its serious injuries on legally mandated reports, making the company’s injury numbers look better than they actually are.

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Instead, company officials labeled the injuries personal medical issues or minor incidents requiring only first aid, according to internal company records obtained by Reveal.

Undercounting injuries is one symptom of a more fundamental problem at Tesla: The company has put its manufacturing of electric cars above safety concerns, according to five former members of its environment, health and safety team who left the company last year. That, they said, has put workers unnecessarily in harm’s way.

Tesla may be the future of electric cars, but it it is, it means that the future of electric cars sounds a lot like Walmart.