Discussions elsewhere:

The TL;DR:

“Tesla requested redaction of fields of the crash report based on a claim that those fields contained confidential business information,” an NHTSA spokesperson told Insider in a statement. “The Vehicle Safety Act explicitly restricts NHTSA’s ability to release what the companies label as confidential information. Once any company claims confidentiality, NHTSA is legally obligated to treat it as confidential unless/until NHTSA goes through a legal process to deny the claim.”