NHTSA gave Tesla six more weeks on eight of its FSD information requests
A memo in the Engineering Analysis docket shows Tesla asked on August 5 for a partial extension of the August 12 deadline, and that the agency granted September 23 for eight questions, including the one covering modifications to the software.
A memo posted to the docket of NHTSA’s Engineering Analysis EA26002 records that Tesla requested a partial extension of time to answer the agency’s information request, and that the Office of Defects Investigation granted it.
The memo, dated August 6, documents a request submitted by Tesla on August 5. The original due date for the company’s response to information request letter EA26002-01, which the agency issued on July 2, was August 12. ODI granted extensions to September 23 for eight questions: Q3, Q4, Q5, Q9, Q10, Q11, Q13 and Q16. In each case Tesla asked for six additional weeks and the date granted matched the date requested. The memo states that for any question not listed in its table, Tesla would submit its response by August 12 as originally specified.
The justifications recorded against each question describe the work as locating and compiling material. The entry for Q11 says that identifying all modifications, changes and updates, and compiling the supporting information, would take more time than the August 12 date allowed.
NHTSA opened EA26002 on March 18, upgrading it from a preliminary evaluation, to assess whether Tesla’s Full Self-Driving detects degraded roadway visibility and warns the driver in time to respond. As of August 13 the docket held four documents, and no response from Tesla had been posted.
Source: NHTSA Office of Defects Investigation, August 6, 2026.