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NHTSA defect investigation · Preliminary Evaluation

Tesla preliminary evaluation PE21020

Autopilot & First Responder Scenes. NHTSA’s Office of Defects Investigation opened this preliminary evaluation about the adas on 27 model years (2014–2022). Opened Aug 13, 2021, closed Jun 8, 2022 after 10 months without a recall. closed

What NHTSA says

Source: Office of Defects Investigation, as filed

On August 13, 2021, NHTSA?s Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE21-020) to assess the performance of Tesla?s Autopilot system (a system characterized by Tesla as an SAE Level 2 driving automation system designed to support and assist the driver in performing the driving task) available in Tesla vehicles. The investigation opening was motivated by an accumulation of crashes in which Tesla vehicles, operating with Autopilot engaged, struck stationary in-road or roadside first responder vehicles tending to pre-existing collision scenes. Upon opening the investigation, NHTSA indicated that the PE would also evaluate additional similar circumstance crashes of Tesla vehicles operating with Autopilot engaged, as well as assess the technologies and methods used to monitor, assist, and enforce the driver?s engagement with the dynamic driving task during Autopilot operation. PE21-020 is upgraded to an Engineering Analysis (EA) to extend the existing crash analysis, evaluate additional data sets, perform vehicle evaluations, and to explore the degree to which Autopilot and associated Tesla systems may exacerbate human factors or behavioral safety risks by undermining the effectiveness of the driver?s supervision. In doing so, NHTSA plans to continue its assessment of vehicle control authority, driver engagement technologies, and related human factors considerations. The attached Detailed Summary further describes NHTSA?s review to date and the basis for upgrade to an EA.

Stage Preliminary Evaluation — NHTSA works to complete one within eight months Opened Aug 13, 2021 Closed Jun 8, 2022 Manufacturer Tesla, Inc. Components Electrical System › Adas

A Preliminary Evaluation is the first formal stage: NHTSA has decided the complaints and other information it screened are worth a closer look, and asks the manufacturer for its own data on the condition. The summary is the agency’s own text from its investigation file, unedited; the resumes carrying the full reasoning are linked below.

The paperwork NHTSA filed

Source: every document on this action, at nhtsa.gov
DocumentCodeFiledAt NHTSA
Opening resumeINOA2021PDF
Closing resumeINCLA2021PDF
Information request to the manufacturerINIM202114 files 1234567891011121314
Manufacturer's response — dataINRD202119 files 12345678910111213141516171819
Manufacturer's response — full submissionINRL20213 files 123
Memo to the investigation fileINME20212 files 12

40 of 92 documents shown; the rest are under this number at nhtsa.gov.

These are NHTSA’s own files, served from the agency’s site — the resumes are what ODI wrote when it opened and closed the action, and the rest is the correspondence behind them, including what the manufacturer sent when the agency asked. They are linked, not copied: where a document names the people who wrote in, that redaction is the agency’s to make and its copy is the one you should read.

What owners had already reported

Source: complaints on file the day it opened

When NHTSA opened this on Aug 13, 2021, owners had filed 2,861 complaints with the agency about the model years above, of which 440 named the electrical system NHTSA went on to investigate. Owner complaints are the agency’s main early signal: ODI screens them, and a Preliminary Evaluation is usually where a pattern in them ends up.

This is what the complaint file held on that date, not a claim about which reports prompted the investigation — NHTSA’s complaint records carry no investigation number, so nobody can make that link from the data alone. The opening resume linked above names the reports ODI itself cited. Complaint records on this site begin with 2016.

What this means for an owner

Source: and what happens next

An investigation is not a finding that a defect exists, and it puts no duty on anyone. NHTSA opens a Preliminary Evaluation when complaints and other reports suggest a condition worth asking the manufacturer about; it upgrades to an Engineering Analysis when the answers warrant testing; it closes either when it recommends a recall, when the manufacturer recalls on its own, or when no defect trend is found. The agency’s own goals are about four months for a petition, eight for a Preliminary Evaluation or a Recall Query and eighteen for an Engineering Analysis; many run longer.

This one closed without a recall. That means NHTSA found no defect trend it chose to act on at the time, or the manufacturer addressed the condition another way (a service campaign or a bulletin, which have their own pages). A closed file can be reopened if new reports arrive.

Model years it names

Source: as NHTSA filed them

Also named on model years this site has no page for: 2014 Tesla Model S; 2015 Tesla Model S; 2015 Tesla Model X.

A vehicle page’s investigation list carries the same action; a name here is the scope NHTSA opened, not a list of affected VINs.

Common questions

Source: NHTSA Office of Defects Investigation

Is PE21020 a recall?

No. A preliminary evaluation is NHTSA asking questions, not a recall. A safety recall carries an NHTSA campaign number and a duty to repair for free; this one closed without one. Whether one particular vehicle has an open recall is a VIN question at nhtsa.gov/recalls.

Is PE21020 still open?

No. It closed on Jun 8, 2022 without a recall.

Which vehicles does PE21020 cover?

NHTSA opened it on 27 model years: 2022 Tesla Model 3, 2021 Tesla Model 3, 2020 Tesla Model 3, 2019 Tesla Model 3, 2018 Tesla Model 3, 2017 Tesla Model 3 and more. That is the scope of the inquiry, not a list of affected vehicles; a recall, if one follows, defines its own population by VIN.