{"schema_version":"0.10.0","id":"LR-2026-0523","record_version":1,"title":"Self-driving Tesla veers into guardrail in Connecticut highway crash","verification":{"human_verified":false,"method":"automated_gate","auto_verified":true,"score":46.6,"score_breakdown":{"source_authority":12.1,"independent_corroboration":7.0,"implicated_party_confirmed":0.0,"citation_integrity":14.0,"specificity":3.0,"completeness":3.2,"unhedged_language":5.0},"checks":{"schema_valid":true,"every_field_cited":true,"quotes_verbatim":true,"source_fetched":true,"distinct_incident":true,"dates_plausible":true,"sources_agree":true,"source_describes_incident":true,"severe_backed_by_source":true,"record_integrity":true,"eligible":true,"about_this_case":true},"gate_version":"gate-2026-10-18.7","cross_check_model":null,"cross_check_agreement":null,"duplicate_of":null,"verified_by":null,"verified_at":"2026-11-01","extraction_run_id":null,"evidence_level":{"level":"preliminary","reason":"Publisher not yet named · subject to change","original_document":null,"reports_total":1,"reports_independent":0,"reports_derivative":0,"developing":false,"disputed":false,"rules_version":"evidence-2026-10-29.1","computed_at":"2026-11-01","history":[{"date":"2026-11-01","from_level":null,"to_level":"preliminary","reason":"Publisher not yet named · subject to change"}]},"sources_hash":"59711e8c888eee7af0983842f39d6d5de10aee5d7d11cf7ec88ea5dd6bf3bbdc"},"system":{"model_name":"Tesla Model 3","model_version":"2026","developer":"unknown","harness":null,"tools_granted":[],"permissions_scope":null,"autonomy_level":"unknown","guardrails_present":[],"deployment_context":"unknown","tier":null,"lifecycle_stage":null,"integration_type":null,"intended_use":null,"safeguard_state":null,"production_intended":null},"event":{"date_occurred":null,"date_disclosed":"2026-04-15","incident_class":"other","failure_class":null,"agent_involved":true,"secondary_failure_classes":[],"trigger":"unknown","duration":null,"detection_method":"unknown","summary":"A 2026 Tesla Model 3 was being driven in auto self drive mode in the left lane of Interstate 84 west in Union, Connecticut, on a Sunday, according to state police. The agency said the car spontaneously veered left into the center median and its front driver side struck a metal beam guardrail, causing disabling damage. The driver, a 47-year-old woman, was not hospitalized, and state police said she was not distracted and was wearing her seatbelt. About 10 feet of guardrail was damaged and the car had to be towed from the scene. The source does not state which driver assistance mode was active, and the automaker's website says all of its modes require active driver supervision.","tags":[],"date_detected":null,"near_miss":null,"root_cause":null,"root_cause_detail":null,"failure_class_detail":null,"responsible_party":null,"adversarial_actor":null,"input_provenance":null,"time_to_contain":null,"operations_paused":null,"remediation":null,"precursor_events":null},"impact":{"direct_loss_usd":null,"remediation_hours":null,"records_exposed":null,"third_parties_affected_count":null,"severity":"minor","severity_because":"Minor test: damage limited to one vehicle and about 10 feet of guardrail; no injury, data or third-party count is stated.","harm_class":[],"affected_description":null,"protected_class_involved":null,"data_categories_exposed":[],"loss_range_usd":null,"reversibility":null,"downstream_exposure_count":null},"evidence":{"sources":[{"url":"https://www.ctinsider.com/news/article/union-tesla-self-driving-i-84-crash-22207573.php","publisher":"CT Insider","date":"2026-04-15","type":"press","title":"Self-driving Tesla involved in CT highway crash 'spontaneously veered' into guardrail, police say - CT Insider","archived_url":null,"attachment":"first_report"}],"per_field_confidence":{"system.model_name":"C","system.model_version":"C","event.agent_involved":"C","context.country":"C","event.incident_class":"D","impact.severity":"D","impact.severity_because":"D","event.summary":"C","system.autonomy_level":"D","system.deployment_context":"D","event.trigger":"D","event.detection_method":"D","system.developer":"D","event.date_disclosed":"D","context.denominator_available":"D"},"field_citations":{"system.model_name":[{"source_index":0,"quote":"The agency said the 2026 Tesla Model 3 was driving straight in the left lane in \"auto self drive mode\" Sunday when it \"spontaneously veered left\" into the center median."}],"system.model_version":[{"source_index":0,"quote":"The agency said the 2026 Tesla Model 3 was driving straight in the left lane in \"auto self drive mode\" Sunday when it \"spontaneously veered left\" into the center median."}],"event.agent_involved":[{"source_index":0,"quote":"A Tesla in self-driving mode was involved in a crash on Interstate 84 west in Union over the weekend, according to Connecticut State Police."}],"context.country":[{"source_index":0,"quote":"A Tesla in self-driving mode was involved in a crash on Interstate 84 west in Union over the weekend, according to Connecticut State Police."}],"event.incident_class":[{"source_index":0,"quote":"A Tesla in self-driving mode was involved in a crash on Interstate 84 west in Union over the weekend, according to Connecticut State Police."}],"impact.severity":[{"source_index":0,"quote":"The report indicated about 10 feet of guardrail was damaged in the crash."}],"impact.severity_because":[{"source_index":0,"quote":"The report indicated about 10 feet of guardrail was damaged in the crash."}],"event.summary":[{"source_index":0,"quote":"The agency said the 2026 Tesla Model 3 was driving straight in the left lane in \"auto self drive mode\" Sunday when it \"spontaneously veered left\" into the center median."},{"source_index":0,"quote":"The front driver side of the vehicle struck the metal beam guardrail, \"causing disabling damage,\" state police said in a summary of the crash."},{"source_index":0,"quote":"It said she was not distracted and was wearing her seatbelt at the time of the crash."},{"source_index":0,"quote":"The report indicated about 10 feet of guardrail was damaged in the crash."},{"source_index":0,"quote":"The car had to be towed from the scene."},{"source_index":0,"quote":"It was not immediately clear in which driver assistance mode the Tesla involved in Sunday's crash in Union was being operated."},{"source_index":0,"quote":"The automaker's website notes that all of the modes \"require active driver supervision and do not make the vehicle autonomous.\""}]},"notes_on_gaps":"Only one press source (CT Insider citing Connecticut State Police) was given; the police report itself was not read. The exact date of occurrence is not stated (only Sunday over the weekend, with article dated 2026-04-15), so date_occurred and date_disclosed were left out. The driver assistance mode in use is not established by the sources, so autonomy_level was left out. Judgements: agent_involved set to true because police describe the car in self-driving mode; trigger set to spontaneous from the police description of the veer; deployment treated as production because the crash occurred on a public highway; developer taken as Tesla from the automaker's website reference; severity minor judged on the stated single-vehicle damage with no data or third-party count. No cause, detection method, failure class, controls or remediations are stated, so those fields were left out. The 2016 Model S and 2019 Florida crashes mentioned in the article are other incidents and were not used. [case created by the backfill: read by claude-haiku-5-5, backfill-2026-11-01.2, 2026-11-01; not yet reviewed] [2026-11-01: evidence level set: Preliminary (Publisher not yet named · subject to change)]"},"context":{"industry":null,"org_size_band":null,"country":"US","denominator_available":false,"denominator":null,"related_incident_ids":[],"systemic_exposure":null,"shared_model_id":null,"upstream_incident_id":null,"incident_evidence":null,"regulatory":null,"coverage":null},"narrative":{"steps":[{"step":"doing","text":"According to state police, the 2026 Tesla Model 3 was driving straight in the left lane in auto self drive mode.","quote":"The agency said the 2026 Tesla Model 3 was driving straight in the left lane in \"auto self drive mode\" Sunday when it \"spontaneously veered left\" into the center median.","source_index":0,"grade":"C"},{"step":"went_wrong","text":"The car spontaneously veered left into the center median, according to state police.","quote":"The agency said the 2026 Tesla Model 3 was driving straight in the left lane in \"auto self drive mode\" Sunday when it \"spontaneously veered left\" into the center median.","source_index":0,"grade":"C"},{"step":"reached","text":"The front driver side of the car struck a metal beam guardrail, causing disabling damage.","quote":"The front driver side of the vehicle struck the metal beam guardrail, \"causing disabling damage,\" state police said in a summary of the crash.","source_index":0,"grade":"C"},{"step":"done","text":"The car had to be towed from the scene.","quote":"The car had to be towed from the scene.","source_index":0,"grade":"C"}],"model":"claude-haiku-5-5","prompt_version":"backfill-2026-11-01.2","extracted_at":"2026-11-01","source_urls":["https://www.ctinsider.com/news/article/union-tesla-self-driving-i-84-crash-22207573.php"]},"analysis":{"sections":{"timeline":[{"text":"Tesla in self-driving mode crashed on Interstate 84 west in Union.","quote":"A Tesla in self-driving mode was involved in a crash on Interstate 84 west in Union over the weekend, according to Connecticut State Police.","source_index":0,"when":"over the weekend"},{"text":"Car veered left into the center median while in auto self drive mode.","quote":"The agency said the 2026 Tesla Model 3 was driving straight in the left lane in \"auto self drive mode\" Sunday when it \"spontaneously veered left\" into the center median.","source_index":0,"when":"Sunday"},{"text":"Incident reported near Exit 73.","quote":"The incident was reported around 6:10 p.m. near Exit 73, according to state police.","source_index":0,"when":"around 6:10 p.m."},{"text":"Car towed from the scene after the crash.","quote":"The car had to be towed from the scene.","source_index":0,"when":null}]},"model":"claude-haiku-5-5","prompt_version":"backfill-2026-11-01.2","extracted_at":"2026-11-01","source_urls":["https://www.ctinsider.com/news/article/union-tesla-self-driving-i-84-crash-22207573.php"]}}