Incident: Tesla Lithium-Ion Battery Fire Incident on Interstate 80.

Published Date: 2022-11-18

Postmortem Analysis
Timeline 1. The software failure incident involving a Tesla catching fire occurred on a Tuesday around 11:00 am [135428]. 2. Published on 2022-11-18 08:00:00+00:00. 3. The incident likely occurred on a Tuesday in November 2022.
System unknown
Responsible Organization unknown
Impacted Organization unknown
Software Causes unknown
Non-software Causes 1. The failure incident was caused by the car's lithium-ion battery, which led to the fire and reignition of flames [135428]. 2. The incident was triggered by encountering a large piece of debris on the highway that became trapped under the car, leading to the engine smoking and eventually catching fire [135428]. 3. The risks associated with lithium-ion batteries, including their flammability when damaged, contributed to the failure incident [135428]. 4. The incident was also influenced by the technology used in Tesla vehicles, particularly the lithium-ion batteries, which can combust due to their charging characteristics and potential for extraordinary temperatures if damaged [135428].
Impacts unknown
Preventions 1. Implementing more robust battery management systems in electric vehicles to prevent overheating and potential fires [135428]. 2. Conducting thorough testing and quality assurance processes on the software controlling the battery systems in electric vehicles to detect and address any potential issues before they lead to incidents [135428]. 3. Providing comprehensive training for emergency responders on how to handle electric vehicle fires safely and effectively, considering the unique challenges they pose [135428].
Fixes 1. Implementing enhanced battery management systems in Tesla vehicles to prevent overheating and potential fires [135428]. 2. Conducting thorough investigations into the root causes of Tesla battery fires to identify any software or design flaws that may be contributing to the incidents [135428]. 3. Enhancing training and preparedness for emergency responders to effectively handle Tesla battery fires, considering the unique challenges they pose [135428]. 4. Collaborating with battery technology experts and industry groups to address safety concerns and develop best practices for handling lithium-ion battery-related incidents [135428].
References 1. Morris Township Volunteer Fire Company [Article 135428] 2. Columbia Volunteer Fire Company [Article 135428] 3. Massachusetts Institute of Technology materials chemistry professor Dr. Donald Sadoway [Article 135428] 4. U.N. aviation agency [Article 135428] 5. Battery industry group leader James Greenberger [Article 135428] 6. Sacramento Metropolitan Fire District [Article 135428] 7. San Ramon Valley Firefighters [Article 135428] 8. Nashua Fire Rescue [Article 135428]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization, multiple_organization (a) The software failure incident having happened again at one_organization: - Tesla vehicles have undergone recalls for various reasons over the last 12 months but none for battery issues [135428]. - Earlier this year, a white Tesla Model S spontaneously burst into flames in a Rancho Cordova, California wrecking yard after the car had spent weeks sitting there after a collision [135428]. - In December 2020, a San Ramon, California house was burned to the ground after the homeowner's two Teslas caught fire in the middle of the night. An investigation by the San Ramon Valley Firefighters narrowed down the cause of the fire to either the car's electrical system or the battery [135428]. - While in April this year, a Tesla in Nashua, New Hampshire that had hit a tree and caught fire was transferred to a tow company lot after the initial fire was extinguished, but the vehicle caught fire again due to the battery combusting [135428]. (b) The software failure incident having happened again at multiple_organization: - The article mentions that lithium-ion batteries, which are used in Tesla vehicles, have been associated with risks such as fires due to their technology [135428]. - Over the years, problems with lithium-ion batteries have triggered fires involving various devices and vehicles, not limited to Tesla cars [135428]. - A U.N. aviation agency in 2016 stated that lithium-ion batteries shouldn't be shipped on passenger planes due to safety concerns [135428]. - The article highlights that the battery industry is concerned about recent fires involving lithium-ion batteries and worries about consumer perception and safety [135428].
Phase (Design/Operation) design Unknown
Boundary (Internal/External) within_system, outside_system The software failure incident related to the Tesla battery fires can be categorized as both within_system and outside_system failures: (a) within_system: The incidents of Tesla battery fires can be attributed to issues within the system, specifically related to the design and technology of the lithium-ion batteries used in Tesla vehicles. The articles highlight that the lithium-ion batteries in Tesla vehicles, which are a relatively new introduction to the auto industry, have the potential to combust due to their technology [135428]. The incidents involving Tesla vehicles catching fire and the challenges faced by firefighters in extinguishing the flames point to internal system issues related to the batteries themselves. (b) outside_system: On the other hand, the incidents also involve contributing factors that originate from outside the system. For example, in one of the incidents, a family's Tesla caught fire after encountering a large piece of debris on the highway, which became trapped under the car, leading to the engine smoking and eventually the fire [135428]. This external factor of debris on the road triggering the fire demonstrates how events outside the system can lead to software failure incidents in Tesla vehicles.
Nature (Human/Non-human) non-human_actions, human_actions (a) The software failure incident occurring due to non-human actions: - The software failure incident involving Tesla vehicles catching fire was primarily attributed to the lithium-ion batteries used in the cars. The batteries, although a Nobel-Prize-winning innovation, can pose risks such as combusting if damaged or defective [135428]. - The incident in which a Tesla caught fire in a wrecking yard in California was described as the Tesla's battery reigniting the fire each time firefighters attempted to extinguish it. Even when the car was moved and the battery sprayed directly, the fire would reignite due to residual heat, indicating a non-human action causing the fire to persist [135428]. (b) The software failure incident occurring due to human actions: - The article mentions a family on a road trip with their Tesla encountering a large piece of debris on the highway that became trapped under their car, leading to the engine smoking and eventually catching fire. This incident highlights how human actions, such as driving over debris, can contribute to software failure incidents like vehicle fires [135428].
Dimension (Hardware/Software) hardware (a) The software failure incident occurring due to hardware: - The incident involving the Tesla fire was primarily attributed to the car's lithium-ion battery, which caused the fire to constantly reignite [135428]. - The excessive fire and reignition of the fire were specifically linked to the lithium-ion battery technology used in Tesla vehicles, which can lead to high temperatures and combustion risks if damaged or defective [135428]. - Firefighters faced challenges in extinguishing the fire as the Tesla's battery would reignite the flames, requiring them to use significant amounts of water and even submerge the battery compartment to finally put out the fire [135428]. (b) The software failure incident occurring due to software: - There is no specific mention of the software failure incident being directly caused by software-related factors in the provided articles.
Objective (Malicious/Non-malicious) non-malicious (a) The articles do not mention any malicious software failure incidents related to the Tesla fires. (b) The software failure incidents related to the Tesla fires were non-malicious. The failures were attributed to the car's lithium-ion battery causing fires due to various reasons such as damage, overheating, or defects in the battery technology [135428].
Intent (Poor/Accidental Decisions) unknown The articles do not mention any software failure incident related to poor decisions or accidental decisions.
Capability (Incompetence/Accidental) unknown The articles do not mention any software failure incident related to development incompetence or accidental factors.
Duration unknown The articles do not mention any software failure incident related to either a permanent or temporary duration.
Behaviour crash, omission (a) crash: - The Tesla vehicle caught fire and burned intensely, requiring firefighters to continuously apply water for nearly two hours as the battery would reignite and hold high temperatures, indicating a catastrophic failure [135428]. - A Tesla Model S spontaneously burst into flames in a wrecking yard, and each time firefighters attempted to extinguish the flames, the Tesla's battery would reignite the fire, leading to a persistent crash scenario [135428]. (b) omission: - The Tesla vehicle caught fire after encountering a large piece of debris on the highway, causing the engine to smoke and eventually burst into flames. The occupants managed to escape before the fire engulfed the vehicle, suggesting an omission of the system to prevent the fire incident [135428]. (c) timing: - There is no specific information in the articles indicating a timing-related failure. (d) value: - The articles do not mention any failure related to the system performing its intended functions incorrectly. (e) byzantine: - There is no indication of a byzantine failure in the described incidents. (f) other: - The software failure incident in the Tesla vehicles involved a catastrophic crash leading to intense fires that were difficult to extinguish, potentially indicating a combination of crash and omission behaviors [135428].

IoT System Layer

Layer Option Rationale
Perception None None
Communication None None
Application None None

Other Details

Category Option Rationale
Consequence property, non-human, other (a) death: People lost their lives due to the software failure - There were no reports of people losing their lives due to the software failure incident reported in the articles [135428]. (b) harm: People were physically harmed due to the software failure - The articles did not mention any physical harm to individuals due to the software failure incident [135428]. (c) basic: People's access to food or shelter was impacted because of the software failure - The incident did not impact people's access to food or shelter [135428]. (d) property: People's material goods, money, or data was impacted due to the software failure - The software failure incident resulted in the destruction of a Tesla Model S luxury car due to a battery fire, causing significant property damage [135428]. (e) delay: People had to postpone an activity due to the software failure - The incident did not involve any postponement of activities due to the software failure [135428]. (f) non-human: Non-human entities were impacted due to the software failure - The software failure incident impacted the Tesla vehicle and its lithium-ion battery, resulting in a significant fire [135428]. (g) no_consequence: There were no real observed consequences of the software failure - The software failure incident had real observed consequences, including the destruction of the Tesla vehicle and the need for extensive firefighting efforts [135428]. (h) theoretical_consequence: There were potential consequences discussed of the software failure that did not occur - The articles discussed the risks associated with lithium-ion batteries in electric vehicles, such as the potential for fires, but these theoretical consequences did occur in the reported incident [135428]. (i) other: Was there consequence(s) of the software failure not described in the (a to h) options? What is the other consequence(s)? - The software failure incident led to the need for volunteer firefighters to use 12,000 gallons of water over two hours to extinguish the battery fire, highlighting the resource-intensive nature of addressing such incidents [135428].
Domain transportation The software failure incident reported in the news articles is related to the transportation industry. The incident involved Tesla vehicles catching fire due to issues with their lithium-ion batteries while on the road [135428]. The incident occurred during a family road trip, highlighting the transportation aspect of the failed system. Additionally, the article mentions that the fire department had to battle a Tesla fire for the first time, emphasizing the transportation industry's involvement [135428].

Sources

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