Incident: Tesla's Full Self-Driving Beta Software Withdrawn Due to Safety Issues

Published Date: 2021-10-25

Postmortem Analysis
Timeline 1. The software failure incident with Tesla's "full self-driving" car software update happened on a Sunday afternoon, less than a day after it was released [119757]. Therefore, the incident likely occurred on the same Sunday as the software update release, which is not explicitly mentioned in the article. Hence, the exact date of the incident cannot be determined, but it occurred on a Sunday afternoon.
System 1. Tesla's "full self-driving" car software update [119757]
Responsible Organization 1. Tesla - Tesla was responsible for causing the software failure incident by releasing a full self-driving car software update that had issues, leading to safety alerts sounding despite no danger being present. The update was rolled back shortly after it was released due to reported problems [Article 119757].
Impacted Organization 1. Tesla drivers [119757]
Software Causes 1. The software causes of the failure incident with Tesla's self-driving beta update included safety alerts sounding despite no danger being present, and regression in some left turns at traffic lights [119757].
Non-software Causes 1. The launch of the software update was delayed due to a regression in some left turns at traffic lights, as found by Tesla's quality assurance team [119757]. 2. Despite known issues, the software update was released anyway before being quickly withdrawn after drivers reported problems [119757].
Impacts 1. Safety alerts sounding despite no danger being present, leading to potential confusion and distraction for Tesla drivers [Article 119757]. 2. Regression in some left turns at traffic lights, indicating a potential flaw in the software's decision-making process [Article 119757]. 3. Concerns raised by Thatcham Research regarding the risks of beta-testing new software with real-world drivers, highlighting safety challenges and the potential for accidents [Article 119757].
Preventions 1. Thorough Quality Assurance Testing: Conducting comprehensive quality assurance testing before releasing the software update could have helped identify and address the issues before they reached the public [119757]. 2. More Robust Beta Testing: Implementing more rigorous beta testing procedures with a diverse group of testers to uncover potential issues and gather feedback before the wider release could have prevented the problems reported by drivers [119757]. 3. Clear Communication and Expectation Setting: Providing clear communication to users about the limitations and risks of beta software, as well as setting proper expectations regarding the functionality and potential issues, could have helped users better understand the software and reduce misunderstandings [119757].
Fixes 1. Conduct thorough testing and quality assurance before releasing beta software updates to the public to identify and address any issues [119757]. 2. Implement a more robust feedback mechanism to gather real-time data and user feedback on software performance to quickly identify and rectify any issues [119757]. 3. Enhance communication with users about the limitations and risks associated with beta software, emphasizing the importance of user vigilance and adherence to safety protocols while using the technology [119757].
References 1. Tesla drivers who reported problems with the software update [Article 119757] 2. Tesla chief executive Elon Musk [Article 119757] 3. Thatcham Research, specifically Matthew Avery, director of research [Article 119757]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization (a) The software failure incident related to Tesla's "full self-driving" car software update being rolled back due to reported problems is an example of a similar incident happening again within the same organization. This incident is not the first time Tesla has faced issues with its software updates. In this case, the latest version of the software was withdrawn after drivers complained of safety alerts sounding despite no danger being present. Tesla CEO Elon Musk acknowledged that there were "some issues" with this version, stating that such issues were expected with beta software [119757].
Phase (Design/Operation) design (a) The software failure incident in the article is related to the design phase. Tesla withdrew its latest "full self-driving" car software update after drivers complained of problems such as safety alerts sounding despite no danger being present. Elon Musk mentioned that there were "some issues" with this version, and the company's quality assurance team had found "regression in some left turns at traffic lights" before the launch. Despite these known issues, the software update was still released to the public, indicating that the failure was due to contributing factors introduced during the development and testing phases [119757].
Boundary (Internal/External) within_system (a) within_system: The software failure incident with Tesla's self-driving beta update was due to issues within the system itself. Tesla withdrew the update after drivers reported problems such as safety alerts sounding despite no danger being present. CEO Elon Musk acknowledged there were "some issues" with the version, including a regression in some left turns at traffic lights, which led to the decision to roll back the update [119757]. The decision to release the update despite known issues originating from within the system resulted in the need for a quick withdrawal due to the reported problems.
Nature (Human/Non-human) non-human_actions, human_actions (a) The software failure incident with Tesla's self-driving beta update was primarily due to non-human actions, specifically issues within the software itself. Drivers reported problems such as safety alerts sounding despite no danger being present, indicating issues within the software update [119757]. The regression in some left turns at traffic lights, which was identified by Tesla's quality assurance team, also contributed to the decision to roll back the update, highlighting internal software issues [119757]. (b) However, human actions also played a role in this software failure incident. Despite knowing about the issues with the update, Tesla still decided to release it to the public for beta testing. Elon Musk mentioned that there were "some issues" with the version but stated that such issues were expected with beta software [119757]. This decision to release the update despite known problems led to drivers experiencing issues and ultimately resulted in the update being quickly withdrawn after complaints from users [119757].
Dimension (Hardware/Software) software (a) The software failure incident reported in the article is related to software issues. Tesla withdrew its "full self-driving" car software update after drivers complained of problems such as safety alerts sounding despite no danger being present. Tesla chief executive Elon Musk acknowledged there were "some issues" with the software update, mentioning that the quality assurance team found a regression in some left turns at traffic lights [Article 119757]. This indicates that the failure originated in the software rather than the hardware.
Objective (Malicious/Non-malicious) non-malicious The software failure incident reported in Article 119757 regarding Tesla's self-driving beta withdrawal was non-malicious. The issues with the software update were related to safety alerts sounding erroneously and regression in left turns at traffic lights, which were not intentional acts to harm the system but rather unintended consequences of the beta software release. Elon Musk acknowledged that there were "some issues" with the version, indicating that the problems were not deliberate [119757].
Intent (Poor/Accidental Decisions) poor_decisions, accidental_decisions The software failure incident reported in Article 119757 regarding Tesla's self-driving beta software withdrawal provides information relevant to both options: (a) poor_decisions: The incident suggests that poor decisions may have contributed to the software failure. Despite knowing about issues with the software update, Tesla still released it to the public before quickly withdrawing it due to reported problems. Elon Musk mentioned that there were "some issues" with the version, and the quality assurance team had found a regression in some left turns at traffic lights, indicating that the decision to release the update despite known issues could be considered a poor decision [119757]. (b) accidental_decisions: On the other hand, the incident also hints at accidental decisions or unintended consequences contributing to the failure. The article mentions that the launch was delayed because of issues found by the quality assurance team, indicating that the release may have been accidental or unintended. Additionally, the fact that drivers reported safety alerts sounding despite no danger being present suggests unintended consequences of the software update [119757].
Capability (Incompetence/Accidental) development_incompetence (a) The software failure incident reported in Article 119757 regarding Tesla's self-driving beta being withdrawn due to software issues can be attributed to development incompetence. Tesla released the latest "full self-driving" car software update despite knowing about issues found by the quality assurance team, such as regressions in left turns at traffic lights. This decision led to drivers experiencing problems like safety alerts sounding when there was no danger present. The incident highlights the risks associated with beta-testing new software with real-world drivers, where customers essentially become guinea pigs, potentially leading to safety challenges and accidents ([119757]).
Duration temporary The software failure incident reported in Article 119757 regarding Tesla's self-driving beta software update can be categorized as a temporary failure. The latest "full self-driving" car software update was rolled back less than a day after its release due to drivers reporting problems such as safety alerts sounding despite no danger being present. Tesla CEO Elon Musk acknowledged there were "some issues" with the version, including a regression in some left turns at traffic lights, leading to the quick withdrawal of the update [119757]. This indicates that the failure was temporary and specific to the circumstances surrounding the release of that particular software update.
Behaviour omission, value, other (a) crash: The software failure incident reported in the article is not specifically described as a crash where the system loses state and does not perform any of its intended functions. Instead, the issues reported by Tesla drivers included safety alerts sounding despite no danger being present, and a regression in some left turns at traffic lights, leading to the withdrawal of the software update [119757]. (b) omission: The incident does not directly mention the software failing due to omitting to perform its intended functions at an instance(s). However, the complaints from drivers about safety alerts sounding when there was no danger could be seen as an omission of correct functionality by the software [119757]. (c) timing: The article does not indicate that the software failure incident was related to the system performing its intended functions correctly but too late or too early. The issues reported by drivers were more about incorrect alerts and regressions in specific functionalities [119757]. (d) value: The software failure incident is not explicitly described as a failure due to the system performing its intended functions incorrectly. However, the complaints from drivers about safety alerts sounding when there was no danger could be considered as the system providing incorrect information or responses [119757]. (e) byzantine: The incident is not characterized as a failure due to the system behaving erroneously with inconsistent responses and interactions. The issues reported by drivers were more related to specific problems with the software update, such as safety alerts and left turn regressions [119757]. (f) other: The behavior of the software failure incident in this case could be described as a combination of providing incorrect alerts (value) and potentially omitting to perform its intended functions correctly (omission) based on the reported complaints from Tesla drivers [119757].

IoT System Layer

Layer Option Rationale
Perception embedded_software The software failure incident reported in the article [119757] was related to the embedded software layer of the cyber physical system. Tesla withdrew its "full self-driving" car software update due to issues such as safety alerts sounding despite no danger being present. Tesla chief executive Elon Musk mentioned that there were "some issues" with the software version, indicating problems within the embedded software itself. Additionally, the article highlighted concerns over Tesla beta-testing new software with real-world drivers, emphasizing the risks associated with customers trying out the software and potential safety challenges, which are indicative of issues within the embedded software layer.
Communication unknown The software failure incident reported in Article 119757 regarding Tesla's self-driving beta withdrawal does not specifically mention whether the failure was related to the communication layer of the cyber-physical system that failed. The focus of the article is on issues such as safety alerts sounding despite no danger being present, regression in left turns at traffic lights, and concerns over beta-testing new software with real-world drivers. Therefore, it is unknown whether the failure was specifically related to the link_level or connectivity_level of the cyber-physical system.
Application TRUE The software failure incident reported in Article 119757 regarding Tesla's self-driving beta being withdrawn due to issues such as safety alerts sounding despite no danger being present and regression in some left turns at traffic lights does not explicitly mention that the failure was related to the application layer of the cyber physical system. Therefore, it is unknown if the failure was specifically related to the application layer based on the information provided in the article.

Other Details

Category Option Rationale
Consequence theoretical_consequence (a) death: People lost their lives due to the software failure (b) harm: People were physically harmed due to the software failure (c) basic: People's access to food or shelter was impacted because of the software failure (d) property: People's material goods, money, or data was impacted due to the software failure (e) delay: People had to postpone an activity due to the software failure (f) non-human: Non-human entities were impacted due to the software failure (g) no_consequence: There were no real observed consequences of the software failure (h) theoretical_consequence: There were potential consequences discussed of the software failure that did not occur (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 articles do not mention any consequences related to death, harm, basic needs, property loss, or impact on non-human entities due to the Tesla self-driving software withdrawal incident. The main consequence discussed is the potential safety risk and accidents that could arise from beta-testing new software with real-world drivers, as highlighted by Thatcham Research [119757].
Domain transportation (a) The failed system in the article is related to the transportation industry. Tesla's "full self-driving" car software update was withdrawn due to software issues that caused safety alerts to sound despite no danger being present. This incident highlights the challenges and risks associated with beta-testing new software in real-world driving scenarios [Article 119757].

Sources

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