Incident: Instrument Cluster Software Issue in 2019 Ram 1500 Recall

Published Date: 2019-08-07

Postmortem Analysis
Timeline 1. The software failure incident with the instrument cluster and its software in the 2019 Ram 1500 happened in December 2018 [Article 88956].
System 1. Instrument cluster software in the 2019 Ram 1500 [88956]
Responsible Organization 1. Ram parent company Fiat Chrysler [Article 88956]
Impacted Organization 1. The owner of the single 2019 Ram 1500 affected by the software failure incident [Article 88956].
Software Causes 1. The software cause of the failure incident was related to the instrument cluster software not illuminating specific parts required by Federal Motor Vehicle Safety Standard 101, potentially leading to a safety hazard [Article 88956].
Non-software Causes 1. The failure incident was caused by a problem with the instrument cluster in the vehicle, specifically related to the illumination of specific parts required by Federal Motor Vehicle Safety Standard 101 [Article 88956].
Impacts 1. The software failure incident in the instrument cluster of the 2019 Ram 1500 resulted in a violation of the Federal Motor Vehicle Safety Standard 101, potentially compromising the safety of the vehicle and increasing the risk of a crash [Article 88956].
Preventions 1. Implementing thorough software testing procedures during the development phase to catch issues like the one with the instrument cluster software [88956]. 2. Conducting more extensive quality assurance checks on all vehicle models to ensure compliance with safety standards and regulations [88956].
Fixes 1. A parts swap involving replacing the instrument cluster with a model featuring updated software could fix the software failure incident [88956].
References 1. Recall documents submitted by Ram parent company Fiat Chrysler to NHTSA [Article 88956] 2. Production records reviewed by Fiat Chrysler [Article 88956]

Software Taxonomy of Faults

Category Option Rationale
Recurring one_organization (a) The software failure incident related to the instrument cluster not illuminating specific parts required by Federal Motor Vehicle Safety Standard 101 happened again within the same organization, Fiat Chrysler. The article mentions that Fiat Chrysler had the same problem pop up on three other models, which led to a voluntary recall in March before discovering the issue in some Ram 1500 models as well [88956].
Phase (Design/Operation) design (a) The software failure incident in this case is related to the design phase of the system development. The issue with the instrument cluster software in the 2019 Ram 1500 was identified as not illuminating specific parts required by Federal Motor Vehicle Safety Standard 101, which led to a violation of the standard and potentially increased the chance of a crash [Article 88956]. (b) There is no information in the provided article indicating that the software failure incident was due to factors introduced by the operation or misuse of the system.
Boundary (Internal/External) within_system (a) The software failure incident in this case is within_system. The issue with the instrument cluster and its software was identified by Fiat Chrysler after a similar problem was found in three other models, leading to a voluntary recall. Upon further investigation, it was discovered that some Ram 1500 models might also have the problematic instrument cluster. The software failure originated from within the system and was not caused by external factors [Article 88956].
Nature (Human/Non-human) non-human_actions (a) The software failure incident in this case was due to non-human actions. The issue with the instrument cluster software in the 2019 Ram 1500 was identified as a result of a similar problem found in three other models, leading to a voluntary recall. The problematic instrument cluster in the Ram 1500 was discovered through production records, indicating that it was not a result of human actions but rather a systemic issue within the software [Article 88956].
Dimension (Hardware/Software) hardware, software (a) The software failure incident in the article is related to hardware. The issue with the instrument cluster in the 2019 Ram 1500 was due to the software not illuminating specific parts of the cluster as required by Federal Motor Vehicle Safety Standard 101. This hardware-related software failure led to the recall of the vehicle [88956].
Objective (Malicious/Non-malicious) non-malicious (a) The software failure incident described in the article is non-malicious. The issue with the instrument cluster software in the 2019 Ram 1500 was identified as a result of a voluntary recall initiated by Fiat Chrysler after a similar problem was found in three other models. The recall was not due to any malicious intent but rather a proactive measure to address a potential safety concern for the vehicle owners [Article 88956].
Intent (Poor/Accidental Decisions) unknown The software failure incident described in Article 88956 does not provide specific information about whether the failure was due to poor decisions or accidental decisions. Therefore, the intent behind the software failure incident is unknown based on the provided article.
Capability (Incompetence/Accidental) accidental (a) The software failure incident in this case does not seem to be related to development incompetence. The issue with the instrument cluster software was identified by Fiat Chrysler after a similar problem was found in three other models, leading to a voluntary recall. The recall for the single Ram 1500 was initiated after it was discovered that this specific vehicle might also have the problematic instrument cluster. The solution involved a simple parts swap to replace the instrument cluster with updated software, indicating a proactive response to the issue rather than a result of development incompetence [Article 88956]. (b) The software failure incident appears to be accidental in nature. The problem with the instrument cluster software was not intentional but rather a result of a potential oversight during the manufacturing process. Fiat Chrysler identified the issue after encountering similar problems in other models, leading to a voluntary recall. The fact that only a single vehicle was affected suggests that the issue was not deliberately introduced but rather an accidental occurrence that required a corrective action [Article 88956].
Duration temporary The software failure incident described in the article is temporary. The issue with the instrument cluster software in the 2019 Ram 1500 was identified as a specific problem that could be remedied by a simple parts swap. The article mentions that technicians will replace the instrument cluster with a model featuring updated software to fix the problem, indicating that the failure is not permanent but rather a temporary issue that can be resolved [Article 88956].
Behaviour omission, value, other (a) crash: The software failure incident in the article is not described as a crash where the system loses state and does not perform any of its intended functions [Article 88956]. (b) omission: The software failure incident is related to omission as the instrument cluster software may not illuminate specific parts required by safety standards, potentially preventing the owner from knowing everything going on with the vehicle [Article 88956]. (c) timing: The software failure incident is not related to timing issues where the system performs its intended functions but too late or too early [Article 88956]. (d) value: The software failure incident is related to value as the system is performing its intended functions incorrectly by not illuminating specific parts of the instrument cluster as required by safety standards [Article 88956]. (e) byzantine: The software failure incident is not related to a byzantine behavior where the system behaves erroneously with inconsistent responses and interactions [Article 88956]. (f) other: The software failure incident is specifically related to the system omitting to perform its intended functions correctly, leading to a safety violation and potential increase in the chance of a crash [Article 88956].

IoT System Layer

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

Other Details

Category Option Rationale
Consequence harm, property, theoretical_consequence The consequence of the software failure incident described in the article is related to potential harm and property impact. The software issue with the instrument cluster in the 2019 Ram 1500 could potentially increase the chance of a crash due to the cluster not illuminating specific parts required by safety standards [88956]. This could lead to physical harm to individuals if a crash were to occur. Additionally, the software failure impacted the owner's access to information about the vehicle, which could indirectly affect the owner's property (the vehicle itself) [88956].
Domain transportation (a) The failed system in the article is related to the transportation industry. The software failure incident occurred in the instrument cluster of a 2019 Ram 1500 vehicle, which is a part of the automotive industry involved in the transportation of people and goods [Article 88956].

Sources

Back to List