Airbag warning light or recall

From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been n

The Office of Defects Investigations opened this Preliminary Evaluation to investigate complaints alleging an inadvertent deployment of side air bags on model year 2012 Nissan Versa vehicles.The three complaints indicate the driver or passenger curtain and seat mounted air bags deployed when the front door on the same (affected) side was shut.According to Nissan, the defect identified involved the dissimilarity of the metals used in the side air bag sensor electrical connectors, gold versus tin materials.This combination may lead to fretting and oxidation on the connector pins of the Satellite Sensor and the harness which connects it to the Airbag Control Unit (ACU).Fretting and oxidation increases the likelihood of a momentary loss of connectivity, and thus communication from the sensor to the ACU.When communication is lost between the side impact sensor and the ACU, the system is designed to enter a ?backup state? mode of operation.The backup state allows the curtain and seat-mounted side air bags to deploy should the communication be accidentally lost during the course of a crash event. In this mode, the ?safing path? is used in the ACU algorithm for a deployment decision.By design, the safing path has a lower threshold for deployment compared to the normal state which requires both safing and trigger path thresholds to be met.Consequently, if this momentary communication loss occurs when the door is closed forcefully, it may cause the curtain and seat-mounted side air bag

The Office of Defects Investigation (ODI) opened this investigation after receiving Nissan early warning reports (EWR) concerning supplemental restraint system (SRS) light illumination on model year (MY) 2012 Nissan Versa vehicles.Information in the reports suggested that the SRS spiral cable harness from the spiral cassette to the driver?s air bag module became pinched within the steering wheel assembly during installation.The pinching condition was apparently causing a short to ground condition. As reported by Nissan, the shorts were the result of isolated operator errors, specifically errors in the way the harness was routed in the steering wheel area.Nissan advised that a production countermeasure was implemented on December 10, 2011 in order to reduce misrouting the spiral cable harness.If an electrical short does occur, the red air bag warning light is designed to continuously flash to alert the driver.However, a shorted harness may prevent the air bag from deploying in a frontal collision.The opening resume originally identified the subject vehicle population as all 2012 Nissan Versa vehicles. It was noted by Nissan that the MY 2012 Versa Sedan and MY 2012 Versa Hatchback vehicles were built on different platforms and varied significantly in design, specifically in that they are equipped with different steering column and air bag module components.Accordingly, the subject vehicle population for analysis was limited to 2012 Nissan Versa Sedan models.Through analysis of

The summary for this investigation, labeled EQ12-002 Autoliv Closing Resume, can be found attached separately to this resume.This EQ is closed.