NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
155 reportsMileage unknown · Jun 30, 2026
Power Train
Tuesday June 2, 2026 my car went into the shop. At which time the viscous coupler was replaced for the rear AWD differential. This was a Ford OEM Part that had failed. Upon replacing it shut up they found the rear differential gear assembly was in fact also in need of being replaced. The needed part is called a rear final drive…
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Tuesday June 2, 2026 my car went into the shop. At which time the viscous coupler was replaced for the rear AWD differential. This was a Ford OEM Part that had failed. Upon replacing it shut up they found the rear differential gear assembly was in fact also in need of being replaced. The needed part is called a rear final drive. It is now June 30, 2026. My car has been in the shop now for 28 days. The rear final drive part needed is on backorder. “We are more than 100 on the list.” Therefore, I will not be getting my car back any time soon. Upon researching and discussions with dealerships, this is and has been a known problem with the Lincoln and Ford vehicles. However, there has never been a recall, or any justification for this known problem. I would like some answers to why anyone would have to wait that long for a part for their vehicle! I am without a car and will be for an extended period time!
NHTSA ODI #11747526
Mileage unknown · Jun 16, 2026
Service Brakes
I am writing to file a formal safety complaint regarding the extreme delay in the recall remedy for my vehicle. Despite the recall being issued months ago, Ford Motor Company/Lincoln has failed to resolve this critical safety issue in a timely manner. Here are my vehicle details: Year/Make/Model: 2016 Lincoln MKX VIN [XXX] …
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I am writing to file a formal safety complaint regarding the extreme delay in the recall remedy for my vehicle. Despite the recall being issued months ago, Ford Motor Company/Lincoln has failed to resolve this critical safety issue in a timely manner. Here are my vehicle details: Year/Make/Model: 2016 Lincoln MKX VIN [XXX] NHTSA Recall Number: 25V544 Manufacturer Recall Number: 25S87 Component Affected: Rear Flexible Brake Hoses Description of the Safety Concern: The recall notice explicitly states that a failure in the rear flexible brake hoses can lead to a loss of brake fluid, resulting in increased brake pedal travel and significantly increased stopping distances, which greatly elevates the risk of a crash. Recently, I have started experiencing a noticeable softening in the brake pedal ("increased pedal travel"), which makes driving the vehicle extremely hazardous. When I contacted my local Lincoln dealership, I was informed that they do not have the necessary parts in stock and could not provide a definitive timeline for the repair. As a consumer, I am being forced to drive a vehicle with a known, severe braking defect because the manufacturer has failed to supply the remedy parts. This is a direct threat to my life, my family’s safety, and the safety of others on the road. Furthermore, this prolonged delay is causing me significant financial hardship and stress. I urgently request NHTSA to intervene and hold Ford Motor Company accountable for expediting the parts distribution for this critical safety recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11744532
Mileage unknown · Jun 12, 2026
Service Brakes
My vehicle is very hard to stop . The recall was in August of2025 for my back break hoses, as of today Ford/Lincoln doesn't have the part . This is very Dangerous. I'm financing my vehicle therefore I don't have funds to repair it myself. I'm at risk of crashing and I take my kids to school daily, I'm putting my family life in …
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My vehicle is very hard to stop . The recall was in August of2025 for my back break hoses, as of today Ford/Lincoln doesn't have the part . This is very Dangerous. I'm financing my vehicle therefore I don't have funds to repair it myself. I'm at risk of crashing and I take my kids to school daily, I'm putting my family life in danger every time I get behind the wheel Please can someone help me keep my family safe
NHTSA ODI #11743642
Mileage unknown · Jun 10, 2026
Service Brakes
See attached document for complaint.
NHTSA ODI #11743209
Mileage unknown · Jun 1, 2026
Back Over PreventionElectrical SystemLane Departure
FOR THESE LAST SEVERAL MONTHS, NEAR OR AROUND DECEMBER OF 2025 MY 2016 LINCOLN MKX HAS BEEN SHORTING OUT OR HAVING GLITCHES IN THE CENTER CABIN. THE CROSS TRAFFIC SYSTEM AND BLINDSPOT SYTEM FAULT HAVE TURNED ON AND OFF SIMULTANEOUSLY CREATING A SHORT IN THE CABIN RESULTING IN THE ac OR hEAT TURNING OFF AND ON. THIS ALSO CREA…
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FOR THESE LAST SEVERAL MONTHS, NEAR OR AROUND DECEMBER OF 2025 MY 2016 LINCOLN MKX HAS BEEN SHORTING OUT OR HAVING GLITCHES IN THE CENTER CABIN. THE CROSS TRAFFIC SYSTEM AND BLINDSPOT SYTEM FAULT HAVE TURNED ON AND OFF SIMULTANEOUSLY CREATING A SHORT IN THE CABIN RESULTING IN THE ac OR hEAT TURNING OFF AND ON. THIS ALSO CREATES A SHORT WHERE THE THE WINDOWS WILL NOT ROLL DOWN, THE GLOVE BOX WILL NOT OPEN OR THE TRUNK, THE DOORS CANT OPEN FROM THE OUTSIDE. AND MOST SERIOUS, MY KEY FOB WILL NOT OPEN THE VEHICLE. THE lINCOLN DEALERSHIP IS AWARE OF THE PROBLEM BUT HAS REFUSED TO ADDRESS THE PROBLEM BECAUSE THEY CLAIM THEY CANNOT REPLICATE THE ISSUE. THE DEALERSHIP HAS WITNESSED THE PROBLEM, YET THEIR TECH IS NEVER AVAILABLE. THE DEALERSHIP IS AWARE OF THE ISSUE, AND HAS SEEN VIDEOS OF THE PROBLEM BUT REFUSES TO ADDRESS. ORIGINALLY CAR MAX REFERRED THE CAR TO LINCOLN BECAUSE CARMAX CLAIMED THEY DO NOT HAVE THE TECHNOLOGY TO ADDRESS THE LINCOLN'S ISSUES. LINCOLN CLAIMS THEY CANNOT REPLICATE AND THAT I SHOULD WAIT FOR THE CAR TO BREAK DOWN.
NHTSA ODI #11741387
Mileage unknown · May 21, 2026
EngineFuel/propulsion System
The internal water pump failed, dumping a half gallon of antifreeze into the engine oil. This caused the engine to suddenly stall and lose all power while driving in the middle of active traffic, creating a severe crash hazard .
NHTSA ODI #11739238
Mileage unknown · May 8, 2026
Suspension
Rear axle joint degraded, the vehicle cannot steer smoothly, indicator shows AWD temporarily disabled; large vibrations and unsafe to drive. In the end the vehicle was having troubles turning directions.
NHTSA ODI #11736630
57,532 miles · Apr 29, 2026
Service Brakes, Hydraulic
The contact owns a 2016 Lincoln MKX. The contact stated that while pulling into the ATM at approximately 10 MPH and depressing the brake pedal, the vehicle made an abnormal popping sound, and the brake warning light illuminated. The vehicle was driven to the residence. The vehicle was then driven to an independent mechanic, and …
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The contact owns a 2016 Lincoln MKX. The contact stated that while pulling into the ATM at approximately 10 MPH and depressing the brake pedal, the vehicle made an abnormal popping sound, and the brake warning light illuminated. The vehicle was driven to the residence. The vehicle was then driven to an independent mechanic, and was diagnosed with brake failure. The mechanic determined that the rear passenger’s side brake hose had ruptured, and the rear driver’s side brake hose needed to be replaced. The mechanic replaced both rear brake hoses, and the vehicle was repaired. The contact later received notification of NHTSA Campaign Number: 25V544000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure, and a request for reimbursement was made. The manufacturer informed the contact that the reimbursement would be provided once the part for the recall repair was available. The failure mileage was approximately 57,532.
NHTSA ODI #11734485
Mileage unknown · Mar 27, 2026
Service Brakes
Unknown Still waiting for solution for possible brake failure. Not comfortable just waiting for an accident to happen while driving.
NHTSA ODI #11727413
Mileage unknown · Mar 24, 2026
Service Brakes, Hydraulic
The contact owns a 2016 Lincoln MKX. The contact received notification of NHTSA Campaign Number: 25V544000 (SERVICE BRAKES, HYDRAULIC); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall …
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The contact owns a 2016 Lincoln MKX. The contact received notification of NHTSA Campaign Number: 25V544000 (SERVICE BRAKES, HYDRAULIC); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.
NHTSA ODI #11726692
Official recalls
7Aug 22, 2025
Ford Motor Company (Ford) is recalling certain 2016-2018 Lincoln MKX and 2015-2018 Edge vehicles. The rear brake jounce hose may rupture and leak brake fluid.
Consequence & remedy
Consequence: A brake fluid leak can extend the distance required to stop the vehicle, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the brake jounce hoses and adjust brake jounce hoses with no damage present, free of charge. Interim owner letters notifying owners of the safety risk were mailed September 8, 2025. Additional letters will be sent once the remedy is available, anticipated August 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S87.
Aug 10, 2020
Ford Motor Company (Ford) is recalling certain 2015-2018 Ford Edge and 2016-2018 Lincoln MKX vehicles. The front brake hoses may rupture prematurely.
Consequence & remedy
Consequence: A ruptured front brake hose will cause a brake fluid leak, lengthening the distance needed to stop the vehicle, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the front brake hoses with the new hoses that have a revised braid material, free of charge. Owner notification letters were mailed on May 13, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S42.
Additional source detail variants (2)
Service Brakes
Ford Motor Company (Ford) is recalling certain 2015-2018 Ford Edge and 2016-2018 Lincoln MKX vehicles. The front brake hoses may rupture prematurely.
Consequence: A ruptured front brake hose will cause a brake fluid leak, lengthening the distance needed to stop the vehicle, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the front brake hoses with the new hoses that have a revised braid material, free of charge. Owner notification letters were mailed on May 13, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S42.
Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
Ford Motor Company (Ford) is recalling certain 2015-2018 Ford Edge and 2016-2018 Lincoln MKX vehicles. The front brake hoses may rupture prematurely.
Consequence: A ruptured front brake hose will cause a brake fluid leak, lengthening the distance needed to stop the vehicle, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the front brake hoses with the new hoses that have a revised braid material, free of charge. Owner notification letters were mailed on May 13, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S42.
Jul 17, 2020
Ford Motor Company, Inc. (Ford) is recalling certain 2016-2018 Lincoln MKX and 2019-2020 Nautilus vehicles equipped with 16-way electric tilt seats. The seat cushion frame edge may contact the wire harness when the seat occupant uses the tilt function of the seat, potentially damaging one or more wires within the harness, which can result in either inadvertent deployment of the air bag or nondeployment of the air bag in the event of a crash.
Consequence & remedy
Consequence: An air bag that deploys inadvertently increases the risk of a crash. An air bag that does not deploy in the event of a crash increases the risk of injury.
Remedy: Ford will notify owners, and dealers will install protective flocking tape onto the exposed edge of the 16-way seat cushion frames, and inspect the wire harness for damage, and repair or replace it as needed, free of charge. This recall began August 12, 2020. Owners may contact Ford/Lincoln customer service at 1-866-436-7332. Ford's number for this recall is 20S37.
Additional source detail variants (3)
Seats:front Assembly:power Adjust
Ford Motor Company, Inc. (Ford) is recalling certain 2016-2018 Lincoln MKX and 2019-2020 Nautilus vehicles equipped with 16-way electric tilt seats. The seat cushion frame edge may contact the wire harness when the seat occupant uses the tilt function of the seat, potentially damaging one or more wires within the harness, which can result in either inadvertent deployment of the air bag or nondeployment of the air bag in the event of a crash.
Consequence: An air bag that deploys inadvertently increases the risk of a crash. An air bag that does not deploy in the event of a crash increases the risk of injury.
Remedy: Ford will notify owners, and dealers will install protective flocking tape onto the exposed edge of the 16-way seat cushion frames, and inspect the wire harness for damage, and repair or replace it as needed, free of charge. This recall began August 12, 2020. Owners may contact Ford/Lincoln customer service at 1-866-436-7332. Ford's number for this recall is 20S37.
Air Bags
Ford Motor Company, Inc. (Ford) is recalling certain 2016-2018 Lincoln MKX and 2019-2020 Nautilus vehicles equipped with 16-way electric tilt seats. The seat cushion frame edge may contact the wire harness when the seat occupant uses the tilt function of the seat, potentially damaging one or more wires within the harness, which can result in either inadvertent deployment of the air bag or nondeployment of the air bag in the event of a crash.
Consequence: An air bag that deploys inadvertently increases the risk of a crash. An air bag that does not deploy in the event of a crash increases the risk of injury.
Remedy: Ford will notify owners, and dealers will install protective flocking tape onto the exposed edge of the 16-way seat cushion frames, and inspect the wire harness for damage, and repair or replace it as needed, free of charge. This recall began August 12, 2020. Owners may contact Ford/Lincoln customer service at 1-866-436-7332. Ford's number for this recall is 20S37.
Electrical System:wiring:interior/under Dash
Ford Motor Company, Inc. (Ford) is recalling certain 2016-2018 Lincoln MKX and 2019-2020 Nautilus vehicles equipped with 16-way electric tilt seats. The seat cushion frame edge may contact the wire harness when the seat occupant uses the tilt function of the seat, potentially damaging one or more wires within the harness, which can result in either inadvertent deployment of the air bag or nondeployment of the air bag in the event of a crash.
Consequence: An air bag that deploys inadvertently increases the risk of a crash. An air bag that does not deploy in the event of a crash increases the risk of injury.
Remedy: Ford will notify owners, and dealers will install protective flocking tape onto the exposed edge of the 16-way seat cushion frames, and inspect the wire harness for damage, and repair or replace it as needed, free of charge. This recall began August 12, 2020. Owners may contact Ford/Lincoln customer service at 1-866-436-7332. Ford's number for this recall is 20S37.
Nov 12, 2019
Ford Motor Company (Ford) is recalling certain 2016-2017 Lincoln MKX vehicles equipped with 3.7L engines. The battery positive cable harness may contact the transmission shifter cable bracket resulting in a short circuit.
Consequence & remedy
Consequence: An electrical short increases the risk of a fire.
Remedy: Ford will notify owners, and dealers will remove the battery harness clips and elbow guide, and install a wire channel shield and protective sleeve to the battery cable harness, free of charge. Interim notices informing owners of the safety risk were mailed on December 2, 2019. Owners will receive a second notice when the remedy becomes available, currently expected to be the end of April 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 19S41.
Aug 29, 2019
Ford Motor Company (Ford) is recalling certain 2013-2016 Ford Fusion and Lincoln MKZ, 2015-2016 Ford Edge, and 2016 Lincoln MKX vehicles originally sold, or currently registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, and Wisconsin. Road salt or other contaminants may corrode the electric power steering gear motor attachment bolts.
Consequence & remedy
Consequence: If the bolts corrode, the steering gear motor may detach from the gear housing resulting in a loss of power steering assist, requiring a greater steering effort, especially at lower speeds, and increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the steering gear motor bolts and apply a wax sealer. If any of the steering gear motor attachment bolts are broken or missing, a new steering gear will be installed in the vehicle. These repairs will be performed free of charge. The recall began October 18, 2019. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 19S26.
Feb 27, 2017
Ford Motor Company (Ford) is recalling certain 2016-2017 Ford Edge and Lincoln MKX vehicles and 2017 Lincoln Continental vehicles. In the event of a crash, the driver's frontal air bag may not fully inflate or the air bag cushion may detach from the air bag module. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
Consequence & remedy
Consequence: During deployment, if the air bag does not fully inflate or the cushion detaches, there is an increased risk of injury in the event of a crash.
Remedy: Ford will notify owners, and dealers will replace the driver frontal air bag module, free of charge. The recall began June 16, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 17C02.
May 24, 2016
Ford Motor Company (Ford) is recalling certain model year 2016 Lincoln MKX vehicles manufactured September 24, 2015. An incorrect seat back trim cover was installed on the affected vehicles, blocking the child seat tether anchors in the second row center seating position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child restraint anchorage systems."
Consequence & remedy
Consequence: An improperly anchored child seat can increase the risk of injury in a crash.
Remedy: Ford will notify owners, and dealers will replace the seat back trim cover and tether cover bezel on the second row, free of charge. The recall began on June 16, 2016. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16C09.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1EA21002 · Desiccated Air Bag Inflator Rupture
Opened Sep 17, 2021 · No close date supplied
Status: open (inferred from source dates) · Air Bags:frontal:driver Side:inflator Module; Air Bags:frontal:passenger Side:inflator Module
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 no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Additional source detail variants (2)
Air Bags:frontal:driver Side:inflator Module
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 no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Air Bags:frontal:passenger Side:inflator Module
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 no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
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