NHTSA owner reports · September 18, 2026 snapshot.
Structure complaints
28 reportsClear category filterMileage unknown · Jan 14, 2022
Latches/locks/linkagesStructure
I would like to file a complaint against Ford in regards to a door latch issue with my 2016 Mustang convertible. Starting in April 2021, the passenger side door will become unlatched on it's own while driving even with doors locked. It doesn't open entirely but enough to trip "door ajar" light and interior lights. Since that tim…
Read full complaint
I would like to file a complaint against Ford in regards to a door latch issue with my 2016 Mustang convertible. Starting in April 2021, the passenger side door will become unlatched on it's own while driving even with doors locked. It doesn't open entirely but enough to trip "door ajar" light and interior lights. Since that time in April it happened in June of 2021 and again in August after which I took car to a dealer. Door came unlatched at normal speeds between 40 and 60 mph. The car is under an extended warranty from Ford and the car now has approximately 37,000 miles on it. I am the original owner. The dealer kept car for about a weeks time and said they could not duplicate it. They told me warranty wouldn't honor it since they couldn't duplicate the issue and it would cost around $600 to fix possible issues. They asked me several questions implying I was imagining it or I didn't know what I was talking about. I've been driving for about 50 years. Since August, it has happened 2 more times, once at highway speed on 10/17/21 and again yesterday, 01/11/21 also at highway speed. This time my son was sitting in passenger seat. He is a Ford trained mechanic although he doesn't work for Ford but works on Ford police fleet cars. I do believe this is a safety issue but Ford will not address the issue. I took it to Ford corporate and they backed the dealer. I believe it will only get worse as time progresses. Wouldn't cover under warranty but if I wanted to pay they would do whatever I wanted them to do.
NHTSA ODI #11447545
32,500 miles · Mar 5, 2021
Structure
IN MY 2016 FORD MUSTANG ECOBOOST CONVERTIBLE, THE PASSENGER DOOR HAS OPENED (UNLATCHED) MANY TIMES WHILE I HAVE BEEN DRIVING. THE CAR HAS NOT BEEN WRECKED DUE TO MY KNOWLEDGE AND THE CARFAX. THIS DOESN'T OCCUR OFTEN, BUT WHEN IT OCCURS, IT HAPPENS MULTIPLE TIMES IN THAT DAY. IT USUALLY OCCURS WHEN DRIVING ON THE INTERSTATE. THER…
Read full complaint
IN MY 2016 FORD MUSTANG ECOBOOST CONVERTIBLE, THE PASSENGER DOOR HAS OPENED (UNLATCHED) MANY TIMES WHILE I HAVE BEEN DRIVING. THE CAR HAS NOT BEEN WRECKED DUE TO MY KNOWLEDGE AND THE CARFAX. THIS DOESN'T OCCUR OFTEN, BUT WHEN IT OCCURS, IT HAPPENS MULTIPLE TIMES IN THAT DAY. IT USUALLY OCCURS WHEN DRIVING ON THE INTERSTATE. THERE IS A RECALL OUT FOR 2015 FASTBACK MUSTANGS FOR THIS ISSUE. BUT I PRESUME THERE IS A SIMILAR ISSUE WITH 2016S.
NHTSA ODI #11399358
72,000 miles · Aug 21, 2020
Latches/locks/linkagesStructure
THE DRIVER SIDE DOOR UNLATCHES AND THE ALARM THAT THE DOOR IS OPEN COMES ON WHILE DRIVING 70 MILES PER HOUR ON THE FREEWAY.THIS HAS HAPPENED FOUR TIMES IN A 3 DAY SPAN WHILE TRAVELING ON A ROAD TRIP. I TOOK THE VEHICLE TO THE DEALER AND THEY WERE UNABLE TO DETERMINE THE PROBLEM AND FIX THE ISSUE.
NHTSA ODI #11350713
80,000 miles · Aug 14, 2020
Latches/locks/linkagesStructure
WHILE DRIVING ON THE HIGHWAY, THE DOORS WILL POP OPEN. THIS HAS HAPPENED A NUMBER OF TIMES RANDOMLY. SEEMS THE DRIVERS DOOR POPS OPEN THEN A SHORT TIME LATER THE PASSENGER DOOR POPS OPEN. THE TIMES IT HAS HAPPENED HAVE BEEN A COUPLE HOURS INTO A TRIP AT HIGHWAY SPEED ON RELATIVELY FLAT SURFACES.
NHTSA ODI #11349196
23,800 miles · Jul 2, 2020
Latches/locks/linkagesStructure
WHILE DRIVING MY CAR, THE PASSENGER SIDE DOOR WILL OPEN AND I GET A MESSAGE SAYING "PASSENGER DOOR AJAR". I HAVE TO IMMEDIATELY PULL OVER TO SHUT THE DOOR. THIS HAPPENS INFREQUENTLY, BUT IT IS STILL DANGEROUS TO HAVE A DOOR THAT YOU THINK IS LOCKED OPEN WHILE DRIVING DOWN THE HIGHWAY. THIS HAS HAPPENED TO ME ABOUT 4 TIMES SIN…
Read full complaint
WHILE DRIVING MY CAR, THE PASSENGER SIDE DOOR WILL OPEN AND I GET A MESSAGE SAYING "PASSENGER DOOR AJAR". I HAVE TO IMMEDIATELY PULL OVER TO SHUT THE DOOR. THIS HAPPENS INFREQUENTLY, BUT IT IS STILL DANGEROUS TO HAVE A DOOR THAT YOU THINK IS LOCKED OPEN WHILE DRIVING DOWN THE HIGHWAY. THIS HAS HAPPENED TO ME ABOUT 4 TIMES SINCE I GOT THE CAR IN NOVEMBER OF 2019. *TR
NHTSA ODI #11337116
70,000 miles · Jun 13, 2020
Latches/locks/linkagesStructureUnknown Or Other
MUSTANG'S DOORS OPEN WHILE DRIVING IN MOTION, ON A CITY STREET AND HIGHWAY. IT SEEMS TO HAVE FAULTY DOOR LATCHES. *TR
NHTSA ODI #11328642
63,100 miles · May 23, 2020
Latches/locks/linkagesStructure
TRAVELING ON THE INTERSTATE AT APPROXIMATELY 70 MPH, TWICE IN A 12 HOUR DRIVING PERIOD MY DRIVER?S DOOR UNLATCHED AND I GOT A ?DRIVERS DOOR AJAR? WARNING ON THE DASH AND COULD SEE DAYLIGHT AROUND THE RIM OF THE DOOR. FOUND THESE REFERENCE NUMBERS ONLINE 20V177000 FORD REF #20S15. *TR
NHTSA ODI #11325665
88,450 miles · Jan 31, 2020
Latches/locks/linkagesStructure
WHILE DRIVING DOWN THE INTERSTATE IN BEAUMONT TEXAS AT 70 MPH THE PASSENGER SIDE DOOR JUST CAME UNLATCHED. THEN WITHIN 3 MINS THRE DRIVER SIDE DOOR DID THE SAME THING! WE OPENED THE REST OF THE WAY N RECLOSED. BUT THAT'S SCARY AT 70MPH!
NHTSA ODI #11306410
50,000 miles · Dec 19, 2019
Latches/locks/linkagesStructure
VEHICLE WAS ON THE HIGHWAY GOING 70+ MPH, PASSENGER DOOR SUDDENLY CAME LOOSE AND STARTED GETTING PASSENGER DOOR AJAR LIGHTS AND YOU COULD HEAR WIND PASSING INTO THE CAR. THANKFULLY THE PASSENGER WAS HOLDING THE DOOR AT THE TIME SO IT DID NOT FULLY OPEN. VEHICLE HAS BEEN REPAIRED.*DT*JB
NHTSA ODI #11290216
Mileage unknown · Dec 7, 2019
Service BrakesStructure
I PURCHASED MY DREAM CAR FROM AUTONATION OF FREMONT/ HONDA. I DROVE 90 MINUTES FROM MY HOUSE PURCHASE THE SHELBY. UPON ARRIVAL, I MET WITH [XXX], SUPERVISOR IN SALES. BEFORE SIGNING DOCUMENTS, THE PURCHASE PRICE OF THE CAR WAS ADVERTISED AT 45,900. [XXX] INDICATED THE PRICE WAS ADVERTISED WRONG AND WAS AT 47,500. [XXX] STATED T…
Read full complaint
I PURCHASED MY DREAM CAR FROM AUTONATION OF FREMONT/ HONDA. I DROVE 90 MINUTES FROM MY HOUSE PURCHASE THE SHELBY. UPON ARRIVAL, I MET WITH [XXX], SUPERVISOR IN SALES. BEFORE SIGNING DOCUMENTS, THE PURCHASE PRICE OF THE CAR WAS ADVERTISED AT 45,900. [XXX] INDICATED THE PRICE WAS ADVERTISED WRONG AND WAS AT 47,500. [XXX] STATED TO MAKE UP THE PRICE DIFFERENCE, HE WAS GOING TO TINT THE WINDOWS AND ADD PAINT PROTECTION. LAST MONTH I ATTEMPTED TO MAKE A CLAIM LAST MONTH FOR THE SWIRL MARKS AND FADING ON BUMPERS AND BREMBO BRAKES. WELL, AUTONATION INDICATED I DID NOT HAVE THE PAINT PROTECTION WARRANTY. I HAVE ATTEMPTED TO CONTACT MO, AND [XXX], GENERAL SALES MANAGER OF AUTONATION, NO RESPONSE. THERE ARE OTHER COMPLAINTS, BUT THIS IS WHAT PUT IT OVER THE TOP. DURING SIGNING OF THE CONTRACT, THEY UP SOLD ME 6000 DOLLARS OF VARIES WARRANTIES. BY THE TIME I CAME HOME TO READ THE DOCUMENTS, I CANCELED ALL THE WARRANTIES. IT TOOK AUTONATION 2 MONTHS TO FIX THE DOCUMENTS AND AUTONATION STATED WE COULD NOT REMOVE WINDSHIELD INSURANCE. I STILL PAID 700 JUST TO GET THE DOCUMENTS IN ORDER. NOT ONLY THAT, [XXX] STATED MY BREMBO BRAKES SQUEAK BECAUSE THEY ARE "HIGH PERFORMANCE", HE DIDN'T FIX THE SQUEAK EVEN WHEN I BROUGHT THE CAR BACK WHEN IT WAS TINTED. BY FAR, THIS IS THE WORST CAR EXPERIENCE I EVER HAD. I CALLED AUTONATION COOPERATE AND THEY NEVER RETURNED MY CALL. THANK YOU [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #11287693
Official recalls
5Sep 12, 2025
Ford Motor Company (Ford) is recalling certain 2015-2017 Mustang vehicles. Water and road salt may corrode the front seat belt anchor pretensioner cables.
Consequence & remedy
Consequence: A corroded cable can break, preventing the seat belt from properly restraining an occupant, and increasing the risk of injury during a crash.
Remedy: Dealers will inspect and replace both front seat belt anchor pretensioner assemblies, as necessary. In addition, dealers will remove sections of the carpet and underlayment that contact the cables. Dealers will also inspect the A-pillar sealing patches, and as necessary, install A-pillar body plugs, and/or inspect and replace the front outboard seat bolts. Repairs will be performed free of charge. Interim letters, notifying owners of the safety risk, were mailed October 20, 2025. Additional letters will be sent once the final remedy is available, anticipated December 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S92. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov September 17, 2025.
Sep 3, 2025
Ford Motor Company (Ford) is recalling certain 2015-2019 Lincoln MKC, Mustang, F-350 SD, F-250 SD, F-450 SD, 2015-2017 Lincoln Navigator, Expedition, 2015-2018 Edge, Transit Connect, 2016-2019 F-550 SD, Transit, 2017-2019 Econoline, and 2019 Ranger vehicles. The rearview camera may display a distorted, inverted, or blank image when the vehicle is in reverse.
Consequence & remedy
Consequence: A rearview camera that displays an inverted, distorted, or blank image can reduce the driver’s view behind the vehicle, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the rearview camera as necessary, free of charge. Owner notification letters were mailed January 13, 2026. Ford owners will receive letters in phases, beginning January 2026 and June 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25S89. This recall expands previous NHTSA recall number 25V270. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning September 8, 2025.
Feb 16, 2022
Ford Motor Company (Ford) is recalling certain 2015-2017 Mustang vehicles. The rearview camera wiring may be loose or damaged, which can result in a blank or distorted image.
Consequence & remedy
Consequence: A rearview camera that displays a blank or distorted image can reduce the driver's rear view, increasing the risk of a crash.
Remedy: Dealers will inspect and repair the decklid wiring harness and/or replace the rearview camera, as necessary, free of charge. Owner notification letters were mailed December 23, 2022 and June 26, 2023. Remedy parts are expected to become available in the 4th Quarter of 2022. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 22S06.
Oct 26, 2016
Ford Motor Company (Ford) is recalling certain model year 2015-2017 Mustang vehicles manufactured February 24, 2015, to August 30, 2016. A hose may separate from the engine oil cooler tube assembly causing an oil leak.
Consequence & remedy
Consequence: A sudden loss of engine oil may cause engine failure, increasing the risk of a crash. Additionally, an oil leak, in the presence of an ignition source, increases the risk of a fire.
Remedy: Ford will notify owners, and dealers will replace the engine oil cooler tube assembly, free of charge. The recall began on March 23, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S40.
Oct 26, 2015
Ford Motor Company (Ford) is recalling certain model year 2016 Ford Mustang vehicles manufactured September 26, 2015, to October 1, 2015. The front and rear seat belts and child seat tether anchors may have been damaged in shipping from the supplier to the vehicle assembly plant and may not adequately restrain the occupant in a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 208, "Occupant Crash Protection," and 225, "Child restraint anchorage systems."
Consequence & remedy
Consequence: If the restraint components do not function as intended, the occupants may not be properly restrained in the event of a crash, increasing their risk of injury.
Remedy: Ford will notify owners, and dealers will replace the front and rear seat belt assemblies and the child seat tether anchors, free of charge. The recall began on December 18, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15C13.
Additional source detail variants (2)
Child Seat:tether: Connector/clip
Ford Motor Company (Ford) is recalling certain model year 2016 Ford Mustang vehicles manufactured September 26, 2015, to October 1, 2015. The front and rear seat belts and child seat tether anchors may have been damaged in shipping from the supplier to the vehicle assembly plant and may not adequately restrain the occupant in a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 208, "Occupant Crash Protection," and 225, "Child restraint anchorage systems."
Consequence: If the restraint components do not function as intended, the occupants may not be properly restrained in the event of a crash, increasing their risk of injury.
Remedy: Ford will notify owners, and dealers will replace the front and rear seat belt assemblies and the child seat tether anchors, free of charge. The recall began on December 18, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15C13.
Seat Belts
Ford Motor Company (Ford) is recalling certain model year 2016 Ford Mustang vehicles manufactured September 26, 2015, to October 1, 2015. The front and rear seat belts and child seat tether anchors may have been damaged in shipping from the supplier to the vehicle assembly plant and may not adequately restrain the occupant in a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 208, "Occupant Crash Protection," and 225, "Child restraint anchorage systems."
Consequence: If the restraint components do not function as intended, the occupants may not be properly restrained in the event of a crash, increasing their risk of injury.
Remedy: Ford will notify owners, and dealers will replace the front and rear seat belt assemblies and the child seat tether anchors, free of charge. The recall began on December 18, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15C13.
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.