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2016 Ford Mustang

Owner reports · Recalls · Investigations

More warning signs than most Mustang years

Owner complaints for the 2016 Ford Mustang are substantially higher than the model-year median of 81.

About this comparison →

When problems were reported

Mileage at the reported incident

204 reports with mileage · 171 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Engine. Review the 75 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 72 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Back Over Prevention. Review the 52 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

13 crash reports6 fire reports10 injury reports

What owners actually said

375 reports
37,000 miles · Jul 22, 2020
Electrical System

AIR CONDITIONER WAS BLOWING HOT AIR WHILE STATIONARY . SERVICE REPAIR STATED THERE WAS A LEAK IN THE EVAPORATOR COIL AND TO REPAIR IT THE COST IS $1700. BECAUSE THE COIL IS LOCATED BEHIND THE DASH THE WHOLE DASH HAS TO BE REMOVED TO GET TO THE COIL HENCE THE COSTLY REPAIR DUE TO WHERE THAT EVAPORATOR COIL IS LOCATED. SERVICE REP…

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AIR CONDITIONER WAS BLOWING HOT AIR WHILE STATIONARY . SERVICE REPAIR STATED THERE WAS A LEAK IN THE EVAPORATOR COIL AND TO REPAIR IT THE COST IS $1700. BECAUSE THE COIL IS LOCATED BEHIND THE DASH THE WHOLE DASH HAS TO BE REMOVED TO GET TO THE COIL HENCE THE COSTLY REPAIR DUE TO WHERE THAT EVAPORATOR COIL IS LOCATED. SERVICE REPAIRMAN AT DEALERSHIP ORIGINALLY SAID ALTERNATOR WAS THE PROBLEM AND THAT IT STILL NEEDS TO BE REPLACED PER DEALERSHIP. THE PROBLEM WITH THE EVAPORATOR COIL APPEARS TO BE A COMMON PROBLEM IN MUSTANGS WITH AS LITTLE AS 2000 MILES ON THEM. I FIRST NOTICED THIS PROBLEM ALMOST A YEAR AGO WHEN MY CAR HAD ABOUT 37,000 MILES ON IT. DID NOT HAVE IT REPAIRED.

NHTSA ODI #11340905

20,000 miles · Jul 21, 2020
Unknown Or Other

THE AC IN MY 2016 FORD MUSTANG HAS STOPPED WORKING AND I HAVE RESEARCHED ONLINE TO FIND THAT MANY 2016 FORD MUSTANG OWNERS ARE HAVING SIMILAR ISSUES. MY CAR IS JUST OUT OF WARRANTY AND ONLY HAS 20,000 MILES ON IT YET IS HAVING THIS MAJOR ISSUE.

NHTSA ODI #11340681

70,000 miles · Jul 19, 2020
SeatsSuspension

ALL UPPER AND LOWER CONTROL ARMS HAVE HAD TO BE REPLACED ON FRONT OF CAR DUE TO SQUEAKING AND POPPING NOISES COMING FROM THEM. ALSO HEATED AND COOLED SEATS WENT OUT DUE TO PLUG SHORTING OUT.

NHTSA ODI #11340205

102,000 miles · Jul 12, 2020
Air BagsCrash

CAR MOTION AIRBAGS FAILED TO DEPLOY. CAR WAS TOAD FROM THE FREEWAY TO DRIVERS HOUSE. CAR LANDED SIDE OF THE FREEWAY AT A DITCH.

NHTSA ODI #11338839

30,000 miles · Jul 10, 2020
Latches/locks/linkages

TL* THE CONTACT OWNS A 2016 FORD MUSTANG. THE CONTACT STATED WHILE DRIVING AT SPEEDS MORE THAN 80 MPH, A MESSAGE DISPLAYED ON THE INSTRUMENT PANEL INDICATING THAT THE DRIVER'S SIDE AND PASSENGER'S SIDE DOORS WERE AJAR. THE CONTACT STATED WIND COULD BE HEARD ENTERING THE VEHICLE. THE FAILURE RECURRED ON 4 TIMES. THE CAUSE OF THE …

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TL* THE CONTACT OWNS A 2016 FORD MUSTANG. THE CONTACT STATED WHILE DRIVING AT SPEEDS MORE THAN 80 MPH, A MESSAGE DISPLAYED ON THE INSTRUMENT PANEL INDICATING THAT THE DRIVER'S SIDE AND PASSENGER'S SIDE DOORS WERE AJAR. THE CONTACT STATED WIND COULD BE HEARD ENTERING THE VEHICLE. THE FAILURE RECURRED ON 4 TIMES. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. LAMARQUE FORD LOCATED AT 3101 WILLIAMS BLVD, KENNER, LA 70065, AND THE MANUFACTURER WERE NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 30,000. THE VIN WAS NOT AVAILABLE.*DT

NHTSA ODI #11338631

50,950 miles · Jul 9, 2020
Latches/locks/linkages

MY DRIVER SIDE DOOR HAS OPENED TWICE NOW WHILE DRIVING AFTER BEING CLOSED SECURELY. I UNDERSTAND THAT THE 2015 MUSTANG HAS A RECALL FOR THE DOOR LATCH. I AM WONDERING IF THIS IS THE SAME ISSUE.

NHTSA ODI #11338464

4,000 miles · Jul 6, 2020
Unknown Or Other

THE EVAPORATOR CORE ON MY CAR HAS A LEAK AND NEEDS TO BE REPLACED, OUT OF WARRANTY AND WITH ONLY 4000 MILES ON IT, FOR $1800. THIS IS NOT AN ISOLATED INCIDENT; FORUMS AROUND THE INTERNET ARE FILLED WITH HUNDREDS OF PAGES OF CONSUMERS WITH IDENTICAL STORIES. FORD HAS ISSUED A TSB ACKNOWLEDGING THE PROBLEM (TSB #: TSB18-2166, NHTS…

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THE EVAPORATOR CORE ON MY CAR HAS A LEAK AND NEEDS TO BE REPLACED, OUT OF WARRANTY AND WITH ONLY 4000 MILES ON IT, FOR $1800. THIS IS NOT AN ISOLATED INCIDENT; FORUMS AROUND THE INTERNET ARE FILLED WITH HUNDREDS OF PAGES OF CONSUMERS WITH IDENTICAL STORIES. FORD HAS ISSUED A TSB ACKNOWLEDGING THE PROBLEM (TSB #: TSB18-2166, NHTSA ID #: 10143077), BUT HAS NOT ISSUED A RECALL OR BUYBACK PROGRAM, DESPITE THE FACT THAT THOUSANDS OF CARS ARE LEAKING R134, A TOXIC CHEMICAL AND ENVIRONMENTAL SAFETY HAZARD, INTO THE AIR. THIS IS ESPECIALLY TRUE IF CONSUMERS DON'T HAVE THE SPARE NEARLY $2000 TO SPEND ON REPLACING THE CORE, MEANING THE OLD ONE WILL CONTINUE TO LEAK INDEFINITELY.

NHTSA ODI #11337617

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…

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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

55,000 miles · Jun 26, 2020
Latches/locks/linkages

TL* THE CONTACT OWNS A 2016 FORD MUSTANG. THE CONTACT STATED THAT ON SEVERAL OCCASIONS WHILE DRIVING AT VARIOUS SPEEDS, EITHER THE DRIVER'S OR PASSENGER'S SIDE DOORS UNLATCHED AND OPENED. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED NOR REPAIRED. JERRY'S FORD LOCATED AT 847 E MARKET ST, LEESBURG, VA 20176 AND THE MANUFACTURER WERE …

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TL* THE CONTACT OWNS A 2016 FORD MUSTANG. THE CONTACT STATED THAT ON SEVERAL OCCASIONS WHILE DRIVING AT VARIOUS SPEEDS, EITHER THE DRIVER'S OR PASSENGER'S SIDE DOORS UNLATCHED AND OPENED. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED NOR REPAIRED. JERRY'S FORD LOCATED AT 847 E MARKET ST, LEESBURG, VA 20176 AND THE MANUFACTURER WERE MADE AWARE OF THE FAILURE BUT PROVIDED NO ASSISTANCE. THE FAILURE MILEAGE WAS 55,000.

NHTSA ODI #11331115

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

Official recalls

5

25V614000 · Seat Belts:pretensioner

Sep 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.

25V572000 · Back Over Prevention: Sensing System: Camera

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.

22V082000 · Back Over Prevention: Sensing System: Camera

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.

16V779000 · Engine And Engine Cooling:cooling System:hoses/lines/piping/fittings

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.

15V707000 · Child Seat:tether: Connector/clip; Seat Belts

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

1

EA21002 · 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.