Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
730–25K
5325–50K
4350–75K
2675–100K
8100–150K
1150K+
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
31,000 miles · Mar 23, 2020
Exterior Lighting
TOOK MY CAR FOR INSPECTION AND REJECTED FOR 3RD HIGH MOUNT BRAKE LIGHT NOT WORKING. CAR ONLY HAS 31000 MILES. VERY COSTLY REPAIR.. NO POWER GOING TO LIGHT.FORD MADE POOR QUALITY LED SYSTEM FAILED. RESEARCHED AND FOUND OUT HIGH NUMBER OF THESE LIGHT SYSTEM FAILED WITH LOW MILAGE. I BELIEVE OSHA HAS A REGULATION CONCERNING QUALI…
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TOOK MY CAR FOR INSPECTION AND REJECTED FOR 3RD HIGH MOUNT BRAKE LIGHT NOT WORKING. CAR ONLY HAS 31000 MILES. VERY COSTLY REPAIR.. NO POWER GOING TO LIGHT.FORD MADE POOR QUALITY LED SYSTEM FAILED. RESEARCHED AND FOUND OUT HIGH NUMBER OF THESE LIGHT SYSTEM FAILED WITH LOW MILAGE. I BELIEVE OSHA HAS A REGULATION CONCERNING QUALITY OF WORK. A BETTER QUALITY OF LIGHTNING SYSTEM NEEDS TO DEVELOPED TO ANF FORD NEEDS TO REPLACE THE LIGHT SYSTEM WITHOUT ANY COST FOR CUSTOMERS. DEFINITELY A RECALL ITEM SINCE IT CAN GO OUT ANYTIME WHILE DRIVING PLACING THE DRIVER AND OTHER DRIVERS BEHING THE CAR.
NHTSA ODI #11319049
Mileage unknown · Mar 13, 2020
Unknown Or Other
EVAPORATOR CORE WAS INSTALLED INCORRECTLY ON THE AIR CONDITIONER
NHTSA ODI #11317926
71,796 miles · Mar 12, 2020
Service Brakes
WHILE DRIVING ON A RESIDENTIAL STREET AT A LOW RATE OF SPEED I ATTEMPTED TO STOP AT A STOP SIGN. THE BRAKE PEDAL WENT COMPLETELY TO THE FLOOR. THE VEHICLE DID NOT STOP. MANY LIGHTS AND WARNINGS LIT UP LETTING ME KNOW I HAD NO BRAKE FLUID. I STOPPED THE VEHICLE USING THE EMERGENCY BRAKE. AFTER HAVING IT TOWED TO FORD AND INSPECTE…
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WHILE DRIVING ON A RESIDENTIAL STREET AT A LOW RATE OF SPEED I ATTEMPTED TO STOP AT A STOP SIGN. THE BRAKE PEDAL WENT COMPLETELY TO THE FLOOR. THE VEHICLE DID NOT STOP. MANY LIGHTS AND WARNINGS LIT UP LETTING ME KNOW I HAD NO BRAKE FLUID. I STOPPED THE VEHICLE USING THE EMERGENCY BRAKE. AFTER HAVING IT TOWED TO FORD AND INSPECTED IT WAS DISCOVERED THAT THE PASSENGER SIDE BRAKE LINE HAD RUPTURED AND THE DRIVER SIDE BRAKE LINE HAD A 'BUBBLE' AND ALSO NEEDED REPLACEMENT.THIS WAS A POTENTIALLY VERY DANGEROUS SITUATION. IF I WERE ON THE HIGHWAY AT A HIGHER RATE OF SPEED THIS COULD HAVE BEEN FATAL. PLEASE INVESTIGATE THIS BRAKE FAILURE IN THE 2016 MUSTANG.
NHTSA ODI #11317737
55,000 miles · Mar 2, 2020
Electrical System
THE PASSENGER WINDOW TRIES TO GO UP AND DOWN WHILE DRIVING AND SITTING STATIONARY EVEN WHEN MY CAR IS OFF
NHTSA ODI #11315640
28,000 miles · Feb 28, 2020
Air BagsCrashInjury
I WAS IN A CAR ACCIDENT 8/28/2020. THE CAR WAS PUSHED OFF THE ROAD BY A TRACTOR TRAILER AND HIT A GUARDRAIL HEAD ON. THE AIR BAGS DID NOT DEPLOY. NOTICED A RECALL FOR THE TAKATA AIRBAG THAT I NEVER RECEIVED. HOW MANY OTHER CARS ARE OUT THERE. THE CAR WAS A MUSTANG BOUGHT IN 2016 AND WAS TOTALED.
NHTSA ODI #11312008
1,720 miles · Feb 18, 2020
Unknown Or Other
WHEN I HAVE MY FRONT RIGHT WINDOW DOWN ABOUT THREE INCHES AND ACCELERATE, I GET CAR EXHAUST INTO CABIN. I LATER FOUND OUT THAT THE EXHAUST MOVES FROM THE EXHAUST PIPE OF THE MOVING CAR INTO THE CAR TRUNK AND THEN INTO THE CABIN OF MY CAR. I FIRST NOTICED THIS DAYS AFTER I PURCHASED THE CAR BUT THE DEALER COULD NOT DUPLICATE …
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WHEN I HAVE MY FRONT RIGHT WINDOW DOWN ABOUT THREE INCHES AND ACCELERATE, I GET CAR EXHAUST INTO CABIN. I LATER FOUND OUT THAT THE EXHAUST MOVES FROM THE EXHAUST PIPE OF THE MOVING CAR INTO THE CAR TRUNK AND THEN INTO THE CABIN OF MY CAR. I FIRST NOTICED THIS DAYS AFTER I PURCHASED THE CAR BUT THE DEALER COULD NOT DUPLICATE IT AND SAID IT WAS PROBABLY A NEW CAR SMELL. I HAD IT CHECKED AGAIN THREE MONTHS AFTER PURCHASE BUT, AGAIN, MECHANIC HAD SAME OUTCOME. I FINALLY GOT FED UP WITH THE SMELL AND ASKED AGAIN 18 MONTHS AFTER PURCHASE. FORD SPENT WEEKS EXAMINING IT AND HAD A FORD TECHNICIAN ALSO EXAMINE THE CAR. FORD FOUND THE SMELL THIS TIME AND SAID ANOTHER MUSTANG LIKE MINE ALSO HAD THE SAME SMELL. FORD CLAIMED THE SMELL WAS NORMAL FOR THIS TYPE OF MUSTANG. I HAD AN EXPERT TEST THE CAR SEVERAL HOURS ONE AFTERNOON (SEE PART OF REPORT ATTACHED). HE FOUND THAT CARBON MONOXIDE WAS MUCH HIGHER IN THE TRUNK THAN IN THE CABIN. HE FOUND LEVELS AS HIGH AS 411 PPM IN THE TRUNK AND 14 PPM IN THE CABIN. HE CONCLUDED THAT EXHAUST MOVED FROM EXHAUST PIPE TO CAR TRUNK TO CAR CABIN.
NHTSA ODI #11309960
78,971 miles · Feb 5, 2020
Engine
TL* THE CONTACT OWNS A 2015 FORD MUSTANG. THE CONTACT STATED DRIVING AT 30 MPH, SEVERAL WARNING LIGHTS ILLUMINATED. THE CONTACT VEERED TO THE SHOULDER OF THE ROAD AS THE VEHICLE STALLED. THERE WAS AN ABNORMAL ODOR COMING FROM THE ENGINE. THE CONTACT UNAWARE IF THERE WAS ANY LEAKS. THE CONTACT TURN THE VEHICLE OFF AND BACK ON WHI…
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TL* THE CONTACT OWNS A 2015 FORD MUSTANG. THE CONTACT STATED DRIVING AT 30 MPH, SEVERAL WARNING LIGHTS ILLUMINATED. THE CONTACT VEERED TO THE SHOULDER OF THE ROAD AS THE VEHICLE STALLED. THERE WAS AN ABNORMAL ODOR COMING FROM THE ENGINE. THE CONTACT UNAWARE IF THERE WAS ANY LEAKS. THE CONTACT TURN THE VEHICLE OFF AND BACK ON WHICH RESUMED NORMAL VEHICLE OPERATION. THE VEHICLE WAS TAKEN TO MONRO AUTO SERVICE AND TIRE CENTER 1769 KUSER RD, HAMILTON TOWNSHIP, NJ 08690, (609) 308-3139 WHERE IT WAS DIAGNOSED THAT THE WATER PUMP, DRIVE BELT FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE CONTACT REFERENCED NHTSA CAMPAIGN NUMBER: 16V779000 (ENGINE AND ENGINE COOLING) AS A POSSIBLE SOLUTION TO THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE CONTACT WAS REFERRED TO THE NHTSA HOTLINE TO FILE A COMPLAINT. THE FAILURE MILEAGE WAS APPROXIMATELY 78,971.
NHTSA ODI #11307283
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
69,500 miles · Jan 29, 2020
Service Brakes
DUE TO A FAULTY DESIGN THE VACUUM PUMP THAT DRIVES THE BREAK BOOSTER IS CONNECTED TO THE CAM WITH A THREADED CAMSHAFT EXTENSION. THIS PART SHEARED OFF CAUSION THE VACUUMED PUMP TO LOOSE VACUUM AND THE BREAK BOOSTER TO UNEXPECTEDLY STOP FUNCTIONING. THE VEHICLE WAS IN MOTION ON THE INTERSTATE. THE FAILURE WAS NOTICED AFTER ATT…
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DUE TO A FAULTY DESIGN THE VACUUM PUMP THAT DRIVES THE BREAK BOOSTER IS CONNECTED TO THE CAM WITH A THREADED CAMSHAFT EXTENSION. THIS PART SHEARED OFF CAUSION THE VACUUMED PUMP TO LOOSE VACUUM AND THE BREAK BOOSTER TO UNEXPECTEDLY STOP FUNCTIONING. THE VEHICLE WAS IN MOTION ON THE INTERSTATE. THE FAILURE WAS NOTICED AFTER ATTEMPTING TO BREAK. THE RESIDUAL VACUUM PREVENTED THE BREAK LIGHT FROM ILLUMINATING TEMPORARILY. THE BREAKS BECAME DIFFICULT TO PRESS, ABS SPORADICALLY ENGAGED AND THE BREAKING SITUATION WAS UNCONTROLLED PLACING LIFE AND PROPERTY AT RISK.
NHTSA ODI #11302703
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
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.
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.
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.
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.
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.
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