IllustrationI am starting to smell fuel inside of my car everytime I fill up my vehicle.
2016 Dodge Charger
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Charger years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
300–25K
2925–50K
2150–75K
1375–100K
13100–150K
1150K+
107 reports with mileage · 75 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.
- Structure. Review the 53 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 25 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 25 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
7 crash reports2 fire reports8 injury reports
What owners actually said
182 reportsThe contract owns a 2016 Dodge Charger. The contact stated that while driving approximately 38 MPH, the vehicle began cranking. The contact was able to pull to the side of the road, where they called a relative. Once the relative arrived and inspected the vehicle, they noticed the drive shaft had detached. They drove back up the…
Read full complaint
The contract owns a 2016 Dodge Charger. The contact stated that while driving approximately 38 MPH, the vehicle began cranking. The contact was able to pull to the side of the road, where they called a relative. Once the relative arrived and inspected the vehicle, they noticed the drive shaft had detached. They drove back up the road the truck had just traveled and found the drive shaft. The vehicle was towed to a mechanic, who confirmed the drive shaft had detached from the vehicle, causing a fracture in both the transmission and transfer case. The contact found information on NHTSA Campaign Numbers 16V-043000 (Structure) and 18V-281000 (Power Train); reported a similar failure. The vehicle's drive shaft, transmission, and transfer case were scheduled for replacement. The manufacturer was informed, and it was confirmed that the VIN was not attached to any recalls. The failure mileage was approximately 100,000.
The contact owns a 2016 Dodge Charger. The contact stated while driving at an undisclosed speed, the engine overheated. The vehicle was taken to an independent mechanic where it was diagnosed with a failed oil cooler. The contact was informed that all the oil had spilled into the coolant reservoir. In addition, the contact was i…
Read full complaint
The contact owns a 2016 Dodge Charger. The contact stated while driving at an undisclosed speed, the engine overheated. The vehicle was taken to an independent mechanic where it was diagnosed with a failed oil cooler. The contact was informed that all the oil had spilled into the coolant reservoir. In addition, the contact was informed that the oil cooler was made of plastic and was warped. The contact was informed that the oil cooler needed to be replaced. The vehicle was in the process of being repaired. The contact referenced an unknown recall which had a similar failure description, however the contact's VIN was not associated. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA Hotline and report the failure. The failure mileage was approximately 110,000.
Dodge Charger, 2016, won't turn on a list. Key is in the cup holder. On the driver's side also there are many videos showing this same issue with many dodge, twenty sixteen chargers.
I am the original owner of a 2016 Dodge Charger SXT AWD (VIN: [XXX] ). On February 3, 2026, while driving at highway speeds, the vehicle suffered a catastrophic mechanical failure. I heard a loud metallic grinding noise from underneath, followed by an immediate loss of power and "Service Transmission" and "SERV AWD" warnings on …
Read full complaint
I am the original owner of a 2016 Dodge Charger SXT AWD (VIN: [XXX] ). On February 3, 2026, while driving at highway speeds, the vehicle suffered a catastrophic mechanical failure. I heard a loud metallic grinding noise from underneath, followed by an immediate loss of power and "Service Transmission" and "SERV AWD" warnings on the dashboard. The vehicle became inoperable, and the engine could not be shut off through normal means after the incident. Recall Context: This vehicle has previously had Safety Recalls T03 (Driveshaft Bolts) and U60 (Front Driveshaft) performed in 2017/2018. However, the current failure is identical to the safety defects described in those recalls. This indicates a Recall Remedy Failure, posing a severe safety risk to the driver and others on the road. Current Dispute: The vehicle was towed to Preston CDJR of Dover, but the dealer claims they cannot diagnose the issue or read fault codes. They are attempting to charge $200/hour for unsuccessful diagnosis attempts. I have opened a case with Dodge Corporate (Case #XXX), but the Case Manager has temporarily closed the case due to the dealer's inability to provide a diagnosis, and neither party has responded to my inquiries for 2 business days. Requested Action: I am filing this complaint to request a formal investigation into this recurring safety defect and to compel the manufacturer to honor the safety recall by performing a physical inspection and necessary repairs at no cost to the consumer. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I recently tried to get my oil changed and they told me that the oil filter housing was cracked. After doing research on this there is several sources saying that there is lots that has had the same malfunction. Surprised there isn't a recall on this part
The contact owns a 2016 Dodge Charger. The contact stated that the dashboard and plastic around the gear shifter were folding outward. The contact was concerned that the parts would detach. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was a…
Read full complaint
The contact owns a 2016 Dodge Charger. The contact stated that the dashboard and plastic around the gear shifter were folding outward. The contact was concerned that the parts would detach. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 120,000. The VIN was not available.
The contact owns a 2016 Dodge Charger. The contact stated that while driving 40 MPH, while the accelerator pedal was depressed, there was an abnormal thumping sound coming from the front passenger’s side of the vehicle. The contact slowed down the thumping sound decreased; however, the faster the vehicle was driven, the louder t…
Read full complaint
The contact owns a 2016 Dodge Charger. The contact stated that while driving 40 MPH, while the accelerator pedal was depressed, there was an abnormal thumping sound coming from the front passenger’s side of the vehicle. The contact slowed down the thumping sound decreased; however, the faster the vehicle was driven, the louder the sound became. An independent mechanic was contacted. The vehicle was taken to be diagnosed, and the contact was informed that the front driveshaft needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 18V281000 (POWER TRAIN); however, the VIN was not included in the recall. The manufacturer was not notified of the failure. The failure mileage was 89,996.
The contact owns a 2016 Dodge Charger. The contact purchased the vehicle, and the vehicle was taken for the Emissions Test; however, the vehicle failed the Emissions Test. The contact notified the dealer and was informed that some unknown sensors had been replaced, and to allow for a week for the vehicle to adjust. The vehicle w…
Read full complaint
The contact owns a 2016 Dodge Charger. The contact purchased the vehicle, and the vehicle was taken for the Emissions Test; however, the vehicle failed the Emissions Test. The contact notified the dealer and was informed that some unknown sensors had been replaced, and to allow for a week for the vehicle to adjust. The vehicle was taken to the dealer, and the vehicle failed to start. The vehicle was not diagnosed. The contact stopped by the dealer to pick up the vehicle. The vehicle was restarted, and the contact drove the vehicle to the residence. The contact stated that in the evening, the vehicle failed to restart. After several attempts, the vehicle restarted. The contact stated that on a separate occasion, while driving 40 MPH, there was white smoke coming from the rear of the vehicle. The contact stated that there was a plastic burning odor and an abnormal fuel odor entering the vehicle through the A/C vents. There was no warning light illuminated. The vehicle was taken to the dealer. The contact requested that the vehicle have a full inspection, and the dealer refused. The contact was informed that the spark plugs and fuel pump needed to be replaced. The vehicle remained at the dealer unrepaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 97,000.
Odometer Faud. The contact purchased a 2016 Dodge Charger. The contact stated that while attempting to have the vehicle diagnosed, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was approximately 116,000 and at the time of diagnosis, it was disc…
Read full complaint
Odometer Faud. The contact purchased a 2016 Dodge Charger. The contact stated that while attempting to have the vehicle diagnosed, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was approximately 116,000 and at the time of diagnosis, it was discovered that the mileage was approximately 120,000.
Official recalls
518V332000 · Electrical System:software; Electrical System:wiring; Vehicle Speed Control:cruise Control
May 17, 2018
Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.
Consequence & remedy
Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.
Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.
Additional source detail variants (3)
Electrical System:software
Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.
Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.
Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.
Vehicle Speed Control:cruise Control
Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.
Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.
Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.
Electrical System:wiring
Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.
Consequence: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.
Remedy: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Note: Owners are advised to stop using cruise control until the software update has been performed. In the event that cruise control cannot be disengaged while driving, owners should firmly and steadily apply the brakes and shift the transmission to neutral, placing the vehicle in park once it has stopped.
18V281000 · Power Train:driveline:driveshaft
May 1, 2018
Chrysler (FCA US LLC) is recalling certain 2015-2018 Dodge Charger pursuit police vehicles equipped with all-wheel drive and V8 engines. The front driveshaft universal joint may seize or fracture causing the shaft to detach from the vehicle.
Consequence & remedy
Consequence: If the front driveshaft detaches from the vehicle it may become a road hazard, increasing the risk of a crash.
Remedy: Chrysler will notify owners, and dealers will replace the front driveshaft, free of charge. The recall began June 27, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U37.
17V824000 · Equipment
Dec 21, 2017
Chrysler (FCA US LLC) is recalling various Dodge, Chrysler, and RAM vehicles equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. A list of the affected trailer models is available at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V824-0103.pdf. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf
Consequence & remedy
Consequence: If the fire extinguisher does not function properly, it can increase the risk of injury in the event of a fire.
Remedy: Chrysler will notify owners instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began February 14, 2018. Owners may contact Chrysler customer service at 1-800-853-1403 or Kidde customer service service toll-free at 1-855-262-3540, or online at www.kidde.com and click on "Product Safety Recall" for more information. Chrysler's number for this recall is T82.
17V097000 · Power Train:axle Assembly:axle Shaft
Feb 14, 2017
Chrysler (FCA US LLC) is recalling certain 2014-2017 Dodge Charger and Chrysler 300 vehicles equipped with all-wheel drive (AWD). The front driveshaft bolts may loosen and allow the front driveshaft to disconnect, potentially causing a loss of motive power.
Consequence & remedy
Consequence: A loss of motive power can increase the risk of a crash.
Remedy: Chrysler will notify owners, and dealers will replace all eight front driveshaft bolts, free of charge. The recall began April 7, 2017. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is T03.
16V043000 · Structure
Jan 28, 2016
FCA US LLC (Chrysler) is recalling certain model year 2011-2016 Dodge Charger vehicles manufactured August 23, 2010, to January 7, 2016. When an affected vehicle is lifted using the supplied tire jack without chocking the wheels, the vehicle's body-side sill may give causing the tire jack to fail and the car to fall.
Consequence & remedy
Consequence: A car that falls unexpectedly increases the risk of injury.
Remedy: Chrysler will notify owners, and dealers will provide owners with wheel chocks and instructions for their use, free of charge. The recall began on March 21, 2016. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is S03.
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.