IllustrationI have a 2017 Subaru Forester Touring. It has stalled on acceleration twice. Once on a divided highway attempting to increase speed going up slight incline around 60mph. It stalled and shut off. It also stalled but didn't completely shut off going through an intersection at 45mph today.
2017 Subaru Forester
Owner reports · Recalls · Investigations
More warning signs than most Forester years
Owner complaints for the 2017 Subaru Forester are substantially higher than the model-year median of 131.
About this comparison →How this year compares
Owner complaints by model year
Compare all Forester 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
1270–25K
12125–50K
4450–75K
1875–100K
8100–150K
3150K+
321 reports with mileage · 265 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.
- Air Bags. Review the 164 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 106 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Visibility/wiper. Review the 104 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
40 crash reports1 fire reports25 injury reports
Engine complaints
47 reportsThe catalytic converter had substantial rust and was beyond repair (i.e., welding). The vehicle was only 6 years old and did not have any issues with rust identified during the 2021 annual inspection (as required by our state). This year, the vehicle failed inspection due to the amount of damage from rust. Our mechanic advised t…
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The catalytic converter had substantial rust and was beyond repair (i.e., welding). The vehicle was only 6 years old and did not have any issues with rust identified during the 2021 annual inspection (as required by our state). This year, the vehicle failed inspection due to the amount of damage from rust. Our mechanic advised the rust was most likely caused by the plastic covers surrounding the catalytic converter not allowing enough air to circulate to keep the area dry / prevent rust from forming.
Exhaust fumes noticed in the passenger cabin of the vehicle. PZEV equipped. I have heard of others experiencing the same issue. This was noted some time ago, however parts were not available at the time and Subaru N.A. had not responded to my written correspondance until i finally phoned them. Very concerned about potential f…
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Exhaust fumes noticed in the passenger cabin of the vehicle. PZEV equipped. I have heard of others experiencing the same issue. This was noted some time ago, however parts were not available at the time and Subaru N.A. had not responded to my written correspondance until i finally phoned them. Very concerned about potential for Carbon Monoxide. I understandf Ford explorer and VW had similar issues. The attached estimate was recently obtained from the dealership but service rep claimed this was the recommended service at time of discovery.
Noticed sputtering in my car. Took it to dealership. I was told I needed condenser and compressor. When googled, there was a recall for condenser for Subaru Forester 2017 model. The dealership told me that it’s only vin# specific for that reason not covered under recall. That was a shock. Same model and year but they would only …
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Noticed sputtering in my car. Took it to dealership. I was told I needed condenser and compressor. When googled, there was a recall for condenser for Subaru Forester 2017 model. The dealership told me that it’s only vin# specific for that reason not covered under recall. That was a shock. Same model and year but they would only cover certain vin #? For the same known issue? Why? It should cover all vin # for the safety of the consumer. I am writing to report the issues encountered so far with this vehicle. 1. Batteries were leaking prematurely, I got it replaced 4 months ago 2. Need condenser and compressor replaced at less than 60,000 miles for a newly car purchased car from dealership. Please look in to this issue if reported by more consumers for safety reason and also to hold the company accountable for faulty parts. Thank you.
The exhaust pipe assembly for our 2017 non-turbo Subaru Forester has failed. Two other similar complaints for this model and year vehicle have been submitted to NHTSA (ID#’s 11429564 and 11395158). Exhaust fumes spread within the vehicle cabin and presents a significant safety and health issue for occupants. A similar problem…
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The exhaust pipe assembly for our 2017 non-turbo Subaru Forester has failed. Two other similar complaints for this model and year vehicle have been submitted to NHTSA (ID#’s 11429564 and 11395158). Exhaust fumes spread within the vehicle cabin and presents a significant safety and health issue for occupants. A similar problem has been reported for turbo charge vehicles for which Subaru issued a voluntary emissions recall on March 27, 2020. No such recall for non-turbo vehicles has been issued by Subaru. The vehicle will be inspected by the local dealer. I request NHTSA investigate this issue and request Subaru expand its voluntary emissions recall to non-turbo vehicles.
I was pulling into a parellel parking space, braking to slow to a stop when my car surged froward inspite of increased and continued braking and hit the car in front of me. The collision is what stopped the car. My Subaru Forester is very damaged (bumper, lights, and frame rail) and the car in front also had extensive damage. My…
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I was pulling into a parellel parking space, braking to slow to a stop when my car surged froward inspite of increased and continued braking and hit the car in front of me. The collision is what stopped the car. My Subaru Forester is very damaged (bumper, lights, and frame rail) and the car in front also had extensive damage. My safety and the safety of the neigbhorhood cars, pedestrians and homes was at risk given my car was unstoppable despite braking. I couldn't understand what happened so I did an internet search for acceleration while braking and many articles came up reguarding several Subaru models (including mine) of "sudden unintended acceleration" issues. What was described was exactly what I experienced. There are several class action lawsuits in the works as Subaru has not taken any responsibility. No dashboard warning lights came on before or after the crash. I took the car to the Subaru dealer I purshased it from. At first they said there would be a 250. dollar diagnostic fee. When I picked it up they said there was an ECM (Engine Control Module) update and they performed it on my car. The update was designed "to address problems" like those I described. The clerk would not elaborate, was very vague and would say nothing beyond that except he didn't know if the update would fix the problem-that we would just have to wait and see. I explained that if it happened again it could have catastrophic consequences, he had nothing to say. He waived the service fee. I got the impression Subaru didn't want to say much because they would be responsible. By waiving the fee they hoped I would just go away. I am left with: a severely damaged car, as is my neighbor's, an accident that looks to be my fault-when in fact it is Subaru's fault, a large deductable to pay, a point on my lisence and increased insurance rates, and a car I have no faith in. This should not be on my driving record. Subaru should be found responsible.
I started noticing exhaust fumes in the cabin while idling at a stop. I did some research and found that several Foresters have had an issue with their exhaust manifold bellows cracking on a flexi pipe. So I started looking for a leak. I took the plastic underbody engine cover off and took off the heat shield and located the cr…
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I started noticing exhaust fumes in the cabin while idling at a stop. I did some research and found that several Foresters have had an issue with their exhaust manifold bellows cracking on a flexi pipe. So I started looking for a leak. I took the plastic underbody engine cover off and took off the heat shield and located the crack on the flexi pipe. The flexi pipe have been replaced at approximately 60k miles. It lasted for approximately a year or another 30K miles and I had to replace it again. My vehicle currently has 160K and the same issue comes back. It is very frustrating because I feel very lightheaded when driving this vehicle and replacement of this part is very expensive. $1800 for the full manifold.
My 2017 Subaru Forester has 52,000 miles driven. Recently the ignition key will NOT turn to start the engine. The transmission was in park and all the doors were fully closed. After 15 minutes trying several times to no avail it did finally turn to the right and the engine started. Also, previously a few times, randomly, the key…
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My 2017 Subaru Forester has 52,000 miles driven. Recently the ignition key will NOT turn to start the engine. The transmission was in park and all the doors were fully closed. After 15 minutes trying several times to no avail it did finally turn to the right and the engine started. Also, previously a few times, randomly, the key would not turn all the way to to the left to turn the engine off. Again, the car was in park and I kept my foot on the brake while trying. Each time this happened I had to move the transmission from Part to Drive and back to Park again, (while keeping my foot on the brake) and the key finally turned all the way to turn the engine off. I am now bringing the car to a Subaru dealer service shop (in Annapolis, Maryland) to try to have them repair this problem once and for all. Thank you, [XXX]. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
With engine running and shift lever in Park (CVT transmission) driver is unable to turn the engine off or remove the ignition key from the steering wheel. This occurs sporadically/unpredictably such that driver has no forewarning and cannot take proactive steps to avoid the problem, resulting in instances where driver is forced…
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With engine running and shift lever in Park (CVT transmission) driver is unable to turn the engine off or remove the ignition key from the steering wheel. This occurs sporadically/unpredictably such that driver has no forewarning and cannot take proactive steps to avoid the problem, resulting in instances where driver is forced to leave the car running in situations that present safety concerns. (Examples: in a garage or enclosed area; when temporarily exiting vehicle necessitating leaving the doors unlocked; etc.). The problem is widespread in Subaru vehicles and consistent with problems exhibited/described in Subaru Technical Service Bulletin (TSB) #16-112-18R for which no recall has to date been issued for corrective action by Subaru. Driver was told by Subaru of America that a diagnostics test is needed by a Subaru dealer to verify existence of the problem (which as stated occurs unpredictably) at driver's expense (locally approximately $140), with repair coverage of defective/poorly-designed shift or electrical components not being covered by Subaru beyond the standard warranty period for the affected vehicle. estimated cost of repair for defects as listed in the TSB (per on-line sources)...$400-$650 depending on dealer and geographical location.
EXHAUST MANIFOLD CRACKED AND NEEDED REPLACED; WAS FIRST ADVISED THAT THE CATALYT CONVERTER WAS BAD AND WOULD NEED REPLACED BY A NON SUBARU SERVICE PROVIDER. WHEN I TOOK TO SUBARU DEALER, WAS ADVISED I HAD TO PAY FOR 2 HOURS LABOR TO "DIAGNOSIS" THE EXHAUST BEFORE THEY COULD ADVISE OF ISSUE/FIX; DID NOT DO AT THAT TIME. NEXT SU…
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EXHAUST MANIFOLD CRACKED AND NEEDED REPLACED; WAS FIRST ADVISED THAT THE CATALYT CONVERTER WAS BAD AND WOULD NEED REPLACED BY A NON SUBARU SERVICE PROVIDER. WHEN I TOOK TO SUBARU DEALER, WAS ADVISED I HAD TO PAY FOR 2 HOURS LABOR TO "DIAGNOSIS" THE EXHAUST BEFORE THEY COULD ADVISE OF ISSUE/FIX; DID NOT DO AT THAT TIME. NEXT SUBARU MAINTENANCE REQUESTED TO HAVE SITUATION DIAGNOSED; WAS THEN ADVISED THAT DID NOT NEED TO REMOVE COVERS TO DIAGNOSIS, THEY KNEW IT WAS THE EXHAUST MANIFOLD. PART WAS ON BACKORDER; ORDERED AND THEN REPLACED; EXHAUST STILL LOUD AND NOW HAVE FUMES THAT WERE NOT PRESENT PRIOR TO THE REPAIR
Official recalls
119V701000 · Air Bags:sensor:occupant Classification
Oct 3, 2019
Subaru of America, Inc. (Subaru) is recalling certain 2015-2018 Forester vehicles equipped with heated seats. An electrical connection in the front passenger seat for the Occupant Detection System (ODS) may loosen.
Consequence & remedy
Consequence: If the connection loosens, the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.
Remedy: Subaru will notify owners, and dealers will inspect and, as necessary, replace the ODS sensor mat harness, free of charge. The recall began February 11, 2020. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WUM-98.
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
1PE19009 · Occupant Detection System (ods) Failure
Opened Aug 6, 2019 · Closed Jan 22, 2020
Status: closed (inferred from source dates) · Air Bags; Air Bags:frontal; Air Bags:frontal:passenger Side:inflator Module; Air Bags:sensor:occupant Classification
The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.
Additional source detail variants (4)
Air Bags:frontal:passenger Side:inflator Module
The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.
Air Bags:frontal
The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.
Air Bags:sensor:occupant Classification
The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.
Air Bags
The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.