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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.

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When problems were reported

Mileage at the reported incident

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

Visibility/wiper complaints

104 reports
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39,000 miles · Oct 2, 2020
Visibility/wiper

GOT INTO MY CAR TO GO TO WORK AND NOTICED THE WINDSHIELD WAS CRACKED. THERE WERE NO BRANCHES OR OTHER LARGE ITEMS NEAR THE CAR THAT WOULD'VE FALLEN ON IT. THERE WAS NO CRACK WHEN LAST DRIVING THE VEHICLE. THE CRACK IS ABOUT A FOOT IN LENGTH AND STARTS AT THE TOP LEFT SIDE OF THE WINDSHIELD WHEN LOOKING AT IT. THIS HAPPENED WHILE…

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GOT INTO MY CAR TO GO TO WORK AND NOTICED THE WINDSHIELD WAS CRACKED. THERE WERE NO BRANCHES OR OTHER LARGE ITEMS NEAR THE CAR THAT WOULD'VE FALLEN ON IT. THERE WAS NO CRACK WHEN LAST DRIVING THE VEHICLE. THE CRACK IS ABOUT A FOOT IN LENGTH AND STARTS AT THE TOP LEFT SIDE OF THE WINDSHIELD WHEN LOOKING AT IT. THIS HAPPENED WHILE THE CAR WAS STATIONARY AND PARKED AT OUR RESIDENCE.

NHTSA ODI #11362383

66,052 miles · Sep 30, 2020
Visibility/wiper

WINDSHIELD CRACKED, WHILE THE CAR WAS PARKED. EPICENTER OF THE CRACK DOES NOT SHOW SIGNS OF IMPACT. APPEARS TO HAVE BEEN STRESS INDUCED. CRACK EXTENDS FROM THE TOP OF THE WINDSHIELD TO BELOW THE MIRROR.

NHTSA ODI #11361950

31,000 miles · Sep 27, 2020
Visibility/wiper

TWO SMALL CRACKS FORMED AT THE BASE OF THE WINDSHIELD (CAUSE UNKNOWN). ONE OF THOSE CRACKS HAS NOW SPREAD TO HALFWAY UP THE WINDSHIELD IN ONE DAY.

NHTSA ODI #11361383

4,500 miles · Sep 27, 2020
Visibility/wiper

BOUGHT THE 2017 SUBARU FORESTER EYESIGH BRAND NEW IN 2017. 2 WEEKS LATER FRONT WINDSHIELD CHIPPED AND CRACKED. GOT IT REPLACED. AND NOW ANOTHER CHIPPED. THIS IS CHEAP THIN POORLY MADE WINDSHIELD EVEN THE DEALER PARTS PERSON SAID SO. 1ST TIME......THIS IS ALL HAPPENED FREEWAY DRIVING. OUT OF NOWHERE. ALL I HEARD A DEBRIS…

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BOUGHT THE 2017 SUBARU FORESTER EYESIGH BRAND NEW IN 2017. 2 WEEKS LATER FRONT WINDSHIELD CHIPPED AND CRACKED. GOT IT REPLACED. AND NOW ANOTHER CHIPPED. THIS IS CHEAP THIN POORLY MADE WINDSHIELD EVEN THE DEALER PARTS PERSON SAID SO. 1ST TIME......THIS IS ALL HAPPENED FREEWAY DRIVING. OUT OF NOWHERE. ALL I HEARD A DEBRIS HIT THE WINDSHIELD GOT TO WORK PARKED. BY THE TIME I GET OFF WORK..... THERES A BIG LONG CRACKED ACROSS THE BOTTOM WINDSHIELD. AND 2ND TIME SAME THING HAPPENED WHILE GOING TO WORK. SAME THING HAPPENED. BUT THIS TIME I CALLED THE DEALERSHIP. TOLD THEM WHAT HAPPENED, AND I GOT THE WINDSHIELD REPLACEMENT WARRANTY. NO LUCK, TOLD ME THEY ONLY CAN DO REPAIR SMALLER THEN A QUARTER. SO I CALLED, THEY SAID ONLY CAN REPAIR NO REPLACEMENT. FILL IN THE CRACKED. SO. SO FAR. THIS GONNA BE MY 1ST AND LAST SUBARU. NOTHING BUT HEADACHE DEALING WITH THE DEALERS. WINDSHIELD REPLACNEMT IS NOT CHEAP. ITS ABOUT $$1200

NHTSA ODI #11361328

42,000 miles · Sep 4, 2020
Visibility/wiper

FRONT WINDSHIELD DEVELOPED HORIZONTAL CRACKS WHILE PARKED ON STREET AT OWNERS LOCATION. CRACK INCREASED IN LENGTH OVER A PERIOD OF TWO MONTHS. FAILURE BEGAN ON PASSENGER SIDE. FAILURE NOW EXTENDS NEARLY 50% INTO DRIVER SIDE. THERE IS NO INDICATION THAT FAILURE WAS CAUSED BY IMPACT FROM EITHER THE OUTSIDE OF WINDOW OR INSIDE OF W…

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FRONT WINDSHIELD DEVELOPED HORIZONTAL CRACKS WHILE PARKED ON STREET AT OWNERS LOCATION. CRACK INCREASED IN LENGTH OVER A PERIOD OF TWO MONTHS. FAILURE BEGAN ON PASSENGER SIDE. FAILURE NOW EXTENDS NEARLY 50% INTO DRIVER SIDE. THERE IS NO INDICATION THAT FAILURE WAS CAUSED BY IMPACT FROM EITHER THE OUTSIDE OF WINDOW OR INSIDE OF WINDOW.

NHTSA ODI #11353133

20,300 miles · Sep 2, 2020
Visibility/wiper

MY WINDSHIELD JUST CRACKED FOR NO APPARENT REASON, FOR THE THIRD TIME IN THE 4 YEARS I'VE OWNED THE CAR. THIS TIME, ON AUG 28, IT HAPPENED WHILE PARKED IN A GROCERY STORE PARKING LOT.

NHTSA ODI #11352835

20,000 miles · Aug 14, 2020
Unknown Or OtherVisibility/wiper

ORIGINAL OWNER OF 2017 SUBARU FORESTER WITH EYESIGHT. DRIVING ON OPEN ROAD IN CLEAR WEATHER. NOTICED A SMALL LINE ABOVE REGISTRATION STICKER THAT LOOKED LIKE A BLADE OF GRASS. STOPPED AT OUR DESTINATION AND NOTICED A CRACK THAT TRIPLED IN LENGTH IN THE 30 MINUTES IT SAT PARKED ACROSS THE LEFT LOWER SECTION OF THE WINDSHIELD. IT …

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ORIGINAL OWNER OF 2017 SUBARU FORESTER WITH EYESIGHT. DRIVING ON OPEN ROAD IN CLEAR WEATHER. NOTICED A SMALL LINE ABOVE REGISTRATION STICKER THAT LOOKED LIKE A BLADE OF GRASS. STOPPED AT OUR DESTINATION AND NOTICED A CRACK THAT TRIPLED IN LENGTH IN THE 30 MINUTES IT SAT PARKED ACROSS THE LEFT LOWER SECTION OF THE WINDSHIELD. IT PROCEEDED TO SPREAD OVER THE NEXT DAY. HAVE NEVER HAD A CHIP OR IMPACT TO THIS WINDSHIELD PREVIOUSLY, BUT IF THERE WAS ANY OBJECT THAT HIT THE CAR IT WAS INCREDIBLY SMALL AS THE CRACK IS ENTIRELY IN THE DRIVER'S EYELINE AND I DID NOT SEE OR HEAR ANYTHING.

NHTSA ODI #11349230

12,576 miles · Aug 11, 2020
Visibility/wiper

MY WINDSHIELD GOT A SPONTANEOUS CRACK WHILE DRIVING, NOT BEHIND ANY WORK TRUCKS, AND THEN AS THE DAYS GOT HOTTER, IT BEGAN TO SPIDER. I PAID FOR THE REPLACEMENT THROUGH SAFELIGHT IN MARCH 2018. I ALSO PAID FOR THE REQUIRED CALIBRATION FOR A TOTAL OF JUST OVER $642. ABOUT A WEEK LATER, I GOT ANOTHER CRACK IN THE WINDSHIELD FOR NO…

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MY WINDSHIELD GOT A SPONTANEOUS CRACK WHILE DRIVING, NOT BEHIND ANY WORK TRUCKS, AND THEN AS THE DAYS GOT HOTTER, IT BEGAN TO SPIDER. I PAID FOR THE REPLACEMENT THROUGH SAFELIGHT IN MARCH 2018. I ALSO PAID FOR THE REQUIRED CALIBRATION FOR A TOTAL OF JUST OVER $642. ABOUT A WEEK LATER, I GOT ANOTHER CRACK IN THE WINDSHIELD FOR NO APPARENT REASON. I PUT SEALANT INTO IT AND IT IS STARTING TO SPREAD. THE SECOND TIME THE CAR WAS PARKED IN MY DRIVEWAY WHICH IS IN A QUIET RESIDENTIAL NEIGHBORHOOD WITH NO CONSTRUCTION.

NHTSA ODI #11348661

43,300 miles · Jun 26, 2020
Visibility/wiper

I JUST PURCHASED MY 2017 SUBARU FORESTER ON 6/13/20 AND WHILE DRIVING ON THE HIGHWAY ON 6/25/20 THE WINDSHIELD WAS HIT BY A SMALL ROCK FROM A SEMI TRUCK IN FRONT OF ME. I DID NOT SEE ANY VISIBLE DAMAGE AT THE TIME BUT THE NEXT DAY A VERY LARGE CRACK APPEARED ON MY WINDSHIELD ALMOST A FOOT AND A HALF LONG. IN SPEAKING WITH OTHER …

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I JUST PURCHASED MY 2017 SUBARU FORESTER ON 6/13/20 AND WHILE DRIVING ON THE HIGHWAY ON 6/25/20 THE WINDSHIELD WAS HIT BY A SMALL ROCK FROM A SEMI TRUCK IN FRONT OF ME. I DID NOT SEE ANY VISIBLE DAMAGE AT THE TIME BUT THE NEXT DAY A VERY LARGE CRACK APPEARED ON MY WINDSHIELD ALMOST A FOOT AND A HALF LONG. IN SPEAKING WITH OTHER SUBARU OWNERS I HAD NOT REALIZED WHAT A MASSIVE AND WELL KNOWN ISSUE THIS IS FOR SUBARU WINDSHIELDS. I'VE NEVER SEEN THIS TYPE OF DAMAGE OCCUR THIS INSTANTLY ON A WINDSHIELD FROM SUCH A MINOR IMPACT. *TR

NHTSA ODI #11331112

5,000 miles · Jun 22, 2020
Visibility/wiper

WHILE DRIVING MY 2017 SUBARU FORESTER IN JULY 2017 ON M22 LOCATED IN MICHIGAN MY WINDSHIELD BEGAN CRACKING. *TR

NHTSA ODI #11330212

Official recalls

1

19V701000 · 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

1

PE19009 · 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.

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