IllustrationTHE WINDSHIELD DEVELOPED A CRACK WHILE I WAS SITTING IN A PARKING LOT. IT EMANATES FROM RIGHT ABOVE THE DRIVER SIDE WINDSHIELD WIPER. THERE IS NO EVIDENCE OF ROCK STRIKE.
2018 Subaru Forester
Owner reports · Recalls · Investigations
More warning signs than most Forester years
Owner complaints for the 2018 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
1560–25K
6525–50K
1350–75K
575–100K
2100–150K
0150K+
241 reports with mileage · 252 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.
- Visibility/wiper. Review the 135 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 96 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 70 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
26 crash reports1 fire reports6 injury reports
Visibility/wiper complaints
135 reportsI JOIN COMPLAINANTS WITH A SUBARU WINDSHIELD CRACK. A CRACK MYSTERIOUSLY STARTED AT THE BASE OF MY WINDSHIELD ON THE PASSENGER SIDE. I DON'T RECALL ANYTHING HITTING IT, AND THERE'S NO SIGN OF ANY IMPACT (DING, CHIP, NOTHING!). I CAN'T DETERMINE WHERE OR HOW IT MAY HAVE STARTED (CRACK RUNS TO BASE OF WINDSHIELD). SINCE APPEARIN…
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I JOIN COMPLAINANTS WITH A SUBARU WINDSHIELD CRACK. A CRACK MYSTERIOUSLY STARTED AT THE BASE OF MY WINDSHIELD ON THE PASSENGER SIDE. I DON'T RECALL ANYTHING HITTING IT, AND THERE'S NO SIGN OF ANY IMPACT (DING, CHIP, NOTHING!). I CAN'T DETERMINE WHERE OR HOW IT MAY HAVE STARTED (CRACK RUNS TO BASE OF WINDSHIELD). SINCE APPEARING, IT'S GROWN ABOUT HALFWAY UP, AND NOW HALFWAY ACROSS THE WINDSHIELD. I UNDERSTAND FROM A NEWS ARTICLE A CLASS ACTION SUIT IS PENDING WHICH INCLUDES A VAST NUMBER OF SUBARU VEHICLES - MULTIPLE MODELS & YEARS - EXPERIENCING WINDSHIELD CRACKS. MY MODEL AND YEAR IS INCLUDED IN THE CLASS. I FILE MY COMPLAINT AS A RESULT OF FINDING THE NEWS STORY, WHICH SUGGESTS A COMPLAINT BE FILED.
DRIVING IN A HIGHWAY AT AROUND 45-50 MPH, HEARD A SOUND, AND WINDSHIELD WAS CRACKED FOR MORE THAN 12 INCHES LONG.
SPONTANEOUS CRACK IN WINDSHIELD. BEGAN AS SMALL CRACK CENTER OF WINDSHIELD ON PASSENGER SIDE. SPREAD TO THE LEFT. NO APPARENT DAMAGE AT START OF CRACK..CRACK INITIALLY VERY SMALL AND NOTICED BY PASSENGER WHILE DRIVING.
WHILE DRIVING MY 2018 SUBARU FORESTER ON A HIGHWAY AT 70 MPH, AN 11.5" CRACK APPEARED IN THE WINDSHIELD WITH NO APPARENT CAUSE OF THE DAMAGE. THE CRACK EXTENDS FROM THE EDGE OF THE GLASS HORIZONTALLY. CLOSE INSPECTION REVEALED A CHIP ABOUT 3/8" FROM THE EDGE OF THE WINDSHIELD MEASURING NO WIDER THAN 1/16". GIVEN THE IMMEDIACY AN…
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WHILE DRIVING MY 2018 SUBARU FORESTER ON A HIGHWAY AT 70 MPH, AN 11.5" CRACK APPEARED IN THE WINDSHIELD WITH NO APPARENT CAUSE OF THE DAMAGE. THE CRACK EXTENDS FROM THE EDGE OF THE GLASS HORIZONTALLY. CLOSE INSPECTION REVEALED A CHIP ABOUT 3/8" FROM THE EDGE OF THE WINDSHIELD MEASURING NO WIDER THAN 1/16". GIVEN THE IMMEDIACY AND THE EXTENT OF THE DAMAGE, I BELIEVE THIS IS A SIGN OF DEFECTIVE WINDSHIELD MATERIAL. I AM ALSO CONCERNED THAT THIS CRACK WILL GROW VERY QUICKLY BEFORE I AM ABLE TO GET IT REPAIRED.
THE WINDSHIELD CRACKED AS I WAS DRIVING DOWN A STREET. NOTHING HIT IT. THERE WERE NO OTHER CARS NEAR ME. THE CRACK STARTED AT THE OUTER EDGE OF THE WINDSHIELD.
OUR 2018 SUBARU FORESTER HAS BEEN SITTING IN OUR DRIVEWAY EVERY DAY SINCE MARCH 2020 WHEN THE COVID CRISIS KEPT US HOUSEBOUND. WE MAKE A FEW SHORT TRIPS AROUND TOWN PER WEEK. JUST TODAY (JULY 28, 2020) MY WIFE NOTICED A BIG CRACK IN THE LOWER WINDSHIELD ON THE PASSENGER SIDE. THEN SHE NOTICED THE SAME TYPE OF CRACK IN THE MOONRO…
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OUR 2018 SUBARU FORESTER HAS BEEN SITTING IN OUR DRIVEWAY EVERY DAY SINCE MARCH 2020 WHEN THE COVID CRISIS KEPT US HOUSEBOUND. WE MAKE A FEW SHORT TRIPS AROUND TOWN PER WEEK. JUST TODAY (JULY 28, 2020) MY WIFE NOTICED A BIG CRACK IN THE LOWER WINDSHIELD ON THE PASSENGER SIDE. THEN SHE NOTICED THE SAME TYPE OF CRACK IN THE MOONROOF GLASS. WE HAVE BARELY BEEN DRIVING THE CAR AND WOULD CERTAINLY HAVE NOTICED IF A PEBBLE OR OTHER DEBRIS HIT THE WINDSHIELD AND MOONROOF SO HARD THAT THE TWO CRACKS DEVELOPED. (ALSO THERE'S NO CHANCE THAT A TREE FELL ON IT AND WE SIMPLY FAILED TO NOTICE.) WE WERE ABOUT TO TAKE THE CAR ON A 9-HOUR ROAD TRIP IN TWO DAYS BUT ARE CONCERNED THAT FURTHER DAMAGE WILL OCCUR AND WE WILL BE STRANDED. VERY DISAPPOINTING.
WHILE DRIVING I HEARD A VERY LOUD BANG AND IMMEDIATELY SAW THE WINDSHIELD WAS CRACKED. THERE WAS NO TRAFFIC OR VEHICLES IN FRONT OF ME ON THE LOCAL HIGHWAY TRAVELING AT 55 MPH. THE BANG STARTLED ME SO BAD I STARTED TO SWERVE INTO THE OTHER LANE. WHEN I REACHED MY DESTINATION I WAS SURPRISED TO SEE HOW LONG THE CRACK EXTENDED. I…
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WHILE DRIVING I HEARD A VERY LOUD BANG AND IMMEDIATELY SAW THE WINDSHIELD WAS CRACKED. THERE WAS NO TRAFFIC OR VEHICLES IN FRONT OF ME ON THE LOCAL HIGHWAY TRAVELING AT 55 MPH. THE BANG STARTLED ME SO BAD I STARTED TO SWERVE INTO THE OTHER LANE. WHEN I REACHED MY DESTINATION I WAS SURPRISED TO SEE HOW LONG THE CRACK EXTENDED. I TOOK THE CAMERA OFF THE WINDSHIELD TO GET PICTURES OF THE FULL EXTENT OF THE CRACK.
HAVE HAD TO REPLACE WINDSHIELD FULL REPLACEMENTS 3 TIMES IN 2 1/2 YEARS. USUALLY A SMALL ROCK KICKED UP FROM HIGHWAY STARTS THE CHIP AND IT SPREADS VERY QUICKLY. I HAVE HAD CHIP FILLED BUT IT STILL CRACKS ACROSS THE WINDSHIELD SO THE WHOLE WINDSHIELD HAS TO BE REPLACED AGAIN.
WINDSHIELD CRACKED DUE TO EXCESSIVE HEAT. CAR WAS SITTING IN DRIVEWAY WHEN I CAM OUT IN THE MORNING A LARGE CRACK FROM THE PASSENGER SIDE NEAR THE BODY WENT ACROSS TO THE CENTER OF THE VEHICLE MY THE REAR VIEW MIRROR
Official recalls
321V587000 · Fuel System, Gasoline:delivery:fuel Pump
Jul 29, 2021
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2018 Forester, 2018-2020 Impreza, Legacy, Outback, 2018-2019 BRZ, WRX, and Toyota 86 vehicles. The low-pressure fuel pump inside the fuel tank may fail.
Consequence & remedy
Consequence: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Remedy: Dealers will replace the low-pressure fuel pump, free of charge. Owner notification letters were mailed September 24, 2021. Subaru and Toyota owners may call customer service at 1-844-373-6614. Subaru's number for this recall is WRG-21.
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.
18V455000 · Equipment:other:labels; Tires
Jul 10, 2018
Subaru of America, Inc. (Subaru) is recalling certain 2018 Subaru Forester vehicles. The Certification Label may indicate the incorrect wheel size, tire size, and air pressure. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims."
Consequence & remedy
Consequence: Installing incorrect tires or applying incorrect tire air pressure may increase the risk of a crash.
Remedy: Subaru will notify owners, and dealers will install a corrected label, free of charge. The recall began July 26, 2018. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WTS-78.
Additional source detail variants (2)
Equipment:other:labels
Subaru of America, Inc. (Subaru) is recalling certain 2018 Subaru Forester vehicles. The Certification Label may indicate the incorrect wheel size, tire size, and air pressure. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims."
Consequence: Installing incorrect tires or applying incorrect tire air pressure may increase the risk of a crash.
Remedy: Subaru will notify owners, and dealers will install a corrected label, free of charge. The recall began July 26, 2018. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WTS-78.
Tires
Subaru of America, Inc. (Subaru) is recalling certain 2018 Subaru Forester vehicles. The Certification Label may indicate the incorrect wheel size, tire size, and air pressure. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims."
Consequence: Installing incorrect tires or applying incorrect tire air pressure may increase the risk of a crash.
Remedy: Subaru will notify owners, and dealers will install a corrected label, free of charge. The recall began July 26, 2018. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WTS-78.
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.