IllustrationMy drivers side seatbelt broke in a minor fender bender and was replaced.
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
Seat Belts complaints
10 reportsPassenger front seat. Airbag light is on when someone is sitting in the seat and seatbelt indicator dings when nothing is in the seat.
THE ODS is not properly determining the status of the right front seat occupant. The airbag warning light is illuminated, and the front passenger airbag is deactivated even with a person sitting in the passenger seat. The ODS is also unable to determine if someone is in the seat and triggers the seatbelt alert when anything (ev…
Read full complaint
THE ODS is not properly determining the status of the right front seat occupant. The airbag warning light is illuminated, and the front passenger airbag is deactivated even with a person sitting in the passenger seat. The ODS is also unable to determine if someone is in the seat and triggers the seatbelt alert when anything (even a purse) is on the seat. This exact issue was part of a Subaru recall WUM-98R, for 2015-2018 Subaru Foresters produced between January 20, 2015 – August 01, 2017. Subaru is claiming my vehicle doesn't qualify as it was not part of the recall even though I having the same issues as the recall and I own a 2018 Subaru Forester. Furthermore, as listed in the recall if a vehicle is part of the recall and is brought in for inspection "The part identification label affixed to the yellow sensor mat wiring harness is the focus of this inspection. If the date code is 18074 or BEFORE AND has the supplier code 6578 (RED box in photo) on it, the harness is NG must be replaced. Proceed to Harness Replacement Procedure as outlined below." The date code on my label is before 18074 and the supplier code is 6578. I am asking for your assistance in holding Subaru accountable to add my vehicle to the recall.
The sensor in the seat has been intermittently working for years and finally quit. It costs close to $2000 to fix and there is no way to switch the air bag to stay on. It seems this is an issue with other 2018 Subaru foresters and for some reason the recall did not apply to my VIN.
Not sure why my car is not being recalled for occupant detection harness. Subaru telling me it’s the vin number, that’s not the problem it’s I have a defective harness according to Subaru product bulletin wud-98r harness with date prior to 18074 is defective and needs to be replaced free of charge. My harness has a date of 17293…
Read full complaint
Not sure why my car is not being recalled for occupant detection harness. Subaru telling me it’s the vin number, that’s not the problem it’s I have a defective harness according to Subaru product bulletin wud-98r harness with date prior to 18074 is defective and needs to be replaced free of charge. My harness has a date of 17293. My car has all the criteria of the recall. This started back in April 2020 with warning light on and off same with airbag indicator. Now the warning light is on constantly and airbag is off constantly
The contact's mother owns a 2018 Subaru Forester. The contact stated that the front passenger's side seat belt warning light failed to illuminate and alert the passenger to fasten the seat belt. The air bag warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the front passenger's side …
Read full complaint
The contact's mother owns a 2018 Subaru Forester. The contact stated that the front passenger's side seat belt warning light failed to illuminate and alert the passenger to fasten the seat belt. The air bag warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the front passenger's side seat and sensor needed to be replaced. The vehicle was not yet repaired. The manufacturer was made aware of the failure and confirmed that a credit towards the repair would be provided. The failure mileage was approximately 23,000.
TL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE FAILED TO ACCELERATE. THE AIR BAG SYSTEM WAS DEACTIVATED. THE SEAT BELT ALERT WAS ACTIVATED. THE VEHICLE WAS TAKEN TO SUBARU OF KENNESAW (905 ERNEST W BARRETT PKWY NW, KENNESAW, GA 30144) HOWEVER, THE MECHANIC WAS UNABLE …
Read full complaint
TL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE FAILED TO ACCELERATE. THE AIR BAG SYSTEM WAS DEACTIVATED. THE SEAT BELT ALERT WAS ACTIVATED. THE VEHICLE WAS TAKEN TO SUBARU OF KENNESAW (905 ERNEST W BARRETT PKWY NW, KENNESAW, GA 30144) HOWEVER, THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS LATER DIAGNOSED AND THE CONTACT WAS INFORMED THAT THERE WAS A WIRING HARNESS CONNECTION FAILURE, BRAKE PEDAL SENSOR AND THAT THE SEAT BOTTOM NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE CONTACT STATED THAT SHE FELT UNSAFE OPERATING THE VEHICLE AND REQUESTED THAT THE MANUFACTURER BUY BACK THE VEHICLE. THE FAILURE MILEAGE WAS UNKNOWN.
FRONT PASSENGER SEAT AIRBAG SENSOR BEGAN NOT RECOGNIZING PASSENGERS SITTING IN THE SEAT SHORTLY AFTER PURCHASING MY BRAND NEW 2018 SUBARU FORESTER. THIS STARTED OCCURING WHILE DRIVING, TURNING OFF AND ON. AFTER A WHILE, IT COMPLETELY STOPPED RECOGNIZING ANY PERSON SITTING IN THE SEAT EVEN AFTER ONLY JUST TURNING THE CAR ON. THE …
Read full complaint
FRONT PASSENGER SEAT AIRBAG SENSOR BEGAN NOT RECOGNIZING PASSENGERS SITTING IN THE SEAT SHORTLY AFTER PURCHASING MY BRAND NEW 2018 SUBARU FORESTER. THIS STARTED OCCURING WHILE DRIVING, TURNING OFF AND ON. AFTER A WHILE, IT COMPLETELY STOPPED RECOGNIZING ANY PERSON SITTING IN THE SEAT EVEN AFTER ONLY JUST TURNING THE CAR ON. THE DEALERSHIP REPLACED IT SINCE IT WAS IN THE WARRANTY PERIOD BUT BLAMED US FOR IT MALFUNCTIONING SAYING THAT WE MUST HAVE GOTTEN THE SEAT WET, CAUSING THE SENSOR TO FAIL. WE TOLD THEM THAT WE HADN'T EVER GOTTEN THE SEAT WET. ONE YEAR AND 3 MONTHS AFTER WE'D GOTTEN OUR FORESTER BACK FROM THE DEALERSHIP AFTER THE AIRBAG SENSOR REPAIR, A PASSENGER THAT SAT IN THE SEAT BROUGHT TO OUR ATTENTION THE FACT THAT THE PART OF THE SEATBELT THAT SITS TO THE LEFT OF THE FRONT PASSENGER SEAT WAS LOOSE. WE TOOK IT TO THE SAME DEALERSHIP AGAIN AND THEY TOLD US THAT THE TECHNICIAN HAD REINSTALLED THE SEAT BELT INCORRECTLY AFTER THE AIRBAG SENSOR REPAIR AND THAT IT WAS MISSING A PART AND THAT'S WHY IT WAS LOOSE AND NOT ANCHORED PROPERLY. THEY WERE ORDERING THE PART AND IT WOULD ARRIVE WITHIN A WEEK. WHEN WE RETURNED A WEEK LATER THEY INFORMED US THAT THEY ORDERED THE WRONG PART AND NOW WE'D HAVE TO WAIT ANOTHER WEEK FOR THE SEAT BELT TO BE ANCHORED PROPERLY. STILL WAITING FOR THE CORRECT PART TO ARRIVE FOR THE SEAT BELT TO BE ANCHORED PROPERLY.
THE EYESIGHT HAD BEEN MANIPULATED TO A WARNING EVEN WHEN THERE'S NO OBSTRUCTION WHILE DRIVING FORWARD, WHILE BACKING UP IT GIVES A WARNING THAT SOMEONE OR A VEHICLE IS ADJACENT TO MY CAR. THESE ARE JUST A FEW OF THE PROBLEMS I ENCOUNTER. I HAVE AN IDEA WHO'S BEHIND THIS. BUT I CANNOT PROVE IT. SOMEONE VERY KNOWLEDGEABLE IN CO…
Read full complaint
THE EYESIGHT HAD BEEN MANIPULATED TO A WARNING EVEN WHEN THERE'S NO OBSTRUCTION WHILE DRIVING FORWARD, WHILE BACKING UP IT GIVES A WARNING THAT SOMEONE OR A VEHICLE IS ADJACENT TO MY CAR. THESE ARE JUST A FEW OF THE PROBLEMS I ENCOUNTER. I HAVE AN IDEA WHO'S BEHIND THIS. BUT I CANNOT PROVE IT. SOMEONE VERY KNOWLEDGEABLE IN COMPUTER SECURITY WITHIN MY VICINITY. IT COMPROMISES THE SAFETY FEATURE OF THE CAR WHILE DRIVING AND EVEN BACKING UP IN MY GARAGE.
SEAT WARNING BUZZE WHEN THE DRIVER OR THE PASSENGER SEAT BELT IS NOT FASTENED THE BUZZER SOUNDS FOR APPROXIMATELY 8 SECONDS. HOWEVER, AFTER THIS INTERVAL, IF EITHER BELT IS STILL UNFASTENED BUZZER CONTINUES TO CHIME IN EVER INCREASING VOLUME. THE MANUAL STATES THAT THIS DISTURBING SECOND CHIME CAN BE DISABLED BY A SUBARU DEAL…
Read full complaint
SEAT WARNING BUZZE WHEN THE DRIVER OR THE PASSENGER SEAT BELT IS NOT FASTENED THE BUZZER SOUNDS FOR APPROXIMATELY 8 SECONDS. HOWEVER, AFTER THIS INTERVAL, IF EITHER BELT IS STILL UNFASTENED BUZZER CONTINUES TO CHIME IN EVER INCREASING VOLUME. THE MANUAL STATES THAT THIS DISTURBING SECOND CHIME CAN BE DISABLED BY A SUBARU DEALER. I WENT TO TWO DEALERS ON FOUR DIFFERENT OCCASIONS AND THEY REFUSED TO COMPLY. I CALLED SUBARU AND I WAS ADVISED THAT THE COMPANY HAS NO CONTROL OVER THE ACTIONS OF THEIR DEALERS WHO ARE INDEPENDENT ENTITIES. REFER TO PAGE 3-14 OF THE OWNER'S MANUAL. I WANT TO DISCONNECT THIS FEATURE AS IT IS A HAZARD TO SAFE DRIVING.
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.