IllustrationTHERE IS A PROBLEM WITH THE ENGINE AND THE FUEL FEED. THE ENGINE WILL BUCK, MUCH LIKE A BACKFIRE AND FAIL TO ACCELERATE. THIS PROBLEM HAS BEEN ON-GOING SINCE WE PURCHASED THE VEHICLE. THE DATE OF THE EVENT IS AN APPROXIMATION BUT IT HAS BEEN ON-GOING SINCE WE PURCHASED THE CAR.
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
What owners actually said
586 reportsMY 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.
AFTER 20K MILES, TRANSMISSION HESITATES MORE AND MORE. BE CAREFUL AND TRY TO AVOID SITUATIONS WHERE YOU HAVE TO ACCELERATE QUICKLY. THE CAR DOES NOT MOVE OR ACCELERATE WHEN YOU HIT THE GAS PEDAL QUICKLY. CVT SLIPS, ESPECIALLY FROM REVERSE TO DRIVE. AT SLOW SPEEDS, IT JERKS THE CAR TRYING TO FIND THE RIGHT GEAR. THE PROBLEM BEGAN…
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AFTER 20K MILES, TRANSMISSION HESITATES MORE AND MORE. BE CAREFUL AND TRY TO AVOID SITUATIONS WHERE YOU HAVE TO ACCELERATE QUICKLY. THE CAR DOES NOT MOVE OR ACCELERATE WHEN YOU HIT THE GAS PEDAL QUICKLY. CVT SLIPS, ESPECIALLY FROM REVERSE TO DRIVE. AT SLOW SPEEDS, IT JERKS THE CAR TRYING TO FIND THE RIGHT GEAR. THE PROBLEM BEGAN UNDER 10K MILES, AND I TOOK IT TO A LOCAL DEALERSHIP, THEY TOLD ME THAT IS HOW THE CAR DRIVES AND TOLD ME IT IS NORMAL. THIS IS NOT MY FIRST FORESTER, BUT DEFINITELY THE WORST. I CALLED SUBARU AMERICA, AND THEY SAID THERE IS NO KNOWN PROBLEM WHIT THEIR TRANSMISSION. I ALMOST GOT KILLED IN A HIGHWAY STOP AND GO SITUATION, WHERE I HAD TO ACCELERATE AFTER A SLOWDOWN, AND THE CAR DECIDED NOT TO. IF YOU OWN ONE, BE CAREFUL.
MY FIANC AND I BOUGHT THIS CAR AND WE WERE TOLD IT WAS NOT AN ACCIDENT, AFTER WE PURCHASED IT WE FOUND OUT THAT IT HAD BEEN IN 2 ACCIDENTS AND DURING DRIVING 1 NIGHT IT BUCKED REAL HARD AND WOULD NOW ACCELERATE AND IT SCARED BOTH OF US. SO THE NEXT DAY I TOOK IT TO CENTER SUBARU IN TORRINGTON CONNECTICUT TO GET IT INSPECTED, DUR…
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MY FIANC AND I BOUGHT THIS CAR AND WE WERE TOLD IT WAS NOT AN ACCIDENT, AFTER WE PURCHASED IT WE FOUND OUT THAT IT HAD BEEN IN 2 ACCIDENTS AND DURING DRIVING 1 NIGHT IT BUCKED REAL HARD AND WOULD NOW ACCELERATE AND IT SCARED BOTH OF US. SO THE NEXT DAY I TOOK IT TO CENTER SUBARU IN TORRINGTON CONNECTICUT TO GET IT INSPECTED, DURING THE TRIP TO THE DEALER IT HAD BUCKED THREE MORE TIMES VIOLENTLY. I TOLD THEM ABOUT IT AND THEY COULD NOT FIND ANY CODES IN THE SYSTEM, I SPOKE WITH THE MECHANIC LATER AND HE SAID IF IT DOESN'T THROW TROUBLE CODES IT HAS SERIOUS ISSUES IN THE COMPUTER. I EXPLAINED THAT IT WAS IN A TWO ACCIDENTS AND HE GOES I WOULD EXPLAIN A LOT, HIS OFF THE BOOKS RECOMMENDATION TO ME WAS GET RID OF THE VEHICLE AND FIND SOMETHING ELSE. I TOLD HIM I BOUGHT IT FROM A BETTER WAY WHOLESALE AUTOS IN NAUGATUCK CONNECTICUT AND HE SAID TO CONTACT YOU. I WANT THIS CAR FLAGGED SO WHEN WE TURN IT BACK IN SOMEONE ELSE DOES NOT COME ACROSS IT THE SAME WAY WE DID, I KNOW THE DEALERSHIP WILL PUT THIS ARE BACK OUT FOR SALE AND NOT TELL ANYONE.
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.
TL* THE CONTACT OWNS A 2017 SUBARU FORESTER. THE CONTACT STATED THAT WHILE THE TRANSMISSION WAS IN THE PARK POSITION, THE IGNITION KEY WAS UNABLE TO BE REMOVED FROM THE IGNITION SWITCH. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER SUBARU OF MELBOURNE LOCATED AT 4340 WEST NEW HAVEN AVE MELBOURNE FL 32904, WHO DIAGNOSED THAT THE PARK…
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TL* THE CONTACT OWNS A 2017 SUBARU FORESTER. THE CONTACT STATED THAT WHILE THE TRANSMISSION WAS IN THE PARK POSITION, THE IGNITION KEY WAS UNABLE TO BE REMOVED FROM THE IGNITION SWITCH. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER SUBARU OF MELBOURNE LOCATED AT 4340 WEST NEW HAVEN AVE MELBOURNE FL 32904, WHO DIAGNOSED THAT THE PARK RANGE SWITCH WAS DEFECTIVE INSIDE THE GEAR SELECT LEVER ASSEMBLY. THE VEHICLE WAS NOT YET REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE BUT, NO ASSISTANCE WAS OFFERED. THE FAILURE MILEAGE WAS 26,000.
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.
KEY REMAINS IN IGNITION AND WILL NOT DISENGAGE FROM IGNITION WITH RADIO AND ALL DASH LIGHTS STILL ON. IT HAS HAPPENED 12 TIMES SINCE PURCHASED IN THE MIDDLE OF JUNE. THE CAR WAS PARKED MOVED SEVERAL , TURNED ON AND OFF WITH NO RESULT . CAR WAS IN PARK AT ALL TIMES. AFTER SEVERAL TIMES OF MOVING CAR , TURNING ON AND OFF SEVERAL …
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KEY REMAINS IN IGNITION AND WILL NOT DISENGAGE FROM IGNITION WITH RADIO AND ALL DASH LIGHTS STILL ON. IT HAS HAPPENED 12 TIMES SINCE PURCHASED IN THE MIDDLE OF JUNE. THE CAR WAS PARKED MOVED SEVERAL , TURNED ON AND OFF WITH NO RESULT . CAR WAS IN PARK AT ALL TIMES. AFTER SEVERAL TIMES OF MOVING CAR , TURNING ON AND OFF SEVERAL KEY FINALLY RELASED
I AM LOCATING IN VILSECK, GERMANY ON DOD US ARMY MILITARY OFFICIAL ORDER FROM MAY 2018 TO PRESENT. NOW! I AM SCHEDULE TO PCS FROM GERMANY BACK TO SAN ANTONIO, TEXAS. WITH THIS RECALL I WILL HAVE PROBLEM OF SHIPPING MY CAR BACK HOME AND I CAN'T GET IT FIX DUE TO SUBARU, GERMANY IS NOT AVAILABLE TO GET IT DONE DUE TO LACKS OF SERV…
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I AM LOCATING IN VILSECK, GERMANY ON DOD US ARMY MILITARY OFFICIAL ORDER FROM MAY 2018 TO PRESENT. NOW! I AM SCHEDULE TO PCS FROM GERMANY BACK TO SAN ANTONIO, TEXAS. WITH THIS RECALL I WILL HAVE PROBLEM OF SHIPPING MY CAR BACK HOME AND I CAN'T GET IT FIX DUE TO SUBARU, GERMANY IS NOT AVAILABLE TO GET IT DONE DUE TO LACKS OF SERVICE CONTACT WITH SUBARU USA.
WHEN SHIFTING VEHICLE FROM REVERSE TO PARK, THEN TURNING VEHICLE OFF, THE KEY CANNOT BE FULLY TAKEN OUT OF THE CAR. THE ONLY WAY TO GET IT OUT IS TO RESTART THE VEHICLE, TAKE IT OUT OF PARK AND SLAM IT BACK INTO PARK. SUPPOSEDLY A SWITCH WITHIN THE SHIFTER THAT PREVENTS A SOLENOID IN THE STEERING COLUMN FROM OPENING. THIS IS …
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WHEN SHIFTING VEHICLE FROM REVERSE TO PARK, THEN TURNING VEHICLE OFF, THE KEY CANNOT BE FULLY TAKEN OUT OF THE CAR. THE ONLY WAY TO GET IT OUT IS TO RESTART THE VEHICLE, TAKE IT OUT OF PARK AND SLAM IT BACK INTO PARK. SUPPOSEDLY A SWITCH WITHIN THE SHIFTER THAT PREVENTS A SOLENOID IN THE STEERING COLUMN FROM OPENING. THIS IS ALL COVERED ON TSB 16-112-18 AND THERE ARE A LOT OF PEOPLE COMPLAINING ABOUT THE ISSUE ONLINE.
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.