Illustration12/11/19 2PM DRIVING AT 55MPH SOUTH ON ROUTE 321 BETWEEN KANE, PA AND WILCOX, PA. NO ONCOMING TRAFFIC, NO STONE CHIPS. NOTICED 6" L SHAPED CRACK IN WINDSHIELD. DEFROSTER WAS ON. NEXT MORNING THE CRACK WAS ABOUT 14" AND GROWING.
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 reportsSINCE I HAVE BOUGHT THE CAR I'VE BEEN HAVING ELECTRICAL ISSUES WITH IT IT'S ALWAYS SAYING THAT A KEY IS NOT DETECTED EVEN THOUGH THE KEYS RIGHT NEXT TO IT OR UNDERNEATH THAT THEY ALREADY HAS BEEN A TRANSMISSION LEAKAGE ALSO THE BALANCE OF THE CAR HAS BEEN OFF-BALANCE SO I HAD TO TAKE IT BACK TO THEM WHEN THE AIR CONDITIONER WAS …
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SINCE I HAVE BOUGHT THE CAR I'VE BEEN HAVING ELECTRICAL ISSUES WITH IT IT'S ALWAYS SAYING THAT A KEY IS NOT DETECTED EVEN THOUGH THE KEYS RIGHT NEXT TO IT OR UNDERNEATH THAT THEY ALREADY HAS BEEN A TRANSMISSION LEAKAGE ALSO THE BALANCE OF THE CAR HAS BEEN OFF-BALANCE SO I HAD TO TAKE IT BACK TO THEM WHEN THE AIR CONDITIONER WAS ON WHEN IT WAS SUMMER IS THERE MAKING A WEIRD NOISE I RECORDED THE NOISE I SHOWED IT TO THE DEALER AND THEY SAID THAT THEY COULDN'T FIND ANYTHING WRONG WITH THAT EVEN THOUGH I HAVE PROOF THAT THERE WAS SOMETHING WRONG WITH IT BUT I JUST DIDN'T KNOW WHERE WAS COMING FROM ALSOALSO A LITTLE CRACK ON THE WINDSHIELD RANDOMLY CAME OUT LIKE ABOUT THREE WEEKS AGO AND NEVER HAD AN ISSUE WITH THAT UNTIL NOW AND WHEN I START OUT MY CAR AND I HAD TO DO IT AT THE FIRST BREAK AT A STOP SIGN MY CAR STARTED SHAKING AND THEN IT STOPPED SHAKING AND THEN THAT'S THE ONLY TIME DOES THE SHAKINESS I'VE HAD SO MANY ISSUES WITH THIS FORRESTER 2017 THEY TRY TO FIX IT ISSUES BUT WHEN THEY FIX IT SOMETHING NEW ALWAYS COMES UP.
THE WINDSHIELD CRACKED ALONG THE TOP CENTER WITHOUT ANY EVIDENCE OF BEING HIT BY ANYTHING. THE SUBARU DEALER ARRANGED FOR A THIRD PARTY TO REPLACE THE WINDSHIELD AT MY EXPENSE AND THEN CHARGED ME $360 TO READJUST THE SAFETY VISION THROUGH THE NEW WINDSHIELD. THIS WAS DONE THROUGH MY INSURANCE WHICH CAUSED MY INSURANCE TO GO UP.…
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THE WINDSHIELD CRACKED ALONG THE TOP CENTER WITHOUT ANY EVIDENCE OF BEING HIT BY ANYTHING. THE SUBARU DEALER ARRANGED FOR A THIRD PARTY TO REPLACE THE WINDSHIELD AT MY EXPENSE AND THEN CHARGED ME $360 TO READJUST THE SAFETY VISION THROUGH THE NEW WINDSHIELD. THIS WAS DONE THROUGH MY INSURANCE WHICH CAUSED MY INSURANCE TO GO UP. AT NO TIME DID ANYONE TELL ME THAT THERE HAVE BEEN MULTIPLE COMPLAINTS OF THESE WINDSHIELDS BREAKING SPONTANEOUSLY BECAUSE THEY ARE DEFECTIVE. I HAVE THE SERVICE INVOICE FROM 16 APRIL 2019.
WINDSHIELD HAD CRACKS DEVELOP TWICE OVER THE COURSE OF OWNERSHIP
MY CAR STOLE IN THE MIDDLE OFF HIGHWAY ON A VERY BUSY TRAFFIC TIME,, I CAN HEAR THE ENGINE BUT THE CAR DID NOT MOVE, FINALLY IT MOVED VERY SLOWLY AND STOP AGAIN, I ALMOST GOT HIT MANY TIMES SINCE VEHICLES WERE SPEEDING OVER 65MILES AND NO ONE WILL ALLOW ME TO MOVE TO THE SHOULDER, FINALLY AFTER 10 MINUTES THE CAR ENGINE ACCELER…
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MY CAR STOLE IN THE MIDDLE OFF HIGHWAY ON A VERY BUSY TRAFFIC TIME,, I CAN HEAR THE ENGINE BUT THE CAR DID NOT MOVE, FINALLY IT MOVED VERY SLOWLY AND STOP AGAIN, I ALMOST GOT HIT MANY TIMES SINCE VEHICLES WERE SPEEDING OVER 65MILES AND NO ONE WILL ALLOW ME TO MOVE TO THE SHOULDER, FINALLY AFTER 10 MINUTES THE CAR ENGINE ACCELERATED AND I WAS ABLE TO DRIVE AWAY, VERY SCARY SITUACIN
ON A LONG TRIPS (200 MILES OF INTERSTATE DRIVING) THE CAR LOSES IT'S ABILITY TO MAINTAIN HIGHWAY SPEED. THE ACCELERATOR PEDDLE DOES NOT WORK AND VEHICLE SLOWS DOWN TO IDLE. YOU HAVE TO PULL OFF THE ROAD AND STOP. PUT THE CAR IN PARK AND THEN BACK IN TO DRIVE. IT WORKS AFTER THAT. DURING THE FAILURE YOU LOSE ALL ABILITY TO M…
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ON A LONG TRIPS (200 MILES OF INTERSTATE DRIVING) THE CAR LOSES IT'S ABILITY TO MAINTAIN HIGHWAY SPEED. THE ACCELERATOR PEDDLE DOES NOT WORK AND VEHICLE SLOWS DOWN TO IDLE. YOU HAVE TO PULL OFF THE ROAD AND STOP. PUT THE CAR IN PARK AND THEN BACK IN TO DRIVE. IT WORKS AFTER THAT. DURING THE FAILURE YOU LOSE ALL ABILITY TO MAINTAIN SPEED. IT HAS HAPPENED ABOUT 3 TIMES IN THE PAST YEAR. THE DEALER CHECKED OUT THE CAR AND NOT CODES ARE SHOWN. THANKS, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).' *PM
ON THREE SEPARATE OCCASIONS THUS FAR, WHILE DRIVING APPROXIMATELY 70 MPH ON INTERSTATE 93 IN MASSACHUSETTS AND NEW HAMPSHIRE, MY 2017 SUBARU FORESTER TOURING (WITH 21K MILES) LOST POWER AND COMPLETELY SHUTDOWN. ALL THREE TIMES, I WAS LUCKILY ABLE TO STEER THE VEHICLE TO SAFETY WHILE AVOIDING OTHER MOTOR VEHICLES AND NEITHER MYSE…
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ON THREE SEPARATE OCCASIONS THUS FAR, WHILE DRIVING APPROXIMATELY 70 MPH ON INTERSTATE 93 IN MASSACHUSETTS AND NEW HAMPSHIRE, MY 2017 SUBARU FORESTER TOURING (WITH 21K MILES) LOST POWER AND COMPLETELY SHUTDOWN. ALL THREE TIMES, I WAS LUCKILY ABLE TO STEER THE VEHICLE TO SAFETY WHILE AVOIDING OTHER MOTOR VEHICLES AND NEITHER MYSELF, MY PASSENGERS NOR ANYONE ELSE AROUND US WAS HURT. WHEN THE VEHICLE DECIDES TO SHUTDOWN, IT FEELS LIKE THE CAR DROPS ITSELF INTO NEUTRAL, THE RPMS SHOOT UP TO ABOUT 4500-5000 AND ALL OF THE LIGHTS ON THE DASHBOARD LIGHT UP. THERE IS ABOUT A FIVE SECOND WINDOW TO STEER THE VEHICLE TO SAFETY FROM WHEN YOU FIRST DETECT THAT THE ISSUE IS OCCURRING. AFTER WAITING FOR ABOUT 45 MINUTES AFTER THE INCIDENT, I AM ABLE TO START THE CAR BACK UP AND DRIVE IT. THIS IS A SERIOUS SAFETY CONCERN OF MINE (AND IT IS TERRIFYING WHEN IT HAPPENS) AND I HAVE ALREADY CONTACTED SUBARU OF AMERICA ASKING FOR A SOLUTION. I AM NOW CURRENTLY ONLY USING THE CAR ON SHORT TRIPS AND IF I HAVE TO GET ON THE HIGHWAY, I STICK TO THE RIGHT LANE AND DO NOT GO OVER 60 MPH.
BATTERY DRAINS SO THAT CAR WON'T START. AFTER HAVING A NEW BATTERY INSTALLED, THE BATTERY IS STILL SO WEAK THAT THE CAR WILL NOT START, AND THE ELECTRICAL POWER IS COMPLETELY DRAINED. EVEN THE CLOCK HAS TO BE RESET. THIS STARTED AROUND 35,000 MILES. I STOPPED FOR GAS AFTER DRIVING FOR AN HOUR, AND THE CAR WON'T START WITHOUT A J…
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BATTERY DRAINS SO THAT CAR WON'T START. AFTER HAVING A NEW BATTERY INSTALLED, THE BATTERY IS STILL SO WEAK THAT THE CAR WILL NOT START, AND THE ELECTRICAL POWER IS COMPLETELY DRAINED. EVEN THE CLOCK HAS TO BE RESET. THIS STARTED AROUND 35,000 MILES. I STOPPED FOR GAS AFTER DRIVING FOR AN HOUR, AND THE CAR WON'T START WITHOUT A JUMP.
WHILE STATIONARY, THE KEY WILL GET STUCK. IT WILL NOT ALLOW YOU TO TURN THE CAR OFF.IN CASE OF AN EMERGENCY, I WOULD HAVE A PROBLEM. IT HAS HAPPEN TWICE , I M SURE IT WILL HAPPEN AGAIN.
TWICE TODAY WHEN CAR WAS OFF, IN PARK, WITH PARK BRAKE APPLIED, IGNITION WOULD NOT ALLOW KEY TO RELEASE. 'FIX' WAS TO RESTART CAR, PUT IT IN DRIVE, THEN BACK TO PARK ONE OR MORE TIMES UNTIL KEY COULD FINALLY BE REMOVED.
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.