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2017 Subaru Forester

Owner reports · Recalls · Investigations

More warning signs than most Forester years

Owner complaints for the 2017 Subaru Forester are substantially higher than the model-year median of 131.

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When problems were reported

Mileage at the reported incident

321 reports with mileage · 265 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Air Bags. Review the 164 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 106 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Visibility/wiper. Review the 104 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

40 crash reports1 fire reports25 injury reports

Fuel/propulsion System complaints

11 reports
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Mileage unknown · Jan 11, 2024
Fuel/propulsion SystemVehicle Speed ControlCrash

When I pulled into a parking spot in a parking lot, the car seemed to go faster than I intended. I swiped a car next to me, which to me as it was not a tight space. I immediately, turned off the engine and dealt with the passenger of the other vehicle, exchanging information. After sometime, I got back in my car to move it to a…

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When I pulled into a parking spot in a parking lot, the car seemed to go faster than I intended. I swiped a car next to me, which to me as it was not a tight space. I immediately, turned off the engine and dealt with the passenger of the other vehicle, exchanging information. After sometime, I got back in my car to move it to another location. As soon as the motor was running in reverse, in began to accelerate making a loud roaring noise. I stepped on the brakes, meanwhile going in reverse at an accelerating speed, trying to keep away from cars parked on either side. I also pulled up the emergency brake. At the end of the row, I felt I could move forward without hitting many cars and hoping that in doing so, it would now slow down. It did not. At that point, I thought the only way to stop it, was going to be hitting something. (I did not want to go out of the parking lot into traffic). I aimed for a small tree, not realizing that there was a high curb surrounding it. The car hit the curb and flew over it, missing the tree, blowing out a rear tire, and hitting another parked car. That car slid into another car causing a chain reaction with still another car. There were 6 cars that were damaged in all. My insurance company is involved, but I do have a cap on how much liability I can pay.

NHTSA ODI #11564881

Mileage unknown · Dec 4, 2023
EngineFuel/propulsion System

Forester in known for chronic exhaust leak into cabin through AC vents. Reported this to dealership and they "could not find the problem." Cabin of vehicle smells heavily of exhaust. Driver gets headache from smell/gas while driving. Internet forums show this is a common unaddressed issue by dealerships. Car is a 2017 and shou…

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Forester in known for chronic exhaust leak into cabin through AC vents. Reported this to dealership and they "could not find the problem." Cabin of vehicle smells heavily of exhaust. Driver gets headache from smell/gas while driving. Internet forums show this is a common unaddressed issue by dealerships. Car is a 2017 and should not be leaking exhaust into the cabin.

NHTSA ODI #11558302

Mileage unknown · Nov 27, 2023
Fuel/propulsion System

On three separate occasions, my Forester has stalled while driving. The engine loses power, and pressing the accelerator increases the rpms sporadically. We have had to coast to the side of the road. Then, when we try to restart it, it turns over but never actually starts. After a couple of tries, it eventually will start an…

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On three separate occasions, my Forester has stalled while driving. The engine loses power, and pressing the accelerator increases the rpms sporadically. We have had to coast to the side of the road. Then, when we try to restart it, it turns over but never actually starts. After a couple of tries, it eventually will start and run normally again. Because this happens while driving at highway speeds, it is a safety issue. The problem happens rarely, but is dangerous when it happens. There are no warning lights or indication of what went wrong and mechanics do not find an issue, as it hasn’t happened while they were driving.

NHTSA ODI #11557116

Mileage unknown · Aug 16, 2023
EngineFuel/propulsion SystemUnknown Or OtherCrash

On July 31,2023, approximately 8PM, I was driving my 2017 Subaru slowly as I made the 90degree turn into my driveway. Midway up the driveway, the car suddenly —on its own—spontaneously accelerated , burst through the half open garage door, across the garage, and crashed through the garage wall into my family room—bulldozing…

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On July 31,2023, approximately 8PM, I was driving my 2017 Subaru slowly as I made the 90degree turn into my driveway. Midway up the driveway, the car suddenly —on its own—spontaneously accelerated , burst through the half open garage door, across the garage, and crashed through the garage wall into my family room—bulldozing through two sheets of plywood and large pieces of firewood in the garage, and then destroying heavy antique furniture in the family room before coming to rest. The jagged remains of the wall prevented opening either the passenger or the driver’s side door. My adult son, [XXX] , was my passenger in the front seat. He climbed to the back, but the hatch has no handle on the inside, so we were trapped in the car. I called 911. Police and Fire departments arrived. Miraculously, we were not hurt, but had anyone been in the family room at the time, they would have been seriously injured or killed. I made an insurance claim with Allstate Insurance Company the next morning. They determined that the car is "repairable" but will not pay for it to be examined and repaired at a Subaru dealership or Subaru certified body shop . They tell me I have to use at shop in their "preferred network" and pay the extra cost that a Subaru facility would charge. A non-Subaru affiliated mechanic theorized that it was a computer problem that caused the malfunction. Doing a "google" search, I find that hundreds of drivers have had this sudden, unexpected acceleration problem,(Subaru Forester years 20120-2018) but that Subaru dealerships are unable to discover the cause. There have also been two "class action" lawsuitsI I called Groove Subaru dealership,(5300 S. Broadway, Englewood, CO, 80113, and the service department man that I spoke with seemed not at all concerned about the spontaneous acceleration issue, and casually recommended a body shop. The UNKNOWN cause needs to be found before someone is killed !!! PLEASE HELP INFORMATION REDACTED PURSUANT TO THE FREEDOM OF IN

NHTSA ODI #11538950

Mileage unknown · Jun 11, 2022
Fuel/propulsion SystemVehicle Speed ControlCrash

2017 Subaru Forester- I had arrived to work and stopped at parking spot. Before I could put car in park position.. I heard a car high pitch revving sound. The car throttles forward and hit a building. Now I’m scared of the car.

NHTSA ODI #11468814

54,135 miles · Apr 28, 2021
Fuel/propulsion System

CAR NEARLY STALLS WHEN STARTING FROM STOP AFTER SITTING AT LIGHT OR INTERSECTION WHEN IN REGULAR (NOT SPORT) MODE. ESPECIALLY OCCURS WHEN HAVING TO TURN FROM A STOP AND ACCELERATE FASTER. HAVE ALMOST BEEN HIT BY ONCOMING TRAFFIC SEVERAL TIMES. DOES NOT OCCUR IN THE OTHER MODES. VERY SCARY! ?FUEL PUMP OR OTHER DEFECT? CITY…

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CAR NEARLY STALLS WHEN STARTING FROM STOP AFTER SITTING AT LIGHT OR INTERSECTION WHEN IN REGULAR (NOT SPORT) MODE. ESPECIALLY OCCURS WHEN HAVING TO TURN FROM A STOP AND ACCELERATE FASTER. HAVE ALMOST BEEN HIT BY ONCOMING TRAFFIC SEVERAL TIMES. DOES NOT OCCUR IN THE OTHER MODES. VERY SCARY! ?FUEL PUMP OR OTHER DEFECT? CITY AND COUNTY ROADS. REPRODUCIBLE.

NHTSA ODI #11414231

60,000 miles · Mar 22, 2021
Fuel/propulsion SystemVisibility/wiper

FRONT WINDSHIELD HAS DEVELOPED TWO LINEAR CRACKS SPONTANEOUSLY, ONE SMALL ONE 5 CM LONG, THE OTHER ACROSS THE DRIVER'S SIDE WINDSHIELD ABOUT 50 CM. THIS APPEARS TO HAVE OCCURRED SPONTANEOUSLY, THERE WAS NO DEBRIS, ETC, FIRST NOTED WHILE VEHICLE WAS IN GARAGE. THERE ARE NO STELLATE MARKINGS, ETC.

NHTSA ODI #11404287

18,000 miles · Sep 24, 2020
Electrical SystemFuel/propulsion System

FIRST TIME, I WAS DRIVING IN THE MIDDLE LANE ON INTERSTATE AT HIGHWAY SPEED, ALL OF SUDDEN THE ACCELERATOR WOULD NOT RESPOND, THE CAR PANEL WENT BLACK, NO LIGHTS OR INFO SHOWED. I COASTED OFF TO THE SIDE OF THE ROAD, THE CAR WAS IN DRIVE, IGNITION ON. THE EMERGENCY LIGHT WOULDN'T GO ON. I SHUT THE CAR DOWN AND INTO PARK AND WAIT…

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FIRST TIME, I WAS DRIVING IN THE MIDDLE LANE ON INTERSTATE AT HIGHWAY SPEED, ALL OF SUDDEN THE ACCELERATOR WOULD NOT RESPOND, THE CAR PANEL WENT BLACK, NO LIGHTS OR INFO SHOWED. I COASTED OFF TO THE SIDE OF THE ROAD, THE CAR WAS IN DRIVE, IGNITION ON. THE EMERGENCY LIGHT WOULDN'T GO ON. I SHUT THE CAR DOWN AND INTO PARK AND WAITED A COUPLE OF MINUTES AND RESTARTED THE ENGINE WITHOUT A PROBLEM. SECOND TIME, I WAS DRIVING IN THE MIDDLE LANE ON INTERSTATE AT HIGHWAY SPEED, ALL OF SUDDEN THE ACCELERATOR WOULD NOT RESPOND, THE CAR PANEL WENT BLACK, NO LIGHTS OR INFO SHOWED. I COASTED OFF TO THE SIDE OF THE ROAD, THE CAR WAS IN DRIVE, IGNITION ON. THE EMERGENCY LIGHT WOULDN'T GO ON. I SHUT THE CAR DOWN AND INTO PARK AND WAITED A COUPLE OF MINUTES BUT CAR WOULD NOT RESTART. I ROCKED THE CAR SIDE TO SIDE AND THE CAR STARTED. I TOOK TO THE DEALER, THEY PRESSURE TESTED FUEL PUMP AND FOUND A SLIGHT PRESSURE DROP ONCE DURING THE TEST. REPLACED FUEL PUMP AT 18,000 MILES.

NHTSA ODI #11361001

29,000 miles · Dec 29, 2019
Fuel/propulsion SystemPower TrainVehicle Speed Control

I WAS DRIVING ON THE HIGH WAY FOR ABOUT 2 HOURS, 70 MPH, GAS WAS AT ABOUT 1/8 FULL, BUT LOW GAS LIGHT ON. THE GEAR SHIFTER REMAINED IN D AND THE INDICATOR ON THE DASH SAID D. THE ENGINE REVVED AS IF IT WERE IN NEUTRAL AND WOULD NOT PROVIDE POWER TO THE WHEELS. THE CHECK ENGINE, TRACTION CONTROL, AND CRUISE CONTROL LIGHTS CAME ON…

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I WAS DRIVING ON THE HIGH WAY FOR ABOUT 2 HOURS, 70 MPH, GAS WAS AT ABOUT 1/8 FULL, BUT LOW GAS LIGHT ON. THE GEAR SHIFTER REMAINED IN D AND THE INDICATOR ON THE DASH SAID D. THE ENGINE REVVED AS IF IT WERE IN NEUTRAL AND WOULD NOT PROVIDE POWER TO THE WHEELS. THE CHECK ENGINE, TRACTION CONTROL, AND CRUISE CONTROL LIGHTS CAME ON, ALONG WITH POSSIBLY OTHERS. THE CAR BEGAN TO SLOW SINCE IT WAS JUST REVVING IN WHAT APPEARED TO BE NEUTRAL WHILE THE GAS PEDAL WAS PRESSED. EVENTUALLY I MADE IT TO THE SHOULDER. I TURNED THE CAR OFF FOR ABOUT 15 SECONDS THEN STARTED IT AGAIN. IT STRUGGLED TO START FOR A MOMENT LIKE THE BATTERY WAS LOW OR IT WAS COLD OUTSIDE, BUT STILL STARTED ON THE FIRST TRY. I SHIFTED INTO D AND BEGAN TO MOVE ON THE SHOULDER, BUT WHEN THE CAR WHEN OVER ABOUT 10 OR 15 MPH, IT WOULD REV AND NOT PROVIDE POWER TO THE WHEELS. I HAD THE CAR TOWED TO THE DEALER WHERE THEY ADDED GAS, TEST DROVE IT, SAID THERE WAS NOTHING WRONG, AND NOTHING THAT THEY COULD DO.

NHTSA ODI #11291876

21,300 miles · Dec 17, 2019
Electronic Stability Control (esc)Fuel/propulsion SystemPower Train

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.

NHTSA ODI #11289678

Official recalls

1

19V701000 · Air Bags:sensor:occupant Classification

Oct 3, 2019

Subaru of America, Inc. (Subaru) is recalling certain 2015-2018 Forester vehicles equipped with heated seats. An electrical connection in the front passenger seat for the Occupant Detection System (ODS) may loosen.

Consequence & remedy

Consequence: If the connection loosens, the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.

Remedy: Subaru will notify owners, and dealers will inspect and, as necessary, replace the ODS sensor mat harness, free of charge. The recall began February 11, 2020. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WUM-98.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

PE19009 · Occupant Detection System (ods) Failure

Opened Aug 6, 2019 · Closed Jan 22, 2020

Status: closed (inferred from source dates) · Air Bags; Air Bags:frontal; Air Bags:frontal:passenger Side:inflator Module; Air Bags:sensor:occupant Classification

The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.

Additional source detail variants (4)

Air Bags:frontal:passenger Side:inflator Module

The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.

Air Bags:frontal

The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.

Air Bags:sensor:occupant Classification

The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.

Air Bags

The Office of Defects Investigation (ODI) opened PE19-009 to investigate 51 complaints and additional Early Warning Report (EWR) data related to allegations of front passenger seat Occupant Detection System (ODS) malfunctions in model year (MY) 2016 through 2018 Subaru Forester vehicles. These vehicles use a capacitive type ODS, which is intended to classify the occupant of the passenger seat as either full-sized, small stature, a child seat or other object. The complaints reported the ODS failed to operate properly, the SRS (Supplemental Restraint System) warning light illuminated, and/or the ODS incorrectly suppressed (turned off) the front passenger air bag when the seat was occupied by a full-sized passenger. In a frontal crash that is sufficient to warrant deployment, a suppressed air bag may increase the risk of injury to the occupant of the seat.On August 14, 2019 ODI sent an Information Request (IR) to Subaru requesting information on the subject vehicles and MY 2014-2015 Subaru Forester vehicles.On October 3, 2019, Subaru submitted a Defect Information Report (DIR) to NHTSA describing a safety defect in the passenger-side front airbag Occupant Detection System (ODS) harness of 366,282 MY 2015-2018 Subaru Forester vehicles equipped with seat heaters.The DIR stated that over time, due to a decrease in contact pressure between the terminals in the ODS sensor mat harness, a temporarily unstable electrical connection may be possible. If the connection is temporarily unstable, the ODS may not properly determine the status of the right front seat occupant. If the ODS is unable to correctly determine the status of the front occupant, the airbag warning light may illuminate, and the front passenger airbag may deactivate even though the seat is occupied, increasing the risk of injury to the front passenger in the event of a crash.Using vehicle production data and field occurrence frequency, Subaru determined the potentially affected vehicle production range to be between January 20, 2015 ?and August 1, 2017.In addition, Subaru indicated that over 99 percent of the related MY 2015-2018 field reports with vehicles in the production range involved vehicles with seat heaters.NHTSA's analysis of complaint and warranty claim data showed 1,440 of the complaints and 11,672 of the claims involve vehicles with seat heaters that were built within the production range covered by Subaru's recall.In addition, NHTSA's analysis showed a complaint rate of 393.1 per hundred thousand vehicles for the recalled population and 89.0 for MY 2014 through 2018 vehicles that are not included in the recall. Analysis of warranty claim data found a claim rate of 3.2 percent for the recalled population and 0.3 percent for MY 2014 through 2018 vehicles that are not included in the recall.Subaru will instruct owners with Subaru Forester vehicles produced in the affected vehicle production range, to bring their vehicles to a dealer to have the sensor mat harness, inspected and replaced with a new part, including the seat cushion assembly, if necessary.Based on ODI's analysis, the actions taken by Subaru mitigate any unreasonable risk to safety posed by ODS sensor mat failures in the subject vehicles. For subject and peer vehicles outside the recall population and those equipped without seat heaters, ODI's analysis indicates that there is currently no safety-related defect trend. Given these circumstances, further use of the agency resources in this matter does not appear to be warranted. Accordingly, this investigation is closed.

Go deeper into Subaru Forester problems