IllustrationI TURNED INTO A PARKING SPACE COVERING THE BRAKE AND CAME TO A STOP. I WENT TO SHIFT INTO PARK AND WHEN THE GEARSHIFT LEVER STARTED TO MOVE THE CAR ACCELERATED UNCOMMANDED AND RAN INTO THE BUILDING.
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
Vehicle Speed Control complaints
30 reportsTL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED WHILE DRIVING 8 MPH, THE VEHICLE ACCELERATED WITHOUT WARNING WHICH RESULTED IN THE VEHICLE CRASHING INTO A PARKED VEHICLE. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (SUBARU WHITE PLAINS 258 E MAIN ST, ELMSFORD, NY 1…
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TL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED WHILE DRIVING 8 MPH, THE VEHICLE ACCELERATED WITHOUT WARNING WHICH RESULTED IN THE VEHICLE CRASHING INTO A PARKED VEHICLE. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (SUBARU WHITE PLAINS 258 E MAIN ST, ELMSFORD, NY 10523, (844) 338-8731) WHERE IT'S AWAITING DIAGNOSIS. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 18,000.
UPON ENTERING A PARKING SPACE, WITH BREAK PEDDLE ENGAGED, THE VEHICLE LUNGED FORWARD AT EXTREME SPEED HITTING A PROTECTIVE BARRIER. AFTER A REST PERIOD, THE VEHICLE WAS PUT IN REVERSE AND WITH BREAK PEDDLE ENGAGED LURCHED BACKWARD AT THE SAME EXCESSIVE SPEED HITTING ANOTHER OBJECT. AFTER A LONG PERIOD WITH ENGINE TURNED OFF, THE…
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UPON ENTERING A PARKING SPACE, WITH BREAK PEDDLE ENGAGED, THE VEHICLE LUNGED FORWARD AT EXTREME SPEED HITTING A PROTECTIVE BARRIER. AFTER A REST PERIOD, THE VEHICLE WAS PUT IN REVERSE AND WITH BREAK PEDDLE ENGAGED LURCHED BACKWARD AT THE SAME EXCESSIVE SPEED HITTING ANOTHER OBJECT. AFTER A LONG PERIOD WITH ENGINE TURNED OFF, THE OPERATOR WAS ABLE TO DRIVE THE CAR SLOWLY. THE VEHICLE IS TO BE EXAMINED TO DETERMINE THE PROBLEM.
TL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED THAT WHILE ATTEMPTING TO SWITCH FROM DRIVE TO REVERSE, WHEN THEY PRESSED THE BRAKES THE VEHICLE SUDDENLY ACCELERATED FORWARD. THE VEHICLE CRASHED INTO THE CONTACT'S GARAGE DOOR THROUGH THE GARAGE DOOR AND PARTIALLY THROUGH THE CEMENT WALL INSIDE THE GARAGE. THE AIR …
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TL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED THAT WHILE ATTEMPTING TO SWITCH FROM DRIVE TO REVERSE, WHEN THEY PRESSED THE BRAKES THE VEHICLE SUDDENLY ACCELERATED FORWARD. THE VEHICLE CRASHED INTO THE CONTACT'S GARAGE DOOR THROUGH THE GARAGE DOOR AND PARTIALLY THROUGH THE CEMENT WALL INSIDE THE GARAGE. THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED HOWEVER IT WAS STILL BEING DETERMINED WHETHER THE VEHICLE WOULD BE DEEMED TOTALED. THE CONTACT'S WIFE RECEIVED INJURIES THE HIP AND LEG AREA. MEDICAL ATTENTION WAS NEEDED. THE CONTACT HAD SPOKEN TO THE DEALER (CASTLE SUBARU BURNSHARBOR MI) WHO REFERRED THE CONTACT TO THE MANUFACTURER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE WHO REQUESTED THE BLACK BOX AND OPENED A CASE REGARDING THE MATTER. THE VEHICLE HAD NOT BEEN REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 47,000.
A FEW INCIDENTS HAVE HAPPENED SINCE THE LATTER HALF OF 2020: WHILE AT A STOP LIGHT THAT TURNED GREEN, MY CAR STOPPED MOVING FOR A FEW SECONDS DESPITE PRESSING ON THE GAS PEDAL AND THE RPM WENT UP TO 6/ LOUDLY REVVED. I WAS ALMOST REAR ENDED AT THIS LIGHT.THE CAR HAS ALSO HAD THIS LACK OF MOVEMENT ISSUE ON THE FREEWAY WHILE IN TR…
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A FEW INCIDENTS HAVE HAPPENED SINCE THE LATTER HALF OF 2020: WHILE AT A STOP LIGHT THAT TURNED GREEN, MY CAR STOPPED MOVING FOR A FEW SECONDS DESPITE PRESSING ON THE GAS PEDAL AND THE RPM WENT UP TO 6/ LOUDLY REVVED. I WAS ALMOST REAR ENDED AT THIS LIGHT.THE CAR HAS ALSO HAD THIS LACK OF MOVEMENT ISSUE ON THE FREEWAY WHILE IN TRAFFIC. MY CAR JERKS SEVERAL TIMES ON SLIGHT INCLINES ESPECIALLY AFTER SURPASSING 40 MPH. OFTEN TIMES, I CANNOT ACCELERATE PAST 40 MPH REGARDLESS IF THE DRIVE IS ON A FLAT SURFACE OR AN INCLINE. THE RPM WILL INCREASE, BUT THE GEAR FEELS LIKE IT WILL GET STUCK AND THE CAR MAKES A LOUD NOISE. THIS IS THE MOST NOTICEABLE GOING FROM 40 MPH TO 50-55 MPH. THESE INCIDENTS ARE ON CITY STREETS. HOWEVER, POWER OFTEN GETS LOST GOING ON TO FREEWAYS FOR THE SAME REASON. I CANNOT SURPASS 40 MPH WHEN ENTERING A FREEWAY AND WAS ALMOST SIDESWIPED ON THE DRIVER'S SIDE BY AN IMPATIENT PERSON ENTERING TOO EARLY WHERE THE ON-RAMP MERGES WITH THE FREEWAY BECAUSE OF THIS. WHILE ON A FREEWAY, THE CAR WILL CONTINUE TO ACCELERATE DESPITE ATTEMPTING TO SLOW IT DOWN BY PRESSING ON THE BRAKE OR COMING TO A COMPLETE STOP. THIS HAS ALSO HAPPENED ON CITY STREETS AND POSES A SAFETY ISSUE. THE ACCELERATION WHEN THIS HAPPENS IS MUCH FASTER THAN WHEN I TRY TO MANUALLY ACCELERATE THE CAR MYSELF IN OTHER CONTEXTS, LIKE MENTIONED ABOVE. I BELIEVE IT IS THE CVT AS THIS SEEMS TO BE A COMMON PROBLEM WITH CARS OF MY MAKE, MODEL, AND YEAR.
AS IT STANDS IN P (PARK) IT HAS A REALLY HIGH IDLE EVEN IN NEUTRAL AS IF IT WANTS TO GO. THEN IN DRIVE IT WILL LURCH REALLY FAST. OR I HAVE MY FOOT ON THE BREAK AND IT STARTS TO REV HIGH THEN AFTER 3-5SEC OF SEEING REV CYCLE IN THE 2000-3000S IT CALMS DOWN. I ALMOST REAR-ENDED A CAR YESTERDAY. IF YOU SLIGHTLY PULL OFF THE BRAKE …
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AS IT STANDS IN P (PARK) IT HAS A REALLY HIGH IDLE EVEN IN NEUTRAL AS IF IT WANTS TO GO. THEN IN DRIVE IT WILL LURCH REALLY FAST. OR I HAVE MY FOOT ON THE BREAK AND IT STARTS TO REV HIGH THEN AFTER 3-5SEC OF SEEING REV CYCLE IN THE 2000-3000S IT CALMS DOWN. I ALMOST REAR-ENDED A CAR YESTERDAY. IF YOU SLIGHTLY PULL OFF THE BRAKE THE CAR WILL WANT TO JOLT FORWARD. WHEN IT REVS HIGH AND I TAKE MY FOOT OFF THE BRAKE IT JOLTS FORWARD THEN SLOWS AS IF IT RECOGNIZES I NEVER HAD MY FOOT ON THE ACCELERATOR. IN ALL OF THESE TIMES I NEVER HAD MY FOOT ON THE GAS PEDAL. I DON'T HAVE PICTURES BECAUSE OBVIOUSLY IT'S SCARY AND I'D RATHER FOCUS ON THE DRIVING THEN MY CAR ACTING STRANGE. BUT I REALISED THAT WHEN THIS WAS HAPPENING MORE AND MORE FREQUENTLY MY BRAKES COMPLETELY WORE OUT. I WENT FROM A 7/10 TO A 1/10 IN BETWEEN A 3000 MILE SERVICE! IT ALL BECAME MORE APPARENT AFTER THE 30,000 MILE MARK
I HAD MY FOOT ON THE BREAK (RIDING THE BREAK AND WAS SLOWING DOWN TO TAKE A LEFT TURN ONTO A RESIDENTIAL ROAD, AND AS I LEFT OFF THE BREAK TO START TURNING BECAUSE I WAS NOW GOING SLOW ENOUGH, THE CAR ACCELERATED FOR A SECOND. RPM RANDOMLY SHOT UP AND THE CAR JUMPED FORWARD. IT HAPPENED QUICKLY AND SUBSIDED JUST AS QUICKLY.
TL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, WITH THE CRUISE CONTROL ACTIVATED, THE VEHICLE WOULD ACCELERATED INDEPENDENTLY WITHOUT WARNING. THE CONTACT STATED THAT THE FAILURE OCCURRED FOR APPROXIMATELY 3 SECONDS BEFORE RESUMING NORMAL OPERATION. THE VEHICLE WAS TAKEN TO …
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TL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, WITH THE CRUISE CONTROL ACTIVATED, THE VEHICLE WOULD ACCELERATED INDEPENDENTLY WITHOUT WARNING. THE CONTACT STATED THAT THE FAILURE OCCURRED FOR APPROXIMATELY 3 SECONDS BEFORE RESUMING NORMAL OPERATION. THE VEHICLE WAS TAKEN TO MARK MILLER SUBARU (3535 STATE ST, SOUTH SALT LAKE, UT 84115) AND AN UNKNOWN DEALER IN AUSTIN, TEXAS, HOWEVER, NEITHER DEALER WERE ABLE TO PROVIDE A CONCLUSIVE DIAGNOSIS OF THE VEHICLE. THE MANUFACTURER HAD NOT BEEN NOTIFIED OF THE FAILURE. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 31,000.
TL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 5 MPH, THE BRAKE PEDAL WAS DEPRESSED AND THE VEHICLE INDEPENDENTLY ACCELERATED. THE VEHICLE WAS TAKEN TO MARK MILLER SUBARU SOUTH TOWNE SERVICE LOCATED AT 10920 STATE ST, SANDY, UT 84070, (888) 791-4530, TO BE DIAGNOSED WHICH WAS …
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TL* THE CONTACT OWNS A 2018 SUBARU FORESTER. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 5 MPH, THE BRAKE PEDAL WAS DEPRESSED AND THE VEHICLE INDEPENDENTLY ACCELERATED. THE VEHICLE WAS TAKEN TO MARK MILLER SUBARU SOUTH TOWNE SERVICE LOCATED AT 10920 STATE ST, SANDY, UT 84070, (888) 791-4530, TO BE DIAGNOSED WHICH WAS STILL PENDING. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED NOR INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 26,457.
ON SEVERAL OCCASIONS WHILE DRIVING ON THE HIGHWAY, MY EYESIGHT FEATURE SUDDENLY DISENGAGES AND MY CRUISE CONTROL CEASES TO WORK AND NO LANE ASSIST OR OTHER SAFETY FEATURES CONTAINED WITH THE "EYESIGHT PACKAGE" WORK FOR EXTENDED PERIODS OF TIME. THIS HAS OCCURRED WHEN IT IS RAINING OR SNOWING.
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.