RoadVitals

2011 Subaru Forester Driver assistance Problems

Owner-reported complaints naming the driver-assistance system, filed with NHTSA

Data refreshed

Driver assistance reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
14
Latest Sep 29, 2023
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
10%
of 147 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
12
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
1

What this page shows

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2011 Subaru Forester submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 14 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming driver-assistance

Shown in the owner’s own words, exactly as filed

Driver assistance
Filed Sep 29, 2023
Crash reported

unintended sudden acceleration defects without warning without driver input. I could kill & be killed. It can happen again! I backed up a little in an angle moving away from parking. Suddenly, without any warning, the car took off and frantically flew backward, passing a stop sign (offense), crossing the main road 4 lanes, perpendicular to the marked lanes (offense), mounted on the sidewalk and landed on a private property breaking bushes. It happened sooo fast! I could not figure out what happened! If a car was travelling in the main road, both of us might have been seriously injured or died! The police gave me a citation for two civil offenses and “negligently operating MV” which is a criminal offense. The Police demanded to suspend my license! I am scheduled by the police for a court hearing, demanding to issue a criminal claim against me, arraign me as a criminal and stand a criminal trial! I few days ago I backed up in an angle out of my driveway to Rte-9 which is a major Road/highway as I have been doing for years with no problem. The same phenomena happened: the car accelerated frantically, turned in a circle and stopped by hitting a telephone pole! If the car approaching did not stop I found out that numerous complaints and more than one law-suit filed against Subaru 2012-2018. Mine is 2011. Thousands of dollars in legal fees, being sued for property damages, getting driving points, increased insurance for years, badly damaging my car. This might happen! Should I even touch this car again?

NHTSA ID
11547379
Incident
Aug 14, 2023
Driver assistance
Filed Jun 6, 2022
Crash reported1 injury reported

Driving a 2011 Subaru Forester, about 5mph in traffic on city street when car suddenly and unexpectedly accelerated at full gas and rammed into truck in front of me, with no pressure on the gas pedal. Slamming on brakes and pulling on hand brake was not enough to override the unexpected and unasked-for acceleration. I can only imagine what would have happened if there were pedestrians or if I'd been going faster. Subaru should be absolutely ashamed - in researching this, I've learned that they KNOW that this happens, but refuse to create a recall. Shame on you, Subaru.

NHTSA ID
11467901
Incident
Jun 6, 2022
Driver assistance
Filed Feb 21, 2021

THIS HAPPENED WHILE DRIVING THROUGH COLORADO, FROM CRESTED BUTTE TO TELLURIDE. I WAS DRIVING WITH THE CRUISE CONTROL ACTIVE. AS THE CAR WENT UP HILLS IT WOULD AUTOMATICALLY SHIFT DOWN, CAUSING THE ENGINE TO REV INTO THE 4,000 RPM RANGE, WHICH IS NOT SAFE TO DRIVE SUSTAINED. IN ORDER TO COMBAT THIS I USED THE MANU-MATIC SYSTEM TO HOLD THE TRANSMISSION IN THE HIGHER GEAR. AFTER A WHILE MY CHECK ENGINE LIGHT CAME ON. CONCURRENTLY, THE TRACTION CONTROL INDICATOR LIGHT CAME ON, AND THE CRUISE CONTROL LIGHT BEGAN BLINKING. THINKING IT WAS AN OVERHEATING ISSUE, I STOPPED THE CAR AND WAITED A WHILE. AFTER A FEW CYCLES OF DRIVE/STOP/DRIVE/STOP, THE LIGHTS TURNED OFF. THINKING THE ISSUE WAS RESOLVED, WE CONTINUED ON TO TELLURIDE. LEAVING TELLURIDE, HOWEVER, WITH THE SAME DRIVING BEHAVIOR, THE ISSUE RETURNED, ONLY WORSE NOW. WHEN THE LIGHTS CAME ON THE ACCELERATOR STOPPED RESPONDING. WE WERE HEADED UPHILL AT 65MPH ON A NARROW TWO LANE ROAD, WITH A STEEP DROP OFF THE SIDE, AND MULTIPLE CARS BEHIND US. I PRESSED THE ACCELERATOR ALL THE WAY DOWN AND THE CAR DID NOT RESPOND AT ALL. THIS CAUSED US TO BEGIN RAPIDLY DECELERATING, WHICH WAS EXTREMELY UNSAFE GIVEN THE CONDITIONS. WE PULLED OVER AND TURNED OFF THE CAR. AFTER A SHORT WHILE OF SITTING ON THE SIDE OF THE ROAD, I TURNED THE CAR BACK ON AND THE ISSUE HAD CEASED. THE INTERMITTENT NATURE OF THIS ISSUE IS SCARY - AT ANY MOMENT THE ACCELERATOR MAY CEASE TO RESPOND, POTENTIALLY CAUSING A LIFE THREATENING SCENARIO. UPON REACHING OUR DESTINATION, A FRIEND HAD A CODE SCANNER AND PULLED CODE "P2138 - THROTTLE PEDAL POSITION SENSOR SWITCH D E VOLTAGE CORRELATION." THERE'S NO OFFICIAL DOCUMENTATION FROM SUBARU, THAT I COULD FIND, ON THE ISSUE, AND BROWSING VARIOUS SUBARU FORUMS TURNS UP A LOT MORE QUESTIONS THAN ANSWERS.

NHTSA ID
11397216
Incident
Jan 26, 2021
Mileage
100,000 mi
BrakesDriver assistance
Filed Sep 3, 2019
Crash reported

WHILE PARKING IN A STORE'S LOT WITH MY FOOT ON THE BRAKE, MY VEHICLE SUDDENLY ACCELERATED. I KEPT APPLYING THE BRAKES BUT THE CAR WOULDN'T STOP I ENDED UP CRASHING THROUGH A FENCE AND FALLING DOWN A 10 FOOT EMBANKMENT. *DT *TR

NHTSA ID
11253025
Incident
Aug 15, 2019
Mileage
54,000 mi
Body & structureDriver assistanceEngine
Filed Dec 5, 2017
Crash reported

WHEN I PARKING MY CAR INTO THE PARKING PLACE, THE CAR SUDDENLY GAVE A ROAR AND RUSHED INTO SOMEONE'S BACKYARD. ALTHOUGH I PUSHED THE BRAKE PEDAL AS DEEP AS POSSIBLE, THE CAR RUSHED AROUND 10 METERS(?) AND FULLY STOPPED AFTER THE CAR HIT THE RODS OF WOOD STAIRCASE(TWO OF THE RODS OF STAIRCASE WAS BOKEN BY MY CAR). AT THAT MOMENT I JUST WANT SHIFT THE CAR FROM "D" TO "R" (BUT NOT YET), THE UNINTENDED ACCELERATION HAPPENED TO THIS CAR. TIME: IT HAPPENED BETWEEN 2:30 TO 3:00 PM ON NOV 30, 2017. PLACE: RUSHED INTO THE BACKYARDS OF 8352 KAVANAGH RD, DUNDALK MD 21222, THIS BACKYARDS LOCATED ON SANDY PLAINS ROAD. CONSEQUENCE: 1. SCRATCHS TO FRONT BUMPER. 2. FRONT BUMPER BECAME LOOSE AFTER COLLISION HAPPENED TO THE ROD OF STAIRCASE. 3. I HAVE STIFF MUSCLES ON BOTH THIGHS FOR TWO DAYS AFTER THIS ACCIDENT.

NHTSA ID
11052597
Incident
Nov 30, 2017
BrakesDriver assistance
Filed Feb 5, 2015
Crash reported

TL* THE CONTACT OWNS A 2011 SUBARU FORESTER. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER:14V311000 (SERVICE BRAKES, HYDRAULIC). THE VEHICLE WAS REPAIRED AT A DEALER, BUT THE REMEDY WAS NOT EFFECTIVE. WHILE AT A STOP LIGHT, THE VEHICLE ACCELERATED WHILE THE CONTACT'S FOOT WAS DEPRESSING THE BRAKE PEDAL. THE VEHICLE CRASHED INTO THE REAR OF ANOTHER VEHICLE. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC, BUT THE DIAGNOSTIC RESULTS WERE UNKNOWN. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA ID
10681476
Incident
Sep 8, 2014
BrakesDriver assistance
Filed Nov 3, 2014
Crash reported

WHILE BACKING UP (CAR IN REVERSE) AT ABOUT 5 MPH, ACCELERATION OCCURRED MAKING THE CAR GO BACKWARDS VERY FAST. PRESSING THE BRAKE PAD TO THE GROUND HAD NO AFFECT. THE CAR, REVERSING OUT OF CONTROL, SIDE-SWIPED ANOTHER VEHICLE AND A PIECE OF EQUIPMENT. CAR FINALLY BACKED UP INTO A HUGE FORKLIFT WHICH WENT THROUGH THE REAR WINDOW AND STOPPED THE CAR. LUCKILY NO ONE WAS HURT BUT THE SUBARU FORESTER WAS TOTALED. *TR

NHTSA ID
10652155
Incident
Aug 8, 2013
Mileage
22,000 mi
Driver assistanceEngine
Filed Feb 17, 2014
Crash reported

I PULLED INTO A PARKING SPACE, APPLIED MY BRAKES AND WAS ABOUT TO PUT MY 2011 SUBARU FORESTER INTO PARK WHEN IT SUDDENLY ACCELERATED FORWARD AND DROVE INTO A STORE FRONT. THE CAR TRAVELED APPROXIMATELY 20 FEET BEFORE HITTING THE WALL AND PLATE GLASS WINDOW. MY DRIVER'S SIDE AIRBAG DEPLOYED. THE CAR WAS TOTALED. *TR

NHTSA ID
10564680
Incident
Jan 31, 2014
Mileage
23,500 mi
Body & structureDriver assistanceElectrical+1 more
Filed Jul 9, 2013
Crash reported

PULLED INTO A PARKING SPACE AT A LOCAL TRAIN STATION. CAR WAS STOPPED AND SHUT OFF. NOT SURE IF KEYS WERE IN IGNITION OR NOT. WHEN REACHING OVER TO GET HANDBAG AND TOTE I HEARD THE ENGINE REV UP VERY SUDDENLY AND LOUDLY, CAR JUMPED 6" CURB AND PROPELLED FORWARD ABOUT TWO FEET WHEN RIGHT FRONT BUMPER HIT TREE AND CAR STOPPED. AIR BAGS DID NOT DEPLOY AND I WAS NOT INJURED. BEFORE I EVEN KNEW ABOUT THIS WEBSITE I TOLD THE ADJUSTER AND THE DEALERSHIP THAT THE CAR TOOK OFF ON ITS OWN. THE ONLY REACTION I GOT WAS STRANGE LOOKS. TOLD BY BODY SHOP THAT CAR WAS "TOTALLY FIXABLE" WITHIN TWO WEEKS. $7,000 IN BODY WORK 3 WEEKS LATER WAS TOLD ENGINE WAS "RUNNING ROUGH" AND IT WAS SENT TO SUBARU DEALER WHERE PURCHASED. TOLD THAT ENGINE HAD TO BE REBUILT - MACHINING HEAD; VALVE REPLACEMENT; NEW GASKETS ETC. FIVE WEEKS LATER SUBARU STILL HAS MY CAR. ABOUT 3 WEEKS AGO PRIOR TO KNOWING ABOUT THIS WEBSITE AND SEEING HOW MANY OTHER PEOPLE HAVE REPORTED THIS PROBLEM I ORDERED A NEW SUBARU USING THIS ONE AS A TRADE IN. SUBARU WON'T GIVE ME A TRADE IN VALUE UNTIL CAR IS FIXED AND THEY HAVE HAD THE CAR FIVE WEEKS AND STILL HAVEN'T FIXED IT. I LIVE IN THE SUBURBS AM 62 YEARS OLD AND I'VE BEEN TAKING TRAINS, BUSES, MY BIKE AND WALKING TO GET TO WORK AND TO DO EVERYDAY ERRANDS. NO OFFER OF A LOANER FROM SUBARU ALTHOUGH I'VE ASKED TWICE. CONTACTED CORPORATE SUBARU AND REPORTED WHAT I READ ON THIS WEBSITE AND MY OWN EXPERIENCE AND WAS TOLD THAT IT WOULD BE HARD TO PROVE. LAST WEEK CORPORATE SAID THEY WOULD TRY TO OFFER ASSISTANCE WITH THE PURCHASE OF THE NEW CAR IN THE WAY OF LOYALTY INCENTIVE. AS OF TODAY I HAVE NO CAR, NO IDEA WHEN OR IF THE OLD ONE WILL BE FIXED, HOW MUCH IT WILL BE WORTH AS A TRADE IN, A NEW CAR THAT I CAN'T HAVE AND THAT HAS NO DEFINITIVE PRICE, AND A LOT OF TALK BUT NO ACTION FROM THE DEALERSHIP AND CORPORATE SUBARU. *TR

NHTSA ID
10523859
Incident
May 17, 2013
Mileage
28,000 mi
Driver assistance
Filed Jul 2, 2013
Crash reported

DRIVER (ADULT FEMALE) WAS BACKING UP TO PARK WHEN THE VEHICLE SUDDENLY ACCELERATED. DRIVER LIFTED FOOT OFF THE ACCELERATOR AND HIT THE BRAKE. VEHICLE ACCELERATED EVEN MORE. CRASHED INTO A GUY WIRE ON AN ELECTRIC POLE, SNAPPING OFF THE TOP OF THE POLE. SEVERAL DAYS LATER THE SECOND DRIVER (ADULT MALE) WAS BACKING UP IN THE DRIVEWAY TO TURN AROUND. CAR SUDDENLY ACCELERATED. SECOND DRIVER NOW A BELIEVER. *TR

NHTSA ID
10522911
Incident
Jun 29, 2013
Mileage
30,000 mi
AirbagsBody & structureDriver assistance+1 more
Filed Feb 7, 2013
Crash reported

PULLING OUT OF A PARKING SPACE AT THE CVS DRUG STORE, PINE ISLAND RD AND DEL PRADO BLVD IN CAPE CORAL FL., PUT THE CAR INTO DRIVE AND THE CAR ACCELERATED ON ITS ON ACROSS THE PARKING LOT, HITTING A PARKED CAR HEAD ON. MY AIR BAG DEPLOYED AND MY CAR HIT THE PARKED CAR SO HARD IT DROVE IT OVER A CONCRETE BARRIER OUT OF THE LOT. THE DAMAGE TO MY CAR ALONE WAS $10,000. THE OTHER CAR WAS DESTROYED. I HAVE HAD SUBARU CARS FOR 33 YEARS. THIS FORESTER WAS MY 8TH SUBARU. WHEN THE CAR ACCELERATED, I WAS THROWN BACK, MY FOOT WAS NOT ON THE BRAKE OR GAS PEDAL. THE CAR KEPT RUNNING AFTER THE ACCIDENT UNTIL I TURNED IT OFF. STATE FARM INSURANCE SENT A SAFETY DIRECTOR OVER TO CHECK THE CAR (AFTER IT WAS FIXED), THE BODY SHOP ALSO HAD AN INSPECTOR CHECK THE CODES ON THE COMPUTER. I GOT RID OF THE CAR EVEN THOUGH IT HAD IT HAVE 11 MONTHS ON THE LEASE BECAUSE I DID NOT TRUST IT. *TR

NHTSA ID
10496757
Incident
Dec 29, 2012
Mileage
10,300 mi
BrakesDriver assistance
Filed Nov 22, 2011

TL* THE CONTACT OWNS A 2011 SUBARU FORESTER. THE CONTACT STATED THAT SHE APPLIED THE BRAKES AT 20 MPH AND THE VEHICLE EXPERIENCED AN INCREASED STOPPING DISTANCE. THE CONTACT STATED THAT THE VEHICLE STOPPED APPROXIMATELY FIVE FEET BEYOND WHERE SHE INTENDED TO STOP. THE FAILURE RECURRED APPROXIMATELY TWO MONTHS LATER WHILE DRIVING AT A LOW SPEED. DURING THE SECOND FAILURE, THERE WAS AN INCREASE IN THE ENGINE RPMS. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 300 AND THE CURRENT MILEAGE WAS 2,500. THE CONSUMER STATED THE VIN WE HAVE IS INCORRECT. HOWEVER, SHE SUPPLIED THE CORRECT VIN TWICE, BUT IN ONCE CASE, THERE ARE TOO MANY NUMBERS AND THE SECOND CASE, THERE ARE NOT ENOUGH NUMBERS. UPDATED 02/06/12

NHTSA ID
10436755
Incident
Sep 1, 2011
Mileage
300 mi
Driver assistance
Filed Oct 4, 2011
Crash reported

TL* THE CONTACT OWNS A 2011 SUBARU FORESTER. THE CONTACT STATED THAT WHEN BRAKING WITH THE CRUISE CONTROL ACTIVATED, THE VEHICLE WOULD ABNORMALLY ACCELERATE. ON ONE OCCASION WHILE ATTEMPTING TO PARK THE VEHICLE, THERE WAS AN OCCURRENCE OF ABNORMAL ACCELERATION AND THE CONTACT CRASHED INTO THE FOUNDATION OF A BUILDING. THE CONTACT WAS NOT INJURED. THE POLICE WERE CONTACTED AND THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE MANUFACTURER WAS CONTACTED AND THEY OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 11,000.

NHTSA ID
10428425
Incident
Sep 19, 2011
Mileage
11,000 mi
Driver assistance
Filed May 11, 2011
Crash reported

TL*THE CONTACT OWNS A 2011 SUBARU FORESTER. THE CONTACT STATED THAT WHILE PARKING THE VEHICLE IT SUDDENLY ACCELERATED AND CRASHED INTO A CONCRETE WALL. THE VEHICLE WAS TAKEN TO THE DEALER WHO WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND STATED THAT THEY WOULD CONTACT HER AT A LATER DATE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 400.

NHTSA ID
10400001
Incident
Mar 19, 2011
Mileage
1,200 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

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Data sources

Data on this page last refreshed .