10.0

really awful
Crashes / Fires:
11 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
21,562 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2011 Subaru Forester engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2011 Subaru Forester:

Unsubscribe any time. We don't sell/share your email.

2011 Subaru Forester Owner Comments

problem #13

Aug 142023

Forester

  • miles

A D V E R T I S E M E N T S

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?

- Newton, MA, USA

problem #12

Jun 062022

Forester

  • miles
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.

- Seattle, WA, USA

problem #11

Jan 262021

Forester

  • 100,000 miles
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.

- First Town, LA, USA

problem #10

Aug 152019

Forester 4-cyl

  • 54,000 miles

A D V E R T I S E M E N T S

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.

- Libertyville, IL, USA

problem #9

Sep 082014

Forester

  • miles
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.

- Timonium, MD, USA

problem #8

Aug 082013

Forester

  • 22,000 miles
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.

- Pleasantville, NY, USA

problem #7

Jan 312014

Forester 4-cyl

  • 23,500 miles

A D V E R T I S E M E N T S

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.

- Hooksett, NH, USA

problem #6

May 172013

Forester 4-cyl

  • 28,000 miles
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.

- Bellmore, NY, USA

problem #5

Jun 292013

Forester 4-cyl

  • 30,000 miles
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.

- Amesville, OH, USA

problem #4

Dec 292012

Forester

  • 10,300 miles
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.

- Cape Coral, FL, USA

problem #3

Sep 012011

Forester 4-cyl

  • Automatic transmission
  • 300 miles

A D V E R T I S E M E N T S

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

- Goose Creek, SC, USA

problem #2

Sep 192011

Forester

  • 11,000 miles
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.

- Belmont, MA, USA

problem #1

Mar 192011

Forester

  • 1,200 miles
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.

- San Marcos, CA, USA

Not what you are looking for?