Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2011 Subaru Outback owners, lightly cleaned up (personal details are redacted by NHTSA).
Purchased my 2011 Subaru Outback 3.6R Limited from the dealership, new. Since 2013, the Subaru dealer has discovered multiple oil leaks, replaced the head gaskets 3 times, thermostat 4 times, the alternator 3 times, timing belt 4 times, radiator 3 times, starter once, and my HVAC system twice...all due to my engine seizing multiple times while driving on freeways. No warning lights, just the engine seizing suddenly. This caused a few minor bumper accidents on the freeways because of these incidents. Nothing was reported because no one was injured. Last year the engine was replaced with a used/refurbished one by the dealership. In less than 11 months after this engine was replaced, the dealership states I'm having multiple oil leaks again, most originating from the cam carrier. Now, my engine is struggling on slight grades. …
The contact owns a 2011 Subaru Outback. The contact stated while driving at an undisclosed speed and attempting to slow down, the vehicle inadvertently stalled. The contact was able to restart the vehicle while the vehicle was still in motion, and the vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 153,000.
Coolant leak, steering power fluid leak, break pad leak, gasoline line leak, seat heater, clicking noise after turning off car, leaking seats and rear view mirror also leaking, steering wheel expanding due to possible air bag, heater and ac vents lose and also chemical smell/gas/coolant coming from front and back of car, sunroof not secured. Every wiring wet, charger port in middle compartment wet when plugging something in. Everything auto does not work. Car sounds like something is constantly leaking air or gas somewhere, even when off. My safety was at risk by having severe chemical burns on my skin everywhere, hair falling out due to exposure, almost passing out while driving due to inhaling components, low visibility due to auto dimming in rear view and side mirrors. The problem has not been confirmed due to me being in a financial bind at the moment. …
My car just dies on it's own while driving and it has trouble starting back up or somedays it just won't start up but after it dies while going down the road but after cranking it a few times it finally starts the check engine light comes on the traction control light starts flashing the brake light starts flashing and the cruise control light starts flashing I took it to a dealer and no codes were thrown in my car and after a few days of all the lights on and flashing they suddenly go away on their own this is extremely dangerous I can't control when or where this happens on the road I've almost been hit several times from this happening it does the exact same thing when I'm sitting still in park trying to start my car I get all the lights on the dashboard lit up and blinking on and off just like when it dies going down the road but nobody can find a cause or a reason why they say it's …
The car got overheated on 8/20/2022, because of the mechanical and design issue, specifically the coolant pipe and hose connection which got disconnected and blew up with force ejecting hot coolant liquid. The incident almost killed my husband. The hot liquid burned his abdomen and my face. He got transported by an ambulance, got admitted to a hospital, and got a 2nd-degree burner. This entire incident endangered my entire family members while we were far from home on a road trip adventure. My kids are under 10, and they were worried and crying. The incident definitely was reproducible, because, within a 3 hours window, the hose got disconnected 4 times, where the 4th time it hit my husband and me. A Yosemite Park Ranger was helping us inspect the car on the 3rd and 4th failure. For our safety, we have not been driving the car since 8/21/2022. …
When I came to a stop at a light, the car stalled and the engine turned off. It was just as if I was driving a manual transmission and didn't put the clutch down while in gear. I spoke with my husband about the issue and he told me it has been happening for several months now. I have researched it a but snd found that Subaru is aware of the issue and has not offered any recall for the issue but offered an extended warranty. This is not helpful when you are the 2nd owner of a vehicle. Being stuck with a car that turns off upon stopping is a dangeous situation. Subaru should be made to recall these cars and fix the issue. According to this article, it is a problem with the lock type torque converter. [redacted]
While driving the car and stepping on the breaks really to avoid something in the road, the engine stalls and loses power requiring the driver to turn the key and restart the vehicle. My safety is a risk because if this happens on the street or highway with other vehicles around it could cause a major accident. This issue has not been confirmed by a dealer or independent service however, a call to my local dealership confirmed they have heard of this issue in the past and suggested it was the torque converter. The vehicle has not been inspected by the manufacturer, police, insurance or others. There were no warning lamps or any other indicators of this issue prior to the issue. They first started to appear a few years after owning the vehicle.
Vehicle engine/transmission/torque converter dies when coming to a stop. This is especially an issue when having to stop suddenly and get going again quickly as the vehicle has to be put in neutral, restarted, and put back in drive. It is a safety issue at traffic lights, traffic signals, and in stop and go traffic that has resulted in a multitude of near-miss rear end collisions that put my life and my families lives in danger. There is a service bulletin from Subaru (Bulletin Number: 16-90-13R; Revised: 02/15/18) that addresses a similar issue, but fails to mention the vehicle engine dying and the inherent safety issues that comes with the engine shutting off.
The manufacturer, Subaru, admitted they have an issue with the ECU setting false error codes (P0128) when they issued a TSB, # 11-102-11R, calling for a software upgrade to fix the problem. This is an emissions related issue, in that it turns on various warning lights, including the SES light, making the car impossible to pass the routine smog check. So why should I, the owner, be required to pay the dealer to update the software for a problem Subaru has admittedly identified as a manufacturer error?
The front lower subframe cracked where the driver's side front wheel attaches to it in our 2011 Subaru Outback. This resulted in loss of steering control of vehicle. The issue has been confirmed by independent mechanic. Vehicle has not been inspected by manufacturer, police, or insurance agent. It is available for inspection at [redacted]. There were no warning lights when this failure occurred.
Engine complaints in other Outback years
Frequently asked questions
How common are engine problems on the 2011 Subaru Outback?
NHTSA has 93 complaints about the engine & cooling of the 2011 Subaru Outback, 14% of the model year's 652 complaints. The component named most often is engine (1 mentions).
Is there a recall for 2011 Subaru Outback engine problems?
No. NHTSA lists no engine & cooling recall for the 2011 Subaru Outback, though it has 16 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2011 Subaru Outback engine problems start?
Half of the complaints with a recorded mileage happened before about 100,000 miles, and 15% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 1 fire and 2 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.