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 2012 Subaru Outback owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact's girlfriend owns a 2012 Subaru Outback. The contact stated that the vehicle hesitated while starting. In addition, the contact attempted to jumpstart the vehicle; however, the vehicle failed to start. The check engine warning light was intermittently illuminated. The contact stated that during rainy weather, several unknown warning lights were illuminated. The contact scanned the vehicle with an OBD2 scanner and retrieved DTC codes: P0420 (Catalytic convertor) and P0057 (Ignition System). The vehicle was taken to a local dealer to be diagnosed. The contact was informed that there were failures with the rear brake pads, rotors, PCV valve, valve cover gasket, engine air filter, catalytic converter heat shield; and a cylinder #4 misfire. The DTC codes P0304, and P0420 (Catalytic convertor) were also retrieved. …
On October 27, 2021 while driving the car a number of vehicle light began flashing. We checked every thing we could and proceeded to drive it home, approximately 47 miles. First thing on 10/28/2021 it was examined by a Subaru dealer service department and they found no issues other than they replaced the serpentine belt and a few light bulbs. The car was driven again on 1o/29/21 and 11/1/21 with no incident. On the way home from work on 11/3/21 the same vehicle lights began flashing. We checked everything we could and found nothing wrong. We began travelling home and about 25 miles into the trip we heard what sounded like metal clanking. Shortly thereafter we began to lose power and the engine started smoking. The engine compartment was on fire by the time we were on the side of the road so we exited the car. …
I own a 2012 Outback 2.5 Limited, which I purchased new from a Subaru dealer in Evanston IL in June 2012. It currently has about 76000 miles on it. In the last 6 months my car started to shudder when coming to a stop at a traffic signal, or sometimes while being stopped at the signal. The shudder is significant but typically momentary and happens randomly. From the last 2-3 weeks, the car has started to stall and the engine shuts down abruptly when coming to a stop. This is very stressful, but fortunately, so far I have been able to put the car in P and start it again every time. However, this is very dangerous and puts me and my family at grave risk of a serious accident from cars coming from behind as my car stalls abruptly. Again, this happens randomly which makes it even more dangerous and impossible to mitigate as a driver. …
When driving normally on the road the car begins to flash the following lights in the dash( Engine check, Oil Temp Light, Brakes, ABS, Traction control light, airbag light, passenger airbag light indicator) the car continues to drive normally but I cannot know that for certain when almost every indicator light is flashing, I have had the car inspected at a Subaru dealer 4 times since last year for other repairs in which they indicated a detailed inspection of all components following the repairs( radiator, ABS module, Transmission Maintenance, Differential Maintenance, Brake Fluid flush,), spent roughly 6,000$ in repairs and nothing was ever mentioned about this issue, if an inspection was done how could they not find an electrical error.This has happened twice in 3 months I do not feel safe driving a car that cannot properly indicate what internal issues are happening. …
No issues with the car since I bought it new and was dedicated to regular Maintenance. Less than a week after a regular scheduled oil change and driving on the main interstate highway cruising at 65mph, the car just suddenly jerked. I thought I had blown a tire but the Brake light came on and then soon after the engine light came on. I was able to get off the highway but the acceleration decreased to a slow crawl. I had it towed to the nearest Subaru dealership that morning in which they said the issue is that both 1 and 4 are not correctly firing. They checked the spark plugs and checked the injector, but both did not fix the issue. They have now told me that they need to get the engine pistons/valves "machined". …
This summer, my 2012 Subaru Outback began shuddering and stalling when slowing down. This has happened approaching stop signs and stop lights, but has also happened going up steep hills and on the highway as traffic slows. Cars behind me have gotten incredibly close, and it seems only a matter of time before an accident occurs. We brought the car to the mechanic, who told us it was the torque converter, which would cost upwards of $5000 to replace. Subaru extended the warranty on 2010 - 2015 Outbacks because of the faulty torque converter - but the warranty expires at 100,000 miles, which we've surpassed. I'm not sure how this works - the manufacturer had a defect but we're responsible? It's scary when the car stalls out and I'm not sure it's safe to continue driving the vehicle. Our mechanic said the issue would get worse over time.
Vehicle stalls when stopping. This is a huge safety issue because stalling at intersections can cause accidents. Dealership diagnosed a faulty torque converter. This torque converter (it should be part number 31100AB170) issue is widely known in this production series of the Subaru outback. After hundreds of complaints were filed with the NHTSA, Subaru extended the warranty on all their automatic transmissions to avoid a recall around 2017, but closed the extended warranty in 2022. Subaru now tries to convince their customers that these vehicles are too old for the issue to be attributable to them, despite knowing that they equipped these vehicles with defective parts. See the following: [redacted]
1. Over the past months at different times the dashboard lights all start flashing the check engine cruise control breaks Flash on and off 2. Our safety's at risk because we don't know if the engine is needing repair or if it's an electrical problem or if the car's just gonna stop dead 3. We took the car in and they charged me $1500 for a new fan coil and it's still doing it 4. Yes there were many warning lights it has been happening for the past year and I've taken it in twice and it's still happening and now they're saying they have to replace the engine strap which is another $3000 this is ridiculous
Coming to a stop, not super hard at a turn light. the engine just died! all the lights started flashing so I put the car in park and tried to not freak out. Turned the key off and tried to restart right away and it didn't work, gave it another minute then it started up again, no light on or flashing what the heck. Like nothing just happened, omg my heart was beating and I was shaken up. They need to fix this! this is very dangerous and nerve racking I'm afraid to drive it now because you don't know when this is happing again or not.
The engine shuts off while driving, especially when switching gears or when braking too hard (such as when traffic ahead suddenly stops). I had the engine shut off while I was making a left turn at an intersection and lost control abilities of the steering wheel.
Engine complaints in other Outback years
Frequently asked questions
How common are engine problems on the 2012 Subaru Outback?
NHTSA has 52 complaints about the engine & cooling of the 2012 Subaru Outback, 18% of the model year's 294 complaints. The component named most often is exhaust system › emission control › catalytic convertor (1 mentions).
Is there a recall for 2012 Subaru Outback engine problems?
No. NHTSA lists no engine & cooling recall for the 2012 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 2012 Subaru Outback engine problems start?
Half of the complaints with a recorded mileage happened before about 114,000 miles, and 6% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 3 fires and 0 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.