Problems · by component

2012 Subaru Legacy power train problems

34 owner complaints to NHTSA about the 2012 Subaru Legacy cite power train, 38% of all 90 complaints for this model year.

Complaints
34
38% of all complaints
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the power train

Verbatim from NHTSA complaints, newest first
“My 2012 Subaru Legacy experiences involuntary engine stalling when coming to a quick stop, such as in stop-and-go traffic or during sudden braking at intersections. When the engine shuts off without warning, power steering and braking assist are lost, creating a serious risk of collision. This is a known issue documented by Subaru of America in Technical Service Bulletin 16-90-13R, applicable to 2010–2012 Legacy and Outback vehicles with CVT transmissions. Subaru attributes the condition to excessive thrust washer wear inside the torque converter, which prevents proper release of lock-up clutch pressure. Subaru describes the condition as similar to stopping a manual transmission vehicle without depressing the clutch, which inherently results in engine stalling. Subaru later redesigned the torque converter as a countermeasure beginning in October 2013, indicating prior knowledge of a defect. However, Subaru never issued a recall or notified owners and addressed the issue only through a non-customer-facing service bulletin. I contacted Subaru Customer Advocacy to report this safety concern and request assistance with the repair (quoted over $4,000). Subaru…”
Owner complaint to NHTSAFiled Dec 23, 2025Power train, EngineODI 11706789
“CVT transmission issues persist beyond the limited warranty extension that has now expired from Subaru. Vehicle RPMs regularly drop from 1000 to 500 when coming to a stop, causing engine to knock as it tries to stall. Vehicle then occasionally hesitates when attempting to move under power. Knocking and near stalling occasionally results in a sensation of vehicle being hit from behind while stopped with vehicle in drive and brakes applied.”
Owner complaint to NHTSAFiled Jun 20, 2023Power trainODI 11528026
“Faulty torque converter. The car will unexpectedly turn off when coming to a fast, sudden stop. The 1st time it happened, I was in a left-hand turn lane and didn't realize my car had turned off and I had to quickly restart it to complete the turn. A transmission repair shop confirmed that the torque converter and valve body would need to be replaced. No warning lights, messages or other symptoms appeared before the incident. There is a safety bulletin from Subaru on this issue but because my car has a salvage title, it would need to escalate to a recall in order for Subaru to complete the repair free of charge”
Owner complaint to NHTSAFiled Mar 25, 2023Power trainODI 11513708
“The vehicle will on occasion stall when coming to a complete stop. It is a known issue that has a service bulletin. Has something to do with the internals of the torque converter failing. Depending on where the vehicle stalls this could create a serious safety concern. Happens more when the vehicle is cold.”
Owner complaint to NHTSAFiled Jan 15, 2023Power trainODI 11501897
“Please see ODI#11486236 & request # 562681 “ part 1” I wrote complaining about a 2012 Subaru Legacy Torque Converter issue. It was “ out of warranty 7/31/22 or 100k miles. At the time it started stalling it was at 103k miles in August 2022! I did not feel comfortable driving it. On 10/19/22 My mechanic drove my car & it shuddered & stalled at intersections for him also. I did not feel comfortable driving it 25 miles to a Subaru dealer to have them check it, diagnose it & repair it. My mechanic replaced the Torque Converter as well as the appropriate fluids. It cost about $1500 for parts & labor. Since this is a FAULTY part installed prior to purchase I feel Subaru needs to recall all these vehicles affected. I emailed you MULTIPLE emails online re: multiple complaints about this faulty part which causes a dangerous situation stalling at lights & intersections requiring one to stop & start. I was almost broadsided a few times. Subaru should do the right thing and recall all vehicles involved & your Agency should do the right thing & demand it for the safety of the public.”
Owner complaint to NHTSAFiled Oct 24, 2022Power train, Unknown or other, EngineODI 11490689
“In August & September 2022 , 4 times I was stopping at stop signs & red lights and my car shuttered & stalled. No warning lights showed on the dashboard. I contacted my mechanic & he said he was aware of this issue on certain Subarus, possibly a Torque Converter defect but thought there was an extended warranty & I should look into it. My car was purchased 7/30/12 & had 103,000 miles on it when this issue started in August. I wrote to Subaru of America explaining the problem. They told me that my car was out of the “warranty” since it expired at 100,000 miles OR on 7/31/22. They said I’d need to take my car to a Dealer & have them diagnose the car, & if it was this issue then it would be reviewed to see if they would offer any “good will assistance”. After reading many blogs I’m noticing many Subaru owners complaining of similar dangerous stalls. Why hasn’t Subaru been forced to recall all these vehicles? This is a dangerous situation. I also read an article in FORBES MAGAZINE From 2017 by Chris Jensen that Subaru was allowed to offer extended warranty on this faulty transmission part instead of a recall being issued. I. Don’t understand how you can overlook…”
Owner complaint to NHTSAFiled Sep 24, 2022Power train, EngineODI 11486236

Showing 6 of 34 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.