general problems of the 2010 Subaru Legacy

13 problems related to engine and engine cooling have been reported for the 2010 Subaru Legacy. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 Subaru Legacy based on all problems reported for the 2010 Legacy.

1 Engine And Engine Cooling problem

Failure Date: 07/14/2022

Head gasket keeps getting blown not only that overheats after fixtures with the radiator pressure not flowing normal car been fixed more 4 times for radiator issue and now at the shop for the second time for head gasket blown and radiator issue what can I do to this point car has turned off on me on the high way due to overheating and I had to react fast in order to avoid accident.

2 Engine And Engine Cooling problem

Failure Date: 05/01/2022

I’m having an issue with my vehicle stalling when I brake and when I come to a stop slowly or on an incline. I haven’t had it tested at a dealership but I have read about the issue among other Subaru owners stating it is possible the torque converter in the cvt and that Subaru isn’t recalling it. I see this as a major safety concern for myself and others on the road due to its stalling out at a stop or on an incline.

3 Engine And Engine Cooling problem

Failure Date: 04/11/2022

Three identical instances. 1. Was driving down road came to stop light pushed brakes and car stalled out. 2. Was approaching roundabout pushed brakes to wait for traffic and car stalled out. 3. Was on incline at stop pressing brakes, went to push gas and car stalled out. In each instance the car dies completely. You have to take key out, put back in and turn on the vehicle again.

4 Engine And Engine Cooling problem

Failure Date: 04/04/2022

Subaru refuses to do a recall for their cvt transmission issue even though this is a know issue with the 2010-2012 Legacy. The car stalls when coming to a stop. Subaru never informed their owners of an issue and now refuse to pay for any repairs, if this was to become a recall then they would be required to pay for the repairs, and then there would be less unsafe vehicles on the road.

5 Engine And Engine Cooling problem

Failure Date: 03/29/2022

1. When coming to a stop the vehicle will shudder and stall. Vehicle drives fine until slowing down to and then will sometimes shudder and stall. 2. The car stalling when slowing down others drivers can hit you as they do not expect you to come to a complete stop. 3. I am taking the car to the dealer tomorrow. 4. I have notified the dealer of the issue and I have found two bulletins from the manufacture regarding this issue, which I found from other people who have complained of the same exact problem with their make of vehicle 5. No warning lights came on, I would slow down for a stop sign and before even stopping the car shudders and stalls, I have to put the car in park to start the and the car so far has started.

6 Engine And Engine Cooling problem

Failure Date: 03/29/2022

1. Car stalls when slowing down 2. Safety issue dealer has listed as torque issue and as safety issue 3. Dealer has vehicle now and report say torque issue with cvt 4. By delaer 5. No lights, car stalls when slowing down.

7 Engine And Engine Cooling problem

Failure Date: 07/19/2021

The contact owns a 2010 Subaru Legacy. The contact stated while driving 25 mph, the traction control, transmission overheating, service brakes, and check engine warning lights were illuminated. There was an abnormal bubbling sound coming from the engine compartment. The vehicle was taken to the dealer however, a cause for the failure was not found. The dealer informed her that the vehicle was drivable. The manufacturer was not made aware of the failure. The failure mileage was 170,918.

8 Engine And Engine Cooling problem

Failure Date: 06/15/2021

The cvt transmission has a known problem where the torque converter causes stalling. This issue is well documented on Subaru forums. I took my vehicle to Subaru about the problem and they said the fix for the stalling is to replace the torque converter. , it is not yet covered for a recall despite being such a large issue with these vehicles.

9 Engine And Engine Cooling problem

Failure Date: 03/25/2019

The contact owns a 2010 Subaru Legacy. The contact stated while driving at 50 mph, the emergency brake warning light, traction control, oil pressure warning light, and the cruise control warning light illuminated. The contact veered to the side of the road. The vehicle was towed to the contact's residence. The vehicle was then towed to an unknown dealer where it was diagnosed that the transmission valve body had failed. The vehicle was repaired; however, the failure reoccurred a week later. The vehicle was taken back to the dealer where it was diagnosed with an unknown electrical failure. The vehicle was repaired; however, the failure reoccurred less than a week later. The vehicle was taken back to the same dealer who advised the contact to turn off the vehicle, disconnect the battery for 5 minutes, and to then restart the vehicle. The contact followed the instructions however, the failure persisted and the check engine warning light illuminated. The vehicle was taken to an independent mechanic where the gas cap was replaced; however, the failure reoccurred. The vehicle was not repaired. The manufacturer was notified of the failure but did not provide any assistance. The failure mileage was approximately 115,000.

10 Engine And Engine Cooling problem

Failure Date: 07/20/2016

On the 2010 Subaru Legacy 2. 5gt the under hood emissions label shows a misprint. The label includes the word "air" indicating that the vehicle should have a emissions related air pump. The vehicle does not! this was apparently updated on the 2012 models but not the 2010. This error on Subaru's part is causing me to fail California's emissions test. I now have to visit a referee because of this error.

11 Engine And Engine Cooling problem

Failure Date: 03/03/2015

I parked my car after traveling about 100 miles. I was sitting still with the engine running. I have a manual (6 speed) transmission, and the car was in reverse, but the clutch was in all the way and my foot was off the accelerator and on the brake. Suddenly, without any warning, I heard a noise and the engine quickly started to rev and the tachometer went all the way to the red line. After I recovered from the surprise, I tried to kick off the engine by depressing the accelerator quickly and releasing it. My action had no effect. I then turned the engine off with the key and it cut off. I have driven the car today and not had any recurrence of this nor have I had any instance of this type prior to last night.

12 Engine And Engine Cooling problem

Failure Date: 12/07/2014

I had a major safety issue with my 2010 Subaru Legacy while driving on the freeway. The car was doing approximately 50 mph and I accelerated to change lanes and all of a sudden the car lost all power and eventually came to a complete halt right in the middle of fast moving traffic. I turned on my hazard light, put the car to park and restarted. The car would start but would shut down slowly in the next 2-3 seconds even before I could put it to drive and accelerate. I noticed that all the lights in the dash like traction control, check engine, etc all lit up and the car just slowly died. After trying it one more time (with same results) I shut off the car completely and started calling aaa for towing. After about a minute when I tried to re-start the car, it sprang up to life normally (I. E. Without a slow shut-down like the prior two times) and accelerated when I put it to drive like nothing had happened. I was then able to get off the freeway for safety and popped the hood to see if there was anything on the surface that I could find wrong. Everything looked fine, I was even able to get back home all on the freeway normally. I tried to stay on the the right lane and simulate the same (I. E. Doing decent speed and then accelerating), but everything was normal. Sunday being mandatory dealership closures in NJ I was not able to bring it to the dealership. The whole incident was completely random and was needless to say extremely dangerous and stressful. I have contacted Subaru of America and waiting for their response. In the interim I wanted to post this to NHTSA in case other such incidents have been reported.

13 Engine And Engine Cooling problem

Failure Date: 11/19/2014

On Wednesday, November 19, 2014 my son left for work at his usual time and started the Subaru. Immediately, the engine roared at full throttle, and the vehicle took off down the street, where it jumped the curb and crashed into a tree at 45 mph. Distance traveled was less than 400 feet from where it started. Based on an eyewitness account, it is presumed that the vehicle suffered an unintended acceleration mechanical issue outside of the driver's control. Emergency service personnel arrived within minutes, and he was taken to the major metro-area 833 bed hospital (level 1 trauma center) where he was admitted to critical care. He died peacefully and without pain on Wednesday afternoon, November 26, 2014, at age 37. Subaru of America was notified of this incident on Friday, November 21, 2014; a detailed description, police crash report, and 18 pictures were provided, with a request for them to inspect the totaled vehicle and download available information from the black box recorder/event data recorder. (note: as of today, November 29, 2014 no action has been taken).



Safety Ratings of Legacy Cars
Fuel Economy of Legacy Vehicles
Legacy Service Bulletins
Legacy Safety Recalls
Legacy Defect Investigations