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Engine & cooling

Subaru Outback Engine problems by year

997 complaints filed with NHTSA about the Subaru Outback's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Engine complaints by model year

YearEngine complaintsCrashesInjuriesRecalls
20256000
20231100
202224101
202123100
202052310
201940410
201837100
201744100
201655250
201550220
201436100
201368100
201252000
201193220
201067211
200919010
200820100
200718000
200651000
200526000
200415100
200320001
200225110
200122100
200038000
199923000
199839000
199724000
19969000

Engine recalls

Latest Outback engine complaints

2016 Subaru OutbackEngine & cooling

I am submitting this complaint concerning a failure of the front exhaust assembly on my 2016 Subaru Outback 2.5L. the dealership diagnosed a leak at the exhaust bellows in the front exhaust assembly and recommended replacing the assembly. I proceeded with the repair at a cost exceeding $3,000. I subsequently learned of Subaru Service Campaign WUJ-95, which addresses cracking of the bellows in the front exhaust pipe, including the catalytic converter, on certain 2015-2016 Subaru Legacy and Outback 2.5L vehicles. ...

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Subaru has informed me that my vehicle's VIN is not included in the campaign. However, the component and type of failure described in the campaign appear relevant to the failure experienced by my vehicle. I contacted Subaru of America Customer Advocacy and requested an explanation of the technical distinction between the condition addressed by WUJ-95 and the failure diagnosed in my vehicle. Subaru declined to compare the conditions and denied my request for goodwill assistance or reimbursement. The company considers its review complete. I recognize that my vehicle's failure does not automatically establish that it qualifies for the existing campaign. However, I am concerned that a similar failure of the front exhaust bellows occurred in a vehicle of the same model year and engine type. I respectfully request that NHTSA review this report in conjunction with other complaints and available technical information to determine whether the failure warrants further examination, including whether it may affect emissions performance or present other safety concerns.

Filed Incident EngineNHTSA 11775219
2020 Subaru OutbackEngine & cooling

Subaru dealer service tech reporting upper oil pan leak. The repair requires engine removal to gain access to the upper oil pan, which is a very costly repair. My concern, does the leaking oil get onto the hot exhaust system create a fire risk.

Filed Incident EngineNHTSA 11774781
2017 Subaru OutbackSteeringElectrical systemEngine & cooling

On Sunday, [[redacted]], I was driving my 2017 Subaru Outback 3.6R Touring after leaving the [[redacted]]. After I had merged onto [[redacted]] and immediately before the first roundabout under [[redacted]], the vehicle emitted three warning beeps, numerous dashboard warning lights illuminated, and the engine began running roughly. I was traveling approximately 31 mph when the warnings began. While attempting to reach a safe place to stop, I entered the roundabout beneath [[redacted]]. At approximately 7 mph, the...

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electronic power-steering assistance stopped functioning, making the vehicle extremely difficult to steer. I was able to exit the roundabout and pull into a parking lot without a collision. I turned the vehicle off, waited approximately five minutes, and restarted it. The warning lights were no longer illuminated. Diagnostic information later reviewed by Grand Junction Subaru documented that the vehicle's electrical voltage had dropped to 8.6 volts during the incident. The dealership could not reproduce the event or conclusively identify its cause. Although the original alternator reportedly tested normal, the dealership reprogrammed the ECU/ECM, disabled the DCM, and replaced the alternator. Because the root cause remains unconfirmed, I am concerned that the sudden low-voltage condition and loss of steering assistance could recur at highway speed. Because [[redacted]] and the two-lane roundabout are very busy, I felt that my life was in danger. As I continued through the roundabout, there was a Ford Platinum 3/4 ton truck next to me. If he would not have been paying attention, I feel like there would have been a collision and possibly personal injury to myself. I'm glad that this incident happened at a lower rate of speed but I am concerned that it will happen again and maybe the next time while I'm on the highway traveling at highway speeds. It could be fatal to and others. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Incident Steering · Electrical system · EngineNHTSA 11771631
2020 Subaru OutbackTransmission & drivetrainEngine & cooling

I have a 2020 Subaru Outback with just over 70,000 miles on it. Well before hitting 70,000 miles, there were two occasions where a loud, unusual noise occurred while reversing out of my garage. Additionally, I occasionally hear a strange noise when shifting into Reverse from Park. I also sometimes notice a whining or humming sound when accelerating from a complete stop, such as at a traffic light. Regarding the two loud noises I experienced, I have saved an audio file recorded by another consumer who posted it...

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online describing the exact same issue - the sound is identical to what my car produced on those two occasions. The audio file is available upon request and may assist in diagnosing the issue. Please note that the date I provided for when the noise first occurred is approximate, as I cannot recall the exact date. Since the noise occurs most frequently during reverse, I am concerned there may be an issue with the CVT transmission.

Filed Incident Power train · EngineNHTSA 11771215
2022 Subaru OutbackElectrical systemEngine & cooling

My Subaru often stalls when the start-stop function is happening such as when I stop at a traffic light. When I lift my foot off the break, the engine tries to restart, but stalls out. It happens at almost every stop. I had my battery tested and it is fine. This week, the car actually completely stalled out in heavy traffic and I had to put it in park and restart it.

Filed Incident Electrical system · Unknown or other · EngineNHTSA 11769442
2022 Subaru OutbackEngine & cooling

Catastrophic motor failure at highway speed. I had just come of the Interstate 10 and stopped at the end of the off ramp. I made a right turn on to a 2 lane county highway and accelerated back up to 65MPH. As I attained speed, the vehicle lost power. The accelerator pedal was dead and the vehicle did not respond to my input. The oil pressure warning light illuminated, power surged back and was immediately lost again with dead pedal again. The vehicle would not respond to my input to accelerate and effected my...

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ability to control it safely. I had to abruptly pull to the should and coast to a stop. Loud engine knock immediately occurred indicating catastrophic motor failure. The vehicle was immobilized and needed to be towed. I was fortunate the instant motor failure did not occur while attempting to pass another vehicle or any other maneuvers where I needed the vehicle to respond and move out of the way instantly.

Filed Incident EngineNHTSA 11768004
2018 Subaru OutbackEngine & cooling

The car started to make very loud engine noises and then the engine completely failed. The car was no longer able to accelerate and lost the ability to go in both forward and reverse. Luckily, my son had just arrived home when the car completely lost power, but it began to have acceleration issues as he was driving home. No warning lights came on until after the car had completely failed. Less than a week prior to the incident, the car had an oil change and inspection by the dealership and no issues of concern were noted. The car was towed to the dealer. The technician said that the oil contained metal shavings, indicated an engine block failure.

Filed Incident EngineNHTSA 11763630
2021 Subaru OutbackTransmission & drivetrainEngine & cooling

Good Day! I bought my 2021 Subaru Outback XT Onyx in Jan 2021. I had waiting 6 yrs for Subaru to use the Turbo Motor in the Outback again. I've had this car for 5 years with my warranty running out Jan 2026, but I only drive 5000-7000 miles per/yr. Current odometer is 29,901 miles. At my most recent oil change service at the Dealer, they showed me a video of my cars drivetrain from underneath. There were two bad seal leaks. One at the transmission pump housing and the other at the Upper Oil Pan. I had been there...

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for an oil change a year earlier for the same service and there was no mention of these issues! After speaking with the service advisor, he said to call Subaru Customer Advocates. They listened to my situation and a few days later offered a $1400 credit for a $4000 job that involves the removal of my cars engine (upper oil pan) to replace it because it's bolted to the frame there. The other leak seal involves dropping the transmission. These are major repairs that following will dampen my ownership experience after decades of Subaru praise by Americans. I researched this issue online and found out there was a manufacturing defective regarding the silicone liquid seals they used for 2020-2022 Outback, Ascent, & WRX! This procedure was used throughout the driveline with the Turbo Motor & CTV Trans. There are 1000s of accounts of this defect placing burden on the owners of these cars who bought them in good faith. I did the research, called the dealer & Subaru with the discovery & overall complaint! I asked for 80% to 100% help with these repairs because how many more will I have to deal with after these two are repaired??? I have received zero responses from either after expressing that this was a known defect, Bullitens went to all the dealers, nothing was mentioned to the owners, and they've just covered those cars still under warranty. Since I didn't drive enough, the seal issues on my car took longer to start leaking, and then out of warranty. HELP!

Filed Incident Power train · EngineNHTSA 11758285
2020 Subaru OutbackEngine & cooling

The contact owns a 2020 Subaru Outback. The contact stated that on various occasions upon bringing the vehicle to a stop or upon acceleration the vehicle had experienced a total loss of automotive power, and all of the warning lights would remain illuminated. The vehicle was taken to a local dealer where it diagnosed and the contact was advised that the battery, and thermal valve were faulty and needed to be replaced. The battery had been replaced five times however the contact noted that the failure persisted. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 19,000.

Filed Incident EngineNHTSA 11757956
2022 Subaru OutbackElectrical systemEngine & coolingFuel system

My 2022 Subaru Outback Premium has had repeated intermittent stall/no-start events. The exact failed component is UNKNOWN, but the issue appears related to the fuel system, engine control, electrical system, or heat-related sensor/relay failure. The vehicle is available for inspection upon request. The first event occurred while parked: the engine shut off/would not start, while the dashboard and screen remained powered. After about 30 minutes, it started again. A later event occurred while driving: the engine...

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suddenly shut off, but the dashboard and infotainment screen stayed on. I could not restart the engine for about 10 minutes. When it restarted, the vehicle would not accelerate past about 30 mph, suggesting reduced-power/limp mode. This created a serious safety risk because the vehicle lost motive power while in traffic. The vehicle was taken to a Subaru dealership. The dealer diagnosed the high-pressure fuel pump as failing and replaced it under the powertrain warranty. About one month later, the same issue occurred again while parked: the vehicle shut off, all dashboard warning lights illuminated, and it took several minutes before it would restart. The dealer then stated the battery was weak and replaced the battery. The new battery tested good after replacement. One week later, the issue returned again. A consistent pattern is that the problem occurs when it is hot outside and the vehicle has been running for more than one hour. The vehicle has been inspected by a Subaru dealership multiple times. The problem has not been reliably reproduced by the dealer, but the dealer previously confirmed a failing high-pressure fuel pump and later a weak battery. Warning lamps appeared at the time of failure, including multiple dashboard lights/check engine-type warnings after the engine shut off. There were no consistent warning messages before the stall/no-start events.

Filed Incident Electrical system · Engine · Fuel / propulsion systemNHTSA 11757581
2025 Subaru OutbackEngine & coolingFuel systemFire

NHTSA Complaint Narrative - Draft On July 9, 2026, in the evening, my leased 2026 Subaru Outback Touring caught fire while we were driving home. We were stopped in a left-turn lane waiting on a left-turn signal. When the light turned, the vehicle in front of us moved forward - which, in hindsight, was fortunate, because molten metal was sprayed across that exact spot moments later. The engine effectively exploded, throwing molten metal from the melted hood and engine components into the air around the car. We...

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exited the vehicle immediately, leaving it burning in the left-turn lane. The fire department, based only about half a mile away, arrived within approximately 4 minutes, but it still took them roughly 35 minutes to fully extinguish the fire given its intensity. The vehicle had just been returned that day (or very recently) from a 3.5-week internal engine repair at the dealership. This was the third time I had reported the same underlying engine problem to Subaru - the recent lengthy repair was the first real attempt by the dealer to address it, and it failed within days of the vehicle being returned to me. My spouse and I were in the car moments before the explosion. Had we been delayed even briefly - for example, had the car ahead of us not moved forward when it did - we believe we could have been seriously injured or killed by the explosion and flying molten debris. The vehicle was a total loss. I am filing this complaint because: This was the third report of the same engine issue prior to the fire, indicating a recurring, unresolved defect rather than an isolated incident. The failure occurred immediately after a dealership repair specifically intended to fix this problem, suggesting the underlying defect was not - or could not be - properly corrected. The nature of the failure (explosive engine fire while driving, throwing molten metal across an active traffic lane) presents a serious risk of injury or death to occupants, other drivers, and bystanders

Filed Incident Engine · Fuel / propulsion systemNHTSA 11755608
2025 Subaru OutbackElectrical systemEngine & cooling

The contact owns a 2025 Subaru Outback. The contact stated that the vehicle failed to start while attempting to start it. There were no warning lights illuminated. A tow truck company successfully jump-started the vehicle, and the vehicle was towed to the local dealer. The dealer was unable to duplicate the failure. The contact returned to retrieve the vehicle, and the key fob failed to operate, and the vehicle failed to start. The dealer provided a loaner vehicle. There was no indication that the battery had...

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failed; however, the dealer replaced the battery. The dealer had not yet determined the cause of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was approximately 10,000.

Filed Incident Electrical system · EngineNHTSA 11753796
2022 Subaru OutbackElectrical systemEngine & cooling

The contact owns a 2022 Subaru Outback. The contact stated that while driving at an undisclosed speed and making a left turn, the message "EyeSight Disabling" was displayed. No warning light was illuminated. The vehicle then lost motive power and was unable to restart. The contact called 911, and two bystanders assisted in pushing the vehicle to a Jiffy Lube. The vehicle was towed to the dealer, who determined that the battery had failed and needed to be replaced. The vehicle was not repaired. Upon research, the contact associated the failure with the engine. The manufacturer was made aware of the failure. The failure mileage was approximately 58,000.

Filed Incident Electrical system · EngineNHTSA 11752666
2020 Subaru OutbackWheels & tiresEngine & coolingFuel system

The warning lights on our 2020 Subaru Outback have lit intermittently for the past 2 years. When bringing the vehicle into the dealer for service and oil changes, this was reported. Recently the TPMS light began to light intermittently. Tire pressure was checked and adjusted but the problem persisted. When we brought the vehicle in for service, it turned out that all tire pressure sensors needed to be replaced BUT the service techs identified other problems that surfaced JUST AS THE CAR WAS NOT COVERED BY WARRANTY...

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- the most serious being an oil leak caused by FAILURE OF CAM CARRIER SEALS. This caused a dangerous condition where oil was leaking onto the engine and into the spark plugs. I find it odd that this EXPENSIVE issue was not discovered sooner. Subaru and only Subaru has been servicing this vehicle since new and they should have caught it.

Filed Incident Wheels · Engine · Fuel / propulsion systemNHTSA 11751812
2016 Subaru OutbackEngine & cooling

There is a crack in the exhaust manifold and the exhaust smell is entering the cabin affecting driver and passengers' health. The problem has been confirmed by a Subaru dealer and an independent mechanic. There were no warning lights, I was made aware after routine maintenance by an independent mechanic. The same part has failed in multiple Subaru models: Recall WUJ-95 (SOA says my car is not covered in the recall/campaign due to my car's production date being 24 days after the "Affected Production Dates") ....

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Additionally, Subaru of America extended the exhaust pipe warranty on the same part on other models, as late as 2018, so the part continued to be in use and problematic. Subaru of America says replacing the part is not covered by a recall for my car, however I feel strongly that it SOA should replace the part due to the proximity of my production date and the continued issues with the part across multiple models.

Filed Incident EngineNHTSA 11751682

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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