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.
Engine & cooling
2020 Subaru Outback Engine problems
Owners have filed 52 complaints about the 2020 Subaru Outback's engine & cooling with NHTSA - 6% of all its complaints, most recently on October 30, 2026. They describe 3 crashes, 3 fires and 1 injury. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 52
- Recalls
- 0
- Crashes
- 3
- Fires
- 3
- Injuries
- 1
- Deaths
- 0
Engine complaints
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.
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.
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.
What component or system failed or malfunctioned, and is it available for inspection upon request? - Car fire, originating under the hood. Unknown if vehicle is available for inspection. Last reported by Insurance company to be at IAA; [[redacted]]; PH#: [[redacted]]. How was your safety or the safety of others put at risk? - Car fire began while in the car after moving through an intersection with a stop light. Four of us in the car, ages raging from [[redacted]] old. Fire quickly spread; however, we were able...
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to exit the car without injury. Has the problem been reproduced or confirmed by a dealer or independent service center? - NO, car was totaled and Subaru, NA Consumer Advocacy agent assigned claims that the vehicle is no longer available for inspection. Both insurance company (Travelers Auto) and Subaru, N.A. consumer advocacy group made aware of our concern as to why the vehicle caught fire. One or both demonstrated nonchalance of this concern. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? - YES - Just prior to the start of the fire, the vehicle stalled and cut-off with CHECK ENGINE LIGHT. Also, we smelled an unusual exhaust at the time prior to, and at the time of the cut-off. This occurred at the intersection of where the car caught fire. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Vehicle: 2020 Subaru Outback Onyx/Limited/Touring XT (2.4L Turbo FA24) Component: Engine Lubrication / Oil Pan Sealant I am reporting a manufacturing defect involving the engine oil pan seal on the 2020 Subaru Outback 2.4L Turbo. Upon inspection of fluid accumulation at the transmission joint, a Subaru dealership diagnostic confirmed that the engine oil pan seal has failed. The dealership noted that engine oil is leaking and being forced rearward by airflow while the vehicle is in motion, saturating the...
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transmission assembly. Technician Admission: The service department at the Subaru dealership explicitly stated that this is a "known manufacturing issue" with the FA24 engine series. Financial Concession: To acknowledge the nature of this premature failure, the dealership waived the $185 diagnostic fee, resulting in a $0 invoice (attached). Inadequate Coverage: Despite the dealership's admission and a repair quote exceeding $1,100 (file is attached), Subaru has not yet issued a recall or extended warranty for this specific 2020+ turbo application, though similar issues with RTV sealant have plagued the brand's newer engine platforms. The technician confirmed that the leak is significant enough that oil is traveling the length of the transmission. This presents a potential fire hazard if oil contacts high-temperature exhaust components (such as the turbocharger or catalytic converter) and contributes to environmental contamination. This is the Turbo (XT) model. Turbochargers generate much higher heat, which makes an oil leak significantly Subaru National Customer Service has advised me to file this complaint with the NHTSA. I am requesting that the NHTSA investigate the frequency of oil pan seal failures on the 2020+ 2.4L Turbo (FA24) engine to determine if a mandatory recall or extended warranty (similar to past CVT or engine seal settlements) is warranted to protect consumers from the high cost of a documented manufacturing flaw.
A fire started under the hood of my car while I was driving. There were no warning lights on in my car and the temperature gauge was in the middle where it usually is. Earlier in the day, I smelled gas, but I thought it was a different car as the smell of gas went away after a car that had a lot of exhaust coming out was no longer in sight.
Car stalled in traffic. The engine was cranking but it would not start. Had AAA tow off the road and to my home. Car sat for 10 days waiting for a fuel pump (thought this was the problem). After sitting for 10 days the battery was totally dead! New fuel pump installed battery was jumped but could not start the car. After 2 hours on the charger the battery still did not have enough energy to turn over the engine. Car is in a certified service shop (Wilhelm). Battery replaced and same starting issues with the...
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new battery and the new battery is discharging at a very high rate even though the car is not starting. Bought the car used in 2023 so I have no knowledge of the history of the car. Service provider running factory diagnostic testing but so far no determination as to cause of the high rate of discharge. Verified that the fuel pump is fully operational. What we know is that with a fresh fully charged battery and a working fuel pump the car will not start and remain running. The engine stops and the battery drain is excessive.
The contact owns a 2020 Subaru Outback. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the thermo-control valve. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 90,000.
Hi: When I was driving yesterday, the engine warning light and brake warning light both turned on. The car was like frozen on the road cannot be moved no matter how to press the gas pedal. The police helped to call tow and move my car out of the road. The tow driver left my car at a flat parking lot. On the lot, when I tried to restart my car, the car started to shake side to side and up and down. I can feel some part is dislocated and one piece of heavy thing was swaying in the car. The engine warning light was...
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on for two times during the last two years. First time when I sent the car to the dealership, they performed the check and fixed it by free. The customer service person told me the problem is the sensor failing and the fixing was free. So, I guess it is the system defect and the manufacture already knew it. So the repairing was free. However, with one year, the situation happened again. The second time I sent the car for fixing, the service person told me it was the same problem of sensor failing but they charged me around two hundreds dollar for the second time fixing. Yesterday, the same situation happened again with the brake warning light on at the same time. It is almost another one year after the second time I sent car for repairing. My most concern is the car completely suddenly stopped during the driving. If I was on the highway, serious collision may happen and I am already passed away.
On 12/6/2023, as I slowly turned right into a parking space, my car suddenly surged forward and accelerated without my input to the gas pedal. The brakes did not work, and there was no resistance from the brake pedal when I repeated to push it. The car continued to accelerate for about 80 ft as I focused on steering to avoid hitting other cars parked in the lot. The car ran over a curb, up a grassy area, and crashed into a row of trees. The airbag did not deploy. I sustained neck muscle strain/whiplash, and...
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bruises to my chest and right knee. My safety was at risk, as well as anyone or anything that was in the car's path since I had no control over the acceleration or the brakes. The car is a 2020 Subaru Outback with about 44000 miles. It is in a body shop and they have not yet determined if it is safe to work on. So far, they have observed the engine race when the car was turned on. There were no warning signs prior to the acceleration. When I called the Subaru dealer service department, I was told that they never heard of this before and it had to have been my fault. They said I could bring it in after the body damage is repaired, and that I can pay for a diagnotic report. However, they expect that the report will not show anything.
Thermo Control Valve assembly has failed resulting in loss of use for the following: Rear Automatic Brake, Eye Sight lane keeping, loss of heat in cabin and failure of coolant to circulate within engine possibly leading to engine failure, loss of cruise control and check engine light coming on. Reference TSB [[redacted]] . Without cabin heat vehicle is not useable in current cold temperatures (Currently 22 degrees Fahrenheit in Ohio on December 14, 2023). Dealer has confirmed part failure. Issue must be addressed to continue operating vehicle so I paid $1185.87 out of pocket to repair. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
A well-known failure of the Thermal Control Valve (TCV) occurred, which disabled many or most of the safety features on the car in addition to crippling the heat output in the cabin. Additionally, depending on which way the valve sticks, it could overheat the car and ruin the engine, or worse. Car is under 4 years old and repair estimate is nearly $1900. There is a technical safety bulletin [[redacted]] that outlines a redesigned TCV. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The factory 2020 Subaru Outback Wagon is built with a Thermo Control Valve that is, essentially, made out of a composite plastic. As this part is part of the engine cooling system, it is placed under both heat and pressure. While it controls the anti-freeze to the heater core in the passenger compartment, it is also attached under cover to metal fittings. While the car now has about 90,000 miles, this control valve cracked and began to leak anti-freeze on top of the engine. Without cooling, the engine would...
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likely be ruined. Thus, the car required immediate service. When a fault like this occurs, by the way, the Subaru Eyesight System shuts down taking with it various safety features. I had the defective part replaced and it's replacement is not made of composite plastic but, rather and more appropriately, metal. It is my belief that the selection of the orignal part was a design defect ignoring the potential for differential expansion of the parts when exposed to such temperatures. Failure was inevitable. It is worth noting this is not an inexpensive repair as numerous parts have to be removed to access this valve. Likewise, the service representative made note that numerous other customers have had to have the same service.
I was driving and car accelerated without warning. Hit partially open garage door, only stopped after hitting and damaging back wall of garage. Significant damage to car, items in the garage and garage wall. There was no warning whatsoever. As of yet the car has not been assessed as to the cause of the malfunction.
While we were at a speed of about 55 mph on a state highway, I had just selected cruise control when all the lights went on in the dash--including the warning lights for the brake, the check engine light--and power shut down in the vehicle as if we'd run out of gas. We were able to keep a very slow speed of about 20-25mph, but had to activate the 4-way flashers to alert other drivers that we were losing speed. We managed to get over to the shoulder and call for a tow. We feel this was a catastrophic failure of...
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the vehicle, which endangered both of us. At least we still had power steering. At the dealer, the techs advised us that the issue was likely due to a failure of the electronic thermostat control. The car was in the shop for a week, and was repaired at no cost to us. The thermo control valve and all related parts were replaced. If not under warranty, this would have cost over $2K. We had no warning that this component was failing.
At one year and 7,358 an engine oil leak had to be repaired, and still seepage and monitor is recommended. Then at three years and 28,175 the coolant bypass valve failed and was repaired. Both problems were covered by warrently, but as I live 60 miles from the dealer it was a hassle. I bought the car new in March 2020. I can not recommend Sabaru to people who ask about it and it is highly unlikely I would purchase another Subaru. However it is comfortable and practical and do not plan to sell or trade it for another car at this time. Now at four months after the latest repair it appears to be doing well, and I monitor the oil level.
While driving on the NYS Thruway (I90), I started to pass a Tractor Trailer, I put my blinker on and began moving to the right to pass. There were 2/3 cars in back of me also passing. I was using cruise control and I began to put my foot on the accelerator to finish my passing and move over to the right hand lane to let the other vehicles pass me. However, upon accelerating, my car started to drop power, multiple lights displaying simultaneously indicating a potential problem. (Eyesight Assist, Vehicle...
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Dynamic Control, Brake & Engine Lights), the vehicle started jerking back and forth and I lost all but maybe 5 miles of power. My choice at that time was put my blinker on and try and move to the right - letting the Tractor Trailer pass me on the right and HOPE there was not another vehicle behind so I could move over safely at that crawling speed or go to the left into the gully. This could have been a multiple car collision and maybe fatalities due to the speed and loss of control of my vehicle. After towing to the nearest dealer, they determined it was the Thermo Control Valve. I see now that there is a "service bulletin" and design change of this component and that other Subaru drivers have been affected the same way. This is a very serious situation. I ask, why no recall from Subaru. I have been without my vehicle now for 4 days and may not have it back until next week. I am very fearful of driving that vehicle again.
I just purchased a Outback XT with the 2.4l turbo engine. After more researching with owning the car I discovered these cars with this engine can have a oil pan leak due to the bad RTV sealant applied to the lower oil pan from the factory. I went outside to go look under my car to see if this issue is occurring to mine. To discovery my car has a small oil leak from the rear of the oil pan. it has 31k miles. Further research shows the WRX whom has the same engine also has an issue with RTV falling apart within...
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the oil pan and having the oil pick up tube sucking up the gasket in small pieces. These pieces are then and can get stuck at the top of the tube where a small screen is and can STARVE the engine from oil! MULTIPLE pictures of various shops have shown this LITERALLY. This is a big issue and is common for these engines to have this from the factory many YouTube, forums, blogs are saying this! Search " '22 WRX RTV oil pan pick up tube issue" , "Subaru 2.4l Turbo oil pan leak" , "Subaru 2.4l Oil peak up with RTV" This MUST BE CORRECTED it can cause SEVERE engine failure. THIS NEEDS to be RECALLED IMEDIATELY!
When we started vehicle, a wide array of systems shut down including cruise, Eye Sight, lane detection, auto high bean, adaptive light cornering - essentially anything "automated" or assisted - along with the heating. The car ran at a higher RPM at idle - 2000 vs a usual 700-800 - and rough shifted at speed. Again, as if the automatic transmission lost its sync. The water temp gauge was also off. Have since learned this was the "thermo control valve" and somewhat of a known fault on Outbacks of this year. We were...
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lucky to reach home from the long trip we were on and to the dealership. At the dealership, the service team did not admit this was wide spread. Nor did they tell us there is an updated part from Subaru available. They intend to install the OEM part, which concerns us that in another 40-50k we will face the same $2k problem. We are unlucky that we just went over 60k miles, so this will not be covered under Subaru's 60k drivetrain warranty. That Subaru is covering a cooling system problem under the guise of being drive train tells me they know they have something to keep quiet.
Check engine light came on with error code p26a5 which seems to be known issue with the Thermo Control Valve.
I pulled into my driveway, came to a stop and planned to back up a short distance to be nearer the front walkway. Before I could shift into reverse the car started to accelerate forward. I slammed my foot onto the brakes which had no effect on the acceleration. The car stopped when the lower bumper hit and ran up onto a large boulder on the edge of the driveway. The car was partially wedged on the top of the boulder but I was able to back it off the boulder, park and turn off the car. I have scheduled an...
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appointment with the service department on February 1st, at the dealership where I purchased the vehicle in June 2020. Of note, I had a routine oil change and service check at this dealership on January 16 with no engine problems noted.
On Dec. 20, 2022, my Outback totally stopped working while sitting at a red light, causing traffic to be forced to maneuver around my car. A kind policeman put out flares until the tow truck arrived. I could not shift into park, nothing electric would work, except the radio continued to play and the flashers worked until it all died. I could not turn the radio off and the seat would not adjust. The electronic screen flashed on and off until it went totally black, after about an hour. This vehicle only has about...
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21,000 miles on it and was under warranty until 3 weeks prior to the incident. Every time I took it to the dealership, I explained that the electronics had glitches. They always said it was fixed but it never was right. The TomTom navigation system was totally unreliable from day one; the screen went blank and the radio would not work at all, as well as all the screen functions, without warning. The screen would read out that I should keep my hands on the wheel, although both hands were on the wheel. Over and over it had problems which were not resolved.
•Driver's window failing to properly and completing retract. This has been particularly troublesome in the bitter cold of Northern Minnesota. On each visit to Subaru I have requested that the window be repaired. All efforts have been unsuccessful. •Battery failure without cause or prior warning signs. On previous visits the Service Center failed to address and resolve the battery problem that I brought. In my most recent visit they referred me to a Legal Settlement action which prevents them from further...
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addressing the battery issue. I brought the vehicle in twice for repair/replacement of the battery. Not resolved. •Eyesight Driver Assist malfunction. Upon presenting the issue, the Service Manager suggested that the cause was sunlight hitting the sensors and he did not work on the issue. Even when I noted that the problem happened in the evening as well as during the daytime, no response. •Check Engine Warning Indicator signifying any number of important malfunctions while also causing Cruise Control, Eyesight, RAB, and other critical, electronic systems to deactivate. More importantly, the Subaru Service Center informed me that there is a life-threatening risk associated with the underlying cause of this Check Engine light appearing, and, consequently, they would not permit me to drive the car from the Service Center until necessary repairs and part replacements were made. I have been waiting over two months for the automobile to be repaired and returned to me. I had previously brought the vehicle in specifically for this issue. At that time the Service Center failed to correct the problem and suggested it would disappear on its own (the warning light would turn off after a number of ignition starts). When I requested that they clearly understand the problem and fix the lighlight warning, the manager refused to continue to work on the vehicle.
The problems I have had or currently have with my vehicle are as follows: 1. On or about November 17, 2022, multiple dash lights, including the check engine light, came on while idling in a parking lot. I turned the engine off for a few minutes and when I restarted the car the lights didn't come back on. I took no further action at that time 2. On November 17, 2022, when starting the engine for the first time that day, numerous lights came on on the dash. The engine was idling and there appeared to be...
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some braking/stuttering not initiated by the driver of the car when it was being driven. The car was returned to our home garage after being driven approximately 1/10 of a mile and another vehicle was driven that day. The Subaru dealer advised to drive the vehicle to his shop in Miami. We took it to Subaru on November 20 and they fixed it that day. The technician said that "The technician completely placed the sensor and told us that the car was fixed. 3. On November 29, 2022, many dash lights, including the check engine light, came on when starting the vehicle for the first time during the day. The engine was more or less idling. The car was driven and the lights eventually went out on their own while running errands. We took the interior to the Subaru dealer. They said the battery would need to be replaced and adjustments made and we returned the Outback to the Subaru dealer on November 29, 2022 for maintenance. They changed the battery and the star/stop and returned the car 3 days later 4. You were driving on the interstate when you started to brake accidentally. This occurred on southbound I-95 just north of boca raton with 2 children in the car as passengers. All the dash lights came on including the check engine light. Less than 10 seconds later, the car began to brake against the driver's will. The interior slowed to 20 mph in less than 100 yards. The vehicle continued to resist my attempts to accelerate.
Subaru Outback engine complaints by year
Outback engine problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data