10.0

really awful
Crashes / Fires:
3 / 1
Injuries / Deaths:
1 / 0
Average Mileage:
3,101 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2020 Subaru Outback engine problems

engine problem

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2020 Subaru Outback Owner Comments (Page 1 of 3)

problem #42

Jul 042024

Outback

  • miles

A D V E R T I S E M E N T S

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 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.

- Mt. Laurel, NJ, USA

problem #41

Dec 062023

Outback

  • miles
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 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.

- Elgin, IL, USA

problem #40

Dec 132023

Outback

  • miles
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 [XXX]. 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)

- Westerville, OH, USA

problem #39

Oct 182023

Outback

  • miles

A D V E R T I S E M E N T S

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 [XXX] that outlines a redesigned TCV. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Lehighton, PA, USA

problem #38

Sep 292023

Outback

  • miles
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 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.

- Suffolk, VA, USA

problem #37

Sep 162023

Outback

  • miles
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.

- Middleburg , FL, USA

problem #36

Aug 072023

Outback

  • miles

A D V E R T I S E M E N T S

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 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.

- Mckinleyville, CA, USA

problem #35

Jul 262023

Outback

  • miles
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.

- Otis, OR, USA

problem #34

Jun 012023

Outback

  • miles
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 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.

- Chittenango, NY, USA

problem #33

Mar 162023

Outback

  • miles
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 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!

- Denver, CO, USA

problem #32

Feb 182023

Outback

  • miles

A D V E R T I S E M E N T S

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 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.

- State University, AR, USA

problem #31

Jan 312023

Outback

  • miles
Check engine light came on with error code p26a5 which seems to be known issue with the Thermo Control Valve.

- Randleman, NC, USA

problem #30

Jan 232023

Outback

  • miles
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 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.

- Salem, OR, USA

problem #29

Dec 202022

Outback

  • miles
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 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.

- Annapolis, MD, USA

problem #28

Jun 102022

Outback

  • miles
-??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 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.

- Warroad, MN, USA

problem #27

Dec 282022

Outback

  • miles
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 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.

- Hollywood, FL, USA

problem #26

Dec 282022

Outback

  • miles
the car brake, with the foot on the gas all the lights came on and it stopped on the street (traffic being stuck) it's a car safety problem it can cause a serious accident if I end up on I-95, if something happens to me they will be responsible for it I have everything the records and photos of everything that happened to the car Check. what happens to that car with the same failures over and over again in 2 months 3 time on the dealer with the same problem I buy this car on October 2022 and over and over again the same problem

- Hollywood, FL, USA

problem #25

Dec 102022

Outback 4-cyl

  • miles
On Saturday 12/10/2022 at approximately 5PM, I was driving my 2020 Subaru Outback on the left lane of a highway in South Miami at a speed of 65+ miles per hour when the vehicle lost all power. The vehicle-??s Eye Sight" system alerted me to "Keep your eyes on the road-??, then all of the instrumentation on the dashboard lit up. I was able to maneuver my vehicle through traffic to the relative safety of the right shoulder of the highway. I tried to restart the engine and that was a futile effort. The electrical failure in the vehicle also impacted the hazard lights and now my car was engulfed in darkness on the highway, making a bad situation even worse. I contacted Subaru Starlink and they promised a tow truck within in an hour but later revised the estimate to 11PM. Meanwhile there are 4 women occupants in my vehicle and all are in our 60's. Subaru could not and would not provide us safe transportation off the highway at that time of night due to "liability issues". In the end, I was able to secure my own tow truck and transported my car to a Subaru dealership and transported myself and my passengers to safety. The Subaru dealer informed me that my experience is a known issue with Subaru and that the root cause is a defective valve. This valve is on back order and its availability is impacted by supply chain issues. My car remains at the dealership and I have been provided with a loaner vehicle in the interim. There is no ETA on the repair or when I will have my car back.

- Coral Springs, FL, USA

problem #24

Sep 252022

Outback 4-cyl

  • miles
Vehicle just quit running going down the road called roadside assistance after approximately two plus hours no help policeman comes along and said need to move car so he called a tow service and within minutes tow truck comes and tows my vehicle to Subaru dealership in Des Moines Ia. This happened last Sunday come Monday morning I get a call about my car they look into the problem told me I had a bad thermal control valve and parts would not be here until December. I asked if I could have it towed to dealership in Bellevue Nebraska where I live they said call Subaru of America and I did I explained the situation to them and they gave me a case number then said they would call the next day it didn-??t happen called them back and they say working on it we-??ll it-??s been a week and still no call back and I don-??t know where the car is I feel I-??m being blown off

- Bellevue, NE, USA

problem #23

Apr 152022

Outback

  • 9,846 miles
The contact owns a 2020 Subaru Outback. The contact stated while driving 30 MPH, the vehicle began to jerk and then stalled. The check engine warning light and several unknown warning lights were illuminated. The contact was unable to veer to the side of the road. The contact was able to restart the vehicle and continued driving; however, the failure reoccurred that same day. The contact veered to the side of the road and restarted the vehicle. The contact was able to drive to her residence; however, the failure persisted. The vehicle was towed to the dealer where it was diagnosed that the Engine Control Module (ECM) was malfunctioning. The dealer reset the warning lights; however, the failure had recurred more increasingly. The vehicle was then towed to a second dealer, Subaru of Pembroke Pines (16100 Pines Blvd, Pembroke Pines, FL 33027) where the fuel pump and high-pressure fuel pump were replaced; however, the failure persisted. The dealer then replaced the Engine Control Module (ECM). The vehicle was not fixed and remained at the dealer since July 12, 2022. The manufacturer was notified of the failure and followed up with the dealer. The contact was awaiting a call back from the manufacturer. A case was opened. The failure mileage was approximately 9,846.

- Coral Gables, FL, USA

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