2020 Subaru Outback Engine Problems
- Complaints
- 49about this part
- Share
- 5%of 901 total for the year
- Median mileage
- 7,250miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 49 complaints about the engine of the 2020 Subaru Outback, 5% of the 901 complaints for this model year. Where a mileage was given, the median is 7,250 miles. 3 of these say a crash was involved and 3 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My 2020 Subaru Outback is equipped with the auto-start-stop feature. From the beginning this feature would routinely not function, displaying the icon indicating auto start stop was disengaged. When attempting to utilize this feature I learn two more deliberately hold down firmly on the brake pedal and I could engage this feature at times. Nine times out of 10 the auto start stop feature does not engage when I stop in drive with my foot on the break at a traffic light or at a stop sign. …”
NHTSA complaint #11416683, filed 2021-05, 7,000 miles“Wife reported car stalled when making a turn after stopping. While turning she said it felt like the car was not getting any gas and had no power. She let the vehicle roll to a stop on the side of the road. She said it took several attempts for the car to start back up. This happened 3 times today during a trip to the dentist in the city of lynchburg, virginia. I called terry Subaru of lynchburg when she got home and reported the problem. They told me to bring it in tomorrow to have it checked out.”
NHTSA complaint #11382941, filed 2020-12, 7,800 miles“In the first year of ownership of my 2020 Subaru Outback, I have experienced many glitches in the operation of the electronica safety devices. The latest has been returning to the car and finding the battery fully discharged despite nothing being left in the on position. Yesterday, after fully charging the battery, four hours later the battery was found to be fully drained. I boosted the car and began to drive it when at the first traffic light the auto-start-stop feature shut the car off and I could not re-start in the middle of an intersection.”
NHTSA complaint #11416673, filed 2021-05, 15,000 miles“There is no way to disable the auto start/stop system. In florida the temp can get over 95 degrees. After 10-15 seconds of the car being off the car starts to heat up. My wife who has breathing problems starts having problems. I have ask the dealer to permanently disable this feature but they said no. You can do it each time you start the car but it is several screens deep on the information system. People who do not drive the car often (like my wife) would have trouble turning this feature off and could pass out sitting at a light. …”
NHTSA complaint #11328765, filed 2020-06, 6,100 miles“Battery is inadequate for the electronics in this car and will be dead if not driven often. After being a unable to start my car twice within a month, the service manager admitted this was a design flaw, there is no other upgrade or replacement for the battery and that the factory recommendation is to drive the car every other day. This means that when I travel and leave my car in an airport parking lot for a week or more, I will not be able to start the car when I return. The service manager told me to disconnect the negative post at the airport, then reconnect the post when I return. …”
NHTSA complaint #11323869, filed 2020-05, 4,500 milesRelated service bulletins
- 11036811Aug 20, 2026This service bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup. This is an revised version of the original bulletin.
- 11034269Jun 30, 2026This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11034264Jun 26, 2026This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11034257Jun 23, 2026This bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup.
- 11034243Jun 3, 2026This bulletin announces the design change made to the exhaust manifold flange nut material that has been changed from stainless steel to medium carbon steel. This change also…
- 11034237Jun 1, 2026"This bulletin provides a new diagnostic procedure for vehicles equipped with a Denso CP 1, 1.5 and 2.5 head units to provide an enhanced version of the troubleshooting steps for…
- 11033065May 13, 2026This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11033051May 1, 2026This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT)…
- 11027982Jan 12, 2026This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES).
- 11027978Jan 8, 2026This bulletin announces the design change made to the high-pressure fuel pump developed to prevent DTC P0087 (Fuel Rail/System Pressure – Too Low Bank 1).
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 5 | 6% |
| 2024 | 7 | 7% |
| 2023 | 1 | 1% |
| 2022 | 23 | 5% |
| 2021 | 21 | 7% |
| 2020 | 49 | 5% |
| 2019 | 39 | 4% |
| 2018 | 37 | 5% |
| 2017 | 44 | 5% |
| 2016 | 53 | 8% |
| 2015 | 47 | 9% |
| 2014 | 35 | 17% |
| 2013 | 67 | 23% |
| 2012 | 50 | 17% |
| 2011 | 85 | 13% |
| 2010 | 44 | 12% |
| 2009 | 15 | 14% |
| 2008 | 14 | 6% |
| 2007 | 15 | 12% |
| 2006 | 43 | 16% |
| 2005 | 10 | 4% |
| 2004 | 2 | 2% |
| 2003 | 5 | 5% |
| 2002 | 5 | 4% |
| 2000 | 3 | 1% |
Other parts of the 2020 Subaru Outback
383 complaintsElectrical system
259 complaintsOther or unknown
153 complaintsForward collision avoidance
49 complaintsTransmission and drivetrain
48 complaintsBody and structure
21 complaintsLane departure
20 complaintsAir bags
18 complaintsVehicle speed control
18 complaintsExterior lighting
16 complaintsBrakes
15 complaintsFuel system
15 complaints
← All problems reported for the 2020 Subaru Outback
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology