2020 Subaru Legacy: engine and transmission complaints
NO ELEVATED SIGNAL
9%
11 of 121 relevant owner complaints are about the engine, transmission or fuel system
No elevated drivetrain complaint concentration in the available NHTSA records for the 2020 Subaru Legacy. Engine, transmission and fuel system account for 9% of relevant complaints.
Better than 97% of the 1,230 model years we track (2010–2023).
Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.
What owners reported
ELECTRICAL SYSTEM,ENGINE07/16/2025FIRE
One hour into traveling on the highway smoke began to come from under the hood so we pulled off to the side of the road. Upon opening the hood, after the smoke cleared, a fire was observed. At that point the passengers exited the vehicle and called 911. There was no warning lights or sounds indicating any problems prio…
FUEL/PROPULSION SYSTEM03/18/2024
The Thermo control valve is faulty and my friends is too. There is a class action lawsuit concerning this part. I replacement part was designed in 2021 and Subaru is aware of this issue, but refuses to do a recall. So far 2019, 2020 and 2021 models are affected.
ENGINE01/17/2024
The engine thermo control valve has been defective and Subaru has known this issue since 2022 and has tried to do some software update but it is defective [XXX] ) despite multiple tries. This can overheat an engine, result in the front collision warning system (eyesight) and rear auto-braking not working. Specific to …
Three of 11 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.
Recall campaigns on this model year (6)
BACK OVER PREVENTION:DISPLAY FUNCTION
Subaru of America, Inc. (Subaru) is recalling certain 2020 Legacy and Outback vehicles equipped with "high" grade and "mid" grade multimedia navigation. The August 2020 …
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2020 Legacy and Outback vehicles. A programming error in the Transmission Control Unit (TCU) may …
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2018 Forester, 2018-2020 Impreza, Legacy, Outback, 2018-2019 BRZ, WRX, and Toyota 86 vehicles. Th…
This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.
Before you buy a 2020 Subaru Legacy
No elevated drivetrain pattern for this model year. That describes the model, not the car in front of you.
Get an independent pre-purchase inspection from a mechanic you choose.
6 recall campaigns on this model year. Whether a specific car still has one open depends on the VIN; the report checks that.
Ask for service records. A transmission already replaced under warranty is a different car from one that was not.
Have the VIN?Paste it and get the full report for that car. First report free, then a 30-day pass covers a whole car search.
Experimental model-level information. This is not a vehicle inspection, vehicle-history
report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition
of any individual vehicle.
