2020 Subaru Legacy.
The 2020 Subaru Legacy is one of the worst years by owner complaints: 107 complaints in its first 3 years and a Lemon Index of 404, where 100 is the average car. Owners complain most about wipers & visibility, it has 6 recalls, and it gets 27 to 30 mpg combined. The best Subaru Legacy year is 2012.
Lemon alert. 4× the average car's complaints.
Best year 2012

Before you buy. What matters most for this car.
How serious. Out of 121 owner complaints, owners reported:
Every Subaru Legacy year. 2020 is highlighted. Lower is better.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 2K to 12K miles on the car (52 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
- wipers & visibility complaints mostly came at 1K–8K miles
Recalls 6
- airbags 2024
A capacitor in the sensors for the Occupant Detection System (ODS) may crack and short circuit, which can prevent the front passenger air bag from deploying in a crash.
- transmission & drivetrain 2022
A programming error in the Transmission Control Unit (TCU) may allow the clutch to engage before the drive chain is completely clamped.
- transmission & drivetrain 2021
A programming error in the Transmission Control Unit (TCU) may allow the clutch to engage before the drive chain is completely clamped.
Show all 6 recalls
- fuel system, gasoline 2021
The low-pressure fuel pump inside the fuel tank may fail.
- back over prevention 2020
The August 2020 over-the-air software update may have timed out without completing the installation, corrupting the data, and causing the rearview display to shutoff intermittently.
- brakes 2019
The brake pedal mounting bracket may have a missing or insufficiently tightened bolt.
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Problems Subaru told dealers about
Subaru sent dealers 595 repair notes for this car. The ones about its biggest problems:
- Announcement to Subaru Retailers regarding the preliminary settlement in a class action…
- Battery Drain Class Action Settlement- Warranty Extension Training
- Subaru Battery Drain Product Liability Litigation
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Safety

Crash test details
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| Subaru Legacy 4 DR AWD | ★★★★★ | ★★★★★ | ★★★★★ | ★★★★★ |
Fuel cost and engines
About $2150–2400 a year in fuel (EPA estimate). Engines: 2.4L 4-cyl, 2.5L 4-cyl.
In owners' words
Slow (few days), progressive, random crack through the entire middle of windshield. There was no impact of any stones a road debris.
2020 Subaru Legacy owner · NHTSA complaint 11337395
More owner reports
Front Windshield has broken last year without any sign of impact. This year front windshield has broken after very light impact. Front windshield is very weak and is not reliable even after replacement.
NHTSA complaint 11481091
Large crack developed in the windshield less than a year after purchase. Minimal impact with road debris resulted in a large crack.
NHTSA complaint 11372499
Quick answers
Is the 2020 Subaru Legacy reliable?
No, it is one of the worst by government complaints. It drew 4× the average car's complaints filed with NHTSA in its first 3 years, per car sold (Lemon Index 404; 100 is average, lower is better). The best Subaru Legacy year by this measure is 2012.
What are the most common 2020 Subaru Legacy problems?
In owner complaints to the government, the parts named most are wipers & visibility (52%), electrical (11%) and visibility (7%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2020 Subaru Legacy have?
6 safety recalls (latest: airbags). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2020 Subaru Legacy get?
27 to 30 mpg combined, depending on the engine (EPA estimate).
Is the 2020 Subaru Legacy safe?
NHTSA gave it 5 out of 5 stars overall in its best tested version. Ratings differ by body style, and the full table is on the advanced page.
At what mileage do 2020 Subaru Legacy problems start?
Half of the owners who gave a mileage reported the problem between 2,400 and 12,000 miles. The middle report was at 5,900 miles, from 52 complaints.
Does the 2020 Subaru Legacy have transmission problems?
Transmission and drivetrain issues make up 6% of its owner complaints.
How much does the 2020 Subaru Legacy cost in fuel a year?
About $2150 to $2400 a year, by the EPA's current estimate.
What engines does the 2020 Subaru Legacy have?
2.4L 4-cyl, 2.5L 4-cyl.
What Subaru Legacy year is better than the 2020?
By owner complaints per car sold, the best recent years are 2012, 2014 and 2013.
Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works