The 2021 Subaru Legacy is associated with 31 official NHTSA owner defect complaints and 3 safety recall campaigns in the federal safety database. The most frequently reported component area is Other / Uncategorized, accounting for 5 reports (16% of total complaints). EPA testing covers 2 certified vehicle configurations spanning 2.5l 4-cyl and 2.4l 4-cyl configurations. Gasoline and hybrid variants deliver 27 to 30 MPG combined.
Key Data Findings
- • NHTSA Owner Complaints: 31 reports
- • Safety Recall Campaigns: 3 campaigns
- • Top Reported Defect Area: Other / Uncategorized (5 / 16%)
- • Safety Incident Signals: 0 crash / 0 fire / 1 injury reports
- • NHTSA Overall Safety Rating: 5 / 5 Stars
- • EPA Efficiency: 27–30 MPG (2 variants)
Data Note: Compiled directly from official NHTSA Office of Defects Investigation (ODI), NHTSA 5-Star Safety Ratings, and EPA FuelEconomy.gov databases.
| Variant | Engine | Drivetrain | Transmission | City | Highway | Combined | EV Range | Est. Annual Fuel Cost |
| Legacy AWD | 2.5L 4-Cyl | All-Wheel Drive | Automatic (AV-S8) | 27 MPG | 35 MPG | 30 MPG | — | $2,050 / yr |
| Legacy AWD | 2.4L 4-Cyl | All-Wheel Drive | Automatic (AV-S8) | 24 MPG | 32 MPG | 27 MPG | — | $2,300 / yr |
Data Boundary Note: EPA specifications are shown by certified vehicle configuration. NHTSA complaints and recall totals are recorded at the model-year level across all configurations.
| Tested Drivetrain / Cab Variant | Overall Rating | Frontal Crash | Side Crash | Rollover Rating | Rollover Risk |
| 4 DR AWD | | | | | 10.100000000000001% |
Active Driver Assistance Systems (NHTSA Recorded): Forward Collision Warning (FCW) is documented as Standard and Lane Departure Warning (LDW) is documented as Standard in official NHTSA records for tested 2021 Subaru Legacy models.
View complete 2021 Subaru Legacy crash test & safety breakdown →
Top Reported Problem Categories
Ranked by total consumer complaint submissions recorded by NHTSA
Data Attribution & Context: Complaints are self-reported by vehicle owners to NHTSA and represent unverified consumer submissions. Complaint volume does not equal a statistically controlled failure rate and is not adjusted for total vehicles sold or cumulative mileage driven.
View all 2021 Subaru Legacy problems & component breakdown (19 categories) →
Affected Component: AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
Defect Summary: Subaru of America, Inc. (Subaru) is recalling certain 2020-2022 Outback and Legacy vehicles. 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.
Free Manufacturer Remedy: Dealers will replace the ODS sensors on the front passenger seat, free of charge. Owner notifications were mailed February 3, 2025. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WRA-24.
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH
Defect Summary: Subaru of America, Inc. is recalling certain model year 2021 Crosstrek, 2022 Forester, 2021-2023 Legacy, and Outback vehicles. An insufficient weld may allow water to enter the inhibitor switch, causing it to fail.
Free Manufacturer Remedy: Dealers will replace the inhibitor switch, free of charge. Owner notification letters were mailed January 8, 2024. Owners may contact Subaru customer service at 1-800-782-2783. Subaru's number for this recall is WRQ-23.
Affected Component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
Defect Summary: Subaru of America, Inc. (Subaru) is recalling certain 2020-2021 Outback and Legacy vehicles. A programming error in the Transmission Control Unit (TCU) may allow the clutch to engage before the drive chain is completely clamped.
Free Manufacturer Remedy: Dealers will reprogram the TCU, inspect TCU data for chain slip, and visually inspect the chain guide. If evidence of chain slippage or damage is found, the transmission will be replaced. Repairs will be performed free of charge. Owner notification letters are expected to be mailed August 24, 2022. Owners may contact Subaru's customer service at 1-844-373-6614. Subaru's number for this recall is WRK-22. This recall is an expansion of previous recall number 21V-955.
View all 2021 Subaru Legacy recalls & campaign history (3 campaigns) →