Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2021 Subaru Legacy Reliability ReportKeepScore 88/100 · top failure points · buy or avoid

88/ 100

KeepScore

LOW RISK

Grade: A-

A steadfast, all-weather sedan that prioritizes safety and traction with only a few minor digital age quirks.

Full system breakdown + what I would do

Quick Facts · 2021 Subaru Legacy

  • Scores roughly in line with adjacent Subaru Legacy years — consistency that often signals a stable platform generation.
  • The system most likely to surface first: infotainment system (minor severity).
  • Has 3 NHTSA recalls on record — the most notable involves the power train:automatic transmission:control module (tcm/pcm/tecm).

2021 Subaru Legacy: Buy or Avoid?

The 2021 Subaru Legacy is a supremely dependable mid-size sedan, offering standard symmetrical all-wheel drive and a comprehensive suite of safety features, making it one of the safest and most practical used sedans you can buy. While minor electrical glitches and the long-term wear of its CVT warrant attention, this vehicle represents a sound investment for reliability-focused buyers seeking all-weather confidence and low operational stress.

Biggest Strengths

  • Standard Symmetrical All-Wheel Drive system's robustness
  • Subaru EyeSight Driver Assist Technology's efficacy and reliability
  • Strong structural integrity and proven crashworthiness

2021 Subaru Legacy — Known Trouble Spots

The systems that break first on the 2021 Subaru Legacy. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

1
Infotainment Systemminor
2
Lineartronic CVT (long-term)moderate
3
Wheel Bearingsmoderate
Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

Safety Recalls on the 2021 Subaru Legacy

3 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

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.

POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH

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.

What breaks on the 2021 Subaru Legacy?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Subaru Legacy — Year-by-Year Comparison

Compare KeepScores across nearby years of the Subaru Legacy. Click any year for its full report.

Competing 2021s Worth a Look

Similar class, similar year range — ranked by KeepScore.

Relevant Products for Your 2021 Subaru Legacy

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Frequently Asked Questions

Full Report

2021 Subaru Legacy

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

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Complete Owner's Guide

Already own one? Get the 13-chapter owner's guide with specs, service schedules, and fluid capacities.

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Final Step

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Just bought a 2021 Subaru Legacy? Keep it that way.

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