2020 Subaru Legacy Problems: 1 Issues Every Owner Should Know
2020 model year · 1,100+ owner reports · Updated April 2026
According to Au7o's analysis of 1,100+ owner reports, the 2020 Subaru Legacy has 1 documented known issues, with 1 rated critical. The most serious is CVT Transmission Failure ($200-$8,000 repair). The most commonly reported issue is CVT Transmission Failure with 1,100 owner reports. Across all issues, repair costs range from $200 to $8,000. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2010-2020 Subaru Legacy, the 2010+ Legacy uses the Lineartronic CVT (TR690 for 2.5L, TR580 for 2.5i base) which has widespread reports of premature failure, typically between 80,000-140,000 miles. Failures include chain stretch, torque converter shudder, valve body malfunction, and complete transmission failure. The 2010-2014 models are most affected. Subaru extended CVT warranty coverage to 10 years/100,000 miles. Symptoms often start with subtle judder during light acceleration and progress to complete loss of drive.
Common Symptoms
- Shudder during light throttle acceleration
- Delayed engagement when shifting from Park
- Loud whining from transmission area
- Loss of power under acceleration
- Transmission overheating warning
- Complete loss of forward or reverse gear
How to Fix
Perform CVT fluid exchange with Subaru Lineartronic CVT Fluid II. Apply latest TCM software calibration at dealer. For torque converter shudder, converter replacement ($1,500-2,500) is often sufficient. Full CVT replacement with Subaru remanufactured unit for complete failures. Check 10-year/100,000-mile warranty extension eligibility first.
What Owners Are Using
Parts and tips from 1,100+ owners who fixed this issue
- Tip
- Tip
- UpgradeCVT fluid specifically formulated for continuous variable transmissions (Valvoline CVT Transmission Fluid)
- UpgradeReplacement CVT transmission filter to maintain fluid cleanliness (ATP CVT Transmission Filter Kit)