2020 Subaru Legacy problems & reliability
121 owner complaints filed with NHTSA for the 2020 Subaru Legacy, alongside 6 safety recall campaigns. Last verified Sep 23, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several components.
1 complaint report injuries (1 injured).
Federal crash records (FARS 2020–2023): 2020 Subaru Legacy vehicles were involved in 6 fatal crashes with 4 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Visibility/wiper → | 57 | 47% |
| Unknown / Other | 26 | 21% |
| Electrical System → | 15 | 12% |
| Visibility | 9 | 7% |
| Forward Collision Avoidance | 7 | 6% |
| Power Train | 7 | 6% |
| Engine | 4 | 3% |
| Vehicle Speed Control | 4 | 3% |
| Lane Departure | 2 | 2% |
| Service Brakes | 2 | 2% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 18 reported components →Mileage when problems occurred
Among the 50 complaints that included a usable odometer reading, the median reported incident mileage was 6,045 miles (middle 50% between 3,171 and 12,000 miles).
Complaints by incident year
What owners report
“While driving there is a loss of power, the battery fails, electronic components shut down and car stops. Has happened intermittently. Replaced battery. This is a significant safety issue happened on freeway near exit ramp, in parking lot in driveway, everything cuts out. Opened hood and seems to be battery terminal…”
Unknown / Other · filed Jun 20, 2026
“Driver's seat structurally unstable due to factory-installed welded nut shearing off the seat rail anchor at approximately 32,000 miles. Confirmed by Napleton Subaru technician on video. Physical component in owner's possession. Failure is consistent with prior Subaru seat rail weld recalls. This affects seat…”
Seats · filed Apr 1, 2026
“The contact owns a 2020 Subaru Legacy. The contact stated that during inclement weather, the front driver and front passenger’s side power windows failed to automatically roll up as intended. The contact was forced to hold the power window button to slowly roll the windows up. The vehicle was taken to a dealer, where…”
Visibility · filed Nov 5, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
587 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2020 Subaru Legacy. The 10 most recent:
This bulletin announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units utilized in the models listed.This is an…
15-261-20R · Service Bulletin/Repair Instructions · issued Aug 31, 2026
This bulletin provides a procedure to address customer concerns of surface rust accumulating in the top center retaining nut area of the front strut mounts. This is an revised version of the original bulletin.
05-62-18R · Service Bulletin/Repair Instructions · issued Aug 31, 2026
This Announcement provides diagnostic assistance for CVT issues.
SubaruNet Announcement (C · Other · issued Aug 21, 2026
This bulletin provides guidance when diagnosing chain slip, judder, shudder, and hesitation concerns on the TR580 model CVT transmissions used in the models listed.
16-158-26 · Service Bulletin/Repair Instructions · issued Aug 20, 2026
This service bulletin outlines the diagnostic and repair procedure for white smoke emitted from the exhaust after startup. This is an revised version of the original bulletin.
02-196-26R · Service Bulletin/Repair Instructions · issued Aug 20, 2026
This Service Information Bulletin announces the release of a new diagnostic assistance application for TR690 and TR580 CVT-equipped vehicles. This is an revised version of the original bulletin.
16-154-25R · Service Bulletin/Repair Instructions · issued Aug 20, 2026
This bulletin announces availability of new reprogramming files developed to address SYMPTOM 1: A jerk or judder sensation felt from the powertrain during braking with the air conditioning on. SYPMTOM 2: A shudder is…
16-150-24R · Service Bulletin/Repair Instructions · issued Aug 20, 2026
This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw (dark/standby current) in vehicles experiencing battery drain when the ignition is off, leading to no-start conditions or…
15-308-23R · Service Bulletin/Repair Instructions · issued Aug 20, 2026
This Bulletin provides updated diagnostic procedures to follow and a brief questionnaire to complete when diagnosing an alleged Chain Slip condition on the TR580 and TR690 model CVT transmissions used in the models…
16-132-20R · Service Bulletin/Repair Instructions · issued Aug 20, 2026
This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. (This is an revised version of the original bulletin.)
15-304-22R · Service Bulletin/Repair Instructions · issued Aug 13, 2026
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2020 Subaru Legacy has 6 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2020 Subaru Legacy?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Among complaints with usable mileage, the median reported incident mileage was 6,045 miles. This does not predict when a particular vehicle will develop a problem.