"How reliable is the 2021 Subaru Legacy?"

"Based on 42 NHTSA complaints, the 2021 Subaru Legacy has a median complaint mileage of 5300 miles. The most common issue is UNKNOWN OR OTHER."

"What are common problems with the 2021 Subaru Legacy?"

"The most frequently reported component in NHTSA complaints for the 2021 Subaru Legacy is UNKNOWN OR OTHER, accounting for a significant portion of the 42 total complaints filed."

2021 Subaru Legacy: Reliability Data

Source: NHTSA — 42 complaints

Total Complaints

5,300mi

Median Mileage

UNKNOWN OR OTHER

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

5,000 25th Percentile

5,300 Median Mileage

60,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

UNKNOWN OR OTHER

AIR BAGS

ELECTRICAL SYSTEM

VISIBILITY/WIPER

POWER TRAIN

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

FORWARD COLLISION AVOIDANCE: WARNINGS

SERVICE BRAKES

VISIBILITY:WINDSHIELD

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"ON JANUARY 7, 2020 AT APPROXIMATELY 8AM, I WAS DRIVING MY CAR WHICH HAD BEEN WARMED UP AND DRIVING FOR APPROXIMATELY 15-20 MINUTES WHEN MY WINDSHIELD SPONTANEOUSLY CRACKED ON THE DRIVERS SIDE ABOUT 8 INCHES OFF CENTER. THERE WAS NO VEHICLE IN FRONT OF ME AT THE TIME AND NO VISIBLE OR AUDIBLE DEBRIS ..."

"The contact owns 2021 Subaru Legacy. The contact stated while entering the vehicle, she noticed a crack on the passengerâs side of the front windshield that expanded to the center of the windshield. The contact was unsure what caused the crack in the windshield. The contact reached out to the loca..."

"There seems to be an issue with the infotainment system. The system will randomly turn off which also turns off the safety features. I would like to associate this while CarPlay is in use, but I have witnessed it happen without CarPlay. Subaru has already replaced the head unit under warranty, but t..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28