BestCarRank
Subaru

2021 Subaru LEGACY

Problems, Recalls & Reliability Report

Above Average

Quick Summary

The 2021 Subaru LEGACY has 43 owner complaints filed with NHTSA — that's 0.3x the segment average of 140. The most common issue is other problems (19% of all complaints), specifically: 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 . There are 3 recalls issued for this model year.

1 injury

43

Total Complaints

3

Recalls Issued

/5

Safety Stars

0.3x

vs Segment Avg

Known Problems(top 5 of 8)

OTHER

8 complaints
19%
  • 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
  • Info screen froze and didn't come back of for 5 minutes while driving
  • The trunk does not stay open leading to sudden closing on body and head for anyone trying to use the trunk. Leading to a concussion and multiple injuries. Dealership said to place a complaint as there has not yet been a recall for this issue. There is no warning prior to this issue occurring.
Typical onset: 50K miles Est. repair: $500

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

— NHTSA complaint filing

Recalls (3)

POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)08/07/2022

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.

Risk: An improperly secured drive chain may slip and break, causing a loss of drive power and increasing the risk of a crash.

Fix: 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.

Fuel Cost Calculator for 2021 Subaru LEGACY

Live EIA prices
Per year
$1,656
Per month
$138
Per mile
13.8¢
MPG
29
City driving (worst-case MPG)
$2,001/yr
Highway driving (best-case MPG)
$1,372/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today
Current
$4.00
5-year low
$2.78
5-year high
$5.01
Since 2021
+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2021 Subaru LEGACY

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.
Full coverage / year
$1,687
Full coverage / month
$141
Liability only / year
$611
vs US avg
+1%
How this estimate is calculated
US base full-coverage premium$1674
× state (US)1.00x
× vehicle class (sedan-midsize)0.96x
× theft risk1.00x
× safety rating1.00x
× vehicle age1.05x
= Full coverage estimate$1687

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Subaru LEGACY Service Intervals

Oil change
6K mi / 6 mo
Tire rotation
6K mi
Brake fluid
30 months
Transmission fluid
30K mi
Engine coolant
138K mi
Spark plugs
60K mi
Cabin air filter
15K mi
Engine air filter
30K mi
Differential (AWD/4WD)
30K mi

Boxer engines have specific oil consumption patterns — check oil monthly. CVT service every 30K is critical; skipping shortens life dramatically. AWD requires matched tire wear.

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Subaru New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)
3 yr / 36K mi
Powertrain
5 yr / 60K mi
Hybrid/EV battery
8 yr / 100K mi
Corrosion (rust perforation)
5 yr / unlimited mi
Roadside assistance
3 yr / 36K mi

These are the terms for a new Subaru. If you're buying a used 2021 LEGACY, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Subaru dealer for VIN-specific remaining warranty.

Estimated Repair Costs

OTHER(~50K mi)
$500
VISIBILITY(~50K mi)
$500
DRIVER ASSIST/CAMERAS(~50K mi)
$500
AIR BAGS(~50K mi)
$500
ELECTRICAL(~50K mi)
$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 43 owner complaints for this specific year, here's what to check or ask about:

  • OTHER: 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

    Typically appears around 50K miles. Repair cost ~$500

  • VISIBILITY: The contact owns 2021 Subaru Legacy. The contact stated while entering the vehicle, she noticed a crack on the passenger’s 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 local

    Typically appears around 50K miles. Repair cost ~$500

  • DRIVER ASSIST/CAMERAS: 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

    Typically appears around 50K miles. Repair cost ~$500

  • AIR BAGS: The contact owns a 2021 Subaru Legacy. The contact received notification of NHTSA Campaign Number: 24V227000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time

    Typically appears around 50K miles. Repair cost ~$500

  • RECALLS: Verify all 3 recalls have been completed — free at any Subaru dealer
  • General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints
43
Recalls
3
Fire reports
0
Crash reports
0
Injury reports
1
Segment avg
140

Check a Specific VIN

See recalls for YOUR 2021 Subaru LEGACY