YearToAvoid

2021 Subaru Outback Electrical System Problems

NHTSA lists 77 electrical system complaints for the 2021 Subaru Outback, 26% of its 296 total complaints, with a median failure mileage of 2,150 miles. No related recall covers this issue. Most reports describe unexplained battery drain shortly after purchase.

Electrical System complaints
77
26% of 296
Crashes reported
2
Fires reported
1
Injuries reported
1
Median mileage
2,150 mi
Related recalls
0

Typical electrical symptoms owners report

  • Battery drains fully and won't hold a charge within the first few months of ownership, often under 1,000 miles.
  • Vehicle needs jump-starting multiple times despite no interior lights being left on.
  • Owners report being stranded and needing roadside assistance or a tow after the battery died unexpectedly.
  • Dealers replace the battery but some owners report the drain recurring afterward.
  • One case involved the engine block catching fire while the vehicle was parked and turned off, with no injuries but total loss of the vehicle.

When 2021 Subaru Outback electrical complaints were filed

First complaint Feb 13, 2021, latest Aug 26, 2026.

2021 Subaru Outback electrical system complaints: complaints filed per month7Feb 2021Jul 2021Dec 2021Aug 2022Apr 2023Nov 2023Aug 2024Jul 2026
77 complaints filed with NHTSA from Feb 2021 to Aug 2026; peak Sep 2022 (7).

Electrical System recalls for the 2021 Subaru Outback

No safety recalls on record for this model year.

Electrical System complaints by Outback model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 201061 (17%)
  2. 2011165 (25%)
  3. 201251 (17%)
  4. 201329 (10%)
  5. 201437 (18%)
  6. 2015130 (25%)
  7. 2016311 (48%)
  8. 2017396 (43%)
  9. 2018270 (33%)
  10. 2019367 (35%)
  11. 2020267 (30%)
  12. 202177 (26%)
  13. 202254 (12%)
  14. 202323 (26%)
  15. 202419 (19%)
  16. 202516 (20%)

Frequently asked questions

How common are electrical system complaints on the 2021 Subaru Outback?
NHTSA logged 77 electrical system complaints for the 2021 Outback, which is 26% of the 296 total complaints filed for that model year.
Is there a recall for the 2021 Subaru Outback electrical system?
No. NHTSA's data shows no related recalls tied to this electrical system complaint category for the 2021 Outback.
At what mileage do 2021 Outback electrical problems usually appear?
The median mileage at failure reported to NHTSA is 2,150 miles, and several owners reported issues within the first few hundred to a few thousand miles of ownership.
What is the main electrical complaint on the 2021 Subaru Outback?
The dominant pattern is unexplained battery drain, where owners report a dead battery soon after purchase despite no lights being left on, sometimes requiring repeated jump-starts or a battery replacement.
Were there any fires or crashes linked to electrical complaints?
NHTSA data for this category on the 2021 Outback lists 1 fire, 2 crashes, and 1 injury among the 77 electrical system complaints.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.