Car battery keeps dying and is inadequately charged resulting in loss of electronics. The problem is a faulty DCM system.
Electrical system
2021 Subaru WRX Electrical problems
Owners have filed 2 complaints about the 2021 Subaru WRX's electrical system with NHTSA - 15% of all its complaints, most recently on May 26, 2026. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.
- Complaints
- 2
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Electrical complaints
Lifetime Tracking Data Displayed Incorrectly with higher data results. High rev's max speed 131mp. I have never gone over 89 mp. MANUFACTURER COMMUNICATION NUMBER: 09-79-21 Components: ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING NHTSA ID Number: 10201791 Manufacturer Communication Number: 09-79-21 Summary This bulletin announces availability of ECM reprogramming files to address isolated concerns of inaccurate values being displayed when accessing Lifetime Tracking Data using the Subaru Select Monitor and / or a Generic Scan Tool (GST). 1 Affected Product Vehicle MAKEMODELYEAR SUBARUWRX2021
Subaru WRX electrical complaints by year
WRX electrical problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data