2021 Hyundai Sonata Hybrid Electrical System Problems
NHTSA lists 25 electrical system complaints for the 2021 Hyundai Sonata Hybrid, 45% of all 55 complaints filed for the year. No related recall is listed, and the median mileage at failure is 24,000 miles.
- Electrical System complaints
- 25
- 45% of 55
- Crashes reported
- 0
- Fires reported
- 0
- Injuries reported
- 0
- Median mileage
- 24,000 mi
- Related recalls
- 0
Typical electrical symptoms owners report
- The 12-volt battery drains randomly and unlocks require the physical key instead of the fob or remote.
- Owners report the car powering off completely while parked or after use, needing a manual restart or a 12V reset button.
- A 'Check Hybrid System, Turn Engine Off' warning appears while driving, followed by loss of power and inability to accelerate.
- Dashboard lights and the infotainment screen flicker or go black at highway speed, along with erratic fuel efficiency readings.
- Some owners describe the vehicle shutting down mid-drive on the freeway, triggered by what dealers described as a fuse or battery issue.
- Dealerships in several cases could not replicate or diagnose the electrical fault during inspection.
When 2021 Hyundai Sonata Hybrid electrical complaints were filed
First complaint Oct 12, 2021, latest Aug 5, 2026.
Electrical System recalls for the 2021 Hyundai Sonata Hybrid
No safety recalls on record for this model year.
Electrical System complaints by Sonata Hybrid model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- Is the 2021 Hyundai Sonata Hybrid's electrical system a common complaint?
- Yes. NHTSA lists 25 electrical system complaints for the 2021 Sonata Hybrid, which is 45% of the 55 total complaints filed for that model year.
- Is there a recall for the 2021 Hyundai Sonata Hybrid electrical system?
- No related recall is listed in NHTSA data for this issue.
- At what mileage do electrical problems usually appear on the 2021 Sonata Hybrid?
- The median mileage at failure reported to NHTSA is 24,000 miles.
- Did the electrical issues cause any crashes or fires?
- NHTSA data shows 0 crashes, 0 fires, and 0 injuries linked to these electrical complaints.
- What symptoms do owners describe most often?
- Owners most often describe a draining 12-volt battery, random shutdowns requiring a manual restart, and a 'Check Hybrid System' warning followed by loss of power.