2021 Hyundai Sonata Electrical System Problems
NHTSA lists 17 Electrical System complaints for the 2021 Hyundai Sonata, 13% of its 133 total complaints for the year. No related recall is listed for this problem area. Owners describe dashboard warning-light cascades, blower motor failures, and 12-volt battery drain.
- Electrical System complaints
- 17
- 13% of 133
- Crashes reported
- 0
- Fires reported
- 0
- Injuries reported
- 0
- Median mileage
- —
- Related recalls
- 0
Typical electrical symptoms owners report
- Multiple dashboard warning lights, battery discharge alerts, loss of power steering, and disabled safety systems activate together while driving.
- Turn signals work intermittently, sometimes stopping and restarting despite dealer replacement of the signal assembly.
- Infotainment and HVAC systems lose function together, with owners tracing the issue to fuse box or wiring connection problems, including a burnt fuse receptacle.
- Blower motor stops working, with some owners linking it to a cracked wiring harness that required a lengthy repair wait.
- Vehicle loses all power and shuts off while driving, then restarts normally after being turned off and on.
- 12-volt battery drains repeatedly within a short time after driving, even after dealer inspection and replacement attempts.
When 2021 Hyundai Sonata electrical complaints were filed
First complaint Oct 8, 2022, latest Aug 7, 2026.
Electrical System recalls for the 2021 Hyundai Sonata
No safety recalls on record for this model year.
Electrical System complaints by Sonata model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How common are electrical problems in the 2021 Hyundai Sonata?
- NHTSA lists 17 Electrical System complaints for the 2021 Sonata, which is 13% of the 133 total complaints filed for that model year.
- Is there a recall for the 2021 Hyundai Sonata electrical system?
- No related recall is listed in NHTSA data for this problem area on the 2021 Sonata.
- What electrical issues do 2021 Sonata owners report most?
- Owners describe simultaneous dashboard warning lights with loss of power steering, intermittent turn signals, blower motor and HVAC failures tied to wiring or fuse box issues, and repeated 12-volt battery drain.
- Have electrical issues caused crashes or fires in the 2021 Sonata?
- NHTSA data for this problem area on the 2021 Sonata shows 0 crashes and 0 fires reported.
- How does the 2021 Sonata compare to other years for electrical complaints?
- The 2021 Sonata's 17 electrical complaints and 13% share are lower than years like 2020 (23%) and much lower than 2024 (46%), based on NHTSA complaint data by model year.