2021 Hyundai Ioniq Hybrid Other or unknown Problems
- Complaints
- 3about this part
- Share
- 23%of 13 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the other or unknown of the 2021 Hyundai Ioniq Hybrid, 23% of the 13 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“When driving down the highway the cruise control will turn off and it is during sunny days and has happened many times. The check lane following assist LFA system notice comes on, the smart cruise ctrl conditions not met notice come on, the check smart cruise control system notice comes on, auto hold, EPB and two triangles appear. Happened 4/2, 4/20, 6/9, 6/17. I have told service about it but they say there isn’t any problem.”
NHTSA complaint #11480581, filed 2022-08“On a recurring basis, the warning lights come on for”AUTO HOLD” and “EPB” or emergency parking brake. Car continually beeps and gives warning until car is reset. During this time, the cruise control will turn off, causing safety issues during travel. Also, the other safety features seem to stop working during the time this warning is activated. Emergency stop, et cetera. Only activated when vehicle is operating under highway mph. Typically local roads with stops/starts trigger this issue. Mechanics have no idea what is wrong with vehicle warning. …”
NHTSA complaint #11588365, filed 2024-05Other or unknown: other model years
Other parts of the 2021 Hyundai Ioniq Hybrid
7 complaintsBrakes
3 complaintsForward collision avoidance
3 complaintsVehicle speed control
2 complaintsBack-over prevention (rear camera)
1 complaintsEngine
1 complaints
← All problems reported for the 2021 Hyundai Ioniq Hybrid
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology