2026 Hyundai Ioniq 9 Engine Problems
- Complaints
- 2about this part
- Share
- 5%of 38 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 2 complaints about the engine of the 2026 Hyundai Ioniq 9, 5% of the 38 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.
“Driving on a public road with a 50 phone speed limit, I received an error message on my dash stating electrical failure, and then the car shut down and began to coast, I had use all my strength to turn the car towards the curb and coasted to a stop. I received an error message from multiple components and then the dash went blank.”
NHTSA complaint #11756108, filed 2026-08“Was driving down the highway when Check: electric vehicle system warning came on and car slowed suddenly and wouldnt go past 41MPH. Within a min, the car slowed down further and just as I was pulling on the shoulder. Car didnt have power to move after.”
NHTSA complaint #11736905, filed 2026-05Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 2 | 5% |
Other parts of the 2026 Hyundai Ioniq 9
20 complaintsFuel system
9 complaintsTransmission and drivetrain
6 complaintsForward collision avoidance
5 complaintsOther or unknown
5 complaintsVehicle speed control
4 complaintsSeats
3 complaintsLane departure
2 complaintsBody and structure
2 complaintsBrakes
1 complaintsSeat belts
1 complaintsTires
1 complaints
← All problems reported for the 2026 Hyundai Ioniq 9
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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