2026 Hyundai Ioniq 9 Lane departure 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 lane departure 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.
“While driving on the freeway utilizing Highway Drive Assist, I suddenly received a warning on the heads up display stating that assisted systems were unavailable, at which point the Adaptive Cruise Control & Lake Keep Assist both deactivated. I pressed the button on the steering wheel to reactive the system and received conditions not met error. At this point, I placed my foot on the accelerator and it was completely unresponsive. I stabbed at hte accelerator as well as held it down without issue. Regenerative breaking also did not reactive. …”
NHTSA complaint #11705434, filed 2025-12“Occasionally while driving my IONIQ 9 in sunny conditions with glasses on while utilizing Lane Keep Assist and the Adaptive Cruise Control system the car flashes a Warning about keeping your attention on the road, and then continues on beeping and chiming before ultimately completely stopping in the middle of the road unless you disengage the Lane Keeping Assist and Adaptive Cruise Control. I believe the sensors on top of the Steering Wheel aren’t calibrated that great for people who wear glasses, as this issue does not occur when I take my glasses off. …”
NHTSA complaint #11689514, filed 2025-09Lane departure: 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 complaintsEngine
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