2026 Hyundai Ioniq 9 problems, complaints & recalls
Most-reported problem areas: Electrical System (7) · Fuel/Propulsion System (6) · Power Train (5)
Safety recalls (3)
Seats:mid/Rear Assembly:power Adjust 2026-09-11 · campaign 26V588000 · 5,360 vehicles
Defect: Hyundai Motor America (Hyundai) is recalling certain 2026 Ioniq 9 vehicles equipped with a Limited, Calligraphy, or Calligraphy Design trim package. The second-row power seats may fail to detect a person. As a result, the seats may continue to move after contacting a person during powered seat functions, such as automatic power fold-and-stow.
Risk: A person, especially a child, may become trapped by a rear powered seat, increasing the risk of injury.
Fix: Owners are advised to exercise caution when operating the second-row power seat functions until the repair is performed. Children are advised not to be in the rear seats or near the rear seating area during power-folding operation. The seat software will be inspected and updated over-the-air (OTA) or by a dealer, as necessary, free of charge. Owner notification letters are expected to be mailed October 1, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for t
Suspension:critical Fasteners 2026-05-18 · campaign 26V314000 · 172 vehicles
Defect: Hyundai Motor America (Hyundai) is recalling certain 2025 Ioniq 5 and 2026 Ioniq 9 vehicles. The fasteners for the rear suspension may loosen and detach, which can result in a loss of vehicle control.
Risk: A loss of vehicle control increases the risk of a crash.
Fix: Dealers will inspect and replace the rear suspension fasteners and perform a rear vehicle alignment, as necessary, free of charge. Owner notification letters are expected to be mailed July 17, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 303. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 20, 2026.
Electrical System:propulsion System:traction Battery 2026-02-05 · campaign 26V068000 · 27 vehicles
Defect: Hyundai Motor America (Hyundai) is recalling certain 2025-2026 IONIQ 5 and 2026 IONIQ 9 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
Risk: An electrical short in the high voltage battery system increases the risk of a fire.
Fix: Dealers will inspect and tighten the bus bar retention bolts and replace the battery system assembly, as necessary, free of charge. Owner notification letters were mailed April 3, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 294. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 7, 2026.
Service bulletins (19)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Electrical System 2026-10-27 · 26-GI-003H · Service Bulletin/Repair Instructions
this bulletin provides information related to the navigation and head unit software changes introduced in the 2026 2nd navigation map and software update. the changes may vary depending on vehicle type, model, and navigation system. refer to the 2026 2nd navigation map and software update key improv
Back Over Prevention: Warnings 2026-10-15 · 26-GI-004H · Service Bulletin/Repair Instructions
some hyundai vehicles may be equipped with a parking distance warning (pdw) sensor(s) that may trigger various dtcs and display warning messages on the instrument cluster, resulting in the pdw sensor(s) failing to detect nearby objects or triggering multiple false alarms. this condition may be a res
Fuel/Propulsion System 2026-08-19 · 26-EV-006H TSB · Service Bulletin/Repair Instructions
some ioniq 9 (me1a ev) vehicles may illuminate a mil warning light with dtc p0aa600 and/or p1aa800 with limited charging capabilities. this bulletin provides instructions to replace the battery system assembly (bsa) if necessary.
Electrical System 2026-08-11 · 26-01-053H-1 TSB · Warranty Program/Extension
certain ioniq 9 (me1a ev) vehicles may exhibit a data communication unit (dcu) software error due to the internal timer initialization logic not being implemented. the dcu module may shut down telematics services after one year. this bulletin provides instructions to perform a software update for th
Electrical System 2026-07-03 · 26-01-053H DCS · Warranty Program/Extension
certain palisade hybrid (lx3 hev) vehicles may illuminate the malfunction indicator lamp (mil) and display a false “check hybrid system” warning message after use of bluelink remote start following extended parking periods. related dtcs associated with the mil include u116087, u016487, u100787, u012
Electrical System 2026-07-03 · 26-01-053H TSB · Warranty Program/Extension
certain ioniq 9 (me1a ev) vehicles may exhibit a data communication unit (dcu) software error due to the internal timer initialization logic not being implemented. the dcu module may shut down telematics services after one year. this bulletin provides instructions to perform a software update for th
Showing the 6 most recent of 19 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-29 · Seats“while the vehicle was stationary, the driver pressed a saved profile button on the integrated memory system (ims) on the door panel to adjust the driver's seat. a passenger was seated directly behind the driver in the second row. upon pressing the memory button, the motorized driver's seat began moving backward toward the saved position. whether du…”
2026-09-30 · Unknown Or Other“the door sensor on driver side does not operate, when touched does not open or close. however, the door sensor on passenger side works well. bought car and noticed the defect in one week of ownership, after two months of waiting and diagnosing by dealership, they still were unable to find the solution.…”
2026-09-22 · Structure:body:door:handle:exterior · 8,000 mi“the contact owns a 2026 hyundai ioniq 9. the contact stated that while triggering the front driver’s side exterior door handle sensor, the auto-flush door handle mechanism retracted without anti-pinch detection while the contact’s fingers and the daughter's fingers were positioned between the handle and the door panel on two separate occasions. the…”
2026-09-11 · Visibility/Wiper“on xxx, while driving my 2026 hyundai ioniq 9, the front windshield wiper system completely stopped operating. i activated the windshield washer because the windshield was dirty. washer fluid sprayed normally onto the windshield, but the front wipers did not move. i then tried auto, low, and high settings, and none of them worked. this created a …”
2026-09-11 · Unknown Or Other“on xxx, i experienced a safety-related problem with a rear door on my 2026 hyundai ioniq 9. while the vehicle was parked, i attempted to open the rear door from inside the vehicle, but the door would not open. the child lock was believed to be off at the time. i attempted to operate the interior door handle, but the rear door remained locked and …”
2026-08-30 · Tires“when reaching speeds of approximately 55 to 60 mph, the car would begin to shake and the steering wheel would excessively begin shaking. you did not feel like you had great control of the car. the front two tires required replacing due to the foam being detached/mangled within the tires. the dealership put the new tires onto the back of the car an…”
2026-08-20 · Other/I Am Not Sure“we bought two of these car seats and the base on account we liked the feature that the car seat can rotate in the base... this car seat is unusually upright on its own and i believe the base insert makes it worse. i am a first time mom and i didn't realize how bad the ergonomics of this car seat are until recently, but my baby absolutely hates the …”
2026-08-19 · Fuel/Propulsion System“i am reporting serious repeated safety failures with my 2026 hyundai ioniq 9 involving unintended emergency braking and sudden loss of propulsion. while traveling approximately 70–75 mph northbound on i-15, the vehicle suddenly displayed an emergency braking warning and aggressively slowed despite no apparent obstacle or traffic condition requiring…”
2026-08-15 · Fuel/Propulsion System“on xxx i had two warnings pop up on the car to check electric vehicle system while driving. the car was still driving fine, so i took it into the dealer (alm hyundai in [xxx]) within a few days to have general maintenance and for the dtcs to be reviewed. the ev tech was 2 weeks out, so they just briefly reviewed the code and said it was safe to dri…”
2026-08-11 · Power Train“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.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.