Model year 2026 · first-year watch
2026 Hyundai Ioniq 9, day 462
- 36complaints since Jun 27, 2025
- 3recalls
- 0involved a crash
- 8,000median miles at failure
Newest report Sep 22, 2026 · checked Oct 2, 2026
Changed since August
- 3 new complaints in September, mostly about windshield and wipers and structure.
- Recall 26V-588 on seats, filed Sep 11, 2026.
- Nothing filed yet on sticky steering, transmission failure, engine failure or fire.
- 16th most complaints of the 79 2026 models on this site.
What's been reported
NHTSA's own component codes. One report can cite several.
- Electrical20
- Collision avoidance9
- Fuel and propulsion9
- Transmission and drivetrain6
- Speed control4
- Other3
- Lane keeping2
- Seats2
Problems so far
- Battery dies or the car will not start 7 reports
- Engine stalls or loses power while driving 5 reports
- Infotainment, screen or backup camera fails 5 reports
Recent reports
“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.”
Filed Aug 11, 2026
“ICCU failure. Warning lights came on in the dash and diagnostic codes were available in my Hyundai app. My family and I had just gotten back from a road trip and if the ICCU would have failed while we were on the trip we would have been stranded and it would have been during the heat wave. The vehicle is currently in the service department waiting for the part to come in.”
Filed Jul 14, 2026
“I was driving at 35 mph speed on a straight road and the car automatically activated emergency steering and pushed towards right I had to jerk the steering towards left to prevent any accidents. No adverse event occurred however this was unnerving experience.”
Filed Jun 21, 2026
“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.”
Filed May 10, 2026
At a glance
- Next to other model years
- The 2026 is too new for a fair per-year comparison, and no model year of the Ioniq 9 just before it has enough complaints to set beside it.
- Top problem
- No problem dominates. The largest, dead battery, covers 7 of the 36 complaints (19%), and stalling is next with 5 (one complaint can fall under more than one problem, so these overlap). Too few of the dead battery reports give a mileage to say when it starts.
- Crash, fire and injury reports
- 3 of the 36 complaints (8%) report a crash, a fire or an injury, a little above the 6% typical of vehicles on this site.
- Recalls behind the top problems
- 3 recalls are on file, but no problem here has enough reports to set against them.
- When owners filed
- Every complaint so far came in during 2025. So far in 2026, 32 more have come in.
Service bulletins for the 2026 Hyundai Ioniq 9
Hyundai filed 17 bulletins and other notices with NHTSA that list the 2026 Hyundai Ioniq 9. 2 of them deal with a problem owners have reported on this car, 2 of those a warranty extension. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Engine stalls or loses power while driving 1 bulletin · 5 complaints
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.
Infotainment, screen or backup camera fails 1 bulletin · 5 complaints
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.
Recalls
Whether your car is included depends on its VIN. Check yours at nhtsa.gov/recalls.
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 and remedy
Remedy: 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 November 9, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 307. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on September 12, 2026.
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 and remedy
Remedy: 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.
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 and remedy
Remedy: 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.
All 3 recalls on the 2026 Hyundai Ioniq 9, with the owner complaints on each recalled system
Guide Seeing this on your own car? How to file a complaint with NHTSA
The log
Complaints by the month NHTSA received them, newest first. Blue bars mark a month with a recall or an investigation.
Questions
What is the most common problem on the 2026 Hyundai Ioniq 9?
Dead battery, with 7 of the 36 complaints.
At what mileage do 2026 Hyundai Ioniq 9 problems start?
Of the 6 complaints that give a mileage, a quarter came by about 4,000 miles and half by about 8,000.
How many 2026 Hyundai Ioniq 9 complaints involve a crash, fire or injury?
3 of them (8%). The typical vehicle on this site is at 6%.
Is there a recall for dead battery on the 2026 Hyundai Ioniq 9?
Yes, NHTSA lists a recall on the same system: 26V-068. Its summary says which failure it covers, and that isn't always the one owners describe.