2026 Hyundai Ioniq 9: problems, recalls and reliability
3 recalls and 35 owner complaints on record; the weakest area is electrical system (39% of complaints).
Data updated weekly · 9 new complaints in the last 90 days · latest recall Sep 2026
All counts are reports filed with NHTSA in the United States - US market only, not worldwide totals.
Common problems
Computed from 35 owner complaints filed with NHTSA for this exact model year.
“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 and rotated the original back tires to the front of the car as part of the repair/replacement.”Owner report · Tires · Aug 2026
“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.”Owner report · Electrical System · Aug 2026
“An Integrated Charging Control Unit (ICCU) failure halts the vehicle's ability to charge and power the 12-volt battery. When it fails, the car can no longer keep the 12V battery charged. This drains the 12V system, potentially causing a sudden loss of motive power while driving or a "bricked" car that won't start. The presents a safety problem because it happened while I was driving and the car slowed down to a halt in a high speed traffic area. This is a well known issue with Hyundais and Kias that share the same EV platform. The car was towed to the dealer on 7/21/2026 and was confirmed as an ICCU issue after diagnostics.”Owner report · Electrical System · Jul 2026
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“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.”Owner report · Electrical System · Jul 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.”Owner report · Forward Collision Avoidance · Jun 2026
“The Integrated Charging Control Unit (ICCU) on this vehicle produces loud whirring noises when charging at 80% or above. This has been documented in writing to the service department. The ICCU defect is a known systemic issue across the Hyundai and Kia EV platform. The vehicle is currently scheduled to return to the dealer for this and other defects. This is the second major service visit on a vehicle leased in March 2026 that was already out of service 28 consecutive days for a sunroof failure.”Owner report · Fuel/Propulsion System · May 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.”Owner report · Electrical System · May 2026
“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 car now because she associates it with how uncomfortable this car seat is. I cannot stress the emotional distress this car seat has caused me and my baby. Any product like this should not be on the market”Owner report · Other/I Am Not Sure · Apr 2026
“Vehicle was operating perfect then got alert indicating electrical system fault but vehicle still drove (was just 2 miles from home ) but then alarms sounded and just able to pull off road before vehicle died. Checked and see code DTC PIA9096 and car was inoperable after. Towed to dealer for replacement of ICCU module. They acknowledged they have seen this before. I was on a local road, but if this happened on a highway, would have been more hazardous!”Owner report · Power Train · Apr 2026
“Failure of the ICCU during normal driving conditions. The vehicle was controllable, and driver was able to bring the vehicle to a safe location as vehicle performance deteriorated. The failure left the driver and passenger without power during a storm in an unfamiliar area. After about 45 minutes of waiting for roadside assistance, the vehicle lost all auxiliary power and no functions were available (including lights and door lock controls). Vehicle was towed to a local dealership, where issue was diagnosed and part has been replaced. The failure was not preceded by any significant event. Warnings present on the driver's information panel while driving.”Owner report · Power Train · Apr 2026
When filing, owners marked a crash in 0 of these complaints and injuries in 4 - self-reported to NHTSA, not verified accident statistics.
Recalls - 3 campaigns
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.
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.
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.
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.
Check your exact Ioniq 9 by VIN
Recalls and equipment differ between individual vehicles. Decode your VIN to see what applies to yours.
Open VIN decoderFrequently asked questions
Is the 2026 Hyundai Ioniq 9 reliable?
NHTSA has 35 owner complaints and 3 recall campaigns on record for the 2026 Hyundai Ioniq 9. The most complained-about area is electrical system (39% of complaints).
At what mileage do 2026 Hyundai Ioniq 9 problems usually appear?
Half of the complaints that mention mileage were filed at 12,000 miles or less.
Does the 2026 Hyundai Ioniq 9 have open recalls?
3 recall campaigns have been issued, the latest concerning seats. Check your specific vehicle by VIN - recall repairs are free at franchised dealers.
Source: NHTSA recall campaigns and owner complaints (public domain). Counts reflect reports on file and are not a defect rate.