Hyundai Ioniq Complaints

179 consumer complaints on file.

#11671675July 7, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
I own a 2017 Hyundai Ioniq Hybrid VIN: [XXX] that is covered under Recall 232 (NHTSA 22V-459) related to a defective Power Relay Assembly that poses a fire risk. I brought this issue to Hyundai 3 years ago and was told my vehicle was serviced. That turned out to be false. Recently, my car stalled on the road due to the exact electrical issue covered in Recall 232. I had it diagnosed by an independent mechanic, who confirmed it’s tied to the recall. I had the vehicle towed to a Hyundai dealership to have it repaired, but they: •Refused to prioritize the recall inspection •Attempted to charge me $230 for diagnostics •Told me it would take a week or more just to inspect the vehicle •Denied the urgency of the recall, despite the known fire hazard I informed the dealership service manager Tom Swire I was recording, and he still refused to put his denial in writing. I have the recording. Due to their refusal, I was forced to tow the vehicle to a second dealership at my own expense. Hyundai Corporate has opened a case file, but told me I must wait 2–3 days just to speak with a case manager despite this being a federally mandated safety recall tied to real-world safety fire risk. I am requesting NHTSA review this case and hold Hyundai and its dealership accountable for failing to honor Recall 232 within a reasonable and safe timeframe. I am also seeking reimbursement for towing and other out-of-pocket costs caused by their mishandling of this urgent safety issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11665873June 9, 2025
SERVICE BRAKES, ENGINE, STEERING
THE 12V ION BATTERY SYSTEM PART NUMBER 37507-G2120 (ICCU) BATTERY FAILED WHILE DRIVING, CAUSING GAS ENGINE TO TURN OFF, WHICH CANCELS POWER BRAKING AND STEERING, MAKING VEHICLE IMPOSSIBLE TO CONTROL. READ MANY REPORTS ON REDDIT AND IONIQ FORUMS OF THIS HAPPENING. NO. IT IS UNOPERABLE THERE WAS NO WARNING WHAT SO EVER. NO LIGHT, NO SYMBOL, NOTHING. WAS TRAVELING 40 MPH ON A BUSY ROAD WITH FAMILY, DURING A LANE CHANGE THIS HAPPEND AND THE VEHICLE TURNED OFF COMPLETELY. I COULD NOT CONTROL VEHICLE, AND WENT INTO A DITCH. IN THE PROCESS WE WERE NEARLY SIDE SWIPED BY A LARGE PICK UP TRUCK WHOM ALSO WENT IN DITCH. THE 12V BATTERY WAS DEAD COMPLETELY, WOULD NOT START THE GAS ENGINE. JUST WAS DEAD. IM LUCKY TO BE HERE TELLING OUR EXPERIENCE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11659724May 8, 2025
ENGINE
The contact owns a 2021 Hyundai Ioniq Hybrid. The contact stated that upon depressing the accelerator pedal, there was an abnormal ratting sound coming from the vehicle, and the vehicle failed to accelerate as needed. The contact stated that the check engine and oil warning lights were illuminated on the instrument panel. The vehicle was taken to a dealer where the vehicle was diagnosed with connecting rod bearing failure. The contact was then provided an estimate for an engine replacement. The manufacturer was also notified of the failure and the contact was provided a case number. The vehicle remained in the possession of the dealer and was not yet repaired. The failure mileage was 73,020.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11658566May 2, 2025
ELECTRICAL SYSTEM, ENGINE, STEERING
I have had issues with the car losing speed and start to flutter. The last time it did this it locked up my steering wheel and engine cut off this has been an ongoing issue with this car only had it less than a year and the dealership cannot remedy the issue there is some kind of electrical issue because all lights come on car has less than 50k moles on it this is my 5 visit to the dealership with no resolution have contacted the manufacturer
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652755April 4, 2025
ELECTRICAL SYSTEM
The contact owns a 2020 Hyundai Ioniq. The contact stated that while driving at undisclosed speeds, the vehicle stalled. No warning lights were illuminated. The contact was able to restart the vehicle. The vehicle was taken to the dealer where it was diagnosed and determined that the battery had overheated. The vehicle was not repaired. The contact stated that on a separate occasion, while driving at undisclosed speeds, the vehicle stalled. No warning lights were illuminated. The vehicle was taken back to the dealer; however, no cause for the failure was found. The contact stated that on the way home, there was an abnormal ticking sound was coming from the vehicle. The contact stated that the electrical system on the vehicle had failed, and the doors and the trunk failed to open. No warning lights were illuminated. The vehicle was taken to the dealer; however, the contact was unsure if the vehicle was repaired. The vehicle remained at the dealer and had not been driven since the failure. The manufacturer was notified of the failure. The failure mileage was approximately 22,400.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650058March 24, 2025
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
I leased the vehicle in 03-2021 and within the first year took the car back to the dealer 3 times for complaint on braking system. The brake pedal would loose pressure and stopping distance would extend further than anticipated. the dealer consistently told me that they could not duplicate the problem. now has gotten to the point that EBP light and HOLD light stay on steady and red Brake light flashes, due to this the smart cruise control and crash avoidance system become inoperable. Recently became aware that this issue is known to Hyundai and they have TSB for this issue, TSB # 23-BR-001H which describes the problem with rear caliper harness contamination with moisture. now that my vehicle has passed the 36K miles warranty, dealer wants to charge about $2000 for repairs. Currently have 39685 miles on the vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649909March 22, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM
The "Auto Hold and EPB" yellow indicator light constantly turns on, which, according to the owner's manual, suggests a sensor issue. When I press Auto Hold after starting the car, the light comes on immediately. Even if I don’t press the Auto Hold button, the light still turns on. Yesterday, after driving approximately 9 miles, the light came on again and began beeping every 7 to 8 minutes while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648730March 17, 2025
UNKNOWN OR OTHER
Car has two horns, both STOPPED working completely about 2 1/2 years ago and were replaced by the Hyundai dealer in Florence, SC. High pitch horn failed again about 1 year ago, and low pitch horn has now failed. Local Hyundai dealership in Pensacola, FL npow wants $800 to replace what should be fully covered. Car now has 75,00 miles so they say it us out of warrenty. But, a safety issue on a known problem (per Hydai frum on line and personal experience) should be fully covered by Hyundai.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641793February 10, 2025
ENGINE
On December 2nd 2024, I was driving my lovely 2022 Hyundai Ioniq Hybrid to home. All of a sudden, my car started shaking and popped out the engine sign light and other lights on the dashboard. Car moved straight up to about a distance of 50 meters and stopped on the rod side. This incident happened on the residential street not on the Highway. I could have been killed if this incident had happened on the Highway. I feel I’m lucky and blessed because I’m alive today. But car is still in Hyundai car dealership under repair. Hopefully my car repair cost will get covered under manufacture warranty. Hopefully, the whole measures for the engine defects or improvements team of Hyundai Ioniq Hybrid manufacturing engineers may be taken relook or recall so that thousands if not millions of drivers driving Hyundai Ioniq Hybrid may be in safe in the near future. Thank you
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637638January 22, 2025
ELECTRICAL SYSTEM, SERVICE BRAKES
Electric Parking Break and Auto Hold lights, with system disengage. History of electrical short in codes system. Falls under Hyundai technical service bulletin # 23-BR-001H. Dealer ship refuses to repair if lights are not currently on. According to bulletin must be repaired if on or in history. Same Issue as NHTSA # 11617668 and NHTSA# 11633119
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11634881January 8, 2025
FUEL/PROPULSION SYSTEM, VEHICLE SPEED CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
When approaching a turn, I let off the accelerator but the car didn’t stop accelerating. Instead, it gently kept accelerating. I applied the brakes and the car started slowing down but not at the same rate I was applying brake pressure. Therefore I floored the brakes to try coming to a complete stop. Sadly, the cars ABS system did not engage, half of the car hopped over the curb at about 20 mph. I was able to steer the car back onto the road where it finally came to a stop but acted like it wanted to keep going until full blackout power loss happened. The car was deemed a total loss by my insurance company American Family. Essentially, the vehicle malfunctioned causing the accelerator to stick which caused the car to be harder to control than designed. The car malfunctioned by not engaging the ABS system as well. There is a recall on this exact problem for the 2017-2019 model but not for my 2020 even though it was manufactured during that campaign. It all happened very quickly and I was very lucky this did not involve another vehicle.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11633119December 30, 2024
SERVICE BRAKES
EPB and auto hold lights come on intermittently with no user input or obvious reason. This does not occur every time that the vehicle is driven and does not have an obvious cause nor pattern. When issue appears, it may sometimes but not always be resolved by parking, then restarting the vehicle. After the issue begins, there is an audible beep and an alert/warning flashes for less than a second within the instrument cluster. The audible beep and screen flashing occurs rapidly and repeatedly after appearing. This appears to be the same issue as NHTSA ID 11617668 Per my own research, other owners of this vehicle have had the same issue, as noted in this forum thread: [XXX] Additionally, the solution according to other owners of this vehicle is listed in Hyundai's TSB 23-BR-001H (listed in NHTSA ID 10235346 from April 7 2023 as MC-10235346-0001), which is listed at [XXX] . This TSB's document does include the 2022 Hyundai Ioniq Hybrid, though the NHTSA listing erroneously lists only the 2019-2021 models as being affected. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630733December 14, 2024
STRUCTURE:BODY
Driving along the highway at highway speed, the sunroof exploded over our head. The glass blew outward from the center of the sunroof. There was nothing the hit the glass.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630538December 13, 2024
HYBRID PROPULSION SYSTEM
The contact owns a 2017 Hyundai Ioniq Hybrid. The contact stated while driving at undisclosed speeds, several unknown warning lights illuminated, and the vehicle started to lose motive power. The contact pulled over and shut off the vehicle but was unable to restart the vehicle. Upon investigation, the contact discovered that the vehicle was included in NHTSA Campaign Number: 22V459000 (Hybrid Propulsion System). The vehicle was then towed to the dealer to be repaired; however, the contact was informed that the battery management system was defective and needed to be replaced. The contact was informed that the vehicle was out of warranty and was provided an estimate for the repair. The manufacturer was notified of the failure and referred the contact to the Better Business Bureau for assistance. The vehicle remained with the dealer unrepaired. The failure mileage was 12,903.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627337November 25, 2024
AIR BAGS
The contact owned a 2018 Hyundai Ioniq Hybrid. The contact stated while driving 75 MPH with her aunt in the front passenger's side seat, another vehicle suddenly merged into the contact's lane, causing the passenger's side of the vehicle to crash into the driver's side of the other vehicle. The vehicle then veered into a ditch on the right side of the road. The air bags failed to deploy. There was no warning light illuminated. The contact and her aunt exited the vehicle through the rear doors because the front doors were blocked by the bushes. The contact sustained pain in the right knee and ankle. The contact's aunt sustained pain in the right knee. The ambulance transported both passengers to the hospital, where they were informed that no other injuries were found. A police report was filed, but the contact did not have the police report information available. The vehicle was towed and totaled by the insurance company. The dealer was notified of the failure. The manufacturer was notified of the failure and a case was opened; however, the case was later closed. The failure mileage was approximately 85,000.
Crash:
Yes
Fire:
No
Injuries:
2
Deaths:
0
#11620312October 17, 2024
ENGINE, POWER TRAIN
Unable for many time to get recall complete old recall was told not complete and now that i have an issue they are telling me it was done trans clutch . My car has been at the dealer for three months . It is at lafontaine hyuandi dearborn mi. The part i need to fix my engine /clutch has an indefinite date when it will be available. I had this same problem when my car was less than a year old with the drive shaft. I have been in contact with corporate Hyundai and the dealer we cannot get a hold of sometimes for a whole week. These engine problems have been a huge issue with Hyundai. The engine will suddenly slow down to 20s being a hazard risk. Dealers when i have tried to get recall wont do recall they say they only have one person who can do it. I have had recalls scheduled months out and then they cancel. The problem i am having directly relates to a closed recall per multiple mechanics. The recall caused oil to leak which is what dealer said happened . Please help!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11619309October 11, 2024
POWER TRAIN
The clutch failed and the clutch and I believe the clutch actuator had to be replaced. It was not available for inspection upon request. My safety and the risk of others were compromised by the constant jerking and sputtering, of the gears that took place during vehicle operation. My acceleration was laggy and at some points nearly unresponsive. The vehicle was inspected by service technicians. A warning light saying: Warning please check Hybrid Driving System, Do not drive vehicle was illuminated. Mid to late October 2023
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11618338October 6, 2024
SERVICE BRAKES
Auto brake fault has been a constant issue with this 2021 Hyundai Ioniq Hybrid. This causes lots of system functions to stop working (adaptive crusice control, lane keeping assistant, etc.) The dealer originally replaced the wiring harness, but it came back again and again with the same issue. They finally figured out that replacing the rear calipers seemed to make it stop. They have done that twice and this past weekend the fault warning appeared again. So, for the 4th time, we will be taking the car back in so this error goes away. For additional details, I will give you the most recent time, but note that the other 3 times all happened with in the first 1-3 years of ownership.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11617668October 2, 2024
SERVICE BRAKES, ELECTRICAL SYSTEM
EPB and auto hold lights come on intermittantly/randomly.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11607989August 12, 2024
HYBRID PROPULSION SYSTEM
The contact owns a 2017 Hyundai Ioniq Hybrid. The contact stated while driving 20 MPH, the check engine warning light illuminated. The vehicle lurched forward and then stalled. The contact was able to pull over to the side of the road. The vehicle failed to restart and was towed to an independent mechanic, where it was diagnosed that the main power relay assembly had overheated, and the main power relay fuse was blown. The mechanic determined that the main power relay assembly and the fuse needed to be replaced. The mechanic determined that the failure was related to NHTSA Campaign Number: 22V459000 (Hybrid Propulsion System). The vehicle was then towed to the dealer for the recall repair; however, the dealer informed the contact that the recall repair was not necessary, and that the picture of the main power relay part would be sent to the manufacturer. The manufacturer was notified of the failure and a case was opened. The manufacturer contacted the dealer regarding the recall repair. The dealer then informed the contact that the recall repair was performed per the manufacturer's instructions. The contact was later informed by the dealer that the recall repair had not been performed and only the picture of the main power relay part had been sent to the manufacturer. The manufacturer was contacted and informed the contact that they had not received a proof of the service that the dealer had performed on the vehicle. The vehicle was towed back to the independent mechanic, where it was confirmed that the recall repair had not been performed on the vehicle. The mechanic informed the contact that the failure was related to NHTSA Campaign Number: 22V459000 (Hybrid Propulsion System). The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 140,000. Parts distribution disconnect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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