Hyundai Ioniq Problems — All Years, Common Issues & Reliability

Electric parking break and auto hold sensor lights on dash, manual indicates malfunction. Hyundai service center has investigated and replaced the faulty sensor but issue still remains.

Auto hold at stops unexpectedly stops working with car in drive, it can suddenly roll forward Electric parking brake becomes inoperative

The Electronic Parking Brake (EPB) on my 2022 Hyundai Ioniq Hybrid has a recurring safety defect. The EPB warning light continues to come on and off intermittently even after EPB components were replaced. Diagnostic Trouble Codes C2416 and C2417 have been detected multiple times. This issue first occurred at around 10,000 miles, while the vehicle was still under factory warranty. At that time, the dealer only performed a cleaning procedure, which did not resolve the problem. Over the years, I returned to the dealer multiple times, but they refused to perform repairs unless the warning light was present during diagnosis. Frequently, the light turned off before inspection, leaving the defect unresolved. At approximately 87,000 miles, the dealer finally replaced EPB components at my expense (out-of-warranty repair). However, even after this replacement, the EPB warning light has continued to reappear, proving that the underlying safety defect was never fixed. This is a serious and ongoing safety concern. The EPB is a critical braking system component, and its failure could prevent the vehicle from safely parking or holding on a slope. Because this problem began during the warranty period, was never properly resolved, and persists even after paid repair and part replacement, I believe this represents a manufacturing defect that requires investigation and potential recall.

The contact owns a 2022 Hyundai Ioniq Hybrid. The contact stated that while operating the vehicle with the Smart Cruise Control activated, the EPB (Electronic Parking Brake) warning light activated. Additionally, while stopped, the EPB erroneously deactivated, causing the vehicle to drive forward, and the driver had to manually depress the brake pedal to stop the vehicle. The contact stated that the vehicle almost struck a pedestrian during the failure. The vehicle was taken back to the dealer who was unable to determine the cause of the failure. The contact stated that on another occasion, while driving at an undisclosed speed, the vehicle suddenly lost automotive power and was towed to the local dealer who diagnosed that the transmission was faulty and needed to be replaced. The vehicle was not yet repaired. The failure mileage was 40,000.

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.

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

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

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)

EPB and auto hold lights come on intermittantly/randomly.

The hold app doesn't work very well. Since first check up in 2022, I mentioned to garage that I have to push on button every time I need to use it as opposed to pressing on it and removing it when desired. However, not the main issue. I get in the car, Auto Hold (which usually appears when I press the button) will suddenly pop on my screen but won't work. The break won't hold, it's just there. It scares me that it has something to do with the breaks themselves in the long run. I've spoken about it twice before and the garage stated that they couldn't see it so couldn't do anything about it. The issue popped on my dashboard one day and I drove straight to the dealership. They said they had no loaner and would call me. This was more than a month ago. I'm tired of trying to get them to address the issue and hoping that I'm not the only one having it.

Forward collision warning light appears on, when there is no noticeable event immediately. "Glitch-like" flash across the dashboard appears. Vehicle continues to display wheel misalignment after two alignment procedures, values indicate possible safety concern.

The EPB light appeared on the dash panel of the car on 7/13/2023, along with the EPB light, the cruise control, the auto hold function, and the electric parking brake stopped functioning. The light will disappear on a restart and reappear after a period of time. It is indeterministic when the light will reappear on the dashboard. I have tried to contact the nearest dealer in an attempt to get the car inspected for safety reasons, however, the dealer was unavailable and Hyundai national customer service was unable to help. Hyundai's national customer service representative was also being deceptive as they transferred me to a dealer that is 425 miles away from the location I told them while giving me the impression that they were transferring me to a local dealer. The car was eventually inspected by two different Hyundai dealers. The first dealer informed me that there was a short on the wire which caused the error. However, due to the fact I was moving at the time, I could not wait for them to fix the car at that moment. They stated the vehicle was safe to drive and that I could bring the car to the new dealer once I moved to the new location. When I brought the car to the new dealer, instead of the wiring error, they stated that the radar of the car had failed. Since then, they have performed repairs on the car and the error has not yet occurred. This is a significant concern of safety due to various reasons. First, the electric parking brake is an important component of the car, as in the event of a break failure, the electric parking brake is the only backup to ensure the car can be stopped before any catastrophic event. Furthermore, according to the dealer, the actual component that has failed is the radar. However, I do not recall, at any moment, the car has warned me that the radar has failed. This could cause any reasonable person to assume the radar is functioning properly and believe that the forward collision-avoidance assist is still active with no