2022 Hyundai Ioniq 5 acceleration & cruise control problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 5, 2026WABrakesAcceleration & Cruise ControlTransmission & Drivetrain

   This report is an addendum to report 11762283 that was made yesterday. The vehicle allows driving with the rear liftgate ajar, however under some circumstances it engages the EPB when the vehicle comes to a stop while the gear state is still Drive. The gear state of the car remains in Drive when the EPB engages. This presents the driver with the choice, in the middle of the road and possibly in the middle of an intersection, of either exiting the vehicle and rearranging…

   NHTSA complaint #11762370 · source
2. Filed Sep 4, 2026WABrakesAcceleration & Cruise Control

   After coming to a stop at a stop sign, and while the gear state was in Drive, the vehicle auto-applied the electronic parking brake because the tailgate was ajar. Gear state remained in Drive. Upon accelerator input, the parking brake did not release, and the vehicle delivered propulsion torque overcoming the parking brake. As a result, the vehicle accelerated and drove several blocks with the rear brakes fully clamped, which was only effectively indicated by a smell and…

   NHTSA complaint #11762283 · source
3. Filed Jan 29, 2026COFuel, Hybrid & EV PropulsionAcceleration & Cruise ControlTransmission & Drivetrain

   The ICCU component failed. I lost propulsion while driving and almost got rear ended. The dealership service department confirmed the ICCU issue. The dealership service department has inspected the vehicle. I had a dead 12v a month prior that I had asked the service department to look at and test the ICCU. They did not test the ICCU. The car warned me 30 seconds maybe less before i lost propulsion.

   NHTSA complaint #11714329 · source
4. Filed Nov 4, 2025FLCrashTowedDriver Assistance & Safety TechElectrical SystemAcceleration & Cruise Control

   I was coasting into a library parking space with my foot off the accelerator. The car accelerated even with my foot on the brake, jumped a curb and was stopped with above ground tree roots. The dashboard should have been lighted up with collision warning indicators and the automatic braking should have engaged. It did none of that. The car was totaled. Nothing was ever checked to see if it was a mechanical error. My insurer totaled the car.

   NHTSA complaint #11697499 · source
5. Filed Apr 1, 2025TXDriver Assistance & Safety TechElectrical SystemAcceleration & Cruise Control

   Instrument panel on car will not turn on when car is started. Thus, all advanced cruise control and safety systems do not function. Car has not been to the dealership for repair yet. There were no warnings or any other indication that there was an impending problem.

   NHTSA complaint #11652002 · source
6. Filed Mar 16, 2025PADriver Assistance & Safety TechAcceleration & Cruise Control

   While driving on the highway in foggy conditions, the smart cruise control system and forward safety system suddenly shut off while I was going 70 miles an hour. This almost resulted in a car rear ending me due to the sudden deceleration. The following day, with clear weather, the same issue happened again despite nothing appearing to have caused this issue while I was driving. This is a very serious concern to suddenly stop on a highway.

   NHTSA complaint #11648554 · source
7. Filed Feb 23, 2025GAElectrical SystemAcceleration & Cruise Control

   On the morning of February 3rd, 2025, while driving, I heard a pop. A few seconds later, as I approached an intersection, a yellow warning appeared that instructed me to "Check the Electric Vehicle System". It minimized to a small caution light. I attempted to continue driving, pulling through the intersection; however, the vehicle had an abrupt loss of power; I was unable to proceed over 20-25 mph. In total no more than 2-3 mins passed from hearing the pop to loss of power.…

   NHTSA complaint #11644388 · source
8. Filed Apr 19, 2024NCAcceleration & Cruise Control

   While driving, the 'check EV system' light comes on, intermittently what will happen is that when stopped the car will put itself in park, when it is in park I can not get it out of park, thus unable to move forward, it has also happened while reversing (and not stopped). I need to cycle the car on and off a bunch of times in order for it to finally turn back on. This is very dangerous while on the road stopped in a busy intersection and has potential for a crash. I have…

   NHTSA complaint #11583980 · source
9. Filed Apr 7, 2024AZElectrical SystemFuel, Hybrid & EV PropulsionAcceleration & Cruise Control

   I was driving 75mph on the freeway and I heard a pop and then the electrical warning system on the car lit up. I lost power to the car and was only able to accelerate minimally. There was a warning of low battery and the vehicle was going to lose power. I turned on my hazard lights and was able to get to the exit and was able to exit the freeway safely. Once the vehicle lost power I was unable to open the charger door, start the vehicle, use any of the key fob functions and…

   NHTSA complaint #11581623 · source
10. Filed Mar 20, 2024VTFuel, Hybrid & EV PropulsionAcceleration & Cruise ControlSteering

    My vehicle was fully charged. About 1 mile after leaving my house, I received a warning message on my display (vehicle electrical system error or similar). Shortly after I received another message that power was reduced, then finally, "stop driving". I pulled into the nearest driveway and called roadside assistance. At that point, the vehicle was COMPLETELY dead. No lights or power whatsoever. I could not activate the car to shift into neutral. I had my vehicle towed to the…

    NHTSA complaint #11578415 · source
11. Filed Feb 29, 2024NJElectrical SystemAcceleration & Cruise Control

    I have a Hyundai Ioniq 5. I purchased it in July 2022 and have been driving it with no major issues except for a couple recall updates. On Monday, [XXX] I was driving home on the Highway when a warning light came on telling me to check EV Connection, it was an orange message. Then the light and message switched to red and displayed a battery symbol. The message said to stop vehicle and check power supply. My acceleration slowed down and I couldn't go above 25 mph despite…

    NHTSA complaint #11574690 · source
12. Filed Feb 8, 2024COElectrical SystemAcceleration & Cruise ControlTransmission & Drivetrain

    A warning popped up "Check electric vehicle system", then a few minutes later an error popup appeared "stop vehicle and check power supply" and the car would no longer go above 27 mph.

    NHTSA complaint #11570687 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology