2022 HYUNDAI IONIQ 5 Complaints

Made an attempt to start the vehicle and noticed two messages on the dash as follows 1. "12V battery Voltage Battery Low" 2. "Stop Vehicle and Check Power Supply" Attempted to put the vehicle in drive. The vehicle would not engage in drive mode. Shut the vehicle off and made a second attempt to restart the vehicle. This time the vehicle did not start. Had the vehicle towed to a local Hyundai dealer. Hyundai dealer took 2 weeks to diagnose the problem. Was advised by the dealer that the ICCU module needed to be replaced along with fuses, and coolant. Also noticed vehicle having slow acceleration at times after charging. Also notice a weird noise on right rear passenger side of the vehicle sounding like fluid pumping at times. Vehicle has been at the dealer for 27 days and still not repaired

Another ICCU / fuse failure......At 17,000 miles, I heard a popping sound and the Check Electrical System" warning came up on the dash. I pulled over and checked the menus on screen but could not find any way to check my electrical system. I pulled back on the road and within a mile the dash displayed a message to "Stop Vehicle.....speed was reduced to about 20 mph and I limped a few hundred yards to my office. Called 4 dealers and each told me they were aware of the issue but already had a number of Ioniq 5's in their service lot but estimated anywhere from 4-8 weeks to "look at it". I found 1 dealer nearby willing to take the car and look at it within a week. Praying Hyundai recognizes this problem and issues a recall soon.

When charging at home on level 2 charger at 40 amps, after 20-30 minutes of charging the charge drops from 9.71kw to 5.51kW. Previously charging at 40 amps the car would just stop charging completely, but after software update the car charge drops dramatically after 20-30 minutes. Research supports similar charging issues with 40-48 amp home chargers. The charge port seems to get overheated and automatically reduces charge speed. The technical service bulletin/software update has not fixed the charging issue.

The car showed 67% battery life. But it would not charge any further. When we plugged it in, the voice would say "Charging Unsuccessful". The dash had the 'check electric vehicle' system error and when we tried to drive it, we got the red 'stop vehicle' error and alarm. We parked the car, called the dealership who made an appointment to have it diagnosed and told us not to drive it in the meantime. When it was time to take the car into the dealership, I turned it on and got 'turtle mode' and couldn't accelerate past 5mph and had trouble controlling the steering. I got about 100 ft past my driveway and the car completed powered down. It had to be towed to the dealership. When this car powers down, you can't do anything, you can't roll down the windows or unlock the doors or get the car in neutral. The tow truck driver had to use a portable battery and jumper cables just to power the car on so he could get it in neutral which releases the parking park so he could pull it on the flatbed. The dealership said our integrated charging control unit (ICCU) needs replaced; the part is on back order with no ETA. So, they have our car, and we're driving a rental and paying for gas again.

ICCU charging system faulty. 12v battery was not charged sufficiently. Car not operational. Part on back order and can take months to repair.

Level 2 charging fails on warm days if charging above 9kw. I am unable to charge my car on days above 80-90 degrees using my 9.6kw (40 amp) Level 2 charger, as the cars internal will get so hot to the point where it overheats, and force stops charging. Occasionally, I will come back to my car while charging and find it's charging at a much lower speed then it should be. Hyundai claims to have a TSB to fix this issue, but it only neuters the cars charging ability, it doesn't actually fix the ability of the car to charge at 40 or 48 amps on a warm way.

Car doesn't charge at stated capacity. Charging consistently fails after a short time adding only a few miles to range. Reduced charging rate still produces failure. Well documented problem across many owners and manufacturer fails to address this major problem with a recall

The Hyundai dealer service department has diagnosed my car as having an issue with the ICCU and 12-volt batter. It is now in the shop indefinitely as they don't know when it will be repaired. I had an electrical warning light that didn't go away when I started driving. Less than two miles from my home, the MPH dropped to 20. I managed to drive it home where it failed in my driveway. AAA tried to charge the battery/jump it, to no avail. I had them tow it to the nearest Hyundai Ioniq 5 dealer. I owned the car one year plus one day when this occurred.

Charging port overheats when charging at rated amperage on a level 2 charger, causing charging to stop repeatedly. Car does not charge consistently over 32 amps, but it’s advertised as charging at 48amps.

I turned on the car and immediately got a "check electric vehicle system" error, and then shortly after a "stop vehicle and check power supply" error. I located a nearby dealership to diagnose and repair the vehicle, and called a tow truck to take it there. My car is parked in a garage in an alley. After the tow truck arrives in the alley, I turn on the car and get the same errors, and pull into the alley. As I'm pulling into the alley, the car start behaving very eratically, not responding well to the accelerator or steering wheel, and then within a couple minutes the display goes blank, completely black, with some white glitchy pixels periodically. Thankfully, I had already put the car into neutral at this point so the car could be pulled onto the flatbed tow truck. Once the displays stopped working, the car was completely unresponsive. I was unable to lock or unlock doors by using physical buttons on doors or remote buttons on my key. The power trunk lift gate would not open. In the world of cell-phones, they would say my car was "bricked." Completely unresponsive to any input, and the display still black with occasional white glitching flashing across display. The dealership's diagnostics was that there was a malfunction in the Integrated Charging Control Unit (ICCU). They replaced the ICCU and the 12 volt battery and I received the car back from the dealership. Everything seems fully operational again.