Hyundai Ioniq 5 Complaints

1,350 consumer complaints on file.

#11531240July 10, 2023
ELECTRICAL SYSTEM
Loss of power when accelerating, Warning lights came on and off in blinking style. After losing power to zero , it would jump accelerate hard then die again.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531145July 9, 2023
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530877July 7, 2023
ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530853July 7, 2023
ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530818July 7, 2023
ELECTRICAL SYSTEM
ICCU charging system faulty. 12v battery was not charged sufficiently. Car not operational. Part on back order and can take months to repair.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530608July 6, 2023
FUEL/PROPULSION SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530534July 5, 2023
ELECTRICAL SYSTEM
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530475July 5, 2023
SERVICE BRAKES, EXTERIOR LIGHTING
When using the one pedal driving or "iPedal" mode, the brake lights do not illuminate when braking unless your foot is completely off of the accelerator pedal. This is very dangerous because the vehicle can be stopped very hard without completely removing your foot from the gas pedal. I have stopped using this mode after almost being rear-ended three times within a week due to the car behind me not realizing that I am braking. This issue is gaining media attention. After doing research online, I have learned that there are lots of other people that have noticed the same behavior and have stopped using this mode as a result.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530467July 5, 2023
ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530267July 4, 2023
ELECTRICAL SYSTEM
Vehicle fails to charge at full level 2 charging speeds. When set to 48 amps the vehicle quickly reaches a high AC inlet temperature and stops the charging. When lowered to 38 amps the vehicle charges for longer but eventually reaches the high AC inlet temperature and once again stops charging. Level 2 charging must be set to a low max of around 32 amps to successfully charge the car without it stopping the charging. Car is advertised to support 48 amps but does not work correctly. MyHyundai app constantly gives the "Electric vehicle charging alarm" message which indicates the issue occuring.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530252July 3, 2023
ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530216July 3, 2023
FUEL/PROPULSION SYSTEM, ELECTRICAL SYSTEM
When charging the car on an AC Level 2 charger, the vehicle overheats and charging fails. This is dangerous and can cause overheating/fire to electrical equipment as well as rendering the vehicle inoperable due to insufficient charge. There are no warnings ahead of time prior to failure. The problem is widespread and replicable, as evidenced by reports of forums, reddit, YouTube, and even a TSB issued by Hyundai that fails to adequately resolve the issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530128July 3, 2023
ELECTRICAL SYSTEM
The vehicle’s 12v system failed under normal use. The vehicle is unable to be started without a jumpstart. I think this is related to the issues other Ioniq 5s are seeing.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529635June 29, 2023
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529073June 27, 2023
ENGINE, ELECTRICAL SYSTEM
While driving, on a busy street in Holyoke MA, a STOP waning appeared on the drivers display indicating an electrical/power problem. I pulled over to side of road and called a tow truck. Car was taken to dealer where they ran diagnostics on the vehicle. Diagnostics showed failed ICCU and bad cell in 12v battery. Replaced ICCU and high voltage fuse.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529050June 27, 2023
ELECTRICAL SYSTEM
Charging prematurely terminates before completed. Dealer denies knowledge of this. However suggested charging at "reduced" as opposed to "maximum" level. Even charging at "reduced" setting, charging still terminates before complete.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528988June 26, 2023
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FUEL/PROPULSION SYSTEM
Cruise control became disabled and then unable to accelerate when pressing down on accelerator
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528971June 26, 2023
ELECTRICAL SYSTEM
THE car dash board flashed a message: STOP IMMEDIATELY. CHECK THE ELECTRICAL SYSTEM. I drove 1 mile home, called the dealer, was told to have the car towed to dealer. When the tow truck arrived the car battery was totally dead. The dealer said it was an ICCU problem, and that they had seen it before. Could take weeks, or months, to get a new part!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528928June 26, 2023
POWER TRAIN, ELECTRICAL SYSTEM
Occasionally, the vehicle sometimes doesn't start and allow me to engage to Drive gear from being turned off/Parked. I sometimes have to turn the car off and back on 1-2 times for the car to start like normal and allow me to select drive or reverse. Additionally, I have never been able to successfully sync my vehicle with my hyundai bluelink account despite efforts to troubleshoot with Bluelink representatives.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528838June 26, 2023
UNKNOWN OR OTHER
Sometimes, the batteries trip while charging and don’t recharge, don’t charge at the expected speeds, or only charge partially. Recently, when charging at home all night and plugged into our Level 2 charger, I find find that the car has not charged at all overnight.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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