Hyundai Ioniq 5 Complaints (2022)

402 consumer complaints on file.

#11523912May 25, 2023
EXTERIOR LIGHTING, SERVICE BRAKES
Brake lights do not illuminate in 1 pedal driving unless accelerator pedal is fully released. I often bring the car to a complete stop with the brake lights never illuminating until I'm nearly stopped, around 5 mph or less. I often see people ride up behind me quickly and have to slam on their brakes as they don't realize I'm slowing down so rapidly. This can be repeated at any time. I have not spoken to a dealer or the manufacturer about this, nor has it been inspected by any party. There are no warning lights, this seems to be normal behavior, many others have reported on this issue as well. This has been happening since I got the car.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523851May 25, 2023
SERVICE BRAKES, EXTERIOR LIGHTING
The brake lights do not come on when slowing down in i-Pedal mode unless you completely let go of the accelerator, representing a massive safety concern. The drivers behind you do not know you are slowing down even though your deceleration is quite sharp
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523849May 25, 2023
SERVICE BRAKES, POWER TRAIN
This vehicle's brake lights do not come on when using regenerative braking. The regenerative braking can bring this car to a complete stop fairly quickly and the brake lights should come on. Several near misses of people almost rear-ending me, and a few got mad enough that I feared a road rage incident. This after only owning the car for 2 weeks.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523775May 25, 2023
ELECTRICAL SYSTEM, ENGINE
Electrical system not working. The vehicle does not charge. The 12Volt battery is completely dead and vehicle does not start. Before the vehicle gone offline - it was reporting Electrical System is not charging and dead immediately. I towed the vehicle to Route 1 South, South Brunswick, NJ Hyundai Dealership on May 19th, and still in repairs. The main battery pack was showing 90% charge. The vehicle reported problem in the middle of the driving and completely slowed down to below 25Miles before and came to grinding halt. Jumpstarting the vehicle did not help.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523423May 23, 2023
FUEL/PROPULSION SYSTEM, POWER TRAIN, ELECTRICAL SYSTEM
While driving vehicle, car had sudden and rapid loss of power that resulted in significant decrease in speed. Vehicle was nearly in a rear-end Collision due to sudden drop in speed. The car is currently being inspected by the Hyundai dealership with reported failure of the ICCU.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523386May 23, 2023
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
The vehicle does not charge. After multiple attempts by the dealer to fix the issues, the vehicle is still in the shop. I am told it now charges on level 3 chargers (super chargers not available widely) only and does not charge on level 1 and 2. Various parts have been replaced but Hyundai corporate and the dealer has not been able to identify the issue or fix the problem after 45 days. I have filed a complaint with Hyundai and requested that the company buyback the vehicle. No response from Hyundai. I do not feel safe driving the vehicle. The vehicle is in repair with Lia Hyudai of Hartford, CT. Thank you, Bhavani 917-605-9772
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523131May 22, 2023
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
As I was parking my car I got a yellow warning battery light. It said to check the electrical system. When starting the car the warning light came back on and this time the car went into "turtle mode" where the car won't go over 25 miles per hour. After that the car flashed a red warning light and said to stop driving immediately. I called for a tow and the dealership diagnosed the problem as an ICCU and Fuse problem. They informed me they have ordered the part but that it make take over a month to get the part in. The car only has 11,000 miles on it and is just over 1 year old.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11523025May 20, 2023
ELECTRICAL SYSTEM
On may 12 I was driving on Lake Mead hwy when I heard a pop and lost power I pulled over and checked the car and couldn't find any visible issues I was very close to home, The car went into turtle mode and was able to make it home just before everything shut down. The Hyundai dealer said its the ICCU unit and fuse. No accident or injuries. Lucky I wasn't traveling to CA. which I often do.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11522548May 17, 2023
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM, POWER TRAIN
Likely ICCU failure incapacitated vehicle while in motion on highway. Vehicle decelerated uncontrollably and would not re-accelerate. Shortly thereafter 12v battery warning appeared and vehicle was no longer operable. Series of warning lights. “check electric vehicle system” upon car starting, “Stop vehicle and check power supply” shortly after starting drive, "12v battery very low" immediately before vehicle went completely dead.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11522378May 16, 2023
VEHICLE SPEED CONTROL, STEERING, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
While driving on highway I got below messages “Safety Functions are limited radar block warning message” Warning message went away after 15 minutes but then “Stop Vehicle Check Power Supply” warning message appeared and vehicle slowed on highway and stopped after 2 miles. Dealer replaced ICCU and Fuse that controls high voltage (charges 12v battery from main battery).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11521543May 11, 2023
ELECTRICAL SYSTEM, POWER TRAIN
While driving to work on a 55 MPH road (single lane in each direction) my car faulted with warnings for me to pull over immediately and check my batteries. At the same time, the car's speed dropped quickly to a maximum of 24 MPH, which nearly caused the cars behind me to collide. After pulling over, I was able to limp into a safe area and call a tow truck. The service shop informed me that my Integrated Charge Control Unit and fuse needed to be replaced. I am still waiting for the part to come in (estimated delivery of two months). This issue is not isolated to me; others in social media groups have experienced similar issues with their MY 2022 Ioniq 5. Hyundai is quiet on how widespread the issue is, but given that there is a safety concern when one's auto suddenly slows down while on a highway, I thought it worth reporting.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11521193May 9, 2023
EXTERIOR LIGHTING, SERVICE BRAKES
When using the car in "i-Pedal" (one-pedal driving) mode — the highest brake regen setting — the car can come to a complete stop whenever I lift my foot off the accelerator pedal, without touching the brake. While in this mode, when I fully lift my foot off the accelerator, the rear brake lights illuminate as expected, however, I often slowly reduce pressure on the accelerator pedal to come gently to a stop. I've noticed that it's possible (and often the case) that I can decelerate to a full stop without the brake lights illuminating until I fully release the brake pedal (at the very last moment before I stop). This means that I can be slowing down at a pretty significant rate without any indication to the drivers behind. Conversely, when using the automatic cruise control (that keeps the car a set distance from car ahead), the brake lights seem overly active and flash on and off quite frequently, especially when going down hills (even if there is no deceleration and the car seems to be coasting). Both of these anomalies seem to aggravate other drivers following the car for different reasons, since the vehicle's intent isn't being properly communicated. The lack of expected brake lights when decelerating gently via i-Pedal mode seems potentially dangerous. I would recommend that Hyundai tune their software so that the brake lights illuminate automatically past a set threshold of deceleration/regen braking (above what would be expected if the car were simply coasting), but not requiring the driver to fully lift off the pedal, since at that point, the rate of deceleration is already uncomfortably high for typical driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11521187May 9, 2023
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
A few minutes into my drive I heard a loud POP from under the rear seat and then an orange EV system warning message flashed on the display. The vehicle slowed down and I couldn’t maintain speed above about 25mph. Shortly after the first orange alert, the red “Stop vehicle and check power supply” message popped up on the screen along with an emergency warning sound. The vehicle was towed by Hyundai Roadside Assistance to the nearest certified dealer, which took 1 week to diagnose the car. They just confirmed it was an ICCU (Integrated Charging Control Unit) failure and would require a replacement ICCU and high voltage fuse, which are on backorder with no definitive delivery date.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11520815May 7, 2023
ELECTRICAL SYSTEM
Last night I had an update pushed to my car. I pressed ok. today while backing up i heard a slight pop. my car then said check battery . then second alert said stop vehicle and check power supply. others with this car seem to have this issue as well and is taking a long time to fix and resolve.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11520754May 6, 2023
POWER TRAIN
Started car. Heard a pop. “Check electric vehicle system” appeared on the screen. Hyundai arranged for the car to be towed to the dealer. This is likely the ICCU+Fuse failure that seems to be happening to many owners of the Ioniq 5.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11520367May 4, 2023
ELECTRICAL SYSTEM, POWER TRAIN, FUEL/PROPULSION SYSTEM
On 4/24/23, without an prior warning vehicle suddenly became undrivable. Received message: "Stop vehicle and check power supply". Car could lim along < 25mph for short distances. This condition along with indifferent Hyundai roadside assist left me stranded out of state for 5 hours before telling me to find my own way to tow the car. Car is at dealership with a diagnosed ICCU/ICCU fuse issue. To date I am being told that the parts are on back order for 2-3 weeks. Based upon online posts by others with this issue, this is not a realistic expectation. To date, Hyundai has yet to offer substitute transporation, relief from monthly paments, and reimbursement of all expenses incurred as a result of the loss of this vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11520155May 2, 2023
ELECTRICAL SYSTEM, EXTERIOR LIGHTING, STEERING
I was driving to the dealership due to an unusual message. I was on a main street less than 2 minutes from home when an alert came on the screen that said "critical 12v system" I believe. The screen went off shortly after so I was unable to fully capture it. Within 20' the car stopped itself on the road and shut off. All systems were offline with a total power loss. I could not turn my hazards on, the wheels were locked and I was unable to move the car. I had to stand outside my car to alert oncoming traffic to avoid me. Had I been on the highway when this happened I feel it could have turned deadly quickly, and would have been far worse at night It has been confirmed that the ICCU and high voltage fuse had failed. There are many other owners online speaking of the same problem. The error prior to this reported in the car was "check electric vehicle system." No extended details available, and the online app that shows car codes said "all systems normal" and still does even though the car is entirely dead.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11518392April 22, 2023
ELECTRICAL SYSTEM
12 volt battery not recharging from the main EV 77kw battery. This makes it so that car systems cannot start that started late March and went into the dealer April 14,2023, after it happened a dozen or so times.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11518368April 21, 2023
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
Suddenly whilst driving, I heard a soft "pop" and emergency alert sound and message were displayed. Car lost almost all power, but was able to move forward at 12mph to park in a safe place. Car became fully inoperable and required a flatbed tow to dealership. Was diagnosed as an ICCU problem (associated with both 12v battery failure and possible bluetooth related battery drain). Car has been in shop for 6 weeks, waiting on parts. No ETA from Hyundai. If this had occurred 3 minutes later I would have been driving at high speed on the interstate in morning commute traffic. Prior to the "pop" there was no warnings or errors or problems - car worked perfectly.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11518336April 21, 2023
ELECTRICAL SYSTEM
Driving the car on the highway, EV warning light came on dash. Car went into turtle mode for approximately 5 miles. Then the dash board changed to shut car down now. Car would not charge at home. Had to tow it to the dealership. Car has now been at the dealership waiting for parts for 5 weeks. ICCU and a fuse need to be replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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