2022 Kia EV6 Problems

What owners report

Most reports from owners of this model year center on the charging system: the Integrated Charging Control Unit (ICCU) stops working, the 12-volt battery loses charge, and the car may lose power while driving or refuse to charge on home Level 1/Level 2 chargers. Many of these complaints came in after recall software had already been applied, and several owners describe a loud pop from the rear before warning messages appear. A smaller group of reports covers charging port overheating during Level 2 charging and infotainment or amplifier problems.

1. 1
   Electrical system

   ICCU failure: no home charging, 12V drain, loss of power

   • 158 complaints (57%)
   • median 23,000 mi at 2.6 yrs old (11 state mileage)
   • 1 mention a crash, fire or injury
   • filed 2023–2026

   Owners report the car suddenly refusing to charge on Level 1 or Level 2 home charging while still accepting DC fast charging, with messages such as "Check Electric Vehicle System" or "Stop Vehicle and Check Power Supply". Others describe the 12-volt battery draining so the car will not start, and some report a loud pop from the rear followed by reduced speed (often limited to about 20-25 mph) and then a complete stop. Complaints state that dealers diagnosed a failed Integrated Charging Control Unit and replaced it, sometimes after a second visit and sometimes with parts on backorder; several owners note the failure occurred even after the recall software had been installed. Reported at a wide range of mileages, from a few months of ownership to well past 80,000 miles, and often during or right after a home charging session.

   Recall 24V867000Recall 24V2000005 related service bulletins

   What to check: Ask whether the ICCU has been replaced and whether the recall software and warranty extension (WTY044) have been applied, and get any of it in writing. Before buying, try a Level 2 charge and confirm the 12-volt battery holds charge and the car starts normally after sitting.

   2 excerpts from owner complaints in NHTSA records

   “I was driving home when I heard a loud pop in the back of the car then warning symbols pop saying the there is a issue with electrical system. Then it told me to pull of the road due to low power. I've been reading around heard about the iccu not charging the 12v battery while driving and lost all function when it dies.”

   NHTSA complaint #11548148, filed 2023-10

   “I completed recall in March of 2025 for the ICCU, it failed driving down a busy road in January 2026. Kia did complete the repairs, but only warranties for 12k miles. It seems from forums I am in that this is a common problem. It also caused me to be without transportation for several weeks”

   NHTSA complaint #11717383, filed 2026-02
2. 2
   Fuel system

   Charging port overheating on Level 2, charge sessions cut

   • 80 complaints (29%)
   • median 26,000 mi at 1.9 yrs old (6 state mileage, few)
   • 2 mention a crash, fire or injury
   • filed 2022–2026

   Owners describe the charging connector or the area around the charge port becoming very hot during Level 2 charging, with the session stopping on its own or a "Charge Interrupted" message appearing. Some report that charging works only at reduced current or only on DC fast chargers. Complaints mention that dealers could not reproduce the problem because their chargers run at lower amperage, and that a software update lowers the charging rate when overheating is detected rather than addressing the port itself. Typically appears after months of trouble-free home charging, most often with higher-amperage Level 2 equipment.

   2 related service bulletins

   What to check: Charge the car on a Level 2 unit and feel the connector and port for unusual heat afterward, and ask whether any charging-rate software update or charge management campaign has been applied.

   2 excerpts from owner complaints in NHTSA records

   “To the questions listed: 1) For the last number of months the car will not fully charge when using a Level 2 charger (note: it will charge using a Level 3 charger). When charging I will get a message that Charge Interrupted . When I go out to the car the charging has in fact stopped, and the charging cable connector is very hot to the touch. 2) In addition to the inconvenience, I worry the car is a fire hazard putting my family at risk. …”

   NHTSA complaint #11535334, filed 2023-07

   “My system keep failing to charge keeps saying charging failure. Temp is 65 out side no sun and it's night time. I'm using charge point because kia said that was the best for home charging. It has become more and more each time”

   NHTSA complaint #11533538, filed 2023-07
3. 3
   Electrical system

   12-volt battery failures and dead electronics

   • 27 complaints (10%)
   • median 3,000 mi at 0.6 yrs old (3 state mileage, few)
   • 1 mention a crash, fire or injury
   • filed 2022–2026

   Complaints describe the 12-volt battery going flat, sometimes on a car less than a year old, leaving the vehicle unable to unlock, start, or hold power to the instrument cluster and other electronics. Some owners report low-voltage warnings, flashing displays, and needing a jump pack or a tow. Dealers reportedly replaced the battery or related parts, and in some cases could not identify why it kept happening. Reported from the first weeks of ownership up to about two years, at mileages from under 100 to around 72,000.

   Recall 24V200000Recall 24V867000

   What to check: Check the age and condition of the 12-volt battery, ask whether it has been replaced, and confirm the car starts and unlocks normally after being parked for a few days.

   2 excerpts from owner complaints in NHTSA records

   “Car 12v battery keep on dying after car is only one years old. Kia can not figure out why. I have to carry an emergency battery jumper with me at all times. This is an electric vehicle and when 12v battery dies. Vehicle loose all power.”

   NHTSA complaint #11546522, filed 2023-09

   “On April 13, 2024, when I started my vehicle, the instrument cluster immediately flashed the following warning msg surrounded by a flashing red circle: 12V Battery Very Low Stop Safely I turned the vehicle off, waited a few seconds and when I started it again the message did not appear. I contacted KIA USA and received a Recall Inquiry Case #. On April 18th, when I started my vehicle the same 12V Battery Very Low, Stop Safely msg displayed. It did not disappear upon restarting. …”

   NHTSA complaint #11584665, filed 2024-04
4. 4
   Brakes

   Unexpected acceleration or lurching at low speed

   • 21 complaints (8%)
   • median 3,000 mi at 1.5 yrs old (5 state mileage, few)
   • 6 mention a crash, fire or injury
   • filed 2022–2026

   A few owners describe the car surging forward or jerking when coming to a stop or while parking, in some cases with the brake pedal pressed, leading to contact with a vehicle or object ahead. Complaints note no warning lights or chimes at the time, and dealers were often unable to duplicate the behavior. Others report the car rolling when parked on an incline. Described at low mileage, generally under about 3,000 miles, during stopping and parking maneuvers.

   Recall 22V322000

   What to check: Ask whether the parking brake/shifter control software recall (22V322000) has been completed, and test low-speed stopping and parking behavior on a test drive, including on a slope.

   2 excerpts from owner complaints in NHTSA records

   “The contact owns a 2022 Kia EV6. The contact stated while stopped for a traffic signal, and with her foot on the brake pedal, the vehicle lunged forward while the traffic signal was still red. The contact stated she did not notice any warning lights or chimes. The contact stated she crashed into the rear of the vehicle in front. The contact stated that her front grill, lights, and bumper were all damaged. The contact stated that the radiator was damaged and coolant had pooled under her vehicle. …”

   NHTSA complaint #11508561, filed 2023-02, 3,000 miles

   “The contact owns a 2022 Kia EV6. The contact stated that while the vehicle was parked on a hill, it rolled and crashed into a handicapped sign. The forward collision sensor became inoperable. While at the charging station utilizing the radio, the battery and collision warning indicator lights were illuminated. The vehicle was taken to the local dealer where they were unable to identify the failure. The vehicle was not diagnosed or repaired. The manufacturer was contacted but provided no additional assistance. …”

   NHTSA complaint #11484792, filed 2022-09, 3,000 miles

Buying note. Ask for the full service history and confirm that the ICCU-related recalls and the warranty extension have been applied, since owners report charging and power-loss problems even after the software updates. A Level 2 charging test and a check of the 12-volt battery before purchase will tell you more than the paperwork alone.

Summary written with AI from a sample of 60 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.