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Hyundai Ioniq 6Model year report

2023 Hyundai Ioniq 6 Problems

Complaints
56filed with NHTSA
Median mileage
13,250miles, 6 complaints with mileage
Recalls
5campaigns on record
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA crash rating
5 / 5stars overall, 2 rated versions
EPA fuel economy
121 MPGecombined, Electric AWD · 130 city / 111 hwy

Sources: NHTSA records for the 2023 Hyundai Ioniq 6 (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error

What owners report

Owners of this 2023 Hyundai Ioniq 6 most often describe the integrated charging control unit (ICCU) or its 12-volt battery failing, with warning messages and a loss of drive power or limp mode. Many also report a horn that stops working or fails in one tone, and charging that slows, overheats or stops. Mileage is listed in only a few complaints, from about 3,500 to 55,000 miles.

  1. Electrical system

    ICCU or 12-volt battery failure cuts drive power

    • 27 complaints (48%)
    • median 16,000 mi at 2.5 yrs old (4 state mileage, few)
    • filed 2024–2026

    Owners describe a warning message with a loud pop or electrical alert, followed by reduced power, turtle or limp mode at about 22 to 25 mph, or a stall on the road. Several say the dealer confirmed an ICCU fault with diagnostic code P1A9096, and some say the ICCU and 12-volt battery were replaced, then the problem returned. Several also needed a tow or a jump start to get home or to the dealer. Mileage is listed for only a few of these complaints, at about 14,000 and 55,000 miles.

    Recall 24V868000Recall 24V2040007 related service bulletins

    What to check: Ask the dealer whether the ICCU, its fuse and the 12-volt battery have been checked, and whether recalls 24V868000 or 24V204000 apply to this VIN. Bulletins list a warranty extension for the ICCU and its fuse, so ask whether that coverage applies to this vehicle.

    2 excerpts from owner complaints in NHTSA records

    “I was driving, there was a loud pop, then warnings popped up on the dash and I lost power. I was able to limp the car back to my house, because I had just left. I assume it is the ICCU. I’m reporting this because it is a known issue that Hyundai has not seemingly been able to repair. With the pedal to the floor, I got up to 25 mph. Luckily, I was near home and not on a highway.”

    NHTSA complaint #11711971, filed 2026-01

    “In November of 2025 the vehicle displayed a Check Eletrical System error message. Shortly thereafter the vehicle decelerated to under 10mph as we were turning into traffic. We were able to drive it home (less than 1mi away) and then called the Dealership. The car was then towed to the dealer (but needed a jump as the 12v battery had drained). The dealer diagnosed a failure of the ICCU and replaced it. The vehicle was in the shop for approximately 2 weeks. …”

    NHTSA complaint #11735857, filed 2026-05
  2. Electrical system

    Horn stops working or fails in one tone

    • 10 complaints (18%)
    • median 12,500 mi at 2.5 yrs old (1 states mileage, few)
    • filed 2024–2026

    Owners describe a horn that stops working or loses one tone, sometimes the low tone first, so it is hard to hear when needed. Several say they could not warn other drivers in close calls, and one says the horn stopped working with no warning light. One says the horn failed again after a repair, another says the dealer did not pre-order the part, and another describes a horn fuse that blew repeatedly. The complaint that lists mileage reports about 12,500 miles, and some describe failures within the first few thousand miles.

    4 related service bulletins

    What to check: Test both horn tones during a test drive or inspection, since complaints describe one tone failing first. A service bulletin lists an extended warranty for horn replacement on certain IONIQ 6 vehicles, so ask whether that coverage applies to this VIN.

    2 excerpts from owner complaints in NHTSA records

    “The horn stopped working. I was not able to warn other drivers they were cutting me off. The problem has been confirmed by the dealer. The high pitch horn was replaced and the low pitch horn was ordered for replacement. There were no warning lights or blown fuses.”

    NHTSA complaint #11586642, filed 2024-05

    “The car horn malfunctioned. I was not able to warn other drivers I was approaching and they were about to hit me. The component was inspected and replaced over a year ago in May 2024 under the vehicle warranty. No warning lights appeared when it happened.”

    NHTSA complaint #11685340, filed 2025-09
  3. Electrical system

    Recall repairs with missing parts or repeat failures

    • 20 complaints (36%)
    • median 14,000 mi at 3.2 yrs old (3 state mileage, few)
    • filed 2023–2026

    Owners describe recall notices for the ICCU, with the dealer unable to get the part in one case and installing a software update instead of the full replacement in another. Several say the ICCU or related electrical failure returned shortly after the recall or software update, and one says the dealer had said the problem was fixed the year before. Some say the manufacturer took longer than reasonable to complete the recall repair. Mileage is listed for only some of these complaints, at about 3,600, 14,000 and 55,000 miles.

    Recall 24V868000Recall 24V2040001 related service bulletin

    What to check: Ask the dealer for written confirmation that recalls 24V868000 and 24V204000 were completed on this VIN, and for the repair order showing whether the ICCU was replaced or only its software updated. Some complaints describe a software update given in place of the replacement the recall described, so this detail matters.

    2 excerpts from owner complaints in NHTSA records

    “I was driving and my electrical warning light came on again for the second time in a year. I was told it was the iccu last year and they said it was fixed and wouldnt have a problem again. I had to rent a car for almost two months. The same problem again with the iccu happened about a month ago and they still have my car. In a another gas rental car.”

    NHTSA complaint #11730412, filed 2026-04

    “Shortly after the ICCU recall was repaired I received numerous electrical system warnings on my Hyundai Ioniq 6 (2023, SE model). The dealership identified the problem to be the Battery Management System needed a complete replacement would you take 1-2 weeks. When you factor in three different ICCU service appointments (two SW updates and full replacement) the BMS issue was the fourth electrical / battery issue in the 16 months I've owned the vehicle. Purchased Sept 20, 2023 and have 40k miles.”

    NHTSA complaint #11641396, filed 2025-02
  4. Electrical system

    Charging slows, overheats or stops

    • 9 complaints (16%)
    • median 14,000 mi at 3.2 yrs old (3 state mileage, few)
    • filed 2023–2026

    Owners describe the charge port or onboard charger overheating, with charging that stops after about twenty minutes or drops to a lower current partway through a session. One owner describes the overheating as a fire risk and says the dealer would not confirm it, although bulletins describe lower charging speeds. Others say the car does not recognize that it is plugged in, or that the range shown after a full charge is lower than before. Mileage is listed in only one of these complaints, at about 3,600 miles.

    Recall 24V2040004 related service bulletins

    What to check: Ask the dealer to check the charge port and onboard charger for overheating, and whether charging current has been limited under a bulletin. Ask whether a charge port insulation cap bulletin has been applied, since some bulletins address charge port insulation.

    2 excerpts from owner complaints in NHTSA records

    “My 2023 Ioniq 6 is not charging as it has for 3 years. When charging to 100% my app States 347 and 382 miles. It should be 361 as stated by Hyundai. What happens if I drive under 45 mph after 5 miles the miles goes down to 303. It is not working as stated. It is not holding miles properly.”

    NHTSA complaint #11742584, filed 2026-06

    “The Ioniq 6 is supposed to be able to charge at 48 amps. I bought a new Ioniq 6 in early June 2023. June 12 I had the level 2 Juice Box 48 amp charger installed. At least twice (I think three times), it would stop charging after about twenty minutes — the charge port appears to be overheating in certain situations. Please have Hyundai either fix the port (or other hardware) and/or software. They may not advertise 48 amp charging when so many users are having overheating problems. They need to own this and be accountable. …”

    NHTSA complaint #11531078, filed 2023-07
  5. Engine

    Sudden power loss or speed limiting on the road

    • 6 complaints (11%)
    • median 18,000 mi at 1.6 yrs old (1 states mileage, few)
    • filed 2023–2026

    Owners describe losing all power and steering on the highway, with the vehicle later failing to start, and a car that would not accelerate past about 15 to 20 mph with a speed-limit message on the dashboard. Another describes an accelerator pedal that did not respond on the highway, and the car did not brake as expected. Owners say no warning lights appeared in some of these cases, and the dealer could not duplicate the failure in one. Mileage is listed in only one of these complaints, at about 18,000 miles, and the events happened while the vehicle was being driven.

    1 related service bulletin

    What to check: Ask the dealer to scan for stored codes, including any power limit or check power system message, and whether a power-down warning bulletin applies. A test drive with hard acceleration at highway speed and a restart check can show whether power limiting appears.

    2 excerpts from owner complaints in NHTSA records

    “My Ioniq6 slowed down to 20 mph for the second time tonight. No matter how hard I pressed on the accelerator the car would not speed up past 20 mph. A message on the dashboard said “Limit: 20 mph”. Eventually the car picked up speed then said “Limit: 43 mph”. (The speed limit on University Blvd at this point was 35 mph). I did not test that, as I was almost home. This happened around 7pm on Saturday, Nov 18, 2023. My wife was in the car with me and asked why I was driving so slowly. …”

    NHTSA complaint #11555846, filed 2023-11

    “While driving in the highway I took my foot off the accelerator and despite one pedal driving being on the car did not brake. I then tapped the brake. When I then pushed the accelerator to keep up with traffic, nothing happened. I checked the screen for warning lights. The car had none. The accelerator pedal was non responsive causing a huge safety issue for me and others on the road as the car was now just cruising as I was approaching a hill..I had to turn on my hazards and get over into the shoulder of the highway along the bridge at night. …”

    NHTSA complaint #11573025, filed 2024-02

Buying note. For this model year, ask for written confirmation that ICCU, 12-volt battery and horn work on the specific VIN has been completed under any recall or warranty bulletin. Because power loss and charging complaints also appear, a test drive that includes a restart and a full charge session is practical.

Summary written with AI from a sample of 50 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.

NHTSA recorded 56 consumer complaints for the 2023 Hyundai Ioniq 6. 6 of the complaints include a mileage, and 83% of those were filed for vehicles with under 50,000 miles; the median is 13,250 miles. Of all complaints, 1 an injury, according to the filers. NHTSA lists 5 recall campaigns and 37 technical service bulletins for this model year.

Not compared (fewer than 3 comparable model years). Model years 2008–2023 of the same vehicle that have at least 25 complaints are compared, and a model needs at least 3 of them.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Also reported: Seats (1), Body and structure (1).

Example complaints

Electrical system: “The dashboard error code (check vehicle power supply) also in the bluelink app the error code(DTC P1A9096). I was driving the car. It was 196 miles of range. The car suddenly went into turtle mode and then the car just died in the middle of the road. Luckily I was outside my residence. After waiting 4 hour for towing. I had it towed to the dealership.”

NHTSA complaint #11630270, filed 2024-12

Other or unknown: “The ICCU on my 2023 Hyundai Ioniq 6 failed on December 5, 2025 after 19,616 miles. Luckily, the car was parked in my driveway when this occurred. If the car was in motion when the ICCU failure occurred it would have been very dangerous. The car cannot be driven. The car's system shows Hyundai Diagnostic Trouble Code (DTC) P1A906. The problem has been confirmed by a dealer. A new ICCU has been ordered. The car is under warranty and the dealer provided a loaner car while my car is being repaired.”

NHTSA complaint #11703829, filed 2025-12

Transmission and drivetrain: “While driving on the highway, there was a complete loss of power and steering. I was able to navigate to the side of the road. The vehicle would not start on multiple occasions, and no warning lights illuminated. The vehicle was taken to the dealer, where it was stated that the issue could not be duplicated. The vehicle was not repaired. The manufacturer was not notified of the issue. The approximate failure mileage was 18,000.”

NHTSA complaint #11736266, filed 2026-05, 18,000 miles

Engine: “I was pulling into a parking spot and my vehicle suddenly lurch forward, and I had to slam on the brakes quickly, scraping the front of the curb. I checked there was no warning lights. I checked the floor mat, and this was not impeding the accelerator pedal I am certainly I did not accidentally hit the accelerator instead of the brake.”

NHTSA complaint #11732187, filed 2026-04

Mileage when problems were reported

83% of the 6 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 3,611 and 18,000 miles.

33%0–1050%10–250%25–5017%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (6 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 13,250 miles.

Complaints by year filed

This model year is less than 4 years old, so a trend is not meaningful yet.

202320242025212026
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Crash test ratings

NHTSA's 5-Star Safety Ratings for the 2023 Hyundai Ioniq 6. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.

VersionOverallFrontalSideSide poleRollover
Ioniq 6 · sedan AWD★★★★★4 / 5555 · 6.7% risk
Ioniq 6 · sedan RWD★★★★★4 / 5555 · 6.7% risk

Driver aids listed by NHTSA for the 2023 model year: forward collision warning standard on some versions, lane departure warning standard, automatic emergency braking standard on some versions.

Neighbouring years: 2024: same overall rating. A redesign between years can change both the car and the test.

Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.

Fuel economy and running cost

EPA ratings for each 2023 Hyundai Ioniq 6 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving); for electric versions it is the cost of electricity and the rating is in MPGe.

VersionEngineTransmissionCityHwyComb.Fuel / yr
Ioniq 6 Long range AWD (18 inch Wheels)Electricsingle-speed130111121 MPGe$650
Ioniq 6 Long range AWD (20 inch Wheels)Electricsingle-speed11194103 MPGe$750
Ioniq 6 Long range RWD (18 inch Wheels)Electricsingle-speed153127140 MPGe$550
Ioniq 6 Long range RWD (20 inch Wheels)Electricsingle-speed129105117 MPGe$650
Ioniq 6 Standard Range RWDElectricsingle-speed151120135 MPGe$550

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2023 Hyundai Ioniq 6 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 37 on record; the latest 10 are shown.

See all 37 bulletins →

Other model years of the Hyundai Ioniq 6

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2025373,20635121 MPGeToo new to compareToo new
20243880055121 MPGeToo new to compareToo new
20235613,25055121 MPGeNot compared (fewer than 3 comparable model years)Too new

All Hyundai Ioniq 6 model years · Best and worst years by complaints

Frequently asked questions

What are the most common problems with the 2023 Hyundai Ioniq 6?

Owners of this 2023 Hyundai Ioniq 6 most often describe the integrated charging control unit (ICCU) or its 12-volt battery failing, with warning messages and a loss of drive power or limp mode. The issues reported most often: ICCU or 12-volt battery failure cuts drive power; Horn stops working or fails in one tone; Recall repairs with missing parts or repeat failures.

How many NHTSA complaints does the 2023 Hyundai Ioniq 6 have?

NHTSA recorded 56 consumer complaints for the 2023 Hyundai Ioniq 6 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2023 Hyundai Ioniq 6 is reported most often?

Electrical system is named most often, in 33 complaints (59% of the total), followed by other or unknown with 9.

Has the 2023 Hyundai Ioniq 6 been recalled?

NHTSA lists 5 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

How did the 2023 Hyundai Ioniq 6 do in NHTSA crash tests?

NHTSA's 5-Star Safety Ratings give the 2023 Hyundai Ioniq 6 5 out of 5 stars overall, across 2 rated versions (body style and drive). Ratings from different model years are only comparable when the vehicle was not redesigned in between.

How efficient is the 2023 Hyundai Ioniq 6 according to the EPA?

The EPA rates the 2023 Hyundai Ioniq 6 (Ioniq 6 Long range AWD (18 inch Wheels), Electric) at 121 MPGe combined, 130 city and 111 highway, with an estimated annual electricity cost of $650 at 15,000 miles a year. Other battery and motor versions are rated differently.

At what mileage are problems with the 2023 Hyundai Ioniq 6 reported?

Among the 6 complaints that include a mileage, the median is 13,250 miles and the middle half falls between 3,611 and 18,000 miles; 83% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Crash ratings are from NHTSA’s New Car Assessment Program. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.