Ioniq 5 (2026)
Reliability Score
Complaints by Engine Code
Hyundai Ioniq 5 Unidentified Engine
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Complaint Breakdown
Battery & Propulsion Reliability
Battery Electric (BEV)
Battery & propulsion complaint analysis for the 2026 Hyundai Ioniq 5
Too few field reports to rate this generation against peers yet. Most recently launched models accumulate complaints over the first 2-3 years.
What kind of battery complaint?
Among the 3 battery-related complaints, here's the type mix. These percentages describe what the complaints are about — not how reliable the vehicle is overall.
Charge port, cable, mobile connector, or session failures.
Regen brake feel, one-pedal driving, B-mode complaints.
Low-voltage battery deaths, common on EVs and hybrids that use a 12V for accessories.
Battery & propulsion recalls (1)
Hyundai Motor America (Hyundai) is recalling certain 2025-2026 IONIQ 5 and 2026 IONIQ 9 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
Consequence: An electrical short in the high voltage battery system increases the risk of a fire.
Sample complaint excerpts
Charging System
- [2026] The vehicle cannot initiate a level 2 charging session due to a ground fault error. Multiple charging stations were attempted with different charging connectors and adapters. Only DC fast charging works on the vehicle now. This vehicle has been leased for less than 60 days.
- [2026] My BRAND NEW car is suffering an ICCU issue. I first noticed the screens going completely black while driving. I then noticed that I can’t charge at all on Lvl 1 and Lvl2 chargers (AC), but I went to the dealership and the helped me charge on lvl 3 DC fast charging. This is an incredibly dangerous problem, if this results in my 12V battery dying, I could be stranded while driving.
Regenerative Braking
- [2026] I am reporting a suspected safety defect involving inconsistent deceleration behavior in my 2026 Hyundai IONIQ 5. I regularly use Hyundai’s i-PEDAL one-pedal-driving mode. In this mode, releasing the accelerator produces strong regenerative deceleration and can bring the vehicle to a stop. However, the vehicle does not retain this selected driving behavior after it is turned off and restarted. It
12V Auxiliary Battery
- [2026] My BRAND NEW car is suffering an ICCU issue. I first noticed the screens going completely black while driving. I then noticed that I can’t charge at all on Lvl 1 and Lvl2 chargers (AC), but I went to the dealership and the helped me charge on lvl 3 DC fast charging. This is an incredibly dangerous problem, if this results in my 12V battery dying, I could be stranded while driving.
Source: classified from NHTSA complaint and recall data. "Battery-related" includes high-voltage propulsion battery, charging system, hybrid drivetrain, electric propulsion, regenerative braking, 12V auxiliary battery, and thermal-event complaints. Other complaints (suspension, steering, brakes, infotainment) appear in the engine and vehicle-level sections. Rates are absolute counts, not normalized per-VIN — high-volume models naturally produce more raw complaints than low-volume ones. Self-reported death and injury counts are capped per complaint to limit form abuse.
Owner Complaints by System
Complaints owners filed with NHTSA about the Hyundai Ioniq 5, counted across every engine. A complaint can name more than one system.
Recalls (2)
Hyundai Motor America (Hyundai) is recalling certain 2025-2026 IONIQ 5 and 2026 IONIQ 9 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
Hyundai Motor America (Hyundai) is recalling certain 2025-2026 Tucson Hybrid, Tucson Plug-In Hybrid Electric (PHEV), 2026 IONIQ 5, Santa Cruz, Kona, Palisade, Palisade Hybrid, Santa Fe, Santa Fe Hybrid, Sonata, Sonata Hybrid, and Tucson vehicles. Due to a software error, the instrument panel display may fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 101, "Controls and Displays."
NHTSA Safety Ratings About NHTSA ratings
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Alternatives in Compact SUV
Frequently Asked Questions
What are the most common 2026-2026 Hyundai Ioniq 5 complaints?
Owners have filed 24 complaints with NHTSA about the 2026-2026 Hyundai Ioniq 5. The systems they name most often are the electrical system, the safety systems and the brakes.
Is the 2026-2026 Hyundai Ioniq 5 a good used car?
That depends on the model year, the mileage and the maintenance history of the car in front of you. Owners have filed 24 complaints with NHTSA about the 2026-2026 Hyundai Ioniq 5. Check which systems they name most often and whether a recall is still open on that car.
How many NHTSA complaints does the 2026-2026 Hyundai Ioniq 5 have?
NHTSA has 24 owner complaints on file for the 2026-2026 Hyundai Ioniq 5 as of the latest data pull. A complaint is an owner's report, not a confirmed defect, and counts rise with sales.
What recalls affect the 2026-2026 Hyundai Ioniq 5?
NHTSA lists 2 recalls covering some 2026-2026 Hyundai Ioniq 5 vehicles. Which ones apply depends on the VIN: enter it at nhtsa.gov/recalls to see the open campaigns on a specific car.
What should I check before buying a used Hyundai Ioniq 5?
Run the VIN through NHTSA's recall lookup and confirm every open recall has been done. Look hardest at the electrical system, the safety systems and the brakes, the systems owners complain about most. Ask for maintenance records, have an independent mechanic inspect the car and run a vehicle history report for prior accidents and title issues.
What are the NHTSA crash test ratings for the Ioniq 5?
The 2026 Hyundai Ioniq 5 received an overall N/A-star safety rating from NHTSA. Frontal crash: N/A stars. Side crash: N/A stars. Rollover: 5 stars (8.3% rollover probability). Electronic Stability Control: Standard. Forward Collision Warning: No. Lane Departure Warning: No. These ratings are based on standardized crash tests conducted by the National Highway Traffic Safety Administration.
Data from NHTSA federal complaints database. 24 complaints analyzed. Data confidence: low. Last updated: 2026-10-12.