2021 Hyundai Ioniq Plug-IN Hybrid Problems, Complaints & Recalls

Source: NHTSA · Updated May 26, 2026 · 5 owner complaints analyzed

Compared with other Ioniq Plug-IN Hybrid years
Not enough data 3rd of 6 for complaints
Safety recalls
None on file
NHTSA crash rating
Not rated

Owners have filed 5 complaints with NHTSA about the 2021 Hyundai Ioniq Plug-IN Hybrid. That ranks 3rd out of 6 Ioniq Plug-IN Hybrid model years for complaints. The most reported problem area is electrical system (2 complaints, 40%), typically at around 3,400 miles. There are no safety recalls on file for this model year.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2021 Hyundai Ioniq Plug-IN Hybrid problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Electrical System2 · ~3,400 mi
Forward Collision Avoidance2
Service Brakes2
Seat Belts1
Unknown or Other1
Vehicle Speed Control1
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Electrical System240%3,400——
Forward Collision Avoidance240%———
Service Brakes240%———
Seat Belts120%———
Unknown or Other120%———
Vehicle Speed Control120%———

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2022, with 2 complaints
2022: 2202222025: 2202522026: 120261

n = 5 complaints · Source: NHTSA

2021 Hyundai Ioniq Plug-IN Hybrid recalls (0)

No safety recalls are on file for the 2021 Hyundai Ioniq Plug-IN Hybrid.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

Installing a car seat and the belt buckle failed. The plastic part split and no longer holds the belt together. This was under regular pressure with standard leverage that the car seat design calls for. Nothing was ever on top of the buckle and it is not damaged in any other way at all other than…

Seat Belts · received May 26, 2026 · NHTSA complaint 11740246

Auto Hold/EPB lights come one while driving. Deactivates cruise control of on. Turns off auto hold. Ongoing issue with many reports but no recall or dealership knowledge. Ongoing issue since purchase.

Electrical System · received Jul 31, 2025 · NHTSA complaint 11677617

The "Auto Hold" feature on my Hyundai Ioniq malfunctioned, displaying a dashboard warning: "AUTO HOLD conditions not met. Press brake pedal." This message randomly appears while driving or stopping, and it deactivates the Auto Hold and Electronic Parking Brake (EPB) functions. In some cases, the…

Service Brakes · received Jul 15, 2025 · NHTSA complaint 11673623

During a highway trip that was bumper to bumper traffic at approximately 15mph, the car suddenly would not accelerate while operating on gasoline (not electric). The engine revs would increase to maximum without movement from the car (as if the car was in neutral). After checking the gear lever to…

Vehicle Speed Control · received Jul 20, 2022 · NHTSA complaint 11474908

The contact leased a 2021 Hyundai Ioniq Electric The contact stated that while the vehicle was parked, he attempted to open the driver’s side door using the key fob; however, the door would not open. The contact contacted Hyundai roadside assistance who assisted him in jumpstarting and recharging…

Electrical System · received Feb 23, 2022 · NHTSA complaint 11453602

Other Hyundai Ioniq Plug-IN Hybrid years

← 2020 Ioniq Plug-IN Hybrid · 2022 Ioniq Plug-IN Hybrid →

See all Hyundai Ioniq Plug-IN Hybrid problems by year, every Hyundai model, or the Hyundai VIN decoder.

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Frequently asked questions

What are the most common problems with the 2021 Hyundai Ioniq Plug-IN Hybrid?

Owners most often report electrical system, forward collision avoidance, service brakes problems. The top one, electrical system, accounts for 2 complaints.

Was there a recall on the 2021 Hyundai Ioniq Plug-IN Hybrid?

No safety recalls are on file for this model year.

Was the 2021 Hyundai Ioniq Plug-IN Hybrid a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Ioniq Plug-IN Hybrid model years, the 2021 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.