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Vehicle speed controlPart report

2021 Hyundai Ioniq Plug-In Hybrid Vehicle speed control Problems

Complaints
1about this part
Share
20%of 5 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the vehicle speed control of the 2021 Hyundai Ioniq Plug-In Hybrid, 20% of the 5 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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 make sure it was still in D, tried to accelerate again and engine rev high without movement. Eventually car came to stop with brakes, and the car could move on electric power (in hybrid mode), pulled over and turned off the car to visually inspect. …”

NHTSA complaint #11474908, filed 2022-07

Vehicle speed control: other model years

YearComplaintsShare of year
2021120%
2019218%

Other parts of the 2021 Hyundai Ioniq Plug-In Hybrid

Brakes
2 complaints
Electrical system
2 complaints
Forward collision avoidance
2 complaints
Other or unknown
1 complaints
Seat belts
1 complaints

← All problems reported for the 2021 Hyundai Ioniq Plug-In Hybrid

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.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology