2021 Hyundai Sonata Vehicle speed control Problems
- Complaints
- 2about this part
- Share
- 1%of 135 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the vehicle speed control of the 2021 Hyundai Sonata, 1% of the 135 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.
“Since we purchased this brand new vehicle, we have had in the dealership service department at a minimum of 5 times for same issue. The vehicle accelerates while stopped at a light so we have to put it in neutral to keep it from accelerating. Once we take out of Neutral and release the break, the vehicle accelerates rapidly without stepping on the gas pedal. The computer system always comes on warning that we need to take to dealership because there are engine problems. Then it goes off and comes on again. We have contacted Hyundai to file a complaint and it has gone no where. …”
NHTSA complaint #11485887, filed 2022-09“Vehicle began to lose power while on highway. The loss of power occurred for a few seconds, then came back. Shortly after, the RPM began changing uncontrollably. Tried shifting to manual control using paddle shifters and was able to maintain steady RPM until vehicle software switched back to automatic and RPM swung crazy again. Endangered other vehicles on road due to loss of power and fluctuations of transmission. Once parked, vehicle did not change to neutral, drive, reverse. Both manufacturer and insurance are/have reviewed vehicle and are working on a fix. No warning lights. …”
NHTSA complaint #11585188, filed 2024-04Vehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 4 | 24% |
| 2024 | 6 | 13% |
| 2023 | 4 | 5% |
| 2022 | 9 | 9% |
| 2021 | 2 | 1% |
| 2020 | 7 | 4% |
| 2019 | 3 | 2% |
| 2018 | 19 | 5% |
| 2017 | 20 | 3% |
| 2016 | 30 | 4% |
| 2015 | 61 | 5% |
| 2014 | 22 | 3% |
| 2013 | 86 | 4% |
| 2012 | 84 | 5% |
| 2011 | 95 | 3% |
| 2010 | 11 | 3% |
| 2009 | 31 | 7% |
| 2008 | 14 | 3% |
| 2007 | 20 | 3% |
| 2006 | 39 | 4% |
| 2005 | 6 | 4% |
| 2004 | 5 | 2% |
| 2003 | 3 | 2% |
| 2002 | 8 | 3% |
| 2001 | 13 | 6% |
| 2000 | 7 | 3% |
| 1999 | 4 | 3% |
| 1997 | 3 | 6% |
| 1996 | 1 | 4% |
| 1995 | 6 | 9% |
| 1992 | 1 | 5% |
| 1991 | 1 | 3% |
| 1990 | 1 | 6% |
Other parts of the 2021 Hyundai Sonata
34 complaintsFuel system
34 complaintsOther or unknown
32 complaintsTransmission and drivetrain
25 complaintsElectrical system
18 complaintsVisibility (wipers, defrost, mirrors)
12 complaintsForward collision avoidance
9 complaintsAir bags
4 complaintsBrakes
4 complaintsBody and structure
4 complaintsLane departure
3 complaintsSeat belts
2 complaints
← All problems reported for the 2021 Hyundai Sonata
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