2021 Hyundai Sonata Transmission & Powertrain Problems
NHTSA lists 24 Transmission & Powertrain complaints for the 2021 Hyundai Sonata, 18% of its 133 total complaints, with a median failure mileage of 21,500. A related recall (22V746000) covers impaired fail-safe limited-mobility drive mode and led Hyundai to inspect/replace transmissions and update transmission control units.
- Transmission & Powertrain complaints
- 24
- 18% of 133
- Crashes reported
- 0
- Fires reported
- 0
- Injuries reported
- 0
- Median mileage
- 21,500 mi
- Related recalls
- 1
Typical transmission symptoms owners report
- Owners report the transmission going bad or needing full replacement, in some cases within months of purchase.
- Vehicles make loud or clunking sounds from the transmission when shifting out of park or between gears.
- The vehicle unexpectedly loses motive power or drops into a fail-safe/limited-mobility mode while driving at various speeds, sometimes tied to the 22V746000 recall.
- Sudden deceleration or stalling occurs with no warning lights, occasionally happening at low speeds like around a mile from home.
- Some owners had the recall repair performed but reported harsh shifting and new transmission fault codes afterward.
- RPM swings uncontrollably or the car fails to accelerate past a low speed even though RPM rises, sometimes after a cold start.
When 2021 Hyundai Sonata transmission complaints were filed
First complaint Jul 29, 2022, latest Sep 15, 2026.
Transmission & Powertrain recalls for the 2021 Hyundai Sonata
- NHTSA 22V746000Oct 6, 2022Transmission & Powertrain56,148 vehicles
Power train:automatic transmission
Hyundai Motor Company (Hyundai) is recalling certain 2021-2022 Santa Fe, Sonata, Veloster N, 2022 Santa Cruz, Elantra N, and Kona N vehicles. The vehicle's "fail-safe" limited-mobility drive mode may be impaired, when prompted by a transmission oil pump malfunction, which can result in a complete loss of drive power.
Risk: Loss of drive power increases the risk of a crash.
Remedy: Dealers will inspect and replace the transmission, as necessary. Dealers will also update the transmission control unit software. All repairs will be performed free of charge. Owner notification letters were mailed January 10, 2023. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 236.
Transmission & Powertrain complaints by Sonata model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many transmission complaints does the 2021 Hyundai Sonata have?
- NHTSA lists 24 Transmission & Powertrain complaints for the 2021 Sonata, which is 18% of the 133 total complaints filed for that model year.
- Is there a transmission recall for the 2021 Hyundai Sonata?
- Yes. Recall 22V746000, reported October 6, 2022, covers an impaired fail-safe limited-mobility drive mode; dealers inspect and replace the transmission as necessary and update the transmission control unit.
- At what mileage do 2021 Sonata transmission problems typically show up?
- NHTSA data shows a median mileage at failure of 21,500 miles for Transmission & Powertrain complaints on the 2021 Sonata.
- Did the transmission recall fix the problem for all owners?
- Not according to some complaints; a few owners reported harsh shifting and new transmission fault codes appearing after the recall repair was completed.
- Were there any crashes, fires, or injuries linked to these transmission complaints?
- NHTSA data shows 0 crashes, 0 fires, and 0 injuries among the 24 Transmission & Powertrain complaints for the 2021 Sonata.