NHTSA data · free2021 Hyundai SonataProblems: Top Complaints, Recalls & Failures (NHTSA)
Every owner complaint and safety recall the National Highway Traffic Safety Administration has on file for the 2021 Hyundai Sonata, ranked by the component that failed most.
Complaints on file
130
Recalls issued
4
Crashes reported
7
Fires reported
0
What breaks most
- Engine34 complaints · 26.2%
- Power Train23 complaints · 17.7%
- Fuel/Propulsion System20 complaints · 15.4%
- Electrical System17 complaints · 13.1%
- Fuel System12 complaints · 9.2%
Recalls on this model year
- Fuel System, Gasoline › Delivery › Hoses, Lines/Piping, And Fittings
Hyundai Motor America (Hyundai) is recalling certain 2021-2022 Santa Fe and Sonata vehicles equipped with 2.5L turbocharged engines. Fuel may leak at the pipe connection between the high-pressure fuel pump and fuel rail.
Campaign 21V524000 · reported 09/07/2021 · recall work is free at any franchised dealer
- Visibility › Windshield
Hyundai Motor America (Hyundai) is recalling certain 2020-2021 Santa Fe, 2021 Sonata, and Elantra vehicles. During manufacturing, the windshield may not have been properly bonded to the vehicle, allowing it to detach in a crash.
Campaign 21V00M000 · reported 28/12/2021 · recall work is free at any franchised dealer
- 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 l
Campaign 22V746000 · reported 06/10/2022 · recall work is free at any franchised dealer
- Fuel System, Gasoline
Hyundai Motor America (Hyundai) is recalling certain 2020-2023 Sonata vehicles. A damaged check valve can allow air to enter the fuel tank, causing it to expand and contact hot exhaust components, melting the tank.
Campaign 25V796000 · reported 18/11/2025 · recall work is free at any franchised dealer
What owners report
Engine
- Going down the road driving the car lost power and went in limp mode with no warnings on the dash at all!
- At approximately 130,000 miles, vehicle developed and internal coolant leak caused by a failed Exhaust Heat Recovery System (EHRS) in the center muffler assembly, matching TSB 23-EM-009H - a known man
- The car will idle high around 1200 rpms. The car will most of the times fix the issue when you turn the car off and back on but it will start again after driving. This is a known issue with the car. I
Power Train
- Massive loss of coolant in closed loop cooling system Heat soak. Fail safe mode
- Going down the road driving the car lost power and went in limp mode with no warnings on the dash at all!
- The vehicle has experienced repeated transmission and Electronic Oil Pump (EOP) failures resulting in loss of propulsion, loss of acceleration, and transmission-related malfunctions. The vehicle curre
Fuel/Propulsion System
- I took my vehicle in for the safety recall due to an expanding fuel tank on 08/03/2026. I received my vehicle back on 8/12/2026. Hyundai performed an improper repair on the vehicle that will not corr
- Gas tank expansion and pcv melted. Car smells like gas when I was driving earlier, and my garage was flooded with the fumes of gasoline.
- Engine revving at a complete stop. Surging engine while braking. I was forced to put into neutral when stopping. I had check engine prior that read P049D85. It went away. The Hyundai dealer said to be
Electrical System
- The Left blinker switch keeps going in and out, working about 50% of the time. Both the light and the blinker sound do not turn on. When getting it checked out at an auto repair shop, the maintenance
- The car will idle high around 1200 rpms. The car will most of the times fix the issue when you turn the car off and back on but it will start again after driving. This is a known issue with the car. I
- My 2021 Hyundai Sonata Limited Hybrid 12v battery has started to die randomly. My car is currently with the Hyundai dealer to confirm if this will be a warranty claim. Searching online, I have found o
Fuel System
- The contact owns a 2021 Hyundai Sonata. The contact received notification of NHTSA Campaign Number: 25V796000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available.
- The contact owns a 2021 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the fuel gauge indicated that the tank was half full. The contact stated that the gauge erroneous
- The contact owns a 2021 Hyundai Sonata. The contact received notification of NHTSA Campaign Number: 25V796000 (FUEL SYSTEM, GASOLINE); however, the part to do the recall repair was unavailable. The lo
Excerpts are anonymized owner complaints as filed with NHTSA, trimmed to 200 characters.
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