The 2021 Hyundai Sonata has 4 NHTSA recall campaigns affecting an estimated 183,356 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 170 complaints with NHTSA, most often about the engine. Last updated July 5, 2026.
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.
Consequence
A melted fuel tank can leak, increasing the risk of a fire.
Remedy
Dealers will inspect and replace the check valve. The fuel tank assembly will be inspected for damage and replaced if necessary. Additionally, dealers will inspect and update the engine control unit software. All repairs will be performed as necessary, free of charge. Owner notification letters were mailed beginning…
POWER TRAIN22V7460002022-10-0656,148 affected
Defect
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.
Consequence
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…
VISIBILITY21V00M0002021-12-2826,413 affected
Defect
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.
Consequence
A windshield that detaches from a vehicle during a crash can increase the risk of injury.
Remedy
Dealers will remove and reinstall the front windshield panel, free of charge. Owner notification letters were mailed June 20, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 216.
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.
Consequence
A fuel leak increases the risk of a fire.
Remedy
Dealers will inspect and tighten, or replace the fuel pipe as necessary, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 207.
Complaints by component
ENGINE
33
1crashes
UNKNOWN OR OTHER
29
3crashes5injuries
POWER TRAIN
20
FUEL/PROPULSION SYSTEM
17
1crashes5injuries
ELECTRICAL SYSTEM
15
VISIBILITY/WIPER
8
FUEL SYSTEM, GASOLINE
7
AIR BAGS
4
2crashes7injuries
FORWARD COLLISION AVOIDANCE: WARNINGS
4
1crashes
STRUCTURE:BODY
4
Total complaints170
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“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 manufacturing defect documented by hyundai. Coolant has been slowly leaking internally into the…”
“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 manufacturing defect documented by hyundai. Coolant has been slowly leaking internally into the…”
“The contact owns a 2021 hyundai sonata. The contact stated while driving at an undisclosed speed, the engine shuddered and the engine stalled. In addition, the engine seized. No warning lights were illuminated. The contact stated that the vehicle was seized in the middle of the road. The contact…”
“The contact owns a 2021 hyundai sonata. The contact stated while driving at an undisclosed speed, the engine shuddered and the engine stalled. In addition, the engine seized. No warning lights were illuminated. The contact stated that the vehicle was seized in the middle of the road. The contact…”
“I took my car to dealer to repair recall. Dealer told me if it failed they would keep car and report stolen if I tried to take it. They failed it. I didn't trust them based on their report it stolen statement. I had the police get my car back. I took it to another dealer where it passed recall…”
“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 have had the egr valve replaced since it will pop up the codes p240f and p049 for egr slow…”
“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 have had the egr valve replaced since it will pop up the codes p240f and p049 for egr slow…”
“The contact owns a 2021 hyundai sonata. The contact received notification of nhtsa campaign number: 25v796000 (fuel system, gasoline); and the vehicle was taken to the dealer for the recall repair; however, the dealer informed the contact that the vehicle was unrepairable, and there was no further…”
Defect investigations
InvestigationDP22003 Opened 2022-09-12 · closed 2023-12-12
Loss of Motive Power
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles…
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2021 Hyundai Sonata as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
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