2021 HYUNDAI SONATA

4 recalls, 179 complaints - 85 TSBs - 5/5 safety rating

FUEL SYSTEM, GASOLINE

Defect Description

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... Read more

85,043 vehicles affected

Manufacturer: Hyundai Motor America

POWER TRAIN:AUTOMATIC TRANSMISSION

Defect Description

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... Read more

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. ... Read more

56,148 vehicles affected

Manufacturer: Hyundai Motor America

VISIBILITY:WINDSHIELD

Defect Description

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.

26,413 vehicles affected

Manufacturer: Hyundai Motor America

FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

Defect Description

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.

15,752 vehicles affected

Manufacturer: Hyundai Motor America

Complaint Statistics

179 total complaints 7 crashes 2 fires 2 injuries

Top Reported Components

Component	Complaints
UNKNOWN OR OTHER	32
ENGINE	29
POWER TRAIN	21
ELECTRICAL SYSTEM	18
SERVICE BRAKES	10
FUEL/PROPULSION SYSTEM	9
FUEL SYSTEM, GASOLINE	6
STEERING	6
VISIBILITY/WIPER	5
VEHICLE SPEED CONTROL	5

Incident date: Aug 7, 2026

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.

Incident date: Aug 1, 2026

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 tech said this was more and more common for 2021 sonatas and it was not due to anything I did. It wa... Read more

Incident date: Jul 28, 2026

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 erroneously indicated that the tank was empty, and the check engine warning light was illuminated. The vehicl... Read more

Incident date: Jul 31, 2026

Going down the road driving the car lost power and went in limp mode with no warnings on the dash at all!

Incident date: Jul 31, 2026

Going down the road driving the car lost power and went in limp mode with no warnings on the dash at all!

Incident date: Jul 22, 2026

1. Component Failed: Panoramic Sunroof Glass Assembly (Structure / Visibility / Glass). Details: While traveling at highway speed on the freeway, the panoramic sunroof glass spontaneously exploded outward without warning or impact from any foreign object. Inspection: I have not had the vehicle repai... Read more

Incident date: Jul 25, 2026

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 the EGR valve. Nick Hayes at D'Arcy Hyundai and Hyundai Motor America (HMA) agreeing to a 75% goodw... Read more

Incident date: Jul 27, 2026

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 local dealer was contacted, and it was confirmed that the part was not yet available. The contact stat... Read more

Incident date: Jul 18, 2026

The panoramic sunroof spontaneously exploded while driving without any external impact

Incident date: Jan 15, 2026

The chrome trim on the parking brake switch started chipping. The sharp edge drew a drop of blood and small pieces attached to your fingers. Replaced the switch in June 2026

1 injured

Incident date: Jun 22, 2026

Upon attempting to charge the vehicle with factory supplied Level 1 charger, a dashboard message appeared stating "Service Charging System" and the vehicle would not charge. Took the vehicle to a service station and scanned the vehicle. Listed error code is p0d27-00. The code could not be cleared... Read more

Incident date: Jun 22, 2026

Engine failure. Smoke coming from tailpipe. 90,000 miles on car

Incident date: Mar 23, 2026

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 response... Read more

Incident date: Mar 23, 2026

Incident date: Sep 3, 2022

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 currently has approximately 69,000 miles. On September 3, 2022, the vehicle lost propulsion while travel... Read more

Incident date: Mar 24, 2026

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 easil... Read more

Incident date: May 18, 2026

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 sta... Read more

Incident date: May 18, 2026

Incident date: Aug 10, 2024

Faulty catalytic converters. Ford has a CSP for the 2018 Lincoln mkx 3.7L engine and only included police driven Mkx's which is totally unfair when they're well aware that Faulty/failing emissions catalytic converters were installed on all of them and they fail and produce p0430 codes regardless of ... Read more

Incident date: Jan 30, 2026

Incident date: Jan 30, 2026

The Power Electronics Control Unit (ECM), Part No. A453-900-72-11, and the DC-to-DC converter have both failed, rendering this all-electric vehicle completely inoperable. There is no backup propulsion system. The DC-to-DC converter powers safety-critical systems including lighting, turn signals, and... Read more

Incident date: Mar 13, 2026

On April 1, 2026, my 2025 Hyundai IONIQ 5 experienced a cascading electrical failure. The vehicle first displayed a warning about a problem with the on-board charger, followed shortly by an alarm and the 'Stop Vehicle and Check Power Supply' warning with a red 12V battery indicator, rendering the ve... Read more

Incident date: Mar 13, 2026

Incident date: Feb 19, 2026

Transmission won't go into reverse at times, auto shifting back to park before check engine light comes on. Vehicle initially started with hard shifts at low speeds about 25 mph. Issue progressed to the point where vehicle has to be put into reverse. Otherwise vehicle would not shift at the same poi... Read more

Incident date: Feb 19, 2026

The internal core of the Exhaust Heat Recovery System (EHRS), part of the center muffler/front pipe assembly (#28600-L5210), suffered a catastrophic failure. This allowed approximately 9 gallons of engine coolant to leak directly into the hot exhaust stream. Safety Risk: This failure creates a sever... Read more

Incident date: Feb 19, 2026

I was driving on the freewayin the night time on several occasions and the Emissions light and check engine light comes on and the car lost speed and would not accelerate. I had to put my hazards on to exit the freeway slowly to pull over turn the car off, sometimes this corrects the problems. but t... Read more

Incident date: Mar 19, 2026

The fuel tank holder is rusted out and is a known issue on this model. Land Rover used materials that are prone to severe corrosion and I feel like my fuel tank will fall off at any moment and is unsafe to drive.

Incident date: Jan 1, 2026

I purchased this vehicle on January 5, 2026, from a family-owned dealership in Broken Arrow, OK. The vehicle was purchased “as-is” with a guarantee of sale and a Carfax report. After purchasing the vehicle, I drove it home and it remained parked until January 8, 2026. On Thursday, January 8, 202... Read more

Incident date: Feb 1, 2026

Vehicle has been inspected by dealer and all I’ve gotten it’s a natural sound. Vehicle has been taken three times for same issue and nothing has been done. No accidents have occurred.

Incident date: Feb 1, 2026

We received a recall on this 2025 Toyota Sienna hybrid (NHTSA Recall No 25V-668 / Toyota Recall No 25TA12) for the seat rails that may come unwelded in a high-speed accident in December, 2025. When we asked our dealership about it they acknowledged it, but said that there was no fix. Because we regu... Read more

Incident date: Mar 1, 2026

I am experiencing gas tank swelling, and am concerned about expansion/cracks in the tank. I’ve submitted three claims after taking the motorcycle in for review. KTM has ignored my concerns, as they will not reply. No diagnostics were complete, but I personally verified proper fuel line vents were ... Read more

Incident date: Nov 17, 2025

Odometer Fraud. The contact purchased a 2017 Infinity QX80. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. The seller had an LLC. At the time of purchase, the mileage was 90,743. It was later discovered that the mileage on the Title was 175,074 on Ja... Read more

Incident date: Jan 28, 2026

My engine was replaced April 9. 2025 because of piston issues. I had taken it in a few weeks prior for terrible grinding noise, shaking, and slowing down. They didn't find anything wrong. It happened for a short time twice after and didn't take in as sporadic and would stop. Then it happened again f... Read more

Incident date: Jan 28, 2026

A hissing noise coming from inside the vehicle when braking. The dealership isolated the problem and concluded it comes from the Brake Booster. The car just came out of manufacture warranty at 39,067 miles. However, there is no check engine or dashboard light on yet.

Incident date: Feb 9, 2026

I am driving down the road and the vehicle goes into neutral and the engine turns off. I then have to stop the vehicle and restart it. When I hit the starter button. It sputters and then starts. This has been happening irregularly 1-3 times a week since it started in December of 2025.With last time... Read more

Incident date: Feb 9, 2026

The contact owns a 2020 Toyota Camry. The contact stated that bubbles or air spaces were forming on the rear windshield. The contact stated that some air bubbles the size of a dime were on the windshield. The contact stated that the bubbles were forming where the tinted portion of the windshield end... Read more

Incident date: Feb 11, 2026

I am filing a safety complaint regarding a serious transmission defect in my vehicle. The drive and reverse gears are not functioning properly. After driving for a few minutes and parking, when I attempt to reverse on an inclined surface, the vehicle unexpectedly moves forward instead of backward. ... Read more

Incident date: Feb 11, 2026

In the last 6 months I’ve had to put 3 Brake Boosters on my 2017 Chevy Malibu and it’s NOT cheap…. I don’t know what else to do.

Incident date: Aug 1, 2024

The oil cooler lines cracked due to cold weather and oil spouted out of the engine. Truck was immediately pulled over when the chime went off, however the engine still seized up and needs to be replaced. No warning lights before, just the chime at 0 oil pressure. I see that Canada and Alaska has th... Read more

Incident date: Nov 25, 2025

To Whom It May Concern, I am submitting this email in support of a formal Vehicle Safety Complaint regarding a HINO-branded electric truck with an active ABS warning fault and no authorized repair pathway. Vehicle details: VIN: [XXX] Make: HINO Year: 2020 Powertrain: Electric (SEA Electric Drive ... Read more

Incident date: Jan 31, 2026

While coming into my garage to park, it’s like the truck accelerated which caused damage to the truck and my home.

Crash

Incident date: Jan 31, 2026

While driving on the highway my vehicle will shift to neutral

Incident date: Jan 31, 2026

The car's transmission starts making noise at 81600 miles on odometer. I turned my car to Toyota certified repair shop to inspecting, Toyota technician told me that the car transmission has fail and needs to be replaced. Toyota is not responsible for replacement. It cost $14000 for the parts plus la... Read more

Incident date: Jan 7, 2026

GAS TANK SHIELD HAS ROTTED DUE TO GALVANIC CORROSION AS THE FUEL TANK SHIELD IS BOLTED ONTO AN ALUMINUM HEAT SHIELD. THE PAIRING OF THESE TWO DIFFERENT METALS HAS CAUSED THE SHIELD TO BECOME UNSTABLE AND IS PART OF HOLDING THE GAS TANK ITSELF IN PLACE. EXTREMELY UNSAFE.

Incident date: Dec 24, 2025

This recall has been going on for over three months. I have canceled vacations and other trips due to the severity of this recall. I haul a truck camper and I do disaster relief/recovery with several groups. I use my truck to get there and sleep in my camper due a lack of resources during a disas... Read more

Incident date: Dec 29, 2025

Just after merging from I-65 North to 264 East at 65 mph in Louisville KY on November 14th, the display indicated to "press start" and the engine stalled. I was only able to get the vehicle about 3 inches off of the left side of the yellow line before running out of inertia. I was stuck there for ... Read more

Incident date: Dec 29, 2025

Within 1K miles, both CV joints began to "click" when doing low speed turns -- or accelerating while turning. This is a VERY widely documented issue with the Honda Prologue. Just took the car in to my local (Honda Marin) dealership (car now has 5K miles). They verified the issue but stated Honda ... Read more

Incident date: Jan 7, 2026

I was driving on the CA 405 SB, Long Beach, at about 6 PM 9/19/25. All of a sudden this loud screeching noise started. It was so loud that I pulled off on the left shoulder instead of driving to the first exit. I assumed I was going to find something wrapped around an axle or wheel or dragging from ... Read more

Incident date: Dec 29, 2025

The contact owns a 2022 Chevrolet Silverado 1500. The contact stated that while attempting to start the vehicle, the vehicle failed to respond. The failure was intermittent but had become a recurring failure. Occasionally, while attempting to start the vehicle, the starter was making an abnormal cli... Read more

Incident date: Jan 7, 2026

I noticed the windshield washer nozzle on the passenger side isn't either working or not there. I reached out to Tesla, and also stopped by a Local Dealership and they told me that it would cost me out of pocket, since it's out of warranty. Secondly, the left side driver repeater camera has a Glar... Read more

Showing 50 of 179 complaints.

NHTSA Safety Ratings, 2021 HYUNDAI SONATA

2021 Hyundai Sonata 4 DR FWD

Category	Rating
Overall Rating	5 / 5 ★★★★★
Frontal Crash	4 / 5 ★★★★☆
Frontal Crash, Driver	4 / 5 ★★★★☆
Frontal Crash, Passenger	5 / 5 ★★★★★
Side Crash	5 / 5 ★★★★★
Side Crash, Driver	5 / 5 ★★★★★
Side Crash, Passenger	5 / 5 ★★★★★
Rollover	5 / 5 ★★★★★
Rollover Risk	9.7%

Safety Technology

Feature	Status
Electronic Stability Control	Standard
Forward Collision Warning	Standard
Lane Departure Warning	Standard

Source: NHTSA 5-Star Safety Ratings Program. Ratings are based on crash tests conducted by the National Highway Traffic Safety Administration.

EPA Fuel Economy, 2021 HYUNDAI SONATA

Trim / Engine	City MPG	Highway MPG	Combined MPG	Fuel Type	Annual Fuel Cost
1.6L 4-cyl, Automatic (S8) (Front-Wheel Drive)	27.0	37.0	30.0	Regular	$2,050
2.5L 4-cyl, Automatic (S8) (Front-Wheel Drive)	27.0	37.0	31.0	Regular	$2,000
2.5L 4-cyl, Automatic (S8) (Front-Wheel Drive)	28.0	38.0	32.0	Regular	$1,900
2.5L 4-cyl, Automatic (AM-S8) (Front-Wheel Drive)	23.0	33.0	27.0	Regular	$2,300

CO2 Emissions: 293.0 g/mile (Large Cars)

Source: U.S. Environmental Protection Agency (EPA). Actual fuel economy may vary based on driving conditions.

Technical Service Bulletins, 2021 HYUNDAI SONATA

85 manufacturer communications from 63 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
100000 POWER TRAIN	23
060000 ENGINE AND ENGINE COOLING	18
110000 ELECTRICAL SYSTEM	7
350000 EQUIPMENT	5
010000 STEERING	4
061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)	3
103000 POWER TRAIN:AUTOMATIC TRANSMISSION	3
130000 VISIBILITY	3

100000 POWER TRAIN

This TSB provides a procedure to diagnose and replace, if necessary, an automatic transmission with Incorrect Ratio DTC (transmission clutch slip in gear above limit) listed on Page 2.

061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

This bulletin provides the procedure to update the Engine Control Module (ECM) and/or the Transmission Control Module (TCM) for 2020-2023MY Sonata (DN8/DN8a) vehicles to improve operation of the Idle Stop and Go (ISG) system. Under certain

100000 POWER TRAIN

060000 ENGINE AND ENGINE COOLING

100000 POWER TRAIN

This bulletin provides the procedure for updating the automatic transmission TCU and ECU software (Santa Fe ONLY) to improve shift quality, judder with ISG enabled and hesitation when accelerating.

130000 VISIBILITY/WIPER (PWS)

This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming

130000 VISIBILITY

110000 ELECTRICAL SYSTEM

Some vehicles equipped with the AVN 5th Gen Wide system may exhibit a condition where the radio app crashes frequently when entering radio mode and/or displays a message that reads a??Uneven Road Ahead, Drive carefullya?? on the cluster alo

100000 POWER TRAIN

This TSB provides information to diagnose the push button shifter operation.

060000 ENGINE AND ENGINE COOLING

This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.

110000 ELECTRICAL SYSTEM

This bulletin is issued to provide the extended battery diagnosis procedure using GDS-M. This battery diagnosis function displays the various battery-related faults such as: a?? Internal short circuit a?? Battery deterioration a?? Malfun

060000 ENGINE AND ENGINE COOLING

100000 POWER TRAIN

If you are servicing an 8-speed front-wheel-drive vehicle equipped with automatic transaxle with one or more of the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. a?? DIAGNOSTIC TROUBLE CODES: a??

100000 POWER TRAIN

This bulletin provides information related to a Transmission Control Unit (TCU) software update for certain vehicles equipped with an 8-speed wet dual clutch transmissions (8WDCT) that improves the touch point learning variation. Certain 8W

100000 POWER TRAIN

This bulletin outlines changes to the service procedure regarding the replacement of 8-speed wet dual clutch transmissions (8WDCT) and associated transmission control unit (TCU). These changes only apply to vehicles equipped with Theta 2.5T

100000 POWER TRAIN

If you are servicing an 8-speed vehicle with a a??Check Enginea?? light on and one or more of the DTC listed, follow the service procedure and replace the related solenoid and harness.

060000 ENGINE AND ENGINE COOLING

This bulletin provides warranty procedure for EGR Valve replacement related to DTC P0401 EGR Flow Insufficient on 2020 and 2021MY Sonata (DN8a) equipped with 2.5 GDI Vehicles.

100000 POWER TRAIN

This TSB provides information to diagnose the push button shifter operation. If you are servicing a vehicle with any symptoms listed below or DTCs (listed on Page 2) , follow the Service Procedure on Page 3. SYMPTOMS: a?? a??Shifter System

103000 POWER TRAIN:AUTOMATIC TRANSMISSION

If you are servicing an 8-speed DCT front-wheel-drive vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. a?? DIAGNOSTIC TROUBLE CODES: a?? P070500 - Transmission range sensor circuit m

100000 POWER TRAIN

103300 POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)

061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

114900 ELECTRICAL SYSTEM:WIRING:POSITION/LIMIT SENSOR/SWITCH

353610 EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundaia??s Navigation Updates page. The current version of Google Maps has 10 times the data transmission compared to the previous vers

110000 ELECTRICAL SYSTEM

100000 POWER TRAIN

060000 ENGINE AND ENGINE COOLING

This bulletin provides the diagnostic procedure for the GDI injector(s) in certain 21-23MY Sonata, 21-22MY Santa Fe, certain 22MY Santa Cruz, and certain 21-23MY Tucson equipped with 2.5L GDI engines with one or more misfire DTC(s) due to i

100000 POWER TRAIN

This bulletin provides service procedures to prevent possible moisture intrusion of the HP EOP (High Flow Electric Oil Pump) connector when servicing the 8-speed wet dual clutch transmission (8WDCT). If moisture enters the HF EOP connector,

103000 POWER TRAIN:AUTOMATIC TRANSMISSION

This TSB applies only if Recall 236 or Service Campaign T8N has been performed and the 8 speed wet dual clutch transmission (8WDCT) replacement is necessary related due to high pressure electric oil pump (HP EOP) DTCa??s P1C2D03 (HP EOP Mot

100000 POWER TRAIN

162000 STRUCTURE:BODY

Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. In rare cases, the paint can becom

060000 ENGINE AND ENGINE COOLING

This bulletin provides the procedure to repair poor pin tension at joint connector JE102 in certain Sonata (1.6 T-GDI engine) with one or more DTC.

060000 ENGINE AND ENGINE COOLING

This bulletin provides the procedure to repair poor pin tension at joint connector JE202 in certain Sonata (2.5L GDI engine) with one or more DTC.

060000 ENGINE AND ENGINE COOLING

If you are servicing an 8-speed vehicle with a a??Check Enginea?? light on and one or more of the DTC listed, follow the service procedure and replace the related solenoid and harness.

060000 ENGINE AND ENGINE COOLING

This bulletin provides the diagnostic procedure for the GDI injector(s) in certain 21-23MY Sonata, 21-22MY Santa Fe, certain 22MY Santa Cruz, and certain MY21-23 Tucson equipped with 2.5L GDI engines with one or more misfire DTC(s) due to i

130000 VISIBILITY

This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside th

260000 FORWARD COLLISION AVOIDANCE

Some 2021 ~ 2022MY Sonata (DN8/DN8a) vehicles with N-Line trim may not engage Forward Collision Avoidance Assist a?? Junction Turning (FCA-JT) due to omitted logic.

100000 POWER TRAIN

This bulletin outlines changes to the service manual regarding the replacement of 8-speed dual clutch transmissions (DCT) and associated transmission control module (TCM). Additional steps, not in the service manual, are required within GDS

060000 ENGINE AND ENGINE COOLING

This bulletin provides the diagnostic procedure for the GDI injector(s) in certain 21-22MY Sonata, Santa Fe, and certain 22MY Santa Cruz, and Tucson equipped with 2.5L GDI engines with one or more misfire DTC(s) due to internally leaking GD

100000 POWER TRAIN

This bulletin provides the procedure to update the TCU software to improve drivability and shift quality.

060000 ENGINE AND ENGINE COOLING

Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement.

190000 TIRES

Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for correcting load carrying capacity information indicated on tire placards when vehicle weight has been increased before retail sale

100000 POWER TRAIN

If you are servicing an applicable vehicle with a a??Check Enginea?? light on and one or more of the DTC listed on Page 2, follow the repair procedure and perform the diagnosis. If necessary, replace the High Flow electric oil pump (HF

010000 STEERING

Certain vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft bearing.

100000 POWER TRAIN

If you are servicing an applicable vehicle with a a??Check Enginea?? light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and valve body harness.

010000 STEERING

Certain 2020-2022MY Sonata (DN8A) vehicles may develop a bearing noise within the Motor Driven Power Steering (MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to replace the worm shaft be

103200 POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT

Certain vehicles equipped with 8-speed automatic transmission may experience an automatic transmission fluid (ATF) leak at the rear cover. This type of leak is caused by a porous casting on the rear cover of the transmission.

353000 EQUIPMENT:ELECTRICAL

Certain 2020-22MY Sonata (DN8a) and 2021-22MY Santa Fe (TMa) vehicles equipped with 2.5L engine may exhibit a MIL with DTC(s): a?? P2074: Mass Airflow Sensor Plausibility a?? P2074F0: Manifold Absolute Pressure/Mass Air Flow - Throttle Po

060000 ENGINE AND ENGINE COOLING

100000 POWER TRAIN

This TSB provides a procedure to diagnose the push button shifter operation. If you are servicing a vehicle with any symptoms or DTC listed below, follow the Service Procedure, Page 2.

062300 ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

Certain vehicles listed below equipped with 2.5T turbo engines may have a misassembled check valve for the PCV (Positive Crankcase Ventilation) system, resulting in engine oil entering the intake and contaminating the air cleaner. This bull

061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

Certain 2020-22MY Sonata (DN8a), 2021-22MY Santa Fe (TMa), and 2022MY Tucson (NX4/NX4a) vehicles equipped with 2.5L engine may exhibit a MIL with DTC(s): a?? P2074: Mass Airflow Sensor Plausibility a?? P2074F0: Manifold Absolute Pressure/

060000 ENGINE AND ENGINE COOLING

Certain 2020-2021 Sonata (DN8a) vehicles with 1.6T engines may exhibit a check engine light in conjunction with a popping noise, abnormal smell from the engine compartment, rough running, or reduced power due to a misfire.

060000 ENGINE AND ENGINE COOLING

Certain Sonata N-Line vehicles may have an uneven appearance between LH and RH exhaust tips due to slightly misaligned rear mufflers. This bulletin describes the procedure to adjust and realign the rear mufflers to correct the appearance.

100000 POWER TRAIN

: Certain vehicles equipped with 8-speed automatic transmission may experience an automatic transmission fluid (ATF) leak at the rear cover. This type of leak is caused by a porous casting on the rear cover of the transmission.

010000 STEERING

060000 ENGINE AND ENGINE COOLING

100000 POWER TRAIN

This TSB provides a procedure to diagnose the push button shifter operation.

060000 ENGINE AND ENGINE COOLING

This bulletin provides information related to an Electronic Control Module (ECM) software update which revises the OBD Air Fuel Ratio Imbalance (AFRI) monitor function frequency and cylinder imbalance diagnosis logic.

100000 POWER TRAIN

If you are servicing an 8-speed front-wheel-drive vehicle with the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition. i?? DIAGNOSTIC TROUBLE CODES: i?? P070500 - Transmission range sensor circuit malfu

060000 ENGINE AND ENGINE COOLING

This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance Test inspection requirements to determine next required steps

350000 EQUIPMENT

030000 BRAKES (PWS)

This bulletin provides best practice recommendations when performing brake service procedures.

356000 EQUIPMENT ADAPTIVE/MOBILITY

This bulletin provides best practice recommendations when performing brake service procedures.

350000 EQUIPMENT

This bulletin provides best practice recommendations when performing brake service procedures.

350000 EQUIPMENT

This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.

060000 ENGINE AND ENGINE COOLING

This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This bulletin describes the procedure to update the radio software to help reduce the disconnection occurrences.

110000 ELECTRICAL SYSTEM

This bulletin describes the procedure to update the radio software to help reduce the disconnection occurrences.

010000 STEERING

The rack-mounted dual pinion Motor Driven Power Steering (MDPS) system components can be replaced separately from the complete assembly. This bulletin provides information on the separate components and the replacement procedure of these co

110000 ELECTRICAL SYSTEM

When using Wireless CarPlay, the system may intermittently auto disconnect. When Wireless CarPlay is disconnected, a pop up message a??Phone Not Responding. Please reconnect it and try againa?? will appear on the radio screen. This bulletin

110000 ELECTRICAL SYSTEM

This bulletin provides information on the Launch Quality Monitoring Process (LQMP) for the 2021MY Hyundai Sonata N Line. After a new vehicle launch, Hyundai uses the LQMP to monitor all customer and dealer activities at a minimum of 100 day

110000 ELECTRICAL SYSTEM

350000 EQUIPMENT

This bulletin describes the procedure to replace the front door module assembly if the front door window cannot close or the door regulator cables are separated from the regulator track.

162300 STRUCTURE:BODY:DOOR

This bulletin describes the procedure to replace the front door module assembly if the front door window cannot close or the door regulator cables are separated from the regulator track.

130000 VISIBILITY

This bulletin describes the procedure to replace the front door module assembly if the front door window cannot close or the door regulator cables are separated from the regulator track.

356000 EQUIPMENT ADAPTIVE/MOBILITY

This bulletin describes the procedure to identify and program certain Sonata vehicles Rear Corner Radars from the Advanced Driver Assistance Systems (ADAS) modules to enable the Safe Exit Assist (SEA) warning feature.

350000 EQUIPMENT

162000 STRUCTURE:BODY

030000 BRAKES (PWS)

This bulletin describes the procedure to inspect and identify fluid which may appear around the brake caliper area.

200000 WHEELS

This bulletin provides tire vibration service procedures, including how to optimize vehicle vibration performance. For all wheel/tire balance claims, the a??Tire Balance Data Sheeta?? must be fully completed including imbalance and Road For

190000 TIRES

100000 POWER TRAIN

This bulletin provides a procedure to transfer pressure data to the TCU using GDS Mobile. This procedure is necessary to reduce the transmission learning time and improve the shift quality.

NHTSA Safety Investigations, HYUNDAI SONATA

Investigations opened by NHTSA into potential safety defects. These are separate from recalls and may or may not result in a recall.

PE, Closed , Model Year: 2011

Air bags may be disabled during crash

The Office of Defects Investigation (ODI) opened PE18-003 on 3/16/18 to investigate incidents involving crashes, resulting in significant collision related damage, where the frontal airbags failed to deploy. ODI reviewed complaint data, available design, test, and field data on the model year (MY) 2... Read more

PE, Closed , Model Year: 2013

Front Passenger Seat Belt Anchor Failure

The Office of Defects Investigation (ODI) opened this investigation on December 27, 2016 based on two ODI consumer complaints reporting a failure of the front passenger seat belt to remain connected to the seat belt anchor and pre-tensioner during a crash.On March 8, 2017 Hyundai Motor America (Hyun... Read more

PE, Closed , Model Year: 2016

Electronic Parking Brake

The Office of Defects Investigation opened this investigation on September 3, 2016 based on four reports alleging the rear brakes locked or applied while driving without brake pedal application. One of the reports alleged a fire in the right rear wheel area.The vehicles subject to the investigation ... are equipped with an optional Electronic Parking Brake (EPB). In this system, an electric motor applies the parking brake by moving the rear brake pads (pads) against the brake rotors (rotors) when activated by the EPB control switch. The EPB is released by the control switch or by selecting a drive gear with the transmission shifter when the ignition is on.If the EPB has not been used within 1000 kilometers (621 miles) the system is designed to perform an Automatic Adjustment Function (AAF) of the pads to check for proper clearance. This function is a pad adjustment only and is preformed with the vehicle in park with the ignition off. It does not set the parking brake or turn the brake indicator light on. Hyundai has identified an error within the EPB control logic that can cause the pads to remain in contact with the rotors at various levels of force after the AAF is completed. This condition could cause the rear brakes to drag at the next drive cycle and may generate some levels of heat and smoke. The EPB control logic error affects model year 2016 vehicles produced from the start of production through March 16, 2016.Vehicles produced from March 17, 2016 incorporate an updated EPB control logic to prevent brake pad drag. On May 11, 2016 Hyundai notified its dealer network of Service Campaign TFF to update the EPB control logic in the affected vehicle population. Dealers will reflash the EPB software to prevent brake pad drag.There are no reports of accidents or injuries as a result of this issue. The incident that alleged fire could not be confirmed as there were no repairs to the vehicle other than replacement of the rear brake rotors and pads.ODI is closing this investigation based on the manufacturer's Service Campaign of the affected vehicles and in consideration that the the effect of brake drag in this instance does not appear to present an unreasonable risk to motor vehicle safety. The ODI reports cited above can be viewed at www-odi.nhtsa/complaints under the following identification (ODI)numbers: 10820359, 10854476, 10875764, 10892736, and 10928478Read more

PE, Closed , Model Year: 2006

Seat Belt Buckle Electrical Malfunction

On July 22, 2014 the Office of Defects Investigation (ODI) opened a preliminary evaluation to further analyze allegations of seat belt pretensioner malfunctions on model year (MY) 2006-2008 Hyundai Sonata vehicles.ODI received 131 unique reports alleging a failure within the seat belt pretensioner s... ystem, which was typically preceded by SRS light illumination.ODI requested more information from Hyundai in order to understand the nature of the failure and how the airbag deployment algorithm, the seat belt pretensioners, and/or the airbag function may be affected. In response to ODI?s information request (IR), Hyundai submitted 764 unique consumer and field reports and 19,847 warranty claims related to a failure in the front seat belt buckle assembly potentially causing a malfunction of the seat belt pretensioners.In it's response, Hyundai advised that if the resistance specifications for the seat belt buckle pretensioner circuit, located in the seat belt stalk, exceed the nominal range, a diagnostic trouble code will be set and the SRS warning indicator lamp will illuminate.The presence of this stored code will not affect the ability of the SRS Control Module (SRSCM) to detect a collision and command deployment of the pretensioners and airbags, if warranted.In fact, the wiring harness connector may be unplugged from the seat belt buckle pretensioner, and the signal to deploy the pretensioner will still be commanded and recorded.MY 2006-2008 Sonata?s utilize a dual pretensioner system by incorporating pretensioners into both the driver and front passenger seat belt retractor and the seat belt buckle assembly.The retractor pretensioner is located inside the B-pillar and winds (pretensions) the seat belt webbing back into the retractor housing during a collision, helping to remove seat belt slack and restrain the upper torso and hips.In contrast, the buckle pretensioner is located within the stalk of the seat belt assembly and acts to supplement lower limb protection.Both pretensioners are controlled by the SRSCM but utilize separate wiring and connectors.The seat belt retractor pretensioner circuitry and operation is independent of the seat belt buckle pretensioner connector and circuitry.Hyundai produced analysis indicating that increased resistance in the seat belt pretensioner which occurs in vehicle service does not result in a loss of buckle pretensioner.Hyundai further advised that in the unlikely event that a seat belt buckle pretensioner may not deploy due to increased resistance, the retractor pretensioner would still activate.Hyundai advised that the subject vehicles maintain their 5 STAR NHTSA safety rating using the retractor based pretensioner only.ODI notes that MY 2009-10 Sonatas reverted back to a single pretensioner system, and do not utilize seat belt buckle pretensioners. Hyundai advised its intention to initiate a warranty extension program to address concerns with the seat belt buckle prentensioner faults in MY 2006-2008 Hyundai Sonata vehicles.This action will extend the warranty coverage for this issue for 15 years or 250,000 miles, whichever occurs first.Given Hyundai's action and the minimal safety consequence this issue presents, further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor the issue and reserves the right to take further action if warranted by the circumstances. The ODI complaints cited above can be reviewed at http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, seRead more

PE, Closed , Model Year: 2011

Steering Shaft Separation

The Office of Defects Investigation (ODI) is aware of 7 complaints and field reports and 10 warranty claims on the subject vehicles that allege the intermediate steering shaft became loose or in some cases separated from the upper steering column and/or the steering gearbox, causing (or potentially ... Read more

PE, Closed , Model Year: 2002

INTERIOR DOOR HANDLE LACERATION HAZARD

THE MANUFACTURER HAS ISSUED A SAFETY RECALL NOTIFICATION AS A RESULT OF THIS INVESTIGATION.THE RECALL AFFECTS 91,202 MY 2002-2003 SUBJECT VEHICLES PRODUCED FROM JANUARY 28, 2002, THROUGH MARCH 22, 2003.THE VEHICLE RECALL POPULATION WAS DEFINED BY THE MANUFACTURER'S USE OF A NEW SUPPLIER FOR THE CHRO... Read more

PE, Closed , Model Year: 1999

FRONT SUB-FRAME CORROSION

THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED PRELIMINARY EVALUATION, PE08-029, ON APRIL 22, 2008, BASED ON 40 CONSUMER COMPLAINTS ALLEGING FRONT SUB-FRAME CORROSION IN MODEL YEAR (MY) 1999 THROUGH 2002 HYUNDAI SONATA VEHICLES.COMPLAINTS DESCRIBE SEVERE CORROSION OF THE VEHICLE SUB-FRAME IN THE A... REA WHERE THE RIGHT-FRONT LOWER CONTROL ARM IS ATTACHED.IN SOME VEHICLES, SUB-FRAME CORROSION HAS CAUSED COMPLETE OR PARTIAL DETACHMENT OF THE CONTROL ARM, RESULTING IN WHEEL COLLAPSE OR SEPARATION. IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER FOR PE08-029, HYUNDAI PROVIDED OWNER COMPLAINTS, FIELD REPORTS, AND WARRANTY CLAIM DATA FOR APPROXIMATELY 197,906 MY 1999 THROUGH 2002 SUBJECT VEHICLES SOLD OR LEASED IN THE UNITED STATES.THE BASE WARRANTY FOR THE SUBJECT VEHICLES IS 60 MONTHS OR 60,000 MILES, WHICHEVER OCCURS FIRST.ACCORDING TO HYUNDAI, PROLONGED EXPOSURE TO THE ROAD SALTS MAY RESULT IN CORROSIVE DAMAGE TO THE SUBFRAME.HYUNDAI REDESIGNED THE SUB-FRAME EARLY IN THE MY 2004 PRODUCTION (NOVEMBER 2003) TO ADDRESS PROBLEMS WITH PREMATURE CORROSION OF THE CROSSMEMBER NEAR THE RIGHT-FRONT SUSPENSION ATTACHMENT. ODI'S ANALYSIS OF BOTH COMPLAINT AND WARRANTY DATA FOR THE MY 1999 THROUGH 2002 SONATA VEHICLES SHOWS THAT THE FAILURE RATES ARE SIGNIFICANTLY HIGHER IN SALT BELT STATES, WHICH ACCOUNT FOR APPROXIMATELY 50 PERCENT OF VEHICLE SALES AND OVER 90 PERCENT OFCOMPLAINTS AND WARRANTY CLAIMS RELATED TO THE ALLEGED DEFECT (NOTE:FOR PURPOSES OF THIS INVESTIGATION THE SALT BELT INCLUDES CONNECTICUT, DELAWARE, THE DISTRICT OF COLUMBIA, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW HAMPSHIRE, NEW JERSEY, NEW YORK, OHIO, PENNSYLVANIA, RHODE ISLAND, VERMONT, WEST VIRGINIA AND WISCONSIN).ACCORDING TO HYUNDAI, THE ALLEGED DEFECT RESULTS IN A PROGRESSIVE LOSS OF STRUCTURAL INTEGRITY OF THE SUBFRAME AND THERE IS AMPLE OPPORTUNITY FOR THE PROBLEM TO BE DETECTED (BY INSPECTION, STEERING FEEL OR TIRE WEAR ANOMALIES) AND REPAIRED BEFORE IT REACHES A STATE WHERE A SAFETY RELATED INCIDENT MAY OCCUR.HYUNDAI IDENTIFIED 4 ALLEGATIONS OF VEHICLE DISABLEMENT AND 1 ALLEGATION OF A CRASH; WHERE THE LOWER CONTROL ARM BROKE FROM THE VEHICLE WHILE DRIVING AT 55 MPH AND THE DRIVER LOST CONTROL AND DROVE INTO A YARD.THERE WERE NO REPORTED INJURIES.ODI RECEIVED A SEPARATE ALLEGATION OF A CRASH, WHERE THE COMPLAINANT ALLEGED THAT WHILE DRIVING AROUND A SLIGHT CURVE AT 65 MPH ON A FREEWAY, THE VEHICLE SUB-FRAME FRACTURED AND THE DRIVER LOST CONTROL OF THE VEHICLE AND WENT OFF THE ROAD.AGAIN, NO INJURIES WERE REPORTED.APPROXIMATELY ONE-THIRD OF THE COMPLAINTS TO ODI ALLEGE THAT THE SUB-FRAME CORROSION RESULTED IN A LOSS OF CONTROL AND/OR A VEHICLE DISABLEMENT DUE TO WHEEL COLLAPSE OR SEPARATION.THIS INVESTIGATION HAS BEEN UPGRADED TO AN ENGINEERING ANALYSIS (EA08-016) COVERING MY 1999 THROUGH EARLY-2004 HYUNDAI SONATA VEHICLES IN SALT-BELT STATES AND EQUIPPED WITH THE SUBJECT SUB-FRAME DESIGN TO FURTHER ASSESS THE FREQUENCY AND SAFETY CONSEQUENCES OF THE ALLEGED DEFECT.Read more

PE, Closed , Model Year: 2002

TIRE VALVE STEM FAILURES

THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE), PE05-059, BASED ON NINE CONSUMER COMPLAINTS OF TIRE VALVE STEM FAILURES.THE ALLEGED VALVE STEM FAILURES OCCURRED ONLY AFTER TIRE REPLACEMENT FROM THE ORIGINAL EQUIPMENT (OE) TIRE (MICHELIN 205/65R15 ENERGY MXV4 PLUS) TO ... Read more

DP, Closed , Model Year: 1999

IMPROPER FRONTAL AIR BAG PERFORMANCE

HYUNDAI HAS RECEIVED 49 REPORTS FROM CUSTOMERS STATING THE FRONTAL AIR BAGS DID NOT DEPLOY IN A CRASH FOR THE SUBJECT VEHICLES.EXAMINATION OF SUPLIMENTAL INFORMATION PROVIDED TO ODI BY THE MANUFACTURER FOR THE REPORTED CASES IT APPEARED THAT THE NECESSARY AIR BAG DEPLOYMENT THRESHOLD WAS NOT MET.THE... Read more

PE, Closed , Model Year: 1989

PASS.RESTRAINT SYSTEM FAIL

There is no summary currently available

HYUNDAI SONATA - All Years Overview

Complete safety history for the HYUNDAI SONATA across all model years (1989, 2026).

141 Total Recalls

22,246 Total Complaints

10 Investigations

1,204 Reported Crashes

689 Reported Fires

27 Reported Deaths

HYUNDAI SONATA - Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year	Recalls	Complaints
2026	1	2	View
2025	0	20	View
2024	1	72	View
2023	2	140	View
2022	3	142	View
2021 (current)	4	179
2020	4	262	View
2019	0	209	View
2018	1	546	View
2017	3	1,002	View
2016	6	996	View
2015	9	1,658	View
2014	7	1,079	View
2013	9	2,650	View
2012	8	2,280	View
2011	14	4,618	View
2010	2	415	View
2009	2	612	View
2008	5	554	View
2007	7	906	View
2006	11	1,422	View
2005	1	217	View
2004	1	288	View
2003	6	249	View
2002	7	407	View
2001	3	293	View
2000	4	378	View
1999	4	187	View
1998	1	68	View
1997	2	74	View
1996	1	37	View
1995	2	93	View
1994	1	7	View
1993	1	46	View
1992	1	43	View
1991	1	41	View
1990	3	25	View
1989	3	18	View
1987	0	4	View

Other HYUNDAI Models

Model	Recalls	Complaints
SANTA FE	153	9,962	View
ELANTRA	133	11,853	View
PALISADE	124	2,704	View
TUCSON	95	8,074	View
SONATA HYBRID	67	1,129	View
IONIQ 5	66	1,865	View
ACCENT	64	2,745	View
SANTA FE HYBRID	57	347	View

Vehicle Safety

Consumer Safety

Infrastructure

Public Health

2021 HYUNDAI SONATA

Complaint Statistics

Top Reported Components

NHTSA Safety Ratings, 2021 HYUNDAI SONATA

Safety Technology

EPA Fuel Economy, 2021 HYUNDAI SONATA

Technical Service Bulletins, 2021 HYUNDAI SONATA

Most Affected Components

NHTSA Safety Investigations, HYUNDAI SONATA

HYUNDAI SONATA - All Years Overview

HYUNDAI SONATA - Year by Year

Other HYUNDAI Models