2021 HYUNDAI SONATA HYBRID

0 recalls, 71 complaints - 43 TSBs - 5/5 safety rating

No recalls found for this vehicle.

Complaint Statistics

71 total complaints 7 crashes 4 injuries 1 deaths

Top Reported Components

Component	Complaints
ELECTRICAL SYSTEM	12
ENGINE	12
UNKNOWN OR OTHER	6
POWER TRAIN	6
AIR BAGS	5
STEERING	5
SERVICE BRAKES, HYDRAULIC	4
SERVICE BRAKES	2
FUEL SYSTEM, GASOLINE	2
TIRES	2

Incident date: Aug 5, 2026

The vehicle experiences sudden, complete electrical power loss while driving at speed on highways and city streets or on the parking. All digital displays turn off, the engine shuts down, and power-assisted steering and braking are instantly lost without prior warning, presenting an extreme collisio... Read more

Incident date: Aug 5, 2026

Incident date: Jun 21, 2026

The contact owns a 2018 Ford Taurus. The contact received notification of NHTSA Campaign Number: 25V611000 (Structure); however, the part to do the recall repair was not yet available. The contact stated that upon further inspection, the front driver’s side B-pillar trim was loose. Several local d... Read more

Incident date: May 22, 2026

The vehicle’s 12-volt electrical system repeatedly loses power within about 1 hour of sitting. The car becomes completely unresponsive (cannot unlock or start) and requires use of the built-in 12V battery reset button to restore power. This occurs frequently and makes the vehicle unreliable and ... Read more

Incident date: Jan 26, 2026

See attached document for complaint. To Whom It May Concern: This letter is submitted as a formal pre-packet notification to the National Highway Traffic Safety Administration (NHTSA). It is not a cover letter and it is not the evidentiary submission itself. Its sole purpose is to formally notify ... Read more

Incident date: Apr 10, 2025

Cam phasers failed, car becomes inoperable. This was a known issue that was brought in under warranty and was not fixed. Car had to be brought in for major repairs because it was not addressed under warranty.

Incident date: Jul 19, 2025

The contact owns a 2013 BMW X1. The contact stated that while shifting into park(P) and turning off the vehicle, there was white smoke coming from under the hood and entering the cabin through the air vents. No warning light was illuminated. The vehicle was driven to the residence; however, the fail... Read more

Incident date: Jul 9, 2024

While driving on I-17 Southbound near mile marker 311 at approximately 75 mph, I experienced a sudden and dangerous malfunction of the Lane Keep Assist (Auto-Steer) system in a 2021 Subaru Forester. The feature was active at the time and unexpectedly veered the vehicle sharply toward the concrete wa... Read more

Crash 1 injured

Incident date: Jun 29, 2025

I had a sudden catastrophic engine failure 3/13/25. I previously filled out an NHTSA report, but I would like to add to my case. My engine was towed to the dealership and replaced. 4/25/25 the check engine light started coming on intermittently again. The service suspension notification, replace the... Read more

Incident date: May 27, 2025

The contact owns a 2023 Fisker Ocean. The contact stated while driving at an undisclosed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated the vehicle hesitated before accelerating. No warning light was illuminated. The vehicle was not di... Read more

Incident date: Apr 15, 2025

Vehicle had a DTC P0302 and a misfire at idle. Upon diagnosis cylinder #2 was found to have 80psi compression which is significantly lower than compression in all other cylinders. Cylinder head was found to be bad. This vehicle only has 61,303 miles. There are many owners complaining about the same ... Read more

Incident date: Feb 12, 2025

Sudden unexplained acceleration, Vehicle is available for inspection for limited amount of time next week vehicle will be taken by insurance company. Operator deceased as result of crash, Problem not confirmed, Barnstable, Ma police reconstruction team has hold on vehicle pending investigation, ... Read more

Crash 1 deaths

Incident date: Jan 22, 2025

[XXX] while driving down the highway the vehicle started to stall and shake significantly, while exiting the highway then and only then did a check engine light and oil pressure light. The safety of myself as well as my husband and 4 kids was put at risk b y the fact that it was during the solar ec... Read more

Incident date: Jan 19, 2025

Backup camera screen is either black or upside down. It’s been like this for awhile and can’t always see what’s behind me. Available for inspection.

Incident date: Jan 19, 2025

Unknown and my air bag light keeps coming on even though we have gotten the coolant fixed and a new/used engine put in the car, we replaced and got a new battery and new alternator in it to and the oil has gotten changed in it.

Incident date: Jan 13, 2025

Coolant leaking into the cylinders, available for inspection Engine could fail suddenly, overheat Problem confirmed by a dealer service center Known problem with the 2017 Escape and other model years No check engine light, no codes when tech checking problem, car shaking when coming to a stop light

Incident date: Dec 5, 2024

Vehicle headlights on my 2013 Acura RDX Base Model have become progressively dimmer over time to the point that the vehicle is becoming unsafe/undriveable at night and in poor weather. Contacted my local dealer. They acknowledged that this was a known issue. Said the only remedy was to replace th... Read more

Incident date: Sep 28, 2024

The contact owns a 2020 GMC Sierra 1500. The contact stated while reversing the vehicle, the rearview camera image failed to display as needed, and the radio was inoperable. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The vehicle was not repaired. The m... Read more

Incident date: Nov 5, 2024

The contact owns a 2021 RAM 1500. The contact stated while driving at an undisclosed speed, the traction contract warning light illuminated. The contact stated that the steering and the service brakes did not function as intended. The contact stated that the brake pedal was depressed, however, th... Read more

Crash

Incident date: Nov 5, 2024

Crash

Incident date: Sep 16, 2024

Rear tailgate is inoperable because of water damage. The rear driver side seatbelt is wet, the floor of the trunk is wet, the water damaged the control module for the rear tailgate, it does not open.

Incident date: Sep 23, 2024

First warning was the oil light came on and I became aware of a leak. When I took it to the mechanic the next day, he described a porous spot on the side of the cylinder head that had opened up and was rapidly losing oil when the engine was running. I understand that this is not a unique problem t... Read more

Incident date: Aug 27, 2024

Driver felt a "slipping" of gear while accelerating.The car then stalled at a stop light. Driver was able to get the car started again and drove it 1 mile up the road to Auto zone. Once the car got to Autozone and diagnostic test was ran, the car threw multiple codes for clutch system failure. The c... Read more

Incident date: Aug 27, 2024

The contact owns a 2018 Acura MDX. The contact received notifications of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling); however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonab... Read more

Incident date: Feb 20, 2023

The contact owns a 2015 BMW 335I. The contact stated while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The driver was able to pull to the shoulder of the roadway, where the vehicle was able to be jumpstarted. The battery discharge warning light was illuminated. The ... Read more

Incident date: Aug 12, 2024

I am testing a sample spoofing for internal camera and I was able to run the autopilot without any active monitoring or hands on steering wheel. I already send email to Tesla but get no response.

Incident date: Mar 15, 2024

Hit a adult male black bear broadside on a street with no lighting. The forward collision warning never engaged, seatbelt did not lock, only the knee airbag deployed, and emergency braking never engaged.

Crash

Incident date: Mar 15, 2024

Wiring inside headlamp is not up to Standards. For the cost the replace the headlight the wiring should not be falling apart causing shorts. One night I was driving and got a warning on my dash for my headlights and noticed it was a bit harder to see. Pulled over and noticed the headlight was out. W... Read more

Incident date: Mar 15, 2024

Incident date: Apr 4, 2024

Recall notice 24S24 was completed on 6/14/2024 as notified. However, due to the recall vehicle did not notify me of low battery issue. Since low battery alert was never indicated at any time, I did not have the opportunity to replace with a fresh battery (which would have been done of course) res... Read more

Incident date: Jun 28, 2024

The steering is all electric, doesn’t use power steering fluid. When I am driving, at random times, the steering wheel locks up and has almost caused me to get into two accidents. It lasts for a few seconds until I can regain control by gripping the wheel very tightly.

Incident date: Feb 20, 2024

Incident date: Jun 16, 2024

Vehicle drive system fault: This issue has happened to me 2x in my personal car and 1x in the loaner vehicle that Vinfast gave me. When this happens, the vehicle shuts off. You can’t put the car in drive or reverse. You have to leave the car, wherever it is, walk a good distance away& wait for... Read more

Incident date: Jun 11, 2024

Antilock Brake and Traction Control Warning Light comes on Intermittently while driving. Diagnostic Trouble Code C0020 - ABS Pump Motor Control: General Electrical Failure read with scan tool.

Incident date: Jun 3, 2024

On [XXX] pursuant to an appointment, I arrived at Riverside Chevrolet Buick GMC located at 100 Hwy 411 E in Rome Ga 30161 @ [XXX], to have the recalled Takata airbag replaced in our Chevrolet Silverado 1500. At that time, the Dealer failed and refused to replace the defective airbag, without giving ... Read more

Incident date: Jun 3, 2024

Reverse car went full throttle, brakes did not work, car stopped in reverse when it hit a tree. Seat belt did not tighten,

Crash 1 injured

Incident date: May 21, 2024

The contact owns a 2012 Hyundai Elantra. The contact received notification of NHTSA Campaign Number: 23V651000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonab... Read more

Incident date: Mar 24, 2024

The contact owns a 2012 BMW X6. The contact stated that while driving at 70 MPH, she heard an abnormal sound emanating from the engine compartment, after which the vehicle inadvertently lost motive power. The driver was able to pull to the shoulder of the roadway, where the vehicle failed to restart... Read more

Incident date: Mar 24, 2024

The contact owns a 2007 Nissan Titan. The contact stated that while driving at an undisclosed speed, the contact noticed a clicking sound coming from the engine compartment. In addition, the contact noticed an unusual odor coming from the exhaust. The vehicle was taken to an independent mechanic whe... Read more

Incident date: Feb 1, 2023

On three separate occasions over the past year, my car's emergency collision avoidance system was triggered, (an alarm sounded, a red symbol was on my dash, and the brakes locked), erroneously. No accident occurred, but in the second case below, it caused the car behind me to lock up their brakes ... Read more

Incident date: Mar 6, 2024

Persistent codes not considered ESP not functioning properly or appearing I display Headunit notifications not storing for vehicle trip or information Engine ticking under 2000 miles No recall work done or reported by showroom company ( failure to register in USA) Surging acceleration No stop start ... Read more

Incident date: Mar 6, 2024

Incident date: Mar 5, 2024

Drivers door won’t close the spot welds are broken on check link mounting bracket

Incident date: Jan 9, 2024

The contact owns a 2018 Jeep Wrangler. The contact received notification of NHTSA Campaign Number: 23V116000 (Power Train) however, the part to do the recall repair was not yet available. The local dealer was contacted, and it was confirmed that the part was not yet available. The contact stated tha... Read more

Incident date: Dec 20, 2023

The contact owns a 2016 Ford Escape. The contact stated while driving approximately 70 MPH, the vehicle started losing motive power. The contact depressed the accelerator pedal, but the vehicle failed to respond as designed. The contact stated no warning light was illuminated. The contact was able t... Read more

Incident date: Dec 26, 2023

feel like it downshift first really fast before going in 5 th gear. Feel like you’re going to fly out the windshield. If seatbelt wasn’t on you would get whiplash. When driving in automatic it go in limp mode. burning oil. Now

Incident date: Dec 26, 2023

Message Displayed on 2017 Cadillac XT-5 "Steering Assist is Reduced - Drive With Care". No check engine light, and no apparent loss of steering. Noted that Temperature Gauge and Air Conditioning ceased to work. Suspiciously, a 2019 Cadillac XT-5 that I also own, the identical displayed message came ... Read more

Incident date: Sep 30, 2022

The contact's daughter owns a 2022 Jeep Wrangler. The contact received notification of NHTSA Campaign Number: 23V787000 (Electrical System) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recal... Read more

Incident date: Dec 18, 2023

The contact owns a 2016 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the engine started making a ticking sound and the vehicle independently turned off. The contact stated that he was on a busy street in the middle of traffic when the failure occurred and was almos... Read more

Incident date: Sep 30, 2022

On Nov 22 2023, while driving my car the engine light came on and within 10 mins the car shut off while moving in traffic. Using the residual speed I was able to safely pull over and after multiple attempts to restart, there was smoke coming from the engine. Had the car towed and approx 3 weeks late... Read more

Showing 50 of 71 complaints.

NHTSA Safety Ratings, 2021 HYUNDAI SONATA HYBRID

2021 Hyundai Sonata Hybrid 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 HYBRID

Trim / Engine	City MPG	Highway MPG	Combined MPG	Fuel Type	Annual Fuel Cost
2.0L 4-cyl, Automatic (AM-S6) (Front-Wheel Drive)	45.0	51.0	47.0	Regular	$1,300

CO2 Emissions: 189.0 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 HYBRID

43 manufacturer communications from 28 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
100000 POWER TRAIN	10
060000 ENGINE AND ENGINE COOLING	8
110000 ELECTRICAL SYSTEM	5
010000 STEERING	4
350000 EQUIPMENT	3
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL	2
130000 VISIBILITY	2
356000 EQUIPMENT ADAPTIVE/MOBILITY	1

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

060000 ENGINE AND ENGINE COOLING

This bulletin provides the procedure to update the Hybrid Control Unit (HCU) and Dual Automatic Temperature Control (DATC) software to help improve coolant flow to the Exhaust Heat Recovery System (EHRS).

100000 POWER TRAIN

Certain 2020-2023MY Sonata Hybrid (DN8 HEV) vehicles may exhibit coolant leakage, engine overheating, and white smoke from the exhaust due to an internal leak at the Exhaust Heat Recovery System (EHRS) portion of the center muffler assembly

060000 ENGINE AND ENGINE COOLING

110000 ELECTRICAL SYSTEM

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.

100000 POWER TRAIN

This bulletin provides information related to the Engine Control Module (ECM) software update and coolant replacement for 2020-2023MY Sonata Hybrid (DN8 HEV) vehicles to improve the coolant filling mode by discharging air bubbles.

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

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

110000 ELECTRICAL SYSTEM

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

353610 EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

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

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

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 Service Procedure and replace the valve body internal harness and the input/output speed sensor.

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

060000 ENGINE AND ENGINE COOLING

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 Service Procedure and replace the related solenoid and harness.

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.

010000 STEERING

060000 ENGINE (PWS)

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 Service Procedure and replace the harness with an integrated oil temperature sensor.

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

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.

010000 STEERING

100000 POWER TRAIN

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

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

100000 POWER TRAIN

This bulletin describes the procedure to update the Shift Control Unit (SCU) for Shift-by-Wire vehicles (SBW). The update improves the display in the cluster.

350000 EQUIPMENT

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

060000 ENGINE AND ENGINE COOLING

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.

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

HYUNDAI SONATA HYBRID - All Years Overview

Complete safety history for the HYUNDAI SONATA HYBRID across all model years (2011, 2026).

34 Total Recalls

1,159 Total Complaints

0 Investigations

71 Reported Crashes

38 Reported Fires

1 Reported Deaths

HYUNDAI SONATA HYBRID - Year by Year

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

Year	Recalls	Complaints
2026	1	0	View
2025	0	15	View
2024	0	12	View
2023	0	23	View
2022	0	30	View
2021 (current)	0	71
2020	1	21	View
2019	0	8	View
2018	1	15	View
2017	3	123	View
2016	5	185	View
2015	4	84	View
2014	3	40	View
2013	4	171	View
2012	6	217	View
2011	6	144	View

Other HYUNDAI Models

Model	Recalls	Complaints
SONATA	184	21,863	View
SANTA FE	153	9,962	View
ELANTRA	133	11,853	View
PALISADE	124	2,704	View
TUCSON	95	8,074	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 HYBRID

Complaint Statistics

Top Reported Components

NHTSA Safety Ratings, 2021 HYUNDAI SONATA HYBRID

Safety Technology

EPA Fuel Economy, 2021 HYUNDAI SONATA HYBRID

Technical Service Bulletins, 2021 HYUNDAI SONATA HYBRID

Most Affected Components

HYUNDAI SONATA HYBRID - All Years Overview

HYUNDAI SONATA HYBRID - Year by Year

Other HYUNDAI Models