2021 HYUNDAI SONATA HYBRID

0 recalls — 68 complaints — 43 TSBs — 5/5 safety rating

No recalls found for this vehicle.

Complaint Statistics

68 total complaints 4 crashes 2 fires 2 injuries

Top Reported Components

Component	Complaints
ELECTRICAL SYSTEM	9
UNKNOWN OR OTHER	9
ENGINE	7
POWER TRAIN	6
AIR BAGS	4
FUEL/PROPULSION SYSTEM	4
STEERING	3
SERVICE BRAKES	3
ENGINE AND ENGINE COOLING	3
TIRES:SIDEWALL	3

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.

Incident date: Apr 10, 2025

Power train incident - • transmission holding gears, jerking between shifts, gear shifted into S mode on its own and stuck there, unresponsive acceleration, locked up steering/inability to turn the steering wheel and total loss of drive power. • happened while merging onto a highway in one of... Read more

Incident date: Jul 19, 2025

Catastrophic engine failure, engine died and was unable to shift into gear My 16 year old daughter was driving on a busy highway when the engine died, causing her to stop completely on a 55 MPH road. She was unable to get the car into a gear to have it pushed to the side of the road and had to sit i... Read more

Incident date: Jul 9, 2024

The contact owns a 2024 Mazda CX-50. The contact stated that there was uneven brake wear on the inner brake pad. The contact stated that the inner side of the brake pads were wearing before the outer sides. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it... Read more

Incident date: Jun 29, 2025

This is a follow-up to Complaint #11666572 regarding my 2020 Kia Telluride (VIN: [XXX] ), with urgent concerns about ongoing safety violations and abusive conduct by Greenway Kia East and Kia America. On June 26, 2025, Kia America reversed its prior refusal and agreed to reimburse Uber, rental, and ... Read more

Incident date: May 27, 2025

The contact owns a 2016 Ford Edge. The contact stated that while driving 70 MPH, the vehicle vibrated abnormally with the check engine warning light illuminated. The contact stated that on a separate occasion, while driving 50 MPH, the vehicle failed to accelerate as intended while depressing the ac... Read more

Incident date: Apr 15, 2025

The styrofoam is cracking I contacted Graco previously and they said if it’s cracked it’s no longer safe they replaced the first 2 triride car seats and they said if it happened again it would be on me to replace. I checked and they are cracking again there is no misuse they are rarely switched ... Read more

Incident date: Feb 12, 2025

The vehicle has recently started to have power steering failure, making it a hazard while driving at times.

Incident date: Jan 22, 2025

I was driving along the highway way at 60-65 mph when suddenly service traction control came on and vehicle started jerking and slowing down. As I tried to accelerate it continued to jerk and then just shut off completely. I hit the guard rail/ jersey wall on the drivers side because I had no contr... Read more

Crash

Incident date: Jan 19, 2025

I purchased this used pickup on [XXX] with 16,912 Miles. On [XXX] with 19,970 the engine expired on the pickup while I was driving on [XXX] in South Dakota. It was replaced by Northtown Automotive in Yankton, SD in early July 2024. On [XXX] the second engine expired while I was driving down [XXX]... 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 13, 2025

This is a MAJOR issue with Ford F150s. I am not sure how this was never a recall. Ford issues a TSB for this but NOTHING is the TSB fixes the issue. There is a major fault in the IWE system that causes the 4x4 to engage randomly causing the truck to have major steering issues. It causes grinding, ... Read more

Crash

Incident date: Dec 5, 2024

On walk through rear awning flew off in slight breeze, took 4 years to get repaired with covid and parts availability, could have just as easily came off on the road, had two 3/4'' screws holding it on and into skin, not frame. Upon looking at bedroom night tables gap at front cap found rub marks on... Read more

Incident date: Sep 28, 2024

The contact owns a 2023 Ford Maverick. The contact stated while driving at various speeds, the Lane Departure feature malfunctioned, causing the vehicle to erroneously steer outside the driving lane and lines. Additionally, after locking the vehicle, it was discovered that only the front driver’s ... 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

The contact owns a 2019 Ford Ecosport. The contact stated that while the daughter was driving approximately 20 mph the check engine and oil pressure warning lights had illuminated, a burning odor was present inside the vehicle and white smoke was coming from the exhaust pipes. The daughter was alert... Read more

Fire

Incident date: Sep 16, 2024

malfunctioning positive crankcase ventilation (PCV) valve: Issue: The partial-load ventilation valve in the intake line assembly does not work as intended, causing the check engine light to come on. Recommended action: the intake line assembly may need to be replaced. A malfunctioning posi... Read more

Incident date: Sep 23, 2024

On Friday, September 13, 2024, without warning, the instrument panel that shows the speed of the car (and left and right turn signals), turned off and went black (blank), while I was driving my brand new Buick, Envista. It was less than three months old at the time. The car’s mileage was at about ... Read more

Incident date: Aug 27, 2024

The contact owns a 2024 Tesla Model Y equipped with Continental Tires, Tire Line: Pro Contact, Tire Size: 255/45/R20, DOT Number: (N/A). The contact stated that several weeks after purchasing the vehicle, a neighbor informed the contact that a tire was flat. The contact attempted to pump air into th... Read more

Incident date: Aug 27, 2024

Incident date: Feb 20, 2023

I am writing to file a formal safety complaint regarding a critical malfunction that occurred with my Tesla Model 3 on [XXX], in West Palm Beach, Florida. This incident raises significant concerns about the safety and reliability of Tesla vehicles, particularly following software updates. Incident O... Read more

Incident date: Aug 12, 2024

There have been wide reports that 2020 atlas cross sports passenger airbag sensors malfunction. My vehicle has experienced this very problem. The airbag warning indicator came up on my dashboard indicating a problem. When someone sits in the passenger seat the air bag does not turn on. When I enter ... Read more

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

The vehicle, after parking, is nonresponsive to the key fob, nor will it start. This can happen at anytime and anywhere. Dealer said "It is possible the integrated 12v battery into the hybrid battery may be faulty. No codes or tests can confirm the issue. The dealer said the key fobs tested ok." My ... Read more

Incident date: Apr 4, 2024

The contact owns a 2014 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags) 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 reasonable amount of time for ... Read more

Incident date: Jun 28, 2024

I am having issues with registering car due to failed emissions for the Mass Air Flow Sensor as well as the CVT light that comes on while driving. The CVT light pops on out of no where which makes the car shake and not want to move too well. To be driving on freeway and have this happen would be ver... Read more

Incident date: Feb 20, 2024

The contact owns a 2013 Ford F-150. The contact stated while driving 50 MPH, the transmission unintendedly downshifted into first gear. The check engine warning light was illuminated. The contact pulled over, turned off, and restarted the vehicle, but the transmission failed to shift above third gea... Read more

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

Vehicle failed to move forward or reverse from a stand still. Once vehicle is shutdown and restarted, the problem does not return. When vehicle was sent to dealer it couldn't be duplicated. If this issue occurs on the open road, it could cause a collision.

Incident date: Jun 3, 2024

GM Recall N232404980: I was sent a letter in June 2023 about this recall, which stated parts were not currently available to replace the airbag. The letter states that GM will contact me when the part becomes available. On May 8, 2024 I called my local GM dealer to ask about the status of this re... Read more

Incident date: Jun 3, 2024

2016 Mazda CX-9 is leaking coolant from exhaust side of engine cylinder head. This issue has been confirmed by a Mazda dealership in North Charleston, South Carolina. The issue first appeared shortly after replacing the water pump (performed by the same dealership). The issue is known and documents... Read more

Incident date: May 21, 2024

Abs light keeps intermittent and loss of traction control! Hcu or Abs module is the problem for the intermittent cycle on the dash! Seen other people having similar problems with that particular year 2017-2018 rams 2500-3500 models.

Incident date: Mar 24, 2024

Transmission cooler is leaking, hairline crack in cooler line on external cooler on transmission we looked online and it said 2020 ford explorers 2.3 engine that was a recall but says my specific vehicle isn’t recalled but i believe it should be.

Incident date: Mar 24, 2024

The contact owns a 2019 Ford F-150. The contact stated that when the vehicle started, there was a rattling noise coming from the engine. In addition, the contact stated that the vehicle made a ticking sound while idling. The contact stated while driving at an undisclosed speed, the vehicle experienc... Read more

Incident date: Feb 1, 2023

The contact owns a 2011 Kia Optima Hybrid. The contact stated while the vehicle was parked, after starting the vehicle, the steering wheel became stiff. The “Steering Assist Fault” messages were displayed. The vehicle was taken to an independent mechanic where it was diagnosed that the steering ... Read more

Incident date: Mar 6, 2024

2012 Chevrolet Silverado 1500 pickup truck has very extensive frame damage for 115k miles which has caused it to be unsafe to drive and basically scrap. I am the 2nd owner of the truck. When I bought it at 70k miles it definitely had rust on the frame, but no major holes. It has now rusted through i... Read more

Incident date: Mar 6, 2024

Incident date: Mar 5, 2024

Radio is goin off and on

Incident date: Jan 9, 2024

A flapping sound started in the engine, then no acceleration when I used the gas pedal. Pulled to the side of the road and black smoke and sparks began coming from the engine. I exited the car and it burst into flames. The was no warning icons that appeared to alert me to any problems. Car was t... Read more

Fire

Incident date: Dec 20, 2023

Driving down the highway at a speed of 70,truck began to vibrate uncontrollably changed lanes. Continue to vibrate uncontrollably in the front of the truck. Pulled safely to side of road. Expected to see flat tires. No flat tires. Turn truck off. Turn truck back on no issues again. I believe this wa... Read more

Incident date: Dec 26, 2023

Message Displayed on 2019 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 2017 Cadillac XT-5 that I also own, the identical displayed message ca... Read more

Incident date: Dec 26, 2023

We received a recall notice in May regarding the passenger airbag and Volkswagen still does not have a solution yet.

Incident date: Sep 30, 2022

The radio will occasionally blast this really loud sound that sounds similar to a helicopter. The only way that I have found to stop it is to pull-over, turn-off the car, and wait for the radio to timeout (the radio will stay on for a period after the ignition is turned-off). From my online research... Read more

Incident date: Dec 18, 2023

Driving in moderate traffic, truck forward collision warning triggered and emergency braking engaged with no forward risk of collision. Traffic in front was accelerating, not decelerating and no risk of emergency collision existed. Incident did however nearly lead to collision from behind as brakes... Read more

Incident date: Sep 30, 2022

Common issue with this make and model and many others Check engine code P052E

Incident date: Nov 25, 2023

My moonroof exploded unexpectedly. I was traveling on a 4-lane highway, approximately 60mph. No other cars nearby, no overpasses, no pedestrians anywhere along. Suddenly, it sounded like a shotgun went off inside the vehicle. I pulled over to inspect the vehicle and discovered that the moonroof h... Read more

Incident date: Nov 25, 2023

The contact owns a 2018 Ford Fiesta. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power and the "Transmission Malfunction Service Now” message was displayed. The contact was able to pull over to the shoulder of the roadway. The contact stated... Read more

Incident date: Jun 15, 2023

For the past three months my car shuts off while driving for no reason without warning. Some times even when I am at a stop waiting for light to change while trying to accelerate to go it just shuts off and have to wait for some time to try to start it again. This problem started around May of 2023 ... Read more

Showing 50 of 68 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	$1,450

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

1,139 Total Complaints

0 Investigations

67 Reported Crashes

41 Reported Fires

0 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	13	View
2024	0	12	View
2023	0	23	View
2022	0	30	View
2021 (current)	0	68
2020	1	21	View
2019	0	5	View
2018	1	15	View
2017	3	123	View
2016	5	183	View
2015	4	83	View
2014	3	40	View
2013	4	166	View
2012	6	213	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