Hyundai Sonata Complaints

369 consumer complaints on file.

#11538846August 16, 2023
POWER TRAIN
The contact owns a 2021 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the vehicle lost motive power with the oil warning light illuminated. The contact was able to restart the vehicle; however, the failure recurred. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The contact related the failure to NHTSA Campaign Number: 22V746000 (Power Train); however, the VIN was not included in the recall. The failure mileage was approximately 41,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11538551August 15, 2023
ENGINE, POWER TRAIN, VEHICLE SPEED CONTROL
While I was driving the vehicle late last year (2022) I pulled out of the parking lot of my office and my vehicle did not accelerate even though I was pressing the gas pedal. I pulled over, turned off the car, restarted the car, and everything was normal again. This morning (8/15/23) as my wife was driving my son to school, the car did the same thing and the vehicle did not accelerate even though the gas pedal was pressed and the RPM's were registering but there was no drive power. She had to pull over and restart the car as well.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536620August 5, 2023
FUEL/PROPULSION SYSTEM, ENGINE, VEHICLE SPEED CONTROL
Purchased a new Hyundai 2023 Sonata from McGovern Hyundai Rt 2 May 22, 2023. After two weeks of driving the vehicle, I noticed it hesitates when I push down on the gas pedal. I had planned to have the dealership take a look but have a very busy schedule, the issue continued each time I drove the car to the point it was hesitating, basically pausing as I cross intersections. On the 26th of July I was driving on the highway, as I started to experience issues when stepping on the gas. Entering a tunnel in Boston, I pushed down on the gas pedal and noticed the car was decelerating, I was losing speed, in a panic in the center lane of the tunnel, I was able to get the car over to the far right. The car was shaking aggressively then finally just gave out and I called 911. They towed the vehicle to the police headquarters, I called Hyundai for assistance. Had some hiccups but two days later they were able to service the vehicle, supposedly found a faulty fuel injector. They changed out the 1 faulty injector test drive and said the problem was fixed. I picked up my car on July 28th 2023. There is something still wrong with the car, it still has some hesitation and now misfires. Have not heard from Hyundai, I was assigned a case manager and told someone would follow up, no one has reached out. So lucky my children were not in the car and that i'm safe. I could have been killed, others could have been hurt/killed. This should not happen to brand new cars.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11536091August 2, 2023
SEAT BELTS
The contact owns a 2021 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, his son complained that the seat belt had tightened and locked and that he was unable to adjust the seat belt. Upon arriving at his destination, the contact stated that attempts to remove the seat belt had failed and the contact decided to cut the seat belt. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 26,450.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534896July 27, 2023
WHEELS
I have had DTC codes since November 2022 for the TPMS system. I took the car to the dealership in Ocala, FL. The removed the codes and less than 10 minutes of driving they came back. I scheduled another appointment in Gainesville, FL they also were unable to resolve the issue. I contacted Hyundai and the case manager attempted to contact the Gainesville, FL dealership. They did not respond, the solution given is schedule another appointment myself...
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534635July 26, 2023
UNKNOWN OR OTHER
The power-operated driver seat has moved on its own, without warning, while the vehicle is in gear, potentially moving the driver away from being able to reach the brake pedal or otherwise control the vehicle. The vehicle uses seat position memory pre-sets and/or driver profiles, such that even if a new driver sets the seat position manually or by using a pre-defined memory setting, will move the seat to the position it was last driven in. The driver can stop the seat from moving further by either activating the seat position controls or by selecting a seat position memory setting.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534239July 25, 2023
ELECTRICAL SYSTEM
So for the past year and half my cars left turn signal has been working intermittently. It just stops working and then it starts again. I have taken it to the dealer many times they changed out signal assembly i have taken many videos show proof. I am told at the dealer if you dont bring it in when it is not working then they cannot do anything even if i have video proof documenting this issue for the past year this is a serious safety issue that must be addressed. My next step is to contact Hyundai directly hopefully you can investigate this issue. This is very dangerous.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11534010July 24, 2023
ELECTRICAL SYSTEM
The car will not lock, the signal lights do not function, I cannot open gas door, cannot unlock trunk. I took the care to the service center and they just told me it was the junction box. I saw there was a major recall to this same car for this same problem with 2016. If this is a manufacture issue I think it should be covered by warranty but they are refusing to fix without me filing an insurance claim. My car has been inoperable since June. The hazard lights are on and I cannot operate the vehicle safely without repair of the junction box per service center at Hyundai of Greenville Sc
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11531746July 12, 2023
ENGINE, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
When I approach an intersection to stop my car auto shut off engages. When trying to hit the gas to release my car from auto shut off the emergency auto shut off engages and I must put my car in park. Turn the ignition to off and then crank my car back all the way on. Release the park and drive. This happens intermittently for several weeks and I’ve almost been rear ended several times. I have taken the car to a Hyundai dealership for the issue and they tell me nothing is wrong.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530231July 3, 2023
LANE DEPARTURE: ASSIST, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, ELECTRICAL SYSTEM
I first noticed an issue with the voice resignation which also is effecting the messages navigation phone and just recently the lane assist and radar. For 2 weeks I have tried to address this with Hyundai customer service with no proper response the dealer service I stating the computer head is at fault but they have no idea when they will get one from Hyundai. I know the service people will be keeping the car for week to resolve this since the whole dashboard will be removed. I was told a representative from hyundi will be contacting me on the 5th wich I doubt will happen because when I had a problem in April 2023 I was told the same thing I had the phone nearby all day and no one ever called and I am assuming the same will happen on the 5th. This is not a dealer or service dept issue it's a hyundi problem and I am reluctant to use any of the assisted driving or rely on the safety components that this car is individually installed with.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11530147July 3, 2023
POWER TRAIN
The contact owns a 2021 Hyundai Sonata. The contact received notification of the NHTSA Campaign Number: 22V746000 (Power Train) however, the contact stated that on numerous occasions while driving at various speeds, the accelerator pedal was depressed however, the vehicle decelerated and went into "fail-safe" mode. The vehicle was taken to the dealer where it was diagnosed that the transmission control unit software needed be updated. The vehicle was repaired; however, the failure recurred. Additionally, the contact stated that prior to the recall repair, while driving at an undisclosed speed, the vehicle failed to accelerate as needed. The vehicle was taken to the dealer and the transmission was replaced. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was provided a case number and an appointment was scheduled to take the vehicle back to the dealer. The failure mileage was approximately 12,100.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11529345June 28, 2023
STRUCTURE:BODY:DOOR, AIR BAGS
The contact owns a 2023 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the air bag warning light illuminated. Additionally, the contact stated that the rear passenger’s and rear driver's side doors were leaking. The vehicle was taken to the dealer however, the mechanic was unable to duplicate the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 140.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11528159June 21, 2023
ENGINE
The contact owns a 2023 Hyundai Sonata. The contact stated that while her daughter was driving at an undisclosed speed, the vehicle lost motive power. An unknown warning light was illuminated. The vehicle was towed to the dealer; however, no error code was retrieved. The failure recurred while the contact was driving at 60 MPH. The vehicle was then taken to Serra Hyundai (1503 Gadsden Hwy, Trussville, AL 35235); however, no error code was retrieved, and the vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 80.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11527793June 19, 2023
POWER TRAIN
Took vehicle in for transmission recall on June 12th. After picking up vehicle the vehicle it was shifting harshly. On the 17th my vehicle had a code come up that said to park it and contact the dealership ASAP. Transmission code P1C2D03. The recall was supposed to prevent this, not cause it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11527730June 19, 2023
POWER TRAIN
In September 2022 I was driving the car and suddenly kept changing from sports to normal without by itself and then it slows down till engine went off, second incident happened the same exact thing in 17 June 2023, it came out that this issue from Manufacture and I don’t trust this model anymore it became life threatening
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526915June 14, 2023
ENGINE
Engine overheating warning. Hyundai cannot properly diagnose the issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526905June 13, 2023
ENGINE, POWER TRAIN
My ITMS has failed. It’s happened 5 times now where My car will say it’s over heating and go into limp mode. Then within seconds it will act like nothing happened and drive normal. My fan runs constantly and my oil temp is always high. The dealer has refused to fix the problem even with multiple repair sheets from other owners who’ve had the same problems
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526894June 13, 2023
ENGINE
Engine overheats under acceleration and fans run on high after car is shut off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526848June 13, 2023
ENGINE
The issue is well known across the DN8 platform, hundreds if not thousands of people have this problem.Car and driver even did an article on a car with this same 2.5L turbo DCT engine having the same problem! The problem is the ITMS or thermostat housing unit. I first experienced this getting on to a highway, I lost all acceleration, the turbo dropped to 0 pSI and I received an engine overheating warning on the dash. After pulling over the car resumed normal driving, but with oil temps running 30-40 degrees higher than normal. Since then, I have had loss of boost and acceleration when passing around cars which has almost caused accidents, oil temps constantly running very high and fans constantly running on full blast even after car is off. I have been to the service center 4 times, and they have failed to "replicate" the issue and stated the fan and oil problem is "normal" which it is not. This problem needs to be addressed before somebody gets seriously hurt due to loss of power unexpectedly while driving. PLEASE help! Thank you for your time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11526847June 13, 2023
UNKNOWN OR OTHER
The ITMS is failing causing engine over heating and loss of acceleration at higher speeds.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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