Hyundai Sonata

This vehicle had a recall, 201, for the smart junction box. This was due to the blinkers not working properly. The software update was performed, however, the problem still exists. This was due to the smart junction box. Now, aside from the blinker issue, the ac stays on when the engine is turned off, lights come on by themselves, the media screen goes randomly into night mode, daylight running lights are constantly in night mode, smart junction box failure. I have not taken this to a…

Driver's side seatbelt retraction mechanism failed without warning. Intentionally brought car to dealer ASAP since it was close to 100,000 miles pointed out. This was serious safety defect dealer refused to repair under warranty.

As I was merging onto the interstate I put my foot on the gas pedal to give it a little more gas then usual to get pulled out and all of a sudden all the lights on the dash board illuminated and it slowly lost all power I was able to move it out of the road ... There was no loud ,knocking or ticking noises prior to this happening there was no type of any kind of warning .. my car is the push start button so after the car died completely I hit the push button and all the lights on the dash came…

The primary failure is in the Engine/Powertrain system and Knock Sensor Detection System (KSDS), causing 6 identical sudden engine stalls (OBD-II code P1326) from 09/2000 to 06/2026. Additionally, severe excessive oil consumption was documented during 2 of these diagnostic visits, showing deep-seated engine issues. The vehicle and all records are available for inspection at the Hyundai dealer. Safety was severely threatened on 6 occasions. The vehicle abruptly stalled at 60+ mph in active…

Bought car from a used car dealership, car fax report filed 3 other owners, with a well maintenance report on file with oil change done atleast every 5K miles. Bought car in January 2026, maintenance had been done before car was taken off the lot. At 3k miles since hsving the ca on 05/15/26 I got my oil changed and cabin filters replaced. It’s only been less than 1500 miles and car engine had reportedly seized.

Cylinder 3 misfire code and rough idle/driving car tries to stall out, engine is consuming a quart of oil every 500 miles and has 30psi compression in cylinder 3. Car only has 129k miles

On June 22, my 2015 Hyundai Sonata suddenly lost all electrical power without warning. The vehicle stalled and would not restart. There were no warning signs beforehand. After the incident, the car had no electrical power and was inoperable. Further inspection determined that the engine had failed and required replacement. I maintained the vehicle with regular oil changes and was unaware of Hyundai’s Service Campaign 953 (KSDS update). I was never notified that this campaign needed to be…

The check engine lights blinking, it overheats and it shuts down.

May 23rd, 2026, vehicle dash and navigation screens went black while driving on freeway. May 26th, 2026, vehicle battery completely drained. Purchased new battery and the same thing happened. Took the vehcile 3x to Hyundai dealership, switched out battery for a brand new OEM one. June 10th, vehicle died again, battery was completely drained. Dealership said its not the alternator but only jumped the vehcile since they couldn't figure out the issue. July 11th, 2026, vehcile died for 4th time and…

I had the Service Campaign 9C2 and TSB 25-01-087H recall emissions update performed. I immediately noticed degraded performance with my vehicle. It's very jumpy/stuttery after I first start driving and feels less responsive. Even after driving for a bit, it feels like it drives and shifts oddly. It is not as smooth as it used to be. My car drove fine prior to the update and immediately felt different after the update. It's now been over a week and it's still like this, so it's not the engine…