2012 HYUNDAI SONATA Complaints

View complaints related to 2012 HYUNDAI SONATA. The complaints found here are submitted by actual consumers with first hand experience. There are more than 1,630 complaints submitted for the 2012 HYUNDAI SONATA. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

  • 2012 HYUNDAI SONATA
    - Mays Landing, NJ

    The contact owns a 2012 Hyundai Sonata. The contact stated while driving 30 MPH, the vehicle downshifted unintendedly and decelerated. The contact stated that she shifted into neutral(N). The contact pulled over to the side of the road and remained there for several minutes. The contact was able to continue driving; however, the failure recurred while driving. The contact stated that the failure had been recurring increasingly. The vehicle was taken to the dealer, where the failure recurred while the vehicle was being test-driven; however, the dealer informed the contact that they could not determine the cause of the failure. The dealer informed the contact that the steering wheel needed to be disassembled to inspect the paddle shifters. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure. The failure mileage was 100,300.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 HYUNDAI SONATA
    - San Antonio, TX

    The engine on my vehicle is knocking and causing the vehicle to slow down on its own and the vehicle to overheat.

    Source: NHTSA WEB SITE
  • 2012 HYUNDAI SONATA
    - Bedford, TX

    The contact owns a 2012 Hyundai Sonata. The contact stated that after starting the vehicle, the contact attempted to shift into gear, but the transmission failed to shift as intended. There was no warning light illuminated. The contact pressed the release button and the transmission shifted; however, the vehicle was driving abnormally. An independent mechanic was contacted and stated that the vehicle might be experiencing the failure listed in NHTSA Campaign Number: 14V434000 (Power Train) and advised to contact the local dealer. The vehicle was not diagnosed or repaired. The dealer was contacted and stated that the vehicle was not included in the recall. The manufacturer was not contacted. The failure mileage was 170,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 HYUNDAI SONATA HYBRID
    - Birmingham, AL

    The contact owns a 2012 Hyundai Sonata Hybrid. The contact stated while driving at various speeds, the message "Pull Over. Stop the Vehicle" was displayed, and the vehicle failed to respond upon depressing the accelerator pedal. The contact veered to the side of the road and turned off the vehicle. The contact stated that the vehicle became drivable after waiting 30 minutes to an hour. The contact stated that the failure had been recurring while driving. Additionally, the contact stated that while reversing and depressing the accelerator pedal, the vehicle jerked, made an abnormally loud sound, and failed to respond. The contact shifted into park(P) and shifted back into reverse(R), and the vehicle jerked and responded. The contact stated that while driving at various speeds and depressing the accelerator pedal, the vehicle jerked and hesitated to respond. There was no warning light illuminated. The contact stated that she had taken the vehicle to an independent mechanic, where a diagnostic test was performed. The contact was referred to the dealer for assistance. The dealer and the manufacturer were not notified of the failure. The vehicle was not repaired. The failure mileage was unknown.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 HYUNDAI SONATA
    - Lexington Park, MD

    The contact owns a 2012 Hyundai Sonata. The contact stated that while driving at 45 MPH, the the passengers side tail light failed. No warning light was illuminated. The vehicle was driven to the independent mechanic where it was diagnosed that the tail light needed to be replaced. The vehicle was repaired however the failure reoccurred and was taken back to the independent mechanic where they stated the harness had melted and advised that he go to the dealer. The vehicle was taken to the dealer where it was confirmed that the passenger's side tail light harness was charred and deformed. The vehicle was repaired but the failure reoccurred. The vehicle was taken back to the dealer for a second time where it was informed that the harness or housing had been scorched and the tail light socket melted. The vehicle was repaired. The contact stated while driving 45 MPH, the accelerator had been depressed but the vehicle was slowing down. The contact managed to drive home safely. The following day the vehicle did not start. The vehicle was towed to the independent mechanic where it was confirmed that the battery failed due to the tail light being illuminated all night. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was 78,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 HYUNDAI SONATA
    - Farmers Branch, TX

    The vehicle have shift control problem, it jerks hard when put into drive or reverse, also when going up a small hill it feels like the vehicle hangs in between changing from electric to gas. Also there is always a warning that comes on saying " Hybrid System Warning Safety Stop and Do not Drive". The car stops when driving, which makes it dangerous. Took it to two dealership in MCkinney and Irving and they could not fix the problem but rather charge me for diagnosis. All they say is buy new transmission. I called Hyundai for help and all they tell me is that there is no recall on 2012 hybrid model. Its frustrating because thats the only vehicle that i used for work. Need help. Thanks

    Source: NHTSA WEB SITE
  • 2012 HYUNDAI SONATA
    - Valdosta, GA

    I have a 2012 Hyundai Sonta. The brake lights are not working properly. I have been changing the tail light for some time now but it doesn't seem to be working. At first all lights came on and they wouldn't go off until I took the battery cable wire off. Then on another day the brake light in the back window, got stuck and the turn signal wasn't lighting up(no brake , nor turn signal lights but it showed in the car like it was working.when hitting the blinkers. I have taken it to several car shops even the dealership to have it checked out. I was told that it wasn't nothing wrong, but got stopped by police on numerous occasions cs the car didn't have Bck lights. The last shop i took it to said that it was the cars electrical system. I've checked to see if there was recalls.Doesn'tshow anything. It should be recalls on this, cause that's a safety hazard. Knowing you just changed out the lights and then boom u have no lights to show your turning or just on the road period at night. This is dangerous , I've almost got rear ended by a semi n other vehicles that was behind me and i had my granddaughter in the vehicle. Please check into this for the safety of ppl like me. Thanks in advance..

    Source: NHTSA WEB SITE
  • 2012 HYUNDAI SONATA
    - Las Vegas, NV

    Hybrid System Malfunction. The "Hybrid System Warning! Safely Stop and Do Not Drive" appeared on the vehicle dashboard. While traveling on the highway or in town the vehicle will want to slow down then stop. The dealership's (Wyatt Johnson Hyundai) Clarksville, TN, maintenance tech have troubleshot the vehicle. Since my daughter and I have owned the vehicle, it has been seen by the dealer a few times during this time a transmission replacement was completed for the Hybrid System Malfunction, which did not solve the problem and I had to pay out almost $6,000. Still, same issue arises and also, I was told by another tech that the transmission is sealed and should not have been opened. The only thing we heard from the dealer(Wyatt Johnson Hyundai) was to come and pick up the car. When my son-n-law went to pick up the vehicle, the engine was still torn apart. They said they would fix it and then let us know when it is ready to be picked up. We have not heard anything from the dealer (Wyatt Johnson Hyundai) at all, assuming they are still working on it. Until, we received a letter from Express Auto the the vehicle was towed and reported abandoned. So, I drove to Clarksville, TN and trailered the vehicle back to Las Vegas, NV to have the Hyundai techs here diagnose the vehicle.

    Source: NHTSA WEB SITE
  • 2012 HYUNDAI SONATA
    - Nashville, TN

    The contact owns a 2012 Hyundai Sonata. The contact stated that the vehicle was consuming an excessive amount of engine oil. The contact stated that the check engine warning light had remained illuminated. The contact stated while driving at 40 MPH, the vehicle shut off and failed to restart. The vehicle was towed to a dealer. The contact was informed that there were no recalls on the VN. The vehicle was then towed to an independent mechanic where the contact was informed that the timing chain had fractured and needed to be replaced. Additionally, the contact stated that the headlight and taillight bulbs would burn out and require frequent replacement. The vehicle was not repaired. The failure mileage was approximately 185,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 HYUNDAI SONATA
    - forest hill, TX

    i’ve been having issues with the brake lights being sometimey sometime it works and sometimes not, and almost been in accidents once too many times. i’ve also notice a lot of hyundais especially sonatas that’s on the road have the same issue. i’m at a loss in what to do with having to change light bulbs every month it acts up with both break lights. horn doesn’t work. it stopped months ago and fused changes and still no horn work. the other day while driving it brought someone was blowing at me so i turned down the radio and heard my very own horn blow on it’s own several times it does this off n on even at the light or while driving. i don’t have money to fix all these issues with this car. hopefully we can get a recall and get this fixed!

    Source: NHTSA WEB SITE