Which parts fail
Components named in complaints (front, side and curtain air bags, sensors and inflators).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2012 Hyundai Sonata owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owned a 2012 Hyundai Sonata. The contact received notification of 18V137000 (Seat Belt, Air Bags) on October 2019. The contact took the vehicle to the local dealer and had the recall remedy completed. The contact stated while his wife was driving 35 mph, another vehicle intercepted her lane and crashed into the front driver-side tire. No air bags deployed. The driver sustained injuries on her left leg and her neck but did not seek any medical attention at the moment of the crash. The contact stated the following day, she called her primary doctor and was receiving physical therapy for her injuries. A police report was filed. The vehicle was not drivable. The insurance company deemed the vehicle a total loss. The vehicle was towed to a collision shop. A dealer was not contacted nor made aware of the failure. The manufacturer had been informed of the failure. …
Airbag clock springs module malfunction disabling emergency deployment of the driver's side airbag in the event of a collision. My 2012 Hyundai Sonata 2.0 Turbo with 93,336 miles on it, ending seized up going at highway speed causing instant and complete loss of power. Smoke started coming out from under the front engine compartment hood making me think the car was on fire. Trying to get the car manuvered off the highway and over to the right side of the road I was almost involved in a collision with other traffic. I was scared almost to death. Hyundai Motor America is now refusing to repair my vehicle even though it is covered under their extend warranty.
On March 19th, 2022 I was t-boned and my airbags failed to deploy causing me to slam my head against my window. I herniated two discs in my neck because of the accident. My 2012 Hyundai Sonata had just had it's engine replaced due to the engine recall and had also never been in a wreck. My airbag light came on after the wreck. Sent my car to be fixed and light went off. I was hit again 2 weeks ago and afain, airbags failed to deploy. Notified Hyundai of the situation and was told my car wasn't part of the airbag recall.
The contact owns a 2012 Hyundai Sonata. The contact stated that he purchased the vehicle and noticed that the dashboard was severely cracked. The air bag and check engine warning lights were illuminated. The vehicle was taken to the dealer and the contact was informed about similar failures with 2011-2014 vehicles. The vehicle was not repaired due to the cost. The manufacturer was made aware of the failure. The approximate failure mileage was 89,696.
The contact owns a 2012 Hyundai Sonata. The contact stated that the airbag warning light illuminated on the instrument panel upon the start of the vehicle. The contact called the local dealer and an appointment was scheduled to diagnose the vehicle. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 41,000.
Airbags failed to deploy. I was involved in a hit and run accident. Vehicle has not been inspected. I had a recall done on it with paperwork confirming it was fixed. I have 4 herniated discs in my back and neck.
On March 19th I was involved in wreck where the other driver was at fault. The lady t-boned me on my driver's side. Airbags never deployed so my head smashed Into the window leaving me with a concussionand spinal injury. My usually working horn failed as well. I would also like to mention that I have only had this car a year. I was also told it was never in a wreck and had 1 owner. Nope. A week after I got it, I was driving and my engine seized while I was doing 70mph. The steering stopped working, but somehow managed to pull off to the side. i had to stay in my car because of the busy highway. It was 100+ weather and my windows wouldn't work. I sat there for 2 hours. Took the car to a shop just to find out about the engine recall that I believe my car wasn't apart of, but should have been. …
My 2012 Hyundai Sonata (VIN: [redacted] ) experienced complete engine failure at 241,433 miles on August 7, 2025. The failure aligns with known safety defect symptoms described under NHTSA Recall Campaign 15V568000 and 17V226000, which cite premature bearing wear due to metal debris during engine manufacturing. My vehicle had previously received the knock sensor update under Campaign T3G and failed the BCT (bearing clearance test), confirming bearing damage. Despite this, Hyundai denied my engine replacement claim, stating the issue was related to a fuel pipe and not a rod bearing issue-this is contrary to their own recall documentation and dealer diagnosis. Hyundai continues to deny engine replacement, in violation of their federal recall obligations under 49 U.S.C. 30120. Their refusal endangers public safety by ignoring engine failures that can lead to stalling and crashes. …
Knock sensor needs to be replaced upon evaluation of an inspection on March 27, 2026. It failed a mission codes and upon my understanding the knock sensor one circuit range performance pink wonder single sensor is an engine failure as well as I did an ODB test myself on May 19 of 2026 for the Knox sensor as well and the check engine dominator reading at 2111 the the code indicated that bank one Knox and electrical circuit was out of it upper range or had it perform problem for a predetermined period of time and the code is P0326 and the secondary DTC is a combustion vibration sensor a circuit range performance which affects the powertrain. …
2011-2013 SONATA (YF) AND AIRBAG CONTROL UNIT (RECALL CAMPAIGN 174) I did the recall at Sterling Mcall in 10/2022 and I had no airbag light before after I did the recall the airbag light came on the dashboard -The dealers scanned the car and it is visible on the baseboard however the dealer is reluctant to repair it and asked 3 weeks of diagnostic and 500 dollars only for diagnostic and nothing about the repair I showed them the recall repair failure is their responsibility and the airbag should be permanently fixed not to be worried about it from time to time The dealer's excuse is that car titles salvage however the car is being serviced at the dealer and is passing state inspection every year. I filed a complaint in BBB nad the dealer failed to respond and sent me a threatening letter for emailing their executive.
Related recalls
Air bags › Air bag/restraint control module
Hyundai Motor America (Hyundai) is recalling certain 2011-2013 Sonata and 2011-2012 Sonata Hybrid vehicles. On February 27, 2018, Hyundai Motor Company (Hyundai) notified NHTSA that they were recalling 154,753 model year 2011 Sonata vehicles.
Remedy: Hyundai will notify owners, and dealers will install an external wire filter kit, free of charge. The recall began October 15, 2018. Owners may contact Hyundai customer service at 1-855-371-9460.
Air bags › Side/window
Hyundai is recalling certain model year 2012-2013 Hyundai Sonata passenger cars, manufactured from January 24, 2012, through June 21, 2012. The curtain side airbags on these vehicles may inflate without deployment command due to an error during manufacturing.
Remedy: Hyundai dealers will notify owners, and dealers will replace the curtain side airbags free of charge. This recall began on August 31, 2012. Owners may contact Hyundai at 1-800-633-5151.
NHTSA investigations
Air bags may be disabled during crash
The Office of Defects Investigation (ODI) opened PE18-003 on 3/16/18 to investigate incidents involving crashes, resulting in significant collision related damage, where the frontal airbags failed to deploy. ODI reviewed complaint data, available design, test, and field data on the model year (MY) 2011 Hyundai Sonata, MY 2012-2013 Kia Forte and Forte Koup vehicles.
Airbag complaints in other Sonata years
Frequently asked questions
How common are airbag problems on the 2012 Hyundai Sonata?
NHTSA has 170 complaints about the air bags of the 2012 Hyundai Sonata, 11% of the model year's 1,558 complaints. The component named most often is frontal (1 mentions).
Is there a recall for 2012 Hyundai Sonata airbag problems?
Yes — NHTSA recall 18V-137 (air bag/restraint control module, Feb 27, 2018); NHTSA recall 12V-352 (side/window, Jul 24, 2012). Recall repairs are free at authorized dealers.
At what mileage do 2012 Hyundai Sonata airbag problems start?
Half of the complaints with a recorded mileage happened before about 83,000 miles, and 10% before 25,000 miles.
Is it dangerous?
Owners linked 18 crashes, 2 fires and 12 injuries to air bags problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.