Which parts fail
Components named in complaints (headlights, tail lights, turn signals, interior lights).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2016 Hyundai Sonata owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2016 Hyundai Sonata. The contact stated while driving at an unknown speed, they would smell a burning odor and saw smoke exiting the hood. The contact stated they did not see any visible fire. The contact stated two weeks later, they received notification of NHTSA Campaign Number: 21V749000 (Exterior Lighting, Electrical System). The contact took the vehicle to the local dealer and made them aware of the failure. The dealer stated the closest appointment would be on 2/28/2022. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 95,000.
The contact owns a 2016 Hyundai Sonata. The contact stated that his passenger side headlight housing had melted and become defective. While driving at 55 MPH, the contact stated that the windshield wipers failed to operate without warning during a rainstorm. Additionally, he stated that the turn signals would operate in the opposite directions of his intention. The dealer was notified of the failure and informed him that the vehicle was placed under NHTSA Campaign Number: 21V749000 (EXTERIOR LIGHTING, ELECTRICAL SYSTEM); however, the remedy was not yet available. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was 111,000. Vin tool confirms parts not available.
The contact owns a 2016 Hyundai Elantra. The contact stated that while driving, there was an abnormal burning smell detected. The police pulled the contact over, who informed her the headlights were blown. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed the wiring harness was melted. The vehicle was not repaired. The manufacturer was not contacted. The approximate failure mileage was 82,459. The VIN was not available.
The contact owned a 2016 Hyundai Sonata. The contact stated that the vehicle was previously stolen, and she related the failure to Hyundai Campaign Number: 993. The contact stated while driving 25 MPH, the vehicle accelerated unintendedly to approximately 45 MPH. The contact depressed the brake pedal and the vehicle decelerated. The contact stated that the failure had been reoccurring while driving. The contact stated while driving into the driveway and coming into a complete stop, the vehicle accelerated unintendedly. The contact stated that she quickly depressed the brake pedal however, the vehicle hit the barbecue grill, and the barbecue grill struck the residence. The contact stated that the failure recurred while at the ATM, and the vehicle nearly crashed into another vehicle. …
The contact owns a 2016 Hyundai Sonata. The contact stated that while driving at an undisclosed speed with the exterior lights in auto mode, the exterior lights inadvertently turned off when the right turn signal switch was engaged. There were no warning lights illuminated. The contact stated that the failure had been reoccurring whenever the exterior light switch was in auto mode and the right turn signal was engaged while driving. The contact received a recall notification for NHTSA Campaign Number: 21V749000 (Exterior Lighting, Electrical System). The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The approximate failure mileage was 90,000.
The contact owns a 2016 Hyundai Sonata. The contact stated that she was informed that the driver's side rear taillights were not illuminating properly while turning. The contact stated that the vehicle was taken to an independent mechanic and the bulbs were replaced; however, the failure had been recurring every 3 weeks. There were no warning lights illuminated. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The approximate failure mileage was 60,000.
The contact owns a 2016 Hyundai Sonata. The contact stated that while operating the vehicle with the front headlights turned on, the lights would randomly turn off causing a visibility hazard to the driver. The cause of the failure was not determined. The local dealer was notified of the failure. The manufacturer was not contacted regarding the failure. The approximate failure mileage was 35,000.
While driving at night, when I engage my turn signal to make a turn and my headlights go off. The headlights stay off until I play with the turn signal leaver moving it up, down, forward, and backward until the headlights come back on. I see this as a major safety issue. Driving a night without headlights impairs my ability to see and for other vehicles to see me. A search on the internet displays many websites discussing this issue for my year, make and model of car. Local Hyundai said there is no recall. There was no warning lamps, messages or other symptoms presenting on this issue. It appears there is a malfunction in the turn signal switch. This has been occurring for over a month.
The first is the drivers side headlight not properly projecting light. The light projected a shadow across the center of the light preventing proper illumination in front of my vehicle. This is causing a safety issue. Brought car to dealer who confirmed that the left headlight was deformed preventing proper projection of the light. This deformity was not covered nor are there any recalls even though numerous people reported the same issue. Am working on privately replacing them both. The second was the return tensioner not properly retracting the seatbelt back in. This was not covered by the dealer but it'sa safety issue where the system may fail.
While driving at night, the low beams on the vehicle cast a very dark shadow approximately 30-40 feet in front of the car. While traveling, it us very noticeable and downright dangerous. If someone or something is in front of the vehicle, it would be hit. We have seen numerous complaints about this on the internet while searching for dilutions to the problem. Dealer says its within Hyundai specifications, however they have seen the problem and agree its very dangerous. Car was just purchased used, however we did not test drive it at night. It is so noticeable and dangerous that we try not to drive the vehicle at night.
Headlight complaints in other Sonata years
Frequently asked questions
How common are headlight problems on the 2016 Hyundai Sonata?
NHTSA has 38 complaints about the lights of the 2016 Hyundai Sonata, 5% of the model year's 727 complaints. The component named most often is headlights (2 mentions).
Is there a recall for 2016 Hyundai Sonata headlight problems?
No. NHTSA lists no lights recall for the 2016 Hyundai Sonata, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2016 Hyundai Sonata headlight problems start?
Half of the complaints with a recorded mileage happened before about 58,000 miles, and 33% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 3 fires and 0 injuries to lights 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.