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 2012 Kia Sorento owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2012 Kia Sorento. The contact noticed that the driver's side headlamp failed to operate as needed. The vehicle was taken to an independent mechanic where it was diagnosed that the wiring had melted, and the headlamp socket needed to be replaced. The vehicle was repaired however, a couple of months later the failure recurred on the passenger's side. The vehicle was taken back to the mechanic where it was diagnosed the wiring melted and the passenger's side headlamp socket needed to be replaced. The dealer was contacted twice. The manufacturer was notified of the failure twice. The approximate failure mileage was 147,000. Headlight has replaced once 02/22/2022.
The contact owns a 2012 Kia Sorento. The contact stated that the passenger's side front headlight had stopped working. Upon inspection, the contact noticed that the wiring harness in the headlight was melted. The vehicle was not diagnosed by an independent mechanic or dealer. The headlight assembly was replaced however, the failure recurred. The manufacturer was not informed of the failure. The failure mileage was approximately 68,000.
The contact owns a 2012 Kia Sorento. The contact stated that the front headlights had begun to flicker and then would turn off while driving at night. The contact stated that the failure had started as an intermittent failure, however, the low beam setting had failed and no longer worked. The contact only had high beams. The contact stated no warning light was illuminated. The contact had opened the hood during daylight and saw that the headlight wiring harness and connectors had melted on the driver's side. The contact stated that she could touch the passenger side lamp harness and the light would work. However, if she attempted to tighten the harness connection the light would not work. The contact had taken the vehicle to a local dealer where it was not diagnosed or repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 133,000.
The low-beam headlights frequently burn out, approximately every 6 months. Upon inspection by multiple repair shops, the wiring harnesses have been found to be blowing the bulb yet each shop has replaced with a variety of parts. The suspicion is the wiring and power source are causing issues. Each side of the vehicle has had the wiring harness replaced with the right side being replaced twice and currently in need of a third replacement. The initial replacement was in 2018 and most recent replacement was 2023. The headlight will flicker on and off intermittently before the bulb or wiring harness blow. There is no predicting when this will occur which leaves the driver at risk of losing one or both headlights, needing immediate repair for safety and to avoid a potential ticket from the police.
Low beam headlights on passenger side burn out at a rate of 1 to 2 per year. I am the original owner and the vehicle has never been in an accident. Dealer replaced headlight wiring and high beam switch on steering column under warranty because plug at headlamp melted and switch seemed faulty. This repair was approximately 4 years ago. Headlights burning out has been a problem since new. Seems to happen most often when High beams are used and going back to low beams. Inspect at any time. Living in rural Texas with little to no street lights it can be unnerving to have the low beam on one side unexpectant burn out. I write all of this because it burned out again last night and it's getting frustrating.
Replaced the headlight bulbs in my wife's car around 80k miles when 2 of the 4 bulbs went out. I noticed the lenses were discolored from the inside slightly but didn't put much thought into it. The vehicle now has a little over 144k miles and I have replaced the high beam bulbs once again, and the low beam bulbs twice more, and the low beam bulbs I have had to replace the connector due to burning on both sides, and the driver side is burnt out again. This shouldn't happen and means there is too much power going to the bulb, which is a fire hazard as well as a safety hazard as I can't keep a bulb working in that slot.
Passenger side headlight went out while driving. Went to replace bulb and found connector melted. Quick internet search shows this is not uncommon and even a YouTube tutorial on how to replace the pigtail. Question remains what caused the overheating in the first place? While it's a major inconvenience at this point as we can't drive the vehicle without fear of getting a ticket or repair order until fixed, worst case scenario this happens to both at night?
My passenger headlight went out again. I've taken to the dealer. They replaced the burnt out fog lights too. This is the 4th time in less than a year! I filed previous complaints. Had the headlights replaced repeatedly. Something keeps shorting out. There's an electrical problem. I can't keep replacing my headlights all the time. When the one side goes out, the other follows. This is becoming a real safety issue.
My regular lights on pasenger side keeps going out. The harness keeps melting. And my sunroof rubber pieces keep coming undone hitting the glass of sunroof causing very loud noises while driving sounds like the glass is going to break.
Passenger side low beam headlight keeps burning out. Had bulb replaced one month ago, burnt out again. Had it replaced several times. One time recently the mechanic had to also replace the wiring connections because it melted.
NHTSA investigations
Headlight Failure
The Office of Defects Investigation (ODI) opened this Preliminary Evaluation (PE) based on seventy-four Vehicle Owner Questionnaires (VOQs) reporting headlight failures on model year (MY) 2011-2013 KIA Sorento vehicles.In its response to ODI's June 25, 2020, information request letter (portions of which were submitted under request for confidentiality), Kia Motor America (Kia) provided design details of the…
Headlight complaints in other Sorento years
Frequently asked questions
How common are headlight problems on the 2012 Kia Sorento?
NHTSA has 60 complaints about the lights of the 2012 Kia Sorento, 7% of the model year's 880 complaints. The component named most often is headlights (5 mentions).
Is there a recall for 2012 Kia Sorento headlight problems?
No. NHTSA lists no lights recall for the 2012 Kia Sorento, though it has 5 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 2012 Kia Sorento headlight problems start?
Half of the complaints with a recorded mileage happened before about 96,000 miles, and 3% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 5 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.