2018 Hyundai Santa Fe Sport: headlights failing or too dim

Filed Jan 13, 2026 · Electrical, Lights · 18,000 miles · IA

The contact owns a 2018 Hyundai Santa Fe Sport. The contact stated that the headlights suddenly illuminated without the vehicle being turned on, causing the battery to be drained. The contact recharged the battery to start the vehicle. The contact stated that the light switch failed to turn off the high beam headlights; however, the headlights and the indicators were no longer illuminated. The vehicle was towed to the dealer, who stated that the junction block had failed and needed to be replaced; however, the contact was not sure of the cause of the failure and needed to repair the vehicle. The dealer diagnosed the vehicle that an interlock casing, fuse, and relay that had melted, and that the switches were not responding, but could not confirm what caused the failure. The contact learned that the vehicle was previously included in a recall for another junction box that had been repaired. The contact was unable to provide the recall campaign. The vehicle was not repaired. The manufacturer was informed of the failure and opened a case. The failure mileage was approximately 18,000.

Filed Nov 30, 2022 · Lights · 58,000 miles · NY

The contact owns a 2018 Hyundai Santa Fe Sport. The contact stated while making a left turn, the headlights became inoperable. The contact manually switched the headlights on and off several times until the headlights returned to normal operation. The contact stated that the headlights were also turned off while the turn signals were activated. The vehicle was taken to the dealer and the contact was informed that the multifaction switch in the steering column needed to be replaced. The manufacturer was not contacted. The failure mileage was 58,000. The VIN was not available.

Filed Dec 13, 2019 · Lights · FL

Purchased vehicle in june 2018 and noticed a problem with headlights, shadow on roadway when driving. I noticed in housing that there were finger prints on lenses and took vehicle back to dealer for remedy...they replaced headlight on driver's side. Did not think anything else about it until I drove the vehicle during darkness. Shadows were observed on side of road that could and did hide bikers/walkers on the side of the roadway. Upon closer inspection of the lights while parked, I noticed that these shadows were also observed on the passenger side. Passengers in vehicle also noticed headlight problems on both sides of vehicle. I contacted dealer about this problem and was told that this was made that way during manufacturing. As time passed, anytime that I took vehicle out during night time hours, whether on the highway, interstate, or country road, these dark spots were always visible and continue to prevent me as a driver from seeing the roadway in its entirety. A photo is attached that was taken today, but the problem has persisted and have met with no solution being offered by the dealer or manufacturer. I decided to file a formal complaint on this ongoing problem with this vehicle's lighting problems.

Filed Sep 26, 2018 · Lights · 999 miles · NY

Both of headlight and fog light is getting foggy two day after I got the car from the dealer.replaced with a new one and still getting foggy.

Filed Jun 21, 2018 · Lights · 500 miles · IL

Low beam headlights have a dark spot approx. 100 feet in front of the vehicle in the left hand lane. Hyundai says it is designed that way to prevent glare with the hid lights the vehicle has. It is hard to see much in the left lane when driving. The attached photo shows the dark spot on the left side of center. It has been that way since I first drove the car at night. I think it is a definite safety issue.