Over the last 2 years we have changed all the bulbs to the highlights and signals lights on front and back at least three times and I got stopped again and another one was out that I just changed. Is there an electrical problem with the Elantra 2014.
The inside of the light housing is supposed to be designed to keep moisture off the bulbs. Many housings have vents to allow moisture to drain from housing. Check to see if these vents are plugged. I’ve seen housings fill with water half full.