The tail light assembly is part of what gets you through any dark road safely. It consists of brake lights and turn signal lights, which alert vehicles behind you when you are going to stop or turn. Damaging the tail light assembly could cost you a lot of trouble. Aside from increasing the risks of road accidents, you also face the possibility of getting a ticket for a malfunctioning tail light assembly. Here are common electrical issues on your Hyundai Sonata tail light assembly and what you should do about them:
If one of your tail lights stopped functioning, the first thing you should check is the bulb. Remove the bulb from the assembly and examine the filament. If the filament is broken, replacing the bulb would be necessary. When installing a new tail light bulb, remember that you should not touch the glass part to prevent the bulb from burning out sooner than expected.
When both tail lights won't turn on, the most likely cause is a blown fuse. Locate the fuse box and pull out the fuse with a fuse puller. Make sure that the fuse is not popped and check the thin metal strip inside the fuse. If the strip is broken, you would have to replace the fuse. If the fuse is not blown, carefully put it back in place.
Inspect the wires connected to the tail light. Make sure that they are not loose or corroded. Check for a short circuit or any other damage, which might require the wires to be serviced by a professional.
If your brake light is stuck, you might want to manually check the brake pedal switch before anything else. It is activated once you press down the brake pedal, which turns the brake lights on. If this seems to be the reason for your brake light problem, try stepping on the brake pedal with more force than the usual to loosen it a bit. If this technique doesn't work, check the fuse and the bulb of the brake light for any signs of damage.