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Common Problems of Toyota Corolla Fog Lights

Having trouble with your Toyota Corolla fog lights? We can help you get to the bottom of the issue. Discussed below are some of the more common Toyota Corolla fog light problems:

Weak Illumination

Are your Toyota Corolla fog lights producing subpar illumination? The lights themselves are most likely not to blame. Instead, there's a very good chance that this is an electrical system issue. Weak illumination is being produced by your fog lights because there isn't enough energy to go around your vehicle. That isn't normal, of course. It only means that you have a depleted car battery or a busted alternator. Replacing one of those (the faulty one, of course) is the only way to put an end to this problem.


There are only two things that can cause one of your Toyota Corolla fog lights to flicker-a loose bulb or problematic wiring. With that said, check if the bulb is loose. If it is, reattaching the bulb properly should resolve the issue. If the flickering persists, move on to the wiring and check if it's loose or damaged. Just like a loose bulb, loose wiring can be fixed quite easily. Damaged wiring, on the other hand, would have to be replaced.

Fogged Fog Lights

Ironically, your Toyota Corolla fog lights can become fogged. This is a problem that shouldn't be underestimated since fogging can significantly affect the illumination produced by your fog lights. And there's only one culprit behind this-moisture. The only way moisture can make its way inside one of your fog lights, though, is if there's an opening within its structure. Fortunately, fogging can be remedied without much hassle. All you have to do is to wipe the fogged lens with some soap, warm water, and baking soda. But to prevent this problem from occurring again, make sure that your fog lights are sealed properly. If moisture entered your fog light through a crack in the lens, then you'd have to replace the lens.

Lack of Power

If your Toyota Corolla fog lights won't turn on at all, you can bet your house that the fuse that's connected to them is blown. You won't be able to use your fog lights until you've replaced the blown fuse. Don't worry; a replacement isn't expensive. Installing it shouldn't prove to be difficult, too.

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  • Maintenance Tips: Toyota Corolla Fog Lights

    You wouldn't want your Toyota Corolla fog lights to fail you when you need them the most. For that reason, you'll want to put a bit of time and effort in their maintenance. Below are some of the ways that you can take care of your Toyota Corolla fog lights:

    Make sure that your fog lights are sealed at all times.

    This is very important. It's because openings within your Toyota Corolla fog lights serve as entry points of moisture. And you wouldn't want moisture to get inside your fog lights since they can cause the lenses to become fogged. Fogged lenses are particularly bad since they can significantly affect the illumination produced by your fog lights.

    Wipe off fogged lenses.

    You can't just let fogged lenses be. It's because, they'll weaken the illumination produced by your Toyota Corolla fog lights (as said above). And besides, getting rid of the fogging isn't a tough job. All that you'll need are baking soda, dish soap, and warm water, after all. Simply make a mixture of dish soap and the warm water and use it to wash the fogged lenses. Afterwards, apply some baking soda on the lenses. Go crazy on the baking soda if you like since it's dirt cheap, anyway. That should be enough to get rid of the fogging. But if you don't want this to happen again, make sure to follow the first tip in this guide.

    Periodically check for signs of damage and wearing out.

    Most fog lights are installed in the front bumper of vehicles. Yours are most likely in the same location. This puts your Toyota Corolla fog lights in a position that's highly susceptible to damage and wearing out. Dirt, dust, mud, and other damaging elements can-and will-make contact with your fog lights on a rather regular basis because of that. And remember, fog light lenses aren't the most durable automotive parts out there. That's why it's recommended that you periodically check your fog lights for signs of damage and wearing out. This way, you can ensure that your fog lights will be at their best every time you use them.