Symptoms of a Bad or Failing Fog/Driving Light Bulb

The fog light bulbs are the bulbs that are located underneath the headlights, and provide the illumination for the fog lights. They are usually high intensity bulbs, sometimes tinted yellow, and are designed to help increase visibility. The light provided by the fog/driving lights make the vehicle easier to see for other drivers and make the edges of the road easier to see during adverse conditions, such as heavy rain or dense fog. As the bulbs are what provide the illumination for the fog lights, when they fail or have an issue, they can leave the vehicle without functioning fog lights. Usually a bad or failing fog light bulb will produce a few symptoms that can alert the driver of an issue.

Fog lights are dim or flickering

One of the most common symptoms of a problem with the fog light bulbs are fog lights that are dim or flickering. If the fog lights begin to suddenly shine more dimly than normal or flicker when they are turned on, then that could be a symptom that the light bulbs are worn. Aside from not providing proper illumination, usually dim or flickering bulbs are also approaching the end of their service life and likely only have a short time before they fail completely.

Fog lights do not turn on

Another symptom of a problem with the fog/driving light bulbs are fog/driving lights that do not turn on. If the bulbs break or the filament wears out for whatever reason, it will leave the fog lights without functioning bulbs. Broken or non-functional bulbs will have to be replaced to restore functionality to the fog lights.

Fog light bulbs are the same as any other bulbs. While fog lights are only utilized during specific driving conditions, they are an important feature that can increase safety. If you suspect that your fog/driving light bulbs may be out, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if your car will need a fog/driving light bulb replacement.


Next Step

Schedule Vehicle Body Electrical and Lighting Inspection

The most popular service booked by readers of this article is Vehicle Body Electrical and Lighting Inspection. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. We currently cover over 2,000 cities and have 100k+ 5-star reviews... LEARN MORE

SEE PRICING & SCHEDULING

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Recent Vehicle Body Electrical and Lighting Inspection reviews

Excellent Rating

(171,627)

Rating Summary
161,099
5,644
1,174
834
2,876
161,099
5,644
1,174
834
2,876

Chris

22 years of experience
2223 reviews
Chris
22 years of experience
Jaguar XJ8 V8-4.2L - Smell in the car - Orange, California
I was very pleased with the service provided by Chis
Audi S4 - Valve Cover Gasket - Anaheim, California
He was on time. Was willing to come and fix a part that broke on a couple days later. Would highly recommend.

Chris

6 years of experience
82 reviews
Chris
6 years of experience
Chevrolet Cavalier L4-2.2L - Vehicle Body Electrical and Lighting Inspection - Jonesboro, Georgia
Genuinely seemed to care about meeting the expectation of me (the customer) with a corrective remedy to my automobile's electrical issue. Genuinely seemed to want to deliver long-term issue-free results.

Matthew

33 years of experience
1210 reviews
Matthew
33 years of experience
Pontiac Firebird V8-5.3L - Vehicle Body Electrical and Lighting Inspection - Newport News, Virginia
Arrived on time, very professional and knowledgeable - especially about my old car.

Marco

29 years of experience
221 reviews
Marco
29 years of experience
Ford F-150 V8-5.4L - Vehicle Body Electrical and Lighting - Highland, California
Great experience! Marco showed up right on time and was very polite and pleasant. He got right to work and assessed my problem quickly and made recommendations for repair which I was able to take care of myself later. Very good experience and would definitely use Marco again!

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Related articles

How to Replace the Headlights on a Toyota Prius
Your headlights are one of the most important safety components for your car. A broken headlight bulb can endanger yourself and others on the road.
How to Replace a Console Shift Indicator Bulb
Console shift indicator bulbs allow you to view your gears in the dark. This bulb can either last the life of the car or break unexpectedly.
What Does the Bulb Failure (Exterior Light Fault, License Plate Bulb, Brake Light Bulb) Warning Light Mean?
The bulb failure light turns on when any exterior light on your car isn't working. It's important to fix this so others can see your car's position.

Related questions

How do you operate the fog lights?
If your Fusion is equipped with fog lights, they can provide you with dramatically better visibility when driving in misty or foggy conditions. Of course, you’ll have to know how to turn them on and off to actually enjoy those...
Driver's side headlight keeps burning out. High beams and running lights are fine.
Hello. Thank you for writing in. There are several reasons why your bulb would continue to burn out prematurely. The first thing you want to check is that you are wiping any oils from your hands off of the bulb....
electrical issue and the tail light bulbs keep popping.
Hi there. Sounds like there is a few different electrical issues with your vehicle. Check the door courtesy light switch for a loose ground or a short in the wire. A loose ground will cause the interior lights to work...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com