Skip the auto shop - Our mechanics make house calls

Q: When Should Fog Lights Be Used?

asked by on

When should fog lights be used?

A: There is a great difference between "f...

There is a great difference between "fog lights" and "driving lights." Not only are the lights themselves different, but the reason for their use differs, as well.

Fog lights are only used in certain scenarios. For example, in times of low visibility typically due to weather conditions, such as fog (go figure), mist, rain, etc. fog lights are needed. Fog lights are used in conjunction with the low beam headlamps. The light dispersion of fog lamps is very wide, but the light beam is directed only a short distance in front of the vehicle to enhance the visibility of the road directly ahead of you.

Driving lights, on the other hand, are used in conjunction with the high beam headlamps. High beams project light for a long distance in front of the vehicle. This leaves the area directly in front of the vehicle less visible. Driving lights have a more narrow dispersion area than that of fog lights, but they do illuminate more of the road in front of the vehicle, thereby augmenting the high beam headlamps.

Most vehicles that come with factory-installed auxiliary lights are fog lights, not driving lights. Check with your local and state laws concerning the use of driving lights on your vehicle before having them installed. If you run into any problems reach out to a certified mechanic, they will be able to ensure that your fog or driving lights are working properly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I turn the dome lamps on?

The dome lamps are on the ceiling of your vehicle, and help illuminate the cabin of your car. To turn on the dome lamps, press the on button (which has a symbol of a sun), on the dome lamp control...

Q: How do I turn on the fog lights?

If your car is equipped with fog lights, you can use them to provide better visibility when driving in foggy, misty and rainy conditions. These are secondary lights that are tied to your primary headlight system, but aren’t technically part...

Q: Can I replace the headlights with those from a 2007? I heard the wiring is completly different

You would be better off looking online for the correct ones for your 2002 Ford Escape. You should replace the lights with correct fitting ones. The light circuits are different for those two years and are therefor not compatible. If...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...