Getting caught in dense fog can be stressful, especially if you’re not sure how to use your vehicle’s special features. For many drivers, learning how to turn on the fog lights in a 2018 Jeep Wrangler is a simple skill that makes a big difference in safety. Fog lights help you see better when visibility drops, cutting through mist and reducing glare that can bounce off regular headlights. If you just bought a Wrangler or have never needed the fog lights before, this guide will walk you through everything step by step.
Why Fog Lights Matter On Your Jeep Wrangler
Fog lights aren’t just an extra feature they’re designed for real situations where regular headlights fail. These lights are mounted low on your Jeep, which helps them shine under the fog instead of reflecting off it.
That means you can see the road ahead and spot hazards sooner.
In places where fog, rain, or snow are common, having working fog lights is a must for safe driving.
Finding The Fog Light Controls
On the 2018 Jeep Wrangler, the fog light controls are built into the multifunction switch on the left side of your steering wheel. This is the same lever used for your headlights and turn signals. Unlike older models, there’s no separate button or dial for fog lights.
- The control is a pull-out ring on the end of the headlight stalk.
- You must have the low beam headlights on before fog lights will work.
- The fog light indicator (a green lamp symbol) will show up on your dashboard when they’re on.
Step-by-step: Turning On The Fog Lights
Turning on the fog lights in your 2018 Jeep Wrangler takes just a few seconds. Here’s how you do it:
- Start your Jeep: Insert the key and turn on the ignition or press the start button.
- Turn on the headlights: Rotate the end of the left stalk to the “Auto” or “Low Beam” position. Fog lights don’t work with high beams.
- Pull out the fog light ring: Gently pull the outer ring on the headlight stalk toward you. You’ll feel it click.
- Check the dashboard: Look for the green fog light symbol. If it’s there, your fog lights are on.
Remember, you can’t activate fog lights if only your daytime running lights are on.
When To Use Fog Lights (and When Not To)
Fog lights are powerful tools but using them at the wrong time can cause problems.
- Use fog lights in low-visibility situations: Heavy fog, snow, or mist.
- Do not use fog lights in clear conditions. The extra brightness can blind other drivers.
- Fog lights automatically turn off if you switch to high beams.
Common Mistakes And How To Avoid Them
Many new Jeep owners make small errors when using fog lights. Here are some things to watch out for:
- Forgetting to turn on low beam headlights first: Fog lights won’t work with parking or high beams.
- Leaving fog lights on in clear weather: This can distract other drivers and is illegal in some places.
- Not noticing the dashboard indicator: Always check for the green symbol to confirm your fog lights are working.
Quick Comparison: Fog Lights Vs Headlights
Understanding the difference helps you use the right light at the right time.
| Feature | Fog Lights | Headlights |
|---|---|---|
| Position | Low, near bumper | Higher, near hood |
| Beam pattern | Wide and flat | Narrow and long |
| Best for | Fog, heavy rain, snow | Normal driving |
| Legal to use always? | No | Yes |
What If Your Fog Lights Don’t Turn On?
If you follow the steps but the fog lights won’t activate, try these troubleshooting tips:
- Check the fuse: A blown fuse is a common cause. The fuse box is under the hood.
- Inspect bulbs: Fog light bulbs burn out faster than headlights. Replace if needed.
- Look for the indicator: If the dashboard symbol doesn’t appear, the lights aren’t on.
If nothing works, a visit to your Jeep dealer or a trusted mechanic is your best option.
Fog Light Settings: Manual Vs. Automatic
Some Jeep Wrangler trims come with automatic headlight settings. Here’s how that affects fog lights:
- In “Auto” mode, fog lights only work if the system turns on the low beams.
- You might need to manually switch to low beam at dusk or dawn for fog lights to work.
Data: Fog Light Usage In The Us
According to a 2021 report by the National Highway Traffic Safety Administration, using fog lights in bad weather can reduce nighttime accidents by up to 15%. However, only about 40% of drivers use fog lights properly, often because they’re unsure how or when to turn them on.
Extra Tips For Safe Fog Driving
- Keep your windshield clean: Dirt scatters light and reduces visibility.
- Drive slower in fog: Even with fog lights, hazards appear quickly.
- Don’t use high beams in fog: High beams reflect off water droplets, making visibility worse.
Comparison: Factory Vs Aftermarket Fog Lights
If you want better performance or a different look, you may consider changing your Jeep’s fog lights. Here’s a quick comparison.
| Type | Brightness (lumens) | Lifespan (hours) | Warranty |
|---|---|---|---|
| Factory (OEM) | 800-1000 | 3,000-5,000 | Yes |
| Aftermarket LED | 1,200-1,800 | 10,000+ | Varies |
Some aftermarket fog lights are brighter and last longer, but always check local laws before upgrading.
Frequently Asked Questions
How Do I Know If My Jeep’s Fog Lights Are Working?
Check for the green fog light symbol on your dashboard. You can also step outside and look at the front lights. If the low, wide beams near the bumper are lit, your fog lights are on.
Can I Use Fog Lights With High Beams?
No. On the 2018 Jeep Wrangler, fog lights switch off automatically when high beams are activated.
This is to prevent glare and confusion for other drivers.
Are Fog Lights Legal To Use All The Time?
Fog lights are legal in most states only in low visibility conditions. Using them in clear weather can get you a ticket and cause problems for other drivers. Always turn them off when not needed.
What Should I Do If A Fog Light Bulb Burns Out?
Replace the bulb with the same type and wattage as listed in your owner’s manual. If you’re unsure, many auto parts stores can help you find the right bulb. If you want more information, the official Jeep website is a reliable source: Jeep Wrangler Official.
Can I Upgrade My Fog Lights To Leds?
Yes, but use LED kits designed for the 2018 Jeep Wrangler. Make sure any upgrade is street legal in your area. Some aftermarket lights are too bright for road use.
Turning on the fog lights in your 2018 Jeep Wrangler is easy once you know where to look. Practice the steps before you need them in an emergency, and you’ll drive safer when the weather turns bad.
Fog lights are a small detail that make a big difference don’t overlook them next time you’re on the road.
