If you drive a 2018 Jeep Grand Cherokee, using the fog lights correctly can make nighttime or foggy driving safer. Many owners are unsure about how to turn on these lights, especially if they are new to the vehicle or unfamiliar with the controls. This guide explains step-by-step how to activate the fog lights, highlights important safety tips, and answers common questions. By the end, you will know exactly when and how to use fog lights on your Jeep Grand Cherokee without confusion.
Where Are The Fog Lights Controls?
Most 2018 Jeep Grand Cherokees have fog light controls built into the headlight switch. This switch is found on the left side of the steering wheel, on the dashboard. The switch has different settings for parking lights, headlights, and fog lights.
Dashboard Switch Details
- The switch is a round knob.
- It usually has a small symbol for fog lights (a lamp with horizontal lines).
- Fog lights can only be activated when the low beam headlights are on.
Step-by-step: Turning On Fog Lights
Follow these steps to safely turn on your fog lights:
- Start your Jeep. Turn the ignition key or push the start button until the engine runs.
- Turn on the low beam headlights. Rotate the headlight switch from “off” to the low beam setting.
- Pull the switch outwards. Gently pull the knob toward you. This action activates the fog lights.
- Check the indicator. A small light symbol appears on the dashboard if fog lights are on.
If the fog light indicator does not appear, check that the headlights are set to low beam. Fog lights will not work with high beams or if only the parking lights are on.
When Should You Use Fog Lights?
Fog lights are designed for special situations, not everyday use. They help in:
- Heavy fog
- Rainy weather
- Snowstorms
- Dusty conditions
Fog lights cut through mist near the road surface. This improves visibility for you and makes your Jeep easier for other drivers to see.
Comparison: Fog Lights Vs Headlights
To understand why fog lights matter, compare them with regular headlights.
| Feature | Fog Lights | Headlights |
|---|---|---|
| Beam Angle | Wide and low | Narrow and high |
| Best Use | Fog, rain, snow | General driving |
| Glare | Low | High (can reflect in fog) |
Common Mistakes With Fog Lights
Many Jeep owners accidentally misuse fog lights. Here are mistakes to avoid:
- Using fog lights when it’s clear—this can annoy other drivers.
- Trying to turn on fog lights with high beams.
- Forgetting to turn off fog lights after leaving foggy areas.
Troubleshooting: Fog Lights Not Working
If your fog lights do not turn on, try these checks:
- Check the fuse. The fog light fuse may be blown.
- Inspect the bulb. Fog light bulbs can burn out; replace if needed.
- Test the switch. The knob may be faulty.
- Check wiring. Loose or damaged wires can cause problems.
If you still have trouble, see your Jeep dealer or a trusted mechanic.
Data Table: Fog Light Bulb Specifications
Choosing the right bulb is important if you need a replacement.
| Bulb Type | Wattage | Estimated Lifespan | Price Range |
|---|---|---|---|
| H11 | 55W | 500 hours | $15-$25 |
| LED (aftermarket) | 15W | 30,000 hours | $40-$80 |
Tips For Using Fog Lights Safely
- Use fog lights only in poor visibility.
- Turn them off when visibility improves.
- Keep the lenses clean for best performance.
- Replace bulbs with the correct type.
Many drivers do not realize that fog lights can reduce glare reflected from fog, making your drive safer. Also, fog lights use less power than headlights, which can help your battery during long drives in bad weather.
Jeep Grand Cherokee Fog Light Features
The 2018 model offers advanced features:
- Automatic headlights: Some trims switch lights on/off based on conditions.
- LED fog lights: Available on higher trims, these are brighter and last longer.
- Integrated controls: One knob manages both headlights and fog lights.
Not all trims have fog lights as standard. If your Jeep does not have fog lights, check with your dealer about installing them.
Comparison Table: Fog Light Availability On 2018 Grand Cherokee Trims
| Trim Level | Fog Lights Standard? | Headlight Type |
|---|---|---|
| Laredo | No | Halogen |
| Limited | Yes | Halogen/LED |
| Overland | Yes | Bi-Xenon |
| Summit | Yes | Bi-Xenon |
Frequently Asked Questions
How Do I Know If My Jeep Has Fog Lights?
Check the front bumper for small lamps below the headlights. Also, inspect the dashboard knob for a fog light symbol.
Can I Use Fog Lights With High Beams?
No, fog lights only work with low beam headlights. High beams disable fog lights.
Are Led Fog Lights Better Than Halogen?
Yes, LED fog lights are brighter and last longer. They also use less energy. Some trims offer LED fog lights as standard.
How Often Should I Replace Fog Light Bulbs?
Replace bulbs when they burn out or get dim. Halogen bulbs last about 500 hours; LED bulbs last much longer.
Where Can I Find Official Instructions?
You can find instructions in your Jeep owner’s manual or visit the official Jeep website: Jeep Owners.
Driving your 2018 Jeep Grand Cherokee with fog lights used properly can make a big difference in safety during poor weather. By following these steps and tips, you will be ready for any foggy situation.
Always check your lights before driving and keep them in good condition.
If you have more questions, consult your manual or talk to your dealer.
