If you drive a 2018 Jeep Wrangler, you may notice the daytime running lights (DRLs) turn on whenever the engine starts. These lights help other drivers see your vehicle during the day, but not everyone wants them active. Some drivers prefer to turn off DRLs for off-road adventures, battery savings, or personal style. However, switching off DRLs isn’t always simple. The Wrangler’s lights are controlled by software, wiring, and sometimes legal rules. This guide explains practical ways to turn off DRLs, offers safety tips, and answers common questions.
Why Turn Off Daytime Running Lights?
Many drivers want to turn off DRLs for good reasons. You might want more control over your lighting for off-roading. Some prefer a stealthier look, especially when driving in nature. Turning off DRLs can also help reduce battery drain during long stops. A few owners dislike the constant glow from DRLs, especially if custom headlights are installed. But remember, some states require DRLs by law, so check local rules before making changes.
Methods To Turn Off Daytime Running Lights
There are several ways to disable DRLs on a 2018 Jeep Wrangler. Each method has pros and cons. Some are simple and reversible, while others need advanced tools or expert help.
1. Using The Instrument Cluster
The instrument cluster is the screen behind your steering wheel. On some Wranglers, you can adjust DRL settings here:
- Turn the ignition to “On” without starting the engine.
- Use the steering wheel buttons to find “Settings.”
- Select “Lights” or “Exterior Lights.”
- Look for “Daytime Running Lights” and toggle them off.
This option works only if your Wrangler has this feature. Many US models do not, but Canadian or export models sometimes do.
2. Through Dealer Programming
Dealerships have special computers to change your Wrangler’s settings. Ask your dealer if they can disable DRLs:
- Call or visit your Jeep dealer.
- Request DRL deactivation through the Body Control Module (BCM).
- Dealers may charge a fee (usually $40–$100).
- Not all dealers will perform this change due to regulations.
This method is reliable and safe. If your dealer refuses, try another method below.
3. Using Obd-ii Programming Tools
OBD-II tools plug into your Wrangler’s diagnostic port. Some advanced tools like AlfaOBD or JScan apps let you change DRL settings:
- Buy a compatible OBD-II adapter (around $30–$50).
- Download AlfaOBD or JScan app (about $20–$40).
- Plug the adapter into the port under the dash.
- Use the app to access the Body Control Module.
- Find the DRL setting and switch it off.
This method offers more control but needs technical know-how. Always read instructions carefully.
4. Disconnecting The Drl Fuse
The DRL fuse powers the daytime lights. Removing it can turn off DRLs:
- Open the Wrangler’s hood.
- Find the fuse box (usually near the battery).
- Check the manual for the DRL fuse location (often Fuse #23).
- Pull the fuse out carefully.
After removing the fuse, DRLs will stay off. Other lights may be affected, so test all functions.
5. Modifying Headlight Wiring
If other methods fail, you can change the headlight wiring:
- Locate the DRL wire (often white or yellow).
- Cut or disconnect the wire.
- Insulate the ends to prevent short circuits.
This is a permanent solution and may void warranties. Only try this if you are comfortable with electrical work.
Comparing Methods To Disable Drls
Here’s a quick overview of each method’s difficulty, cost, and reversibility:
| Method | Difficulty | Cost | Reversible |
|---|---|---|---|
| Instrument Cluster | Easy | $0 | Yes |
| Dealer Programming | Medium | $40–$100 | Yes |
| OBD-II Tools | Medium | $50–$90 | Yes |
| Fuse Removal | Easy | $0 | Yes |
| Wiring Modification | Hard | $0–$30 | No |
Safety And Legal Considerations
Disabling DRLs can impact your safety and legal compliance. In the US, DRLs are not required everywhere, but some states and countries do require them. Always check your local laws. Turning off DRLs can make your Wrangler less visible to other drivers, especially in fog or rain.
If you off-road often, you may want to disable DRLs for a stealthier approach. For daily road use, consider leaving them on for added safety.
Common Mistakes When Disabling Drls
Many owners make errors when trying to turn off DRLs:
- Removing the wrong fuse can disable other lights.
- Using OBD-II tools without proper instructions can cause software problems.
- Cutting wires without insulation can lead to shorts.
- Not checking state laws can result in fines.
Always double-check your work and consult the manual before making changes.
Data: Drl Impact On Battery Life And Visibility
Studies show DRLs use about 10–20 watts per headlight, a small amount compared to other vehicle functions. They improve visibility by up to 25% during daytime, lowering accident rates. Battery drain is minimal unless lights stay on during long stops. If you drive off-road or park for hours, switching off DRLs can save power.
| Feature | DRL On | DRL Off |
|---|---|---|
| Visibility (Day) | High | Medium |
| Battery Drain | Low | None |
| Legal Compliance | Depends | Depends |
Example: Off-road Vs. Urban Use
Many Wrangler owners switch off DRLs for off-road trips. For example, in the Mojave Desert, turning off DRLs makes your vehicle less visible to wildlife and other off-roaders. In cities like Los Angeles, DRLs help prevent accidents in busy traffic.
Decide based on your driving needs.
| Location | DRL Recommendation |
|---|---|
| Off-Road (Desert, Forest) | Off |
| Urban (City Streets) | On |
| Suburban | Optional |
Frequently Asked Questions
How Do I Know If My 2018 Jeep Wrangler Has Drls?
Most US Wranglers have DRLs by default. Check your owner’s manual or look for a DRL symbol on your dashboard.
Will Disabling Drls Void My Warranty?
Disabling DRLs through software or fuse removal usually does not void warranties. Cutting wires may affect coverage. Ask your dealer for details.
Can I Turn Drls Back On After Disabling Them?
Yes, most methods are reversible. If you used the cluster, dealer, or OBD-II tool, just switch DRLs back on. Fuse removal is also reversible.
Are Drls Required By Law In The United States?
Some states require DRLs, but most do not. Check your local DMV or NHTSA for legal details.
Will Turning Off Drls Affect Other Lights?
If you remove the correct fuse or change software settings, other lights should work normally. Cutting wires can affect multiple functions, so check carefully.
Turning off daytime running lights on your 2018 Jeep Wrangler gives you more control over your vehicle. Choose the best method for your needs and always check laws before making changes. With the right approach, you can enjoy your Wrangler exactly how you like.
