Installing underglow lights on a Jeep can turn any ordinary ride into a true head-turner. Whether you want to light up the trails at night or add a custom look for car meets, underglow lights are a popular upgrade for Jeep owners.
But while the end result is impressive, the process needs some planning, tools, and attention to detail. In this guide, you’ll discover practical steps, expert tips, and important safety advice on how to install underglow lights on your Jeep—plus insights many beginners overlook.
Why Install Underglow Lights On Your Jeep?
Underglow lights do more than just make your Jeep look cool. They offer practical benefits for both off-road adventures and city driving. For example, underbody lights can help illuminate obstacles under your vehicle when you’re on rocky trails. They also make your Jeep more visible in low-light conditions, increasing safety.
Many Jeep owners use underglow to:
- Enhance the appearance of their Jeep
- Show off at car meets or events
- Improve visibility when off-roading at night
- Create a custom look with color-changing LEDs
It’s not just about style. When installed correctly, underglow lights can be a useful tool for both fun and function.
Legal Considerations For Underglow Lights
Before you buy or install any underglow kit, check the local laws in your area. Laws about underglow lights can vary from state to state and even city to city.
Some areas allow only certain colors, while others ban underglow on public roads completely. Common restrictions include:
- No red or blue lights (to avoid confusion with emergency vehicles)
- No flashing or strobe effects
- Underglow must not be visible from the front or rear of the vehicle
Always check the Department of Motor Vehicles (DMV) website for your state or consult local authorities. Installing illegal lights can lead to fines or your Jeep being impounded.
Choosing The Right Underglow Light Kit
Picking the best underglow kit for your Jeep is more than just choosing your favorite color. The right kit depends on your needs, your Jeep model, and your budget.
Types Of Underglow Lights
You’ll find two main types on the market:
- LED strip kits: Flexible, low-profile, and energy-efficient. Most popular for Jeeps.
- Neon tube kits: Brighter but more fragile and less common today.
LEDs are the top choice for most Jeep owners because they are durable, water-resistant, and offer advanced features like color-changing modes.
Key Features To Compare
Here’s a comparison of popular underglow kit features:
| Feature | Basic LED Kit | Advanced LED Kit | Neon Tube Kit |
|---|---|---|---|
| Brightness | Moderate | High | Very High |
| Color Options | Single/Multicolor | Millions (RGB) | Limited |
| Durability | Good | Excellent | Poor |
| Control Method | Manual Switch | Remote/App | Manual Switch |
| Water Resistance | Yes | Yes | No |
What To Look For
- Waterproof rating: Aim for IP67 or higher for off-road use.
- Length and flexibility: Make sure the strips fit your Jeep’s undercarriage.
- Control options: Some kits use remotes, others pair with your smartphone.
- Warranty: Quality brands offer at least a 1-year warranty.
- Power draw: LEDs are more efficient, so they won’t drain your battery as quickly.
Many beginners forget to check the kit’s compatibility with their Jeep’s power system or ignore the importance of water resistance—a must for off-roaders.
Tools And Materials You’ll Need
Before you start, gather all the tools and materials. Having everything ready saves time and prevents mistakes.
Essential Tools
- Underglow light kit (with all included hardware)
- Wire stripper/crimper
- Screwdrivers (flat and Phillips)
- Drill and bits (if mounting requires holes)
- Pliers
- Electrical tape
- Zip ties
- Multimeter (to test voltage and connections)
- Safety glasses and gloves
Optional but helpful:
- Heat shrink tubing (for waterproof connections)
- Soldering iron (for permanent, strong wiring)
- Jack stands or ramps (for easier access under the Jeep)
Materials Checklist
- Wiring harness (usually included with the kit)
- Fuse tap or add-a-circuit (for connecting to fuse box)
- Extra wire (sometimes the kit wire is too short)
- Cleaning supplies (for prepping mounting surfaces)
Don’t forget to check the kit for missing or damaged parts before starting. It’s frustrating to discover you’re missing a bracket or wire halfway through the install.
Preparing Your Jeep For Installation
Proper preparation makes the actual installation smoother and safer. Here’s how to get your Jeep ready:
- Park on a flat surface and engage the parking brake.
- Disconnect the battery by removing the negative terminal. This prevents electrical shorts and shocks.
- Lift the Jeep using ramps or jack stands for better access. Never rely on the car jack alone for safety.
- Clean the mounting areas under the Jeep. Use soap and water to remove dirt and oil so the adhesive and mounts will stick.
Tip: Check for any existing damage or rust under your Jeep. Fixing these spots before installing lights helps prevent problems later.
Step-by-step Guide: Installing Underglow Lights On A Jeep
This is where the real work begins. Follow these steps for a safe and effective installation.
Step 1: Plan Your Layout
Before attaching anything, decide where you want to mount each light strip. Common positions include:
- Along each side under the doors (rocker panels)
- Under the front and rear bumpers
Lay out the strips on the ground next to your Jeep and check if the included wires reach the planned power source. Adjust your plan if necessary.
Pro insight: Avoid placing strips directly next to hot exhaust pipes or moving parts.
Step 2: Test The Lights
Connect the lights temporarily to your Jeep’s battery and turn them on. This checks that everything works before you begin mounting.
Non-obvious tip: Test all color modes and brightness levels. Sometimes a single color or function is faulty right out of the box.
Step 3: Mount The Led Strips
Most kits use either adhesive backing, mounting brackets, or small screws. For best results:
- Clean the surface again with rubbing alcohol.
- Attach the adhesive strips (if included) firmly to the cleaned surface.
- Secure with brackets or screws for extra support, especially if you off-road often.
- Use zip ties to keep wires neat and away from moving parts.
Beginner mistake: Relying only on adhesive for off-road Jeeps. Vibration and mud can loosen the glue over time.
Step 4: Route The Wires
Run the wires along the frame toward your chosen power source. Keep these points in mind:
- Avoid hot or sharp surfaces that could melt or cut the wire.
- Follow factory wiring paths when possible for neatness and safety.
- Secure wires with zip ties every 6-8 inches.
Look for existing grommets (rubber plugs) in the floor or firewall to pass wires into the cabin. If you must drill, seal the hole with silicone to prevent water leaks.
Step 5: Connect The Power
Most Jeep owners tap into one of these power sources:
- Fuse box: Use a fuse tap to connect safely.
- Battery: Wire directly, but always add an inline fuse near the battery.
- Accessory power: Some kits plug into the cigarette lighter socket.
Here’s a quick comparison of power connection options:
| Power Source | Difficulty | Pros | Cons |
|---|---|---|---|
| Fuse Box | Medium | Turns off with ignition Safe with fuse tap |
May require extra wire |
| Direct to Battery | Easy | Always available power | Can drain battery if left on |
| Cigarette Lighter | Very Easy | No wire cutting | Less secure, limited power |
Important: Always use the correct fuse size as recommended in the kit instructions. This protects your Jeep from electrical fires.
Step 6: Make The Ground Connection
Every electrical circuit needs a ground. Find a solid metal part of your Jeep’s frame, clean it down to bare metal, and attach the ground wire firmly.
Step 7: Test The System
Reconnect the battery and turn on your lights. Check:
- All strips light up
- All colors/modes work
- No flickering or dim sections
If you have issues, double-check your connections and fuses. It’s easier to fix problems now than when everything is put back together.
Step 8: Tidy Up And Final Mounting
Once you know everything works:
- Secure all wires out of the way
- Add extra zip ties if needed
- Seal any drilled holes with silicone
- Reinstall any interior panels or covers you removed
Expert tip: Take your Jeep through a car wash or hose down the undercarriage to test water resistance before hitting the trails.
Safety Tips For Installing Underglow Lights
Working under your Jeep with electrical wiring brings some risks. Use these safety tips:
- Always disconnect the battery before wiring.
- Use jack stands or ramps, not just a car jack.
- Wear safety glasses to protect from debris.
- Avoid pinching or crushing wires under body panels.
- Double-check all connections before reconnecting the battery.
Hidden hazard: Some Jeeps have sensitive computer systems. Tapping the wrong wire can cause warning lights or electrical problems. If you’re unsure, consult a professional installer.
Common Mistakes And How To Avoid Them
Many first-time installers make avoidable errors. Here are some to watch out for:
- Not sealing electrical connections: Moisture causes corrosion and shorts. Use heat shrink tubing or waterproof connectors.
- Mounting strips too close to moving parts: This can rip off the lights or cut wires.
- Leaving wires hanging: Loose wires can catch on rocks or debris.
- Ignoring the fuse: Never skip the fuse—one short can damage your Jeep’s wiring.
- Choosing the wrong kit: Not all kits fit all Jeeps. Check length, voltage, and mounting style before buying.
Extra advice: Take photos at each step. This helps you remember wire routing and makes troubleshooting easier.
Credit: ledmircy.com
Customizing And Controlling Your Underglow
Today’s LED underglow kits offer many ways to personalize your Jeep. Depending on your kit, you may have:
- Remote control for color and mode changes
- Smartphone app for advanced features, like syncing to music
- Voice activation (in high-end kits)
Popular lighting modes include:
- Single solid color
- Color cycling
- Strobe or flash (check legality)
- Sound-activated patterns
Some kits even let you program custom patterns or connect with other interior or wheel well lights for a synchronized effect.
Pro tip: If you off-road at night, choose a white or amber color. These offer the best visibility and are less likely to attract unwanted attention from law enforcement.
Maintenance And Care For Underglow Lights
Once your underglow is installed, a little maintenance keeps it looking and working great.
- Check for loose wires after every off-road trip.
- Inspect for damage to the strips or mounting brackets.
- Clean the strips with a damp cloth—avoid harsh chemicals.
- Test all colors and modes regularly to catch problems early.
If you notice flickering or dead sections, it’s often a sign of a loose connection or water damage. Fix these issues quickly to avoid more expensive repairs.
Non-obvious insight: In cold climates, road salt can damage LED strips. Rinse the undercarriage regularly in winter.
Credit: rgbhalokits.com
Cost Breakdown: What To Expect
Installing underglow on a Jeep isn’t just about the kit price. Here’s a realistic cost estimate:
- LED underglow kit: $50–$250 (depending on features and quality)
- Installation supplies: $20–$50 (wire, connectors, zip ties)
- Professional installation: $100–$300 (if you prefer not to DIY)
So, a full DIY install usually costs $70–$300. Professional installs range from $200–$600, but you save time and avoid mistakes.
If you want to compare DIY vs. professional installation, consider the following:
| Aspect | DIY Installation | Professional Installation |
|---|---|---|
| Cost | Lower | Higher |
| Time Required | 2-5 hours | 1-2 hours |
| Skill Needed | Basic electrical & mechanical | None |
| Customization | As you like | Depends on shop |
| Error Risk | Higher for beginners | Low |
Real-world Example: Installing Underglow On A Jeep Wrangler
Let’s walk through a quick example. Jamie owns a 2017 Jeep Wrangler and wants multi-color underglow for trail riding.
- Jamie chooses a waterproof LED kit with app control ($120).
- She spends $35 on extra wire and connectors.
- Using jack stands, she follows the steps above and spends about 4 hours on installation.
- Jamie places lights under both rocker panels and bumpers, securing everything with brackets and zip ties.
After reconnecting the battery, she tests every function. Everything works. Jamie’s Jeep is now more visible on the trails, and she can switch between white (for function) and green (for fun) with her phone.
Lesson: Planning and patience lead to great results, even for first-timers.
Advanced Tips For Jeep Owners
If you want to go beyond the basics, consider these advanced ideas:
- Sync underglow with interior or grill lights for a full custom look.
- Install a dedicated switch on your dash for quick control.
- Add wheel well lights for 360-degree illumination.
- Wire to the dome light circuit so underglow turns on when you unlock the Jeep.
Pro insight: If you do a lot of water crossings, seal every connection with marine-grade silicone and use only waterproof components.
Resources For Jeep Enthusiasts
There’s a huge community of Jeep owners sharing advice and install photos. Popular forums like Wrangler Forum offer step-by-step guides, reviews, and troubleshooting tips.
You can also find detailed install videos on YouTube—watch a few before starting, especially if you’re a visual learner.
Credit: stingerdrive.com
Final Thoughts
Adding underglow lights to your Jeep is a fun way to express your style and boost safety. With careful planning, the right tools, and attention to detail, you can install a durable, reliable system that stands out both on the street and on the trail.
Remember to check local laws, choose the right kit for your needs, and take your time with installation.
Most importantly, enjoy the process and take pride in your custom Jeep. Your underglow isn’t just about looks—it’s a sign of your passion for adventure and individuality.
Frequently Asked Questions
How Long Does It Take To Install Underglow Lights On A Jeep?
The time depends on your skill level and the kit you choose. For most DIYers, installation takes 2 to 5 hours. If you have experience with wiring and vehicle modifications, you may finish faster. Complex kits with advanced features can take longer.
Are Underglow Lights Legal On All Roads?
No, laws about underglow lights vary by state and city. Some allow certain colors and modes, others ban underglow on public roads completely. Always check local laws before installing and using underglow lights to avoid fines.
Can Underglow Lights Drain My Jeep’s Battery?
If wired directly to the battery and left on while the Jeep is off, underglow lights can drain the battery. The risk is low with efficient LED kits, but it’s best to connect the lights to a switched power source or use a relay to avoid battery drain.
What’s The Difference Between Led And Neon Underglow Kits?
LED kits are more common today—they’re flexible, use less power, and are more durable (especially off-road). Neon tubes are brighter but fragile and less water-resistant. Most Jeep owners choose LED kits for their ruggedness and advanced control options.
Is Professional Installation Worth It?
Professional installation is a good choice if you’re not comfortable with wiring or want a warranty on the work. It costs more, but you save time and avoid mistakes. However, many Jeep owners enjoy the DIY process and the ability to customize their setup.
By following this guide, you’ll be well on your way to installing underglow lights on your Jeep safely and with confidence.