Why Add LED Lighting to Your Side Skirts

Adding LED lighting to your vehicle’s side skirts does more than create a custom look. It provides functional benefits that improve safety and comfort during nighttime driving. Side skirts sit low on the vehicle, making them an ideal location for auxiliary lighting that increases your car’s visibility to other drivers, pedestrians, and cyclists. When properly installed, side skirt LEDs act as marker lights, helping define the width and length of your vehicle in low-light conditions. This can reduce the risk of side-swipe incidents and make parking or maneuvering in dark areas much easier.

Beyond safety, LED side skirt lighting adds a personal style statement. Whether you prefer a subtle glow or a bold color-changing effect, the right setup can make your car stand out at car meets or simply while driving through town. Because LEDs are energy-efficient and long-lasting, you can run them for hours without draining your battery. This article walks through a complete, professional-grade installation process—from selecting materials to final testing—so you end up with a reliable, road-legal system that looks great and works perfectly.

Planning Your LED Side Skirt Installation

A successful installation starts with planning. Before buying any parts, decide on the type of lighting you want and how you will control it. Consider these factors:

  • LED strip type – waterproof (IP67 or higher) is essential because side skirts are exposed to road spray, rain, and car washes. Use flexible silicone-coated strips for durability.
  • Light output – for visibility, choose strips with at least 30 LEDs per meter. Do not use super-bright strips that may blind other drivers; stick to marker-light brightness levels.
  • Color – in most regions, white or amber are the only legal colors for forward-facing or side marker lights. Check local laws before buying colored strips. Some owners install RGB strips for show use but switch to white for driving.
  • Control method – a simple toggle switch works for basic on/off. A wireless remote or Bluetooth app controller allows color changes and brightness adjustments. A wired switch is most reliable and easiest to integrate.
  • Power source – connect to a 12V circuit that is switched with the ignition or a dedicated circuit with an inline fuse. Avoid tapping into sensitive electronics.

Make a diagram of the wiring path from the battery or fuse box to both side skirts. Plan for grommets where wires pass through the firewall or body panels. Having a clear plan saves time and prevents mistakes.

Tools and Materials You Will Need

Gather the following items before starting. Using quality materials reduces the chance of failure and makes the installation easier.

LED strips

  • Two lengths of waterproof LED strip (one per side), cut to the exact length of your side skirts plus a few extra inches for wiring connections at the ends.
  • Optional: RGB or addressable strips if you want color effects.

Power and wiring components

  • 12V power supply (the vehicle’s battery or accessory circuit is fine; you may need a relay if the LED load exceeds the switch rating).
  • In-line fuse holder with 5-amp or appropriate fuse.
  • Marine-grade or automotive wire (18–20 AWG).
  • Soldering iron and heat shrink tubing, or waterproof posi-tap connectors for splices.
  • Wire strippers, crimping tool, and a multimeter.
  • Switch (toggle, rocker, or push-button).

Mounting hardware

  • 3M VHB double-sided adhesive tape (extra-strong outdoor grade).
  • Small self-tapping screws or zip ties for extra security on the wiring.
  • Silicone sealant to waterproof any exposed connections.

General tools

  • Screwdrivers (Phillips and flat-head), socket set, drill with small bits, an interior trim removal tool.
  • Isopropyl alcohol and lint-free cloths for surface prep.
  • Zip ties and adhesive cable clips to secure wires.

Step-by-Step Installation Process

Follow these detailed steps to install LED lighting on your side skirts. The process is divided into preparation, wiring, mounting, and testing.

Step 1: Prepare the Vehicle and Side Skirts

Park on a level surface and disconnect the negative battery terminal to prevent shorts. Clean the side skirts thoroughly: use a degreaser or isopropyl alcohol to remove wax, grease, and dirt. If your side skirts are painted, you may need to lightly sand the area where the tape will stick (only if the finish is glossy and you cannot get a bond). Wipe dry, and avoid touching the clean surface with bare fingers afterward.

Measure the total length of each side skirt. If the skirt has contours or curves, the LED strip must be flexible enough to follow them. Test-fit a dry piece of strip without removing the adhesive backing to see where it sits best. Typically, the strip is placed just above the lowest edge of the skirt, or along a pronounced lip. Mark the desired location with painter’s tape.

Step 2: Cut and Pre-Wire the LED Strips

Cut the LED strips at the marked cut points (every few inches, usually at the copper pad). If you need to connect two strips to reach the full length, solder the pads together and cover with heat shrink. For the ends of the strip, solder on 6–8 inches of wire (positive and negative) that will later connect to the main harness. Alternatively, use quick-connect clip-on connectors designed for LED strips, but soldering is more reliable.

Test each strip by momentarily touching it to a 12V source (e.g., a spare battery) to confirm all LEDs light up. Pay attention to polarity: reversing the connection will not damage the strip, but it will not light.

Step 3: Route the Wiring from the Cabin to Each Side Skirt

Decide on the control switch location (e.g., a blank panel on the dashboard or center console). Drill a hole for the switch if needed, or use a pre-existing knockout. Run a power wire from the fuse box (using an add-a-circuit adapter) or directly from the battery with an inline fuse as close to the battery as possible (within 6 inches). Use a relay if you plan to run many LEDs or use a high-current controller.

Route the positive wire through the firewall grommet—use a fish tape or coat hanger. Inside the car, connect the wire to the switch. From the switch, run a wire to the left and right side kick panels. Then feed the wire through the door sill or under the carpet to the front of the doors. You may need to remove the lower door sill trim to hide the wire. Continue the wire to each side skirt area. The exact path depends on your vehicle; a common method is to run the wire along the rocker panel channel and exit through a small hole near the front or rear of the skirt. Always use grommets or rubber edging where wires pass through metal to prevent chafing.

Ground each side separately: attach a ground wire to a clean metal chassis point near each side skirt (e.g., an existing bolt). Remove paint or rust so the ground is solid.

Step 4: Mount the LED Strips to the Side Skirts

Once the wiring is routed, it is time to permanently attach the strips. Apply the 3M VHB tape to the back of the LED strip (if not pre-applied). Starting from one end, press the strip firmly onto the cleaned surface of the side skirt, following the contour. Avoid stretching the strip, as that can damage the copper traces. Use a roller or your thumb to apply even pressure along the entire length. For curved areas, cut a small relief slit in the strip’s silicone coating to allow it to bend more easily (being careful not to cut the circuit).

For extra security, add small dabs of silicone adhesive at each end and every 6–8 inches. Do not rely solely on the tape if you drive on rough roads or in extreme temperatures.

Step 5: Connect the Wiring and Install the Switch

Connect the positive and negative wires from each side skirt to the main harness. Use solder and heat shrink, or waterproof butt connectors. Ensure all connections are insulated and protected from moisture. Route the final positive wire to the switch, and the switch’s other terminal to the fused power source. Connect the negative wires to the chassis ground.

Insert the fuse (start with the lowest rating that supports your LED load, usually 5A). Reconnect the battery negative terminal. Test the switch: the lights should turn on and off. If using a remote controller, pair it per the manufacturer’s instructions. Check that both sides illuminate evenly.

Step 6: Finalize and Tidy Up

Use zip ties or adhesive clips to secure all loose wires along the chassis, away from moving parts and heat sources. Tuck excess wire into the door sill or engine bay. Reinstall any interior trim panels, door sills, and underbody panels that were removed. Apply silicone sealant to any wire entry points through metal panels to prevent rust.

Do a final walk-around test: turn the lights on in a dark area and inspect all around the car. Ensure no bare wire is exposed and no LED is partially detached. Also test with the engine running to confirm the lights do not flicker due to alternator noise (if they do, you may need a noise filter).

Before driving with your new lights, understand the laws in your area. Many jurisdictions permit white or amber lights on the sides of a vehicle as long as they are not flashing and do not exceed a certain brightness. Red lights are typically restricted to the rear. Blue or green lights may be illegal for non-emergency vehicles. Some states also restrict “under-glow” if it is visible from above or behind. To avoid a ticket, use white or amber LEDs for driving, and save colorful effects for parked shows. For more detailed regulations, consult your local vehicle code authority or a reputable LED lighting law guide.

Safety tips:

  • Never route wiring near hot exhaust components, fuel lines, or brake lines.
  • Always fuse the power wire as close to the battery as possible.
  • Use a weatherproof switch if mounted outside or in an open area.
  • Do not operate high-powered LEDs while the engine is off for long periods to avoid draining the battery.

Enhancing the Installation with Additional Features

Once the basic system is in, you can add upgrades for more convenience and style:

  • Fade-in/fade-out – use a PWM controller so the lights ramp up smoothly instead of startlingly bright.
  • Wireless remote – for under $20, a small remote lets you change colors or turn the lights on/off from inside the car or while taking photos.
  • Phone-controlled RGBW – addressable strips with Bluetooth app control give you full customization of color, pattern, and brightness.
  • Auto-on with door unlock – connect the positive wire to the interior dome-light circuit so the side skirts illuminate when you unlock the car, adding a welcome-light effect.
  • Sound-reactive mode – some controllers include a microphone that changes the light pattern with music, ideal for car shows.

Maintenance and Troubleshooting

LED strips are durable but can fail if water enters the connections or if moisture gets inside a cut end. Inspect the lights every few months, especially after winter or heavy rain. Look for dim sections, flickering, or a completely dark segment. Common fixes:

  • Section not lighting – check the solder joint at the cut point; water may have corroded the copper pad. Re-solder and seal with silicone.
  • Flickering – usually a loose connection in the main harness or a failing ground. Clean the ground point and tighten all connectors.
  • One side not working – test voltage at the strip end with a multimeter. If power is present but strip is dark, the strip itself is likely damaged; replace it.
  • Switch feels hot – the switch may be under-rated for your LED load. Upgrade to a higher-amperage switch or add a relay.

Keep the strips clean by wiping them gently with a damp cloth during car washes. Avoid high-pressure water jets directed at the strip edges, as that can force water inside.

Alternatives to DIY: Pre-Made Side Skirt LED Kits

If you are not comfortable soldering or routing wires, several aftermarket companies sell complete side skirt LED kits. These often come with pre-wired strips, controllers, and plug-and-play harnesses. They may be more expensive but save time and reduce the risk of electrical issues. Some popular options are available from Opt7 and ORACLE Lighting. Always read reviews to confirm fitment for your specific vehicle make and model.

Final Thoughts

Installing LED lighting on your side skirts is a rewarding upgrade that improves nighttime safety and gives your car a distinctive appearance. By planning the wiring carefully, using quality waterproof components, and following each step with attention to detail, you will end up with a system that works reliably for years. Whether you choose a simple white glow or a full RGB setup, the key is secure mounting and waterproofed connections. With the instructions in this guide, you have the knowledge to complete the job like a professional. Turn on those lights and enjoy a brighter, safer drive every night.