How to Install Undercar LED Lighting

Undercar lighting can make any car look cool. It adds a futuristic feel to your vehicle, making it look like something out of a sci-fi movie. Undercar LED comes in all kinds of different colors and installation is something you can do on your own. While it may seem difficult, the overall concept is simple and, with a little patience and effort, it is a welcome addition to your car.

Part 1 of 1: Install the LED lighting

Materials Needed

attaching LEDs with zip ties

Step 1: Attach the LEDs to the vehicle. Set the LED strip under your vehicle.

Look for a means of attaching it, such as bolts or brackets, and temporarily mount the strip using LED tape. Use zip ties to permanently secure the LED strip to your vehicle. The zip ties should generally be placed every foot or so under the vehicle.

mounting the module in the engine bay

Step 2: Route the wires into the engine bay. Route the wires under the vehicle and into the engine bay.

Step 3: Connect the wires to the module. Place the module in the engine bay and connect the wires to it.

wiring schematic from battery to module box

Step 4: Connect the module wires to power. Connect the module power wire to the battery positive terminal using the kit supplied hardware.

Step 5: Connect the module wires to ground. Connect the ground wires to chassis ground.

Make sure the ground contact point is clean and free of rust and/or paint.

mounting the module box

Step 6: Mount the module box. Permanently mount the module box somewhere in the engine bay that is cool, dry and clean.

Extend the antenna on the module so it will get reception even with the hood closed.

mounting the switch

Step 7: Mount the switch. If your kit does not use a wireless module you will have to use a switch to control it.

Start by drilling a hole and mounting the switch. Choose a location that is easily within reach.

running wires through passenger compartment

Step 8: Run the LED wires into the passenger compartment. Run LED wiring from the engine compartment into the vehicle interior.

To do this you will have to pass through the firewall. The easiest way to do this is to find a grommet already in the firewall and puncture a hole in it to run the wires.

Step 9: Connect the switch to power. This can be done using a fuse tap.

Step 10: Connect the LED kit wiring to ground. Connect LED kit wiring to chassis ground. Make sure the ground contact point is clean and free of rust and/or paint.

undercar lighting illuminated

Step 11: Test the system to make sure it works. The lights should illuminate and be easily visible.

Nothing transforms a vehicle more than underglow. Now your car will attract attention everywhere you go, and when people ask where you had the work done, you can say you did it yourself. If your battery begins to act unusually or the light comes on, have one of YourMechanic’s professionals take a look.


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Theodore

16 years of experience
1587 reviews
Theodore
16 years of experience
Honda CR-V L4-2.4L - Battery Light is on - Lynnwood, Washington
He did a good job diagnosing the problem and was very clear with the price. Very happy that the car got fixed after he is done. Would recommend to anyone who need to have their car fix.
Mazda Tribute - Battery Light is on - Lynnwood, Washington
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Travis

13 years of experience
579 reviews
Travis
13 years of experience
Dodge Grand Caravan V6-3.6L - Battery Light is on - Minneapolis, Minnesota
I was very happy to see my service was scheduled with Travis again. I used his services in the past and knew I could trust his work. Efficient, thorough, friendly, professional. 10 out of 10, definitely recommend.
Saturn Vue - Battery Light is on - Saint Paul, Minnesota
Travis was knowledgable, professional, very helpful. He diagnosed them problem accurately, gave me information about my engine that was very helpful. I will use this service in the future, and recommend to others.

Ibrahim

7 years of experience
16 reviews
Ibrahim
7 years of experience
Jeep Compass L4-2.4L - Battery Light is on - Marietta, Georgia
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4 years of experience
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Ryan
4 years of experience
Ford Fusion L4-2.3L - Battery Light is on - Brooklyn, New York
Ryan took the time to explain what he was doing, everything step by step,,he was very professional, he is a great mechanic and I would recommend him to anyone.

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