Have all of the information needed to install your White LED Grille Accent Lights for 2018-2019 GMC Sierra Denali 2500 & 3500 trucks? Our handy Install Guides walk you through the entire setup step-by-step.

<img src="https://attachments.gorgias.help/lrg3N7Ay8Rn7DnR8/hc/bgJ1Q6Q8lYxvXKOM/2025082912-8f7fbfce-a5ab-4115-83e3-3ce10c9b798a-6b1afc8c-ae1a-4766-9a63-1de2839ca3ec.jpeg" style="width: 300px;" class="fr-fic fr-dib">Have all of the information needed to install your White LED Grille Accent Lights for 2018-2019 GMC Sierra Denali 2500 &amp; 3500 trucks? Our handy Install Guides walk you through the entire setup step-by-step. As a reminder, Free Lifetime Tech Support comes standard with purchases so we&apos;re here to help if you have any questions along the way. Our friendly and knowledgeable Customer Support and Tech Support Teams are available by phone, email or chat and ready to assist!Product SKU: LU-FGL-1002(Click the link below to view our online Installation Instructions)<a class="pdf-download-btn" href="https://www.ledunderbody.com/content/Instructions/Font-Grille-Lighting-Kit-LU-FGL-1002.pdf" target="_blank" rel="noopener noreferrer">Grille LED Lights for 2018-2019 GMC Sierra Denali</a>

2018-2019 GMC Sierra Denali Grille Lights Installation Instructions

LEDGlow Support

LEDGlow Grill Lights transform virtually any car or truck with vibrant single or multi-color LED illumination. Choose between standalone grille LED lights or versions that connect to existing underglow lights to display the same patterns.

Grille Lights

Product Instructions

How do you determine which 36” strip is the Left and which one is the Right?

Is the Slingshot Kit Waterproof?

Does this kit use the LEDGlow Automotive Control app or the LEDGlow Motorcycle Control app?

Does this kit have Music mode?

What size kit is used in the photos on your website?

Do you have Wheel Rings compatible with this kit?

Can I hook the kit up to my turn signals?

What size kit should I order?

How do I know if I will need a Relay to wire the Brake light feature?

Are you able to select what strips you want to turn red when the brakes are applied?

How does the Brake Light feature work?

How many LEDS can this kit have?

If I get the 30 piece kit will I be able to add on to it later?

Does the kit come with everything I need to install on my Slingshot?

How many lights do I need for my Slingshot?

Slingshot

My Bluetooth motorcycle kit is asking me for a pin when I try and connect to it, what is the pin?

My phone won't Re-Pair to the Smartphone controlled kit after sitting overnight

Is the Smartphone Interior kit compatible with my Smartphone Underbody Kit?

Which application should I download for the Smartphone Controlled Underbody Kit?

My phone will not pair to the Smartphone Controlled Underbody Box

What is the white wire on my Smartphone Controlled Underbody Box?

Does the Smartphone Underbody Kit have auto on?

Can I add Interior lights to my Smartphone Controlled Underbody Kit?

Can I add Wheel Wells or Wheel Rings to my Smartphone Controlled Underbody Kit?

Can I operate the Underbody, Wheel Well/Rings, and Interior separate on the Smartphone Controlled Underbody kit?

Can you control the Grille light separately on the Smartphone Underbody kit?

I currently have the Million Color Wireless SMD, can I upgrade to the Smartphone Control Box?

What is the display module?

Is the Display module required for music mode?

Does the Smartphone Controlled Underbody Kit have sound mode?

Do you offer a Single Color Underbody Smartphone kit?

Can I upgrade from the Verison 1 Smartphone Underbody Control Box to the new Version 2 Smartphone Control Box?

Which application should I download for the Smartphone Controlled Interior Kit?

My phone will not pair to the Smartphone Controlled Interior Box

What is the white wire on my Smartphone Controlled Interior Box?

Does the Smartphone Interior Kit have auto on?

Does the Smartphone Interior kit come with a wireless remote?

Can I upgrade my existing Interior Kit to a Smartphone Control Kit?

Which application should I download for the Smartphone Controlled Motorcycle Kit?

My phone will not pair to the Smartphone Controlled Motorcycle Box

What is the Blue wire on my Smartphone Controlled Motorcycle Box?

Can I upgrade my Advanced Million Color SMD kit to Smartphone Controlled?

Do the Smartphone Controlled kits come with a wireless remote?

What is the Bluetooth range with the Smartphone Kit?

Do my location services need to be on when using the Smartphone application?

Smartphone Questions and Troubleshooting

I would like to make a change to my order. How can I make changes?

What are Power Options?

Am I able to put a multi color kit on one color without it cycling to another?

Why would I need adhesive promoter?

Are there any kits currently available that will run off of 24v?

How do I control the remote for my kit?

I cannot find the color lights I would like in the Single Color Kits.

How does the music sensor work?

Which Kits have sound activation mode?

What Color LEDs would look good on my vehicle?

Where can I find the installation instructions for my kit?

What size wire should I use to extend the wires on the control box, to connect to a 12V power source?

Do the light kits come with everything I need to install them?

I cannot find the replacement part I need.

Can I control any of the kits with my smartphone?

Are all tubes or strips waterproof?

Can I install my LEDGlow kit myself?

Which expandable circuit do I need for my vehicle?

Which kits are compatible with my specific vehicle or motorcycle?

Are these light kits legal in my state?

General Installation & Other Questions

Do you offer wholesale accounts?

Can I ship to an address that is different than my billing address?

Will my order require a signature upon delivery?

How do I know if my order is coming FedEx or USPS?

Do all orders over $50 qualify for Free Shipping?

What is the return policy on your products?

What is the policy for a package that is refused?

What do I do if I receive the wrong product?

How can I cancel my order?

Can I make changes after I have placed my order?

What is the exchange policy?

What if I place a duplicate order?

How can I receive coupon codes?

Am I responsible for shipping when I need to set up a warranty claim?

What is the policy for a package that is undelivered as addressed?

What is your shipping policy for International orders?

What customs fees will I be responsible for with Standard Shipping?

How do I return my order and get a refund?

How long will it take to receive my refund?

What is the warranty policy on your products?

Will I be charged Sales Tax on my order?

Why did I have to pay customs and brokerage fees upon delivery?

I accidentally ordered the wrong product, what should I do?

Does LEDGlow offer sponsorships?

I purchased an out of stock item(s). What happens next?

I've received my tracking information but when I try to track my order, no information is available. What is the problem?

What payment options can I use when checking out?

How much will shipping cost?

How can I apply a discount to my order?

How long will it take my order to arrive?

When will my order ship?

Can I pick up my order from your location?

Customer Service & Order Questions

Do any of the underbody kits come with an auto on/ auto off feature?

What is the difference between a Truck Underbody Kit and the Car Underbody Kit?

I have a lifted truck, are the lights bright enough to show up?

I currently have just an interior kit, can I add on an Underbody?

Can I add on tubes to my current underbody kit?

What Underbody kit should I get?

What size are the replacement batteries for my Underbody Remote?

My Wireless Million/Single color underbody kit is not coming on but when I tap on the control box the lights flash. What is wrong with it?

How do I put my Bluetooth kit in sound activation mode?

Why do I have two connectors left over after installing my Slimline kit?

Underbody Kits

What interior kits have the auto illumination mode?

How does the auto illumination mode work?

What interior lighting kit would be best for my vehicle?

What is the difference between the Flexible LED Million Color Interior Lights kit and the Expandable Million Color Pro SMD LED Interior Lights kit?

How do I set my expandable 7 color interior kit to a solid color?

Interior Kits

How do I know which Wheel Ring size I need?

How bright are the LEDs on the Wheel Ring Lighting Kits?

How long does it take to install a Wheel Ring Kit?

Are the Wheel Ring Lighting Kits legal in my state?

Am I able to control the Wheel Ring Kit with my Smartphone?

What is the difference between the Million Color Wheel Ring Kit and the Million Color Wheel Well Kit?

Do the Wheel Well Kits come with everything I need for Installation?

How do I control the Million Color Wheel Ring Lights?

Will the 14” Wheel Rings fit my 17” wheels?

Is the Wheel Ring Kit waterproof?

What colors are featured in the Million Color Wheel Ring Lights?

Do you offer single color wheel rings?

How long are the wires on the Million Color Wheel Ring Light Kit?

Wheel Ring Kits

If I purchase a Single Color Wheel Well kit, can I upgrade my control box at a later date to support multi-color?

I would like to add-on a Wheel Well Kit to an existing Single Color Wireless SMD LED Underbody Lighting Kit, may I choose a different color for the Wheel Wells?

Can I combine two wheel well kits to produce a brighter light?

Is the Wheel Well Kit waterproof?

Will the 24” wheel well tubes fit on my vehicle with 24” rims?

Can the Wheel Well Tubes be mounted to the dust shield of my brake system?

Why is my control box illuminating but by kit is not coming on? (Wheel Well Kits)

Do you have a Million Color wheel well kit I can pair with my Million Color Slimline Underbody Kit?

Can I mount the Wheel Well Lighting Kit tubes directly to my wheels?

Am I able to install the Advanced 3 Million USB Wheel Well Lights by themselves, without the Underbody Kit?

What colors are featured in the Advanced 3 Million USB Wheel Well Lights Add-On Kit?

How long are the tubes and wires on the Single Color Wheel Well Lighting Kits?

What are the different color options for the Single Color Wheel Well Lights?

How do I control the Single Color Wheel Well Kits?

What colors are featured in the Million Color Flexible LED Wheel Well Lights?

How long are the tubes and wires on the Multi Color Wheel Well Lighting Kits?

How do I control the Million Color Flexible LED Wheel Well Lights?

Am I able to Control the Wheel Well Kit with my Smartphone?

Are Wheel Well Lighting Kits legal in my State?

Do the tubes in the Wheel Well Kits come with wiring or are the tubes wireless?

How long does it take to install a Wheel Well Kit?

What is the best Wheel Well Kit you have?

How bright are the LEDs on the Wheel Well Lighting Kits?

Where do I install the Wheel Well Kit lighting tubes?

What is the cost of a Wheel Well Kit?

Wheel Well Kits

Can I operate the different sections (Underbody, Wheel Well, Interior/Canopy) of the expandable kit separately?

How Do I control the 4pc Million Color Golf Cart Expandable Underbody Light Kit?

How many solid colors are in the 4pc Million Color Golf Cart Expandable Underbody Light Kit?

Are there any patterns or flashing modes available with 4pc Million Color Golf Cart Expandable Underbody Light Kit?

Am I able to put the 4pc Million Color Golf Cart Expandable Underbody Light Kit on one color without it cycling to another?

Do I need a voltage reducer to install my golf cart kit?

My 48v golf cart uses 4 12v batteries. Can I just connect my kit to one of these batteries?

Will your Voltage Reducer work with my 72V Golf Cart?

How do I install the Voltage Reducer?

Where would I mount the voltage reducer after installing it?

Is the Single Color Golf Cart Kit waterproof?

If I purchase a Single Color Golf Cart kit, can I upgrade my control box at a later date to support multi-color?

How long is the wire on each tube for the Single Color Golf Cart Underbody Lights?

Am I able to add additional tubes to the Single Color Golf Cart Underbody Lights?

Are there any patterns or flashing modes available with the Single Color Golf Cart Kit?

Why is my control box illuminating but by kit is not coming on? (Single Color Golf Cart Underbody Lights)

How do I control the Single Color LED Golf Cart Underbody Lights?

What is the cost of a Golf Cart Kit?

How bright are the LED Lights on the Golf Cart kits?

What is the estimated install time for the golf cart kit?

How long is the wiring on each golf cart kit tube?

Are there install instructions for the Million Color Expandable Golf Cart Kit?

Do the tubes in the golf cart kit come with wiring or are the tubes wireless?

Am I able to control my Golf Cart Kit with my Smartphone?

Golf Cart Kits

What Kits are Capable of Smartphone Control?

Do the Motorcycle & ATV Lighting Kits come with everything I need to install them?

Do I need the Adhesion Promoter to install my kit?

Are the Motorcycle & ATV kits waterproof?

Are wiring extensions included with the Motorcycle & ATV Light kit?

How much wiring comes at the end of each strip?

How do the brake and hazard lights work on the Advanced Million Color Slingshot® Lighting Kit with Smartphone Control?

Do I receive wheel well lights with the Trike Kit?

Can I use the Smartphone Control with a Trike Kit?

How many remotes are included with the Advanced Million Color Motorcycle & ATV kit?

What is the Key Fob range? How far away can I be from my bike, and still control the lighting kit?

Motorcycle & ATV Kits

FAQs