2020-2025+ GMC Sierra HD 2500 3500 Sequential LED Smoked Side Markers
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FAQs
FAQs
Why choose AutoLEDTech?
AutoLEDTech was one of the first companies in the US to offer Flow Series LEDs in 2016. Over the years, we have added more than 600 products to our lineup from only the highest quality manufacturers, with over 10,000 customers served and counting!
Do your products have a warranty?
All of our products include an industry standard 1 year warranty, though some products from manufacturers like Diode Dynamics and Morimoto include a 5-8 year warranty.
What is the difference between Flow Series and RGBW?
Flow Series LEDs can change to any solid color, pure white, plus hundreds of moving, multicolor, flowing patterns. Sequential turn signal/DRL startup functions are available with most of the bluetooth controller options.
RGBW LEDs can change to any solid color, pure white, plus several flashing/fading patterns. Flashing turn signals come standard with most RGBW products & controllers.
How can I contact you with questions about products or my order?
The quickest way to get in touch with us is to use the "Expert Help" tab where we will reply within 24 hours about product questions, order inquiries, warranty requests, or anything else!
Where do your products ship from?
All of our products ship from the USA. Most products ship from our warehouse in Panama City Beach, FL though some select products ship directly from manufacturers or warehouses in Georgia, New Jersey, or Arizona in order to keep your shipping costs and delivery times LOW!
How long does shipping take?
Most in stock items ship within 1-2 business days. Transit times tend to be an average of 3-5 days.
Lead times for custom items, such as headlights, steering wheels, etc are as follows:
Grill Light Bars: 3-5 business days
Custom Steering Wheels: 4-6 weeks
Custom Headlights: 8-10 weeks (Can be longer or shorter depending on model)
How do I track my order?
As soon as your order ships, you will receive an email with the related tracking number and link. You can also login to your customer account or SHOP app account to check order status (Confirmed, Shipped, In Transit, Delivered).
What is your return/cancellation policy?
We accept returns on most products within 30 days. See our detailed return/cancelation policy on our FAQ page.
Shipping & Delivery
Shipping & Delivery
Most in stock items ship within 1-2 business days. Lead times for custom items, such as headlights, steering wheels, etc are as follows:
Grill Light Bars: 3-5 business days
Custom Steering Wheels: 4-6 weeks
Custom Headlights: 8-10 weeks (Can be longer or shorter depending on model)
Shipping Fees:
Free for orders over $250 in the US
$7.99 for orders under $250 in the US
$34.99 for all international orders**
**Large/Heavy packages such as headlights, tail lights, etc do not qualify for the flat international shipping fee and will be invoice separately**
Description
Description
Smoked (blacked out) LED Side marker lights designed for your 2020-2025+ GMC Sierra HD 2500 & 3500 truck that feature a sleek, thin strip of LEDs for a clean and subtle appearance. The 2020-2024 GMC Sierra HD 2500 & 3500 LED Side marker lenses are available in clear, smoked, and OEM amber/orange). You can also choose between standard turn signal or sequential turn signal. Both options feature an animated start-up sequence as well that starts from the middle and moves outwards.
WE DO HAVE A DIFFERENT VERSION IN STOCK HERE
IF YOU HAVE A 2024+ MODEL, THE STANDARD VERSION IS THE ONLY COMPATIBLE VERSION, THE SEQUENTIAL VERSION WILL NOT PLUG IN TO THE NEW HEADLIGHTS!
Features
- Plug-and-play replacement for 2020-2024 GMC Sierra HD fender lights
- Dynamic startup sequence with animated effect
- Fully-illuminated housing, with dual-lens design for an even glow
- Optional Sequential turn signal feature, with plug-and-play wiring harness
- OEM-grade construction and perfect fitment
- Engineered and assembled in USA
Sequencing Turn Signal. Our sequential option provides an upgrade in functionality. Anytime you hit your turn signal, the sidemarkers illuminate in a sequencing amber pattern to indicate signaling! The sequential option uses the included plug-and-play harness to power the fender lights using the headlight connector.
OEM Grade. Unlike other sidemarkers on the market, these sidemarkers were designed for OEM standards of quality, using automotive-grade plastic materials, UV-stable lenses, and quality connectors. The dual-lens design uses an inner diffusing lens combined with an outer lens, for an even, uniform glow. The units themselves are designed directly from original CAD data for a perfect fit, and use OEM-grade connectors that plug right into the factory socket.
Reliability. These LEDs are designed with newer constant-current circuitry and transient voltage protection. These features, found in factory-installed lighting components, protect the circuit over time, ensuring years of flicker-free performance. They also include a breather vent, to prevent pressure buildup and maintain a strong weathertight seal for years to come.
CLICK HERE FOR THE 2020-2024 GMC Sierra HD 2500 3500 Sequential LED Side Marker INSTALLATION VIDEO
Options
All sidemarkers illuminate in bright amber but there are three colors of lenses. Choose the one that fits your style!
Amber/Orange: Also called OEM, these match the originals, and are DOT/SAE compliant in both illumination and lens color.
Smoked: A dark appearance, great on black and grey vehicles.
Clear: Blends nicely on white and silver. These are clear in color, but still have the retroreflector optics.
What's Included
Standard
- Four (4) replacement sidemarkers
- Ten (10) fender clips
Sequential
- Four (4) replacement sidemarkers
- Two (2) wiring harnesses
- Ten (10) fender clips
- Four (4) rubber plugs
Fitment
- 2020 GMC Sierra HD 2500 3500 trucks
- 2021 GMC Sierra HD 2500 3500 trucks
- 2022 GMC Sierra HD 2500 3500 trucks
- 2023 GMC Sierra HD 2500 3500 trucks
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- 2024 GMC Sierra HD 2500 3500 trucks (NON-SEQUENTIAL ONLY!)
- 2025+ GMC Sierra HD 2500 3500 trucks (NON-SEQUENTIAL ONLY!)