If you are looking to give your GMC Sierra HD a major styling and functional upgrade, the Smoked Sequential LED Sidemarkers are the perfect solution. These markers are a complete, plug-and-play replacement for your factory fender lights, offering a much more modern and aggressive look than the stock units. The Smoked lens option provides a dark, blacked-out appearance that blends seamlessly with the factory trim when the lights are off. Once powered up, they reveal a unique dynamic startup sequence that animates from the center outward before settling into a crisp amber running light.

Features

• Dynamic Sequential Signal: Adds a functional, sweeping amber turn signal pattern to your fenders for increased safety and a premium look.
• Animated Welcome Sequence: Features a unique startup effect where the LEDs illuminate from the center outward every time the parking lights are activated.
• Fully Illuminated Housing: Utilizes an inner diffusing lens combined with an outer lens to create a perfectly even, uniform amber glow without visible "hot spots."
• OEM-Grade Construction: Designed using original CAD data for a perfect factory fit and built with UV-stable materials to prevent fading over time.
• Plug-and-Play Installation: Includes all necessary wiring harnesses to connect directly to factory sockets and headlight connectors—no splicing or modification required.

Specs

• Function : Sequential Turn Signal & Dynamic Startup
• Lens Color : Smoked (Blacked-out appearance)
• Output Color : Intense Amber
• Measured Output : 30 Lumens
• Wattage : Parking: 2.1W / Turn Signal: 4.5W
• Current Draw : 1.1A @ 12.8V
• Operating Voltage : 9-16V
• Materials : ABS Base with PMMA Lens
• Operating Temp : -40°C to 85°C (-40°F to 185°F)

Includes

• Sidemarkers : Four (4) Smoked LED Sidemarkers (Full front/rear set)
• Harnesses : Two (2) Plug-and-play wiring harnesses for sequential function
• Hardware : Ten (10) Replacement fender clips and four (4) rubber plugs

Notes

• Sequential option is not compatible with 2023 Denali Ultimate and AT4 HD trim levels
• Smoked lens option is intended for styling and may not meet DOT/SAE compliance in all regions
• Backed by a 3-year replacement warranty