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NEW 14-18 GMC Sierra 1500 & 15-19 2500/3500 Sequential LED Headlights | Form Lighting

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The GMC Sierra is an excellent truck, with plenty of modern features. GM started including LED components in the headlights but stopped short of full LED. With upgraded Projector or Reflector headlights from Form Lighting, you can add full LED functionality to your truck, along with a number of modern features.


Projector. What’s better than one projector? Three projectors. And in these headlights, all three are bi-LED units, providing output for both low beam and high beam illumination. With a sharp cutoff, broad width, and high intensity, these units provide a serious upgrade in output.

Reflector. These headlights feature full LED function, including low beam and high beam. Using modern, application-specific optical reflectors, these lights produce much higher intensity and output than the factory halogen units.


Modern Styling. Inspired by the late-model Sierra styling, these lights will give your truck a much more modern appearance. This includes an LED turn signal along with a distinctive C-shaped daytime running light (DRL). If your factory headlights don’t have a DRL, no worries! Installation of this feature is simple thanks to the included harness.


Startup Sequence. These headlights are packed with the latest and most modern lighting functions, including a startup or “welcome” sequence. Anytime the running lights turn on, they will illuminate in a two-stage chasing sequence that is sure to turn heads, with an ultra-premium look.


Sequential Turn Signal. The startup sequence isn’t the only thing that stands out. These headlights also feature an integrated sequential LED turn signal. Every time the turn signal is activated, amber LEDs activate in a smooth, chasing sequence.


OEM-Grade Construction. Form Lighting headlights are built with quality in mind, using OE-grade materials and design techniques. This includes durable UV-coated polycarbonate lenses, automotive-grade LED emitters, breather vents, and OEM plug-and-play connectors. They are assembled in an IATF 16949-certified facility, which is a quality management system designed for the automotive industry. While they may not be the cheapest option you’ll find, you can rest assured that these lights will provide durable and superior performance.


Road Legal. Form Lighting headlights meet all SAE, DOT, FMVSS, and CMVSS standards and regulations for legal on-road use in the United States and Canada, when installed and aimed properly - which is easy to do with the integrated screw-type adjusters.


Plug-and-Play, Bolt-On Install. Our headlights for the Sierra are completely plug-and play and will fit perfectly, bolting right up to the factory mounting points without any gaps. They were designed to plug into the factory headlight connectors, with no wiring modifications needed. No errors, flickering, or hyperflashing! If you’d like to enable the DRL feature, a fusebox wire harness is included, which does not require any wire cutting or splicing.

Click the video below to see HOW to install our GMC Sierra LED Headlights!



Two-Year Warranty. All Form Lighting products are rigorously tested for reliability, and backed by a two-year warranty. The warranty is supported directly by Form Lighting, and any replacement parts, if needed, are shipped quickly from Form Lighting’s US warehouse. In the rare occasion that you may need to utilize your warranty, we try to keep the process as simple as possible - for example, no return is normally necessary.


Two-Year Warranty. All Form Lighting products are rigorously tested for reliability, and backed by a two-year warranty. The warranty is supported directly by Form Lighting, and any replacement parts, if needed, are shipped quickly from Form Lighting’s US warehouse. On the rare occasion that you may need to utilize your warranty, we try to keep the process as simple as possible - for example, no return is normally necessary.

Do you have additional questions? We’ll be happy to help!
• Reply to this thread
• Send us a direct message
• Email: [email protected]

Are you a US forum member? DM us for a FREE shipping code!

Jordan M.
FORM Lighting
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NOW through 9/9, all FORM Lighting products are 15% off!

No coupon required.

This discount will be automatically applied to your cart at checkout.

Click HERE to visit the FORM website!
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This is it! Our Labor Day Sale ends at midnight tonight, 9/9.

It’s our biggest deal yet at 15% off, so you don’t want to miss it!

No coupon required.

This discount will be automatically applied to your cart at checkout.

Click HERE to visit the FORM website!
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The GMC Sierra is an excellent truck, with plenty of modern features. GM started including LED components in the headlights but stopped short of full LED. With upgraded Projector or Reflector headlights from Form Lighting, you can add full LED functionality to your truck, along with a number of modern features.


Projector. What’s better than one projector? Three projectors. And in these headlights, all three are bi-LED units, providing output for both low beam and high beam illumination. With a sharp cutoff, broad width, and high intensity, these units provide a serious upgrade in output.

Reflector. These headlights feature full LED function, including low beam and high beam. Using modern, application-specific optical reflectors, these lights produce much higher intensity and output than the factory halogen units.


Modern Styling. Inspired by the late-model Sierra styling, these lights will give your truck a much more modern appearance. This includes an LED turn signal along with a distinctive C-shaped daytime running light (DRL). If your factory headlights don’t have a DRL, no worries! Installation of this feature is simple thanks to the included harness.


Startup Sequence. These headlights are packed with the latest and most modern lighting functions, including a startup or “welcome” sequence. Anytime the running lights turn on, they will illuminate in a two-stage chasing sequence that is sure to turn heads, with an ultra-premium look.


Sequential Turn Signal. The startup sequence isn’t the only thing that stands out. These headlights also feature an integrated sequential LED turn signal. Every time the turn signal is activated, amber LEDs activate in a smooth, chasing sequence.


OEM-Grade Construction. Form Lighting headlights are built with quality in mind, using OE-grade materials and design techniques. This includes durable UV-coated polycarbonate lenses, automotive-grade LED emitters, breather vents, and OEM plug-and-play connectors. They are assembled in an IATF 16949-certified facility, which is a quality management system designed for the automotive industry. While they may not be the cheapest option you’ll find, you can rest assured that these lights will provide durable and superior performance.


Road Legal. Form Lighting headlights meet all SAE, DOT, FMVSS, and CMVSS standards and regulations for legal on-road use in the United States and Canada, when installed and aimed properly - which is easy to do with the integrated screw-type adjusters.


Plug-and-Play, Bolt-On Install. Our headlights for the Sierra are completely plug-and play and will fit perfectly, bolting right up to the factory mounting points without any gaps. They were designed to plug into the factory headlight connectors, with no wiring modifications needed. No errors, flickering, or hyperflashing! If you’d like to enable the DRL feature, a fusebox wire harness is included, which does not require any wire cutting or splicing.

Click the video below to see HOW to install our GMC Sierra LED Headlights!



Two-Year Warranty. All Form Lighting products are rigorously tested for reliability, and backed by a two-year warranty. The warranty is supported directly by Form Lighting, and any replacement parts, if needed, are shipped quickly from Form Lighting’s US warehouse. In the rare occasion that you may need to utilize your warranty, we try to keep the process as simple as possible - for example, no return is normally necessary.


Two-Year Warranty. All Form Lighting products are rigorously tested for reliability, and backed by a two-year warranty. The warranty is supported directly by Form Lighting, and any replacement parts, if needed, are shipped quickly from Form Lighting’s US warehouse. On the rare occasion that you may need to utilize your warranty, we try to keep the process as simple as possible - for example, no return is normally necessary.

Do you have additional questions? We’ll be happy to help!
• Reply to this thread
• Send us a direct message
• Email: [email protected]

Are you a US forum member? DM us for a FREE shipping code!

Jordan M.
FORM Lighting
Prime Day savings are here! Ends midnight CST, 10/12/22.

NOW through 10/12, you can get 10% off at our Amazon store for Prime Day!

No coupon required.

This discount will be automatically applied.

Click HERE to visit the FORM Amazon store!

The GMC Sierra is an excellent truck, with plenty of modern features. GM started including LED components in the headlights but stopped short of full LED. With upgraded Projector or Reflector headlights from Form Lighting, you can add full LED functionality to your truck, along with a number of modern features.


Projector. What’s better than one projector? Three projectors. And in these headlights, all three are bi-LED units, providing output for both low beam and high beam illumination. With a sharp cutoff, broad width, and high intensity, these units provide a serious upgrade in output.

Reflector. These headlights feature full LED function, including low beam and high beam. Using modern, application-specific optical reflectors, these lights produce much higher intensity and output than the factory halogen units.


Modern Styling. Inspired by the late-model Sierra styling, these lights will give your truck a much more modern appearance. This includes an LED turn signal along with a distinctive C-shaped daytime running light (DRL). If your factory headlights don’t have a DRL, no worries! Installation of this feature is simple thanks to the included harness.


Startup Sequence. These headlights are packed with the latest and most modern lighting functions, including a startup or “welcome” sequence. Anytime the running lights turn on, they will illuminate in a two-stage chasing sequence that is sure to turn heads, with an ultra-premium look.


Sequential Turn Signal. The startup sequence isn’t the only thing that stands out. These headlights also feature an integrated sequential LED turn signal. Every time the turn signal is activated, amber LEDs activate in a smooth, chasing sequence.


OEM-Grade Construction. Form Lighting headlights are built with quality in mind, using OE-grade materials and design techniques. This includes durable UV-coated polycarbonate lenses, automotive-grade LED emitters, breather vents, and OEM plug-and-play connectors. They are assembled in an IATF 16949-certified facility, which is a quality management system designed for the automotive industry. While they may not be the cheapest option you’ll find, you can rest assured that these lights will provide durable and superior performance.


Road Legal. Form Lighting headlights meet all SAE, DOT, FMVSS, and CMVSS standards and regulations for legal on-road use in the United States and Canada, when installed and aimed properly - which is easy to do with the integrated screw-type adjusters.


Plug-and-Play, Bolt-On Install. Our headlights for the Sierra are completely plug-and play and will fit perfectly, bolting right up to the factory mounting points without any gaps. They were designed to plug into the factory headlight connectors, with no wiring modifications needed. No errors, flickering, or hyperflashing! If you’d like to enable the DRL feature, a fusebox wire harness is included, which does not require any wire cutting or splicing.

Click the video below to see HOW to install our GMC Sierra LED Headlights!



Two-Year Warranty. All Form Lighting products are rigorously tested for reliability, and backed by a two-year warranty. The warranty is supported directly by Form Lighting, and any replacement parts, if needed, are shipped quickly from Form Lighting’s US warehouse. In the rare occasion that you may need to utilize your warranty, we try to keep the process as simple as possible - for example, no return is normally necessary.


Two-Year Warranty. All Form Lighting products are rigorously tested for reliability, and backed by a two-year warranty. The warranty is supported directly by Form Lighting, and any replacement parts, if needed, are shipped quickly from Form Lighting’s US warehouse. On the rare occasion that you may need to utilize your warranty, we try to keep the process as simple as possible - for example, no return is normally necessary.

Do you have additional questions? We’ll be happy to help!
• Reply to this thread
• Send us a direct message
• Email: [email protected]

Are you a US forum member? DM us for a FREE shipping code!

Jordan M.
FORM Lighting


Our Black Friday Sale is here, and that means it’s time to save!

Now through 11/29, you can get 15% OFF FORM Lighting storewide!

No coupon required.

This discount is automatically applied.

CLICK HERE TO SAVE AT THE FORM STORE!
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Those are a step in the right direction in making the otherwise ugly headlights on the GMC look more.. presentable. The turn signals look a little.. dim though.
Those are a step in the right direction in making the otherwise ugly headlights on the GMC look more.. presentable. The turn signals look a little.. dim though.
Thanks for checking them out! We will pass that feedback along to our team.

The GMC Sierra is an excellent truck, with plenty of modern features. GM started including LED components in the headlights but stopped short of full LED. With upgraded Projector or Reflector headlights from Form Lighting, you can add full LED functionality to your truck, along with a number of modern features.


Projector. What’s better than one projector? Three projectors. And in these headlights, all three are bi-LED units, providing output for both low beam and high beam illumination. With a sharp cutoff, broad width, and high intensity, these units provide a serious upgrade in output.

Reflector. These headlights feature full LED function, including low beam and high beam. Using modern, application-specific optical reflectors, these lights produce much higher intensity and output than the factory halogen units.


Modern Styling. Inspired by the late-model Sierra styling, these lights will give your truck a much more modern appearance. This includes an LED turn signal along with a distinctive C-shaped daytime running light (DRL). If your factory headlights don’t have a DRL, no worries! Installation of this feature is simple thanks to the included harness.


Startup Sequence. These headlights are packed with the latest and most modern lighting functions, including a startup or “welcome” sequence. Anytime the running lights turn on, they will illuminate in a two-stage chasing sequence that is sure to turn heads, with an ultra-premium look.


Sequential Turn Signal. The startup sequence isn’t the only thing that stands out. These headlights also feature an integrated sequential LED turn signal. Every time the turn signal is activated, amber LEDs activate in a smooth, chasing sequence.


OEM-Grade Construction. Form Lighting headlights are built with quality in mind, using OE-grade materials and design techniques. This includes durable UV-coated polycarbonate lenses, automotive-grade LED emitters, breather vents, and OEM plug-and-play connectors. They are assembled in an IATF 16949-certified facility, which is a quality management system designed for the automotive industry. While they may not be the cheapest option you’ll find, you can rest assured that these lights will provide durable and superior performance.


Road Legal. Form Lighting headlights meet all SAE, DOT, FMVSS, and CMVSS standards and regulations for legal on-road use in the United States and Canada, when installed and aimed properly - which is easy to do with the integrated screw-type adjusters.


Plug-and-Play, Bolt-On Install. Our headlights for the Sierra are completely plug-and play and will fit perfectly, bolting right up to the factory mounting points without any gaps. They were designed to plug into the factory headlight connectors, with no wiring modifications needed. No errors, flickering, or hyperflashing! If you’d like to enable the DRL feature, a fusebox wire harness is included, which does not require any wire cutting or splicing.

Click the video below to see HOW to install our GMC Sierra LED Headlights!



Two-Year Warranty. All Form Lighting products are rigorously tested for reliability, and backed by a two-year warranty. The warranty is supported directly by Form Lighting, and any replacement parts, if needed, are shipped quickly from Form Lighting’s US warehouse. In the rare occasion that you may need to utilize your warranty, we try to keep the process as simple as possible - for example, no return is normally necessary.


Two-Year Warranty. All Form Lighting products are rigorously tested for reliability, and backed by a two-year warranty. The warranty is supported directly by Form Lighting, and any replacement parts, if needed, are shipped quickly from Form Lighting’s US warehouse. On the rare occasion that you may need to utilize your warranty, we try to keep the process as simple as possible - for example, no return is normally necessary.

Do you have additional questions? We’ll be happy to help!
• Reply to this thread
• Send us a direct message
• Email: [email protected]

Are you a US forum member? DM us for a FREE shipping code!

Jordan M.
FORM Lighting


LAST CHANCE for 15% off LED headlights for your Sierra! Form Lighting's Black Friday Sale ends TONIGHT!

No coupon required.

This discount is automatically applied.

CLICK HERE TO SAVE AT THE FORM STORE!
See less See more

ONE. MORE. SALE. 🏷

Now through 1/5, you can get 15% OFF all FORM Lighting products exclusively through Amazon and our authorized dealers.

This sale includes our new LED headlights for your 14-18/15-19 Sierra!

Shop our Amazon store ➡ Form Lighting
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There’s only a few days left to save!

Through midnight 1/5, you can get 15% OFF all FORM Lighting products exclusively through Amazon and our authorized dealers.

Start your new year off right with some fresh headlights!

Shop our Amazon store ➡ Form Lighting
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Last chance everyone!

Through midnight TONIGHT, you can get 15% OFF all FORM Lighting products exclusively through Amazon and our authorized dealers.

Don’t miss out on this great chance to pick up some fresh new lights!

Shop our Amazon store ➡ https://amzn.to/3WlDQcv
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How it feels when you unbox your new headlights. 😎

Check out our YouTube channel to see more!

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Modernizing your Sierra doesn't have to be difficult. 😎 Our headlights make it easy!

Check out our YouTube channel to see more!

Get Yours Here!

The lowest prices of the season are HERE! 😱

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Have you been thinking about upgrading your headlights? NOW is the time to save BIG!

Memorial Day Savings are here at Form Lighting, which means through June 2nd, you can get 10% OFF sitewide.

Get yours before it's gone! ➡ https://www.formlights.com/
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