Morimoto GMC Sierra (14-18) X3B LED Third Brake Light
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Warranty Information
Vendor warranty summary
Morimoto Warranty
At a glance: 5 years on headlight and tail light assemblies; limited lifetime on off-road lighting
This is Morimoto's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 4, 2026.
Coverage by product
| Product or component | Coverage |
|---|---|
| Headlight and tail light assemblies (e.g. XB) | 5 years |
| Off-road lighting | Limited lifetime |
| 2Stroke LED bulbs (per product page) | Limited lifetime |
What's covered
- Product failures and defects on headlights and tail lights for 5 years
- Off-road lights for a limited lifetime
- Products must be bought from an authorized Morimoto dealer
What's not covered
- Modifications, alterations, or misuse
- Products bought from unauthorized sellers
- Damage or problems caused by improper installation (document issues before removing lights)
How to make a Morimoto warranty claim
- If something isn't right, take photos or video of the problem before removing the lights
- Contact Morimoto support by phone or email before doing anything else
- Follow their instructions (some items may be field-destroyed with photos; housings usually need to be returned)
Morimoto contact: Phone: 424-239-5142 · Email: morimotohid@morimotohid.com · Claim page / support
Bought it from NVMOS? Start with us.
Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to Morimoto, and help it along either way.
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Disclaimer: The information on this page describes Morimoto's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: Morimoto official warranty information. Last updated on nvmos.com: October 4, 2026. See our return policy for NVMOS's own terms.
About the brand
Morimoto is an Atlanta lighting company that designs, engineers and tests its lights in-house. NVMOS carries Morimoto XB LED headlights and tail lights, fog lights, ditch light kits, Banger pods and more for Ford, Ram, Chevy/GMC, Toyota, Jeep and Nissan trucks. For owners tired of dim factory halogens.
Based in: Atlanta, Georgia · Founded: 2008 · Lead time: In-stock items ship in 24–48 hours
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Warranty terms are set by Morimoto, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
Morimoto X3B LED Third Brake Light — GMC Sierra (2014–2018)
The X3B upgrades the 14–18 Sierra's third brake light with modern 3D brake optics and real bed illumination in one piano-black housing. Quad red optics driven by 3W LEDs keep you visible day and night, rail-style clear optics light the bed evenly, and it all installs on the original mounting points with the existing harness.
| Spec | Detail |
|---|---|
| Brake optics | Quad 3D optics, optical-grade red polycarbonate, 3W LEDs |
| Housing | Piano-black polycarbonate |
| Bed lighting | Rail-style clear optics, even light with no dark spots |
| Install | Original mounting points, existing wire harness, no modifications |
| Optional | F1-style rapid flash module (sold separately) |
| Compliance | DOT and SAE compliant |
| Warranty | 5 years |
| Fitment | GMC Sierra 2014–2018 |
Is it hard to install?
No — it uses the original mounting points and connects to the existing wire harness, with no modifications required.
Is it street legal?
Yes — the assembly complies with DOT and SAE regulations.
Does it still light up the bed?
Yes — rail-style clear optics provide even lighting across the truck bed without dark spots.
Can I add a rapid-flash function?
Yes — an optional F1-style rapid flash module is available separately for added visual impact.
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Technical specifications
| Input | GM Multi-Pin OEM |
|---|---|
| Housing | Piano Black Polycarbonate |
| Lens | UV-Resistant Clear Polycarbonate |
| Bed Light | White (3W) |
Compatibility
| Chevrolet Silverado 1500/HD | 2014-2018 |
|---|---|
| Replaces GM Part # | 23509162, 20979071 |
| NOTE | The unlock feature of the factory light is not retained. |
| NOTE | These housings have been designed for, and tested on, US-Spec vehicles. Other countries' compatibility may vary and is not guaranteed nor always known. |
In the box
| Third Brake Light | 1x Morimoto X3B LED Module (14-18 Chevrolet Silverado) |
|---|---|
| Wiring | Plug and Play Adapter Harness |
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