Diode Dynamics 2014-2015 GMC Sierra Switchback DRL LED Boards
Warranty Information
Vendor warranty summary
Diode Dynamics Warranty
At a glance: 3 years on every Diode Dynamics product, 8 years on Stage Series and Elite Series lamps, and lifetime coverage on Stage Series pods, rock lights, SL2 bulbs and off-road brackets (orders from April 15, 2025)
This is Diode Dynamics' policy, not an NVMOS policy. We've summarized Diode Dynamics' published warranty in plain English. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 15, 2026.
Coverage by product
| Product or component | Coverage |
|---|---|
| All Diode Dynamics products: defects in materials and workmanship | 3 years |
| Stage Series and Elite Series lamp assemblies and lamp mounting brackets (functional failure; wiring, harnesses and lens covers excluded after year 3) | 8 years |
| Stage Series LED pods, Stage Series rock lights, SL2 and SL2 Pro LED bulbs, off-road mounting brackets, ordered on or after April 15, 2025 (functional failure after year 3) | Lifetime |
| Commercial or industrial use (construction, mining, fleet, agriculture and similar) | Capped at 8 years |
| Form Lighting products (a Diode Dynamics brand) | 2 years (details) |
What's covered
- Defective products are replaced with the same item, or a comparable one if it's been discontinued
- Diode Dynamics may replace just the failed component
- Finish defects caused by manufacturing, during the first 3 years
- Moisture beyond normal condensation that points to a seal failure, at Diode Dynamics' discretion
- Free tech support for the life of the product, even after the warranty ends
What's not covered
- Normal condensation, and paint or coating wear from regular use
- Installation or labor costs
- Improper installation or use, abuse, or opening, rewiring or repairing a product
- Swapping lenses on Stage Series lights voids the 3-year coverage (the 8-year coverage stays)
- Purchases from unauthorized sellers; coverage is for the original buyer and isn't transferable
How to make a Diode Dynamics claim
- Keep your proof of purchase; every claim needs it (gift recipients can register within 90 days of the original purchase instead)
- Request an RMA through Diode Dynamics' returns portal and work through diagnosis with their support team
- Nothing goes back without an RMA number; include photos for moisture claims
- For US customers, Diode Dynamics covers shipping on 3-year claims, plus return shipping for inspection on 8-year and lifetime claims
Diode Dynamics contact: Phone: (314) 205-3033 · Contact form · Monday to Friday, 10 AM to 5 PM Central · St. Charles, Missouri
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 Diode Dynamics, and help it along either way.
Disclaimer: The information on this page describes Diode Dynamics' 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: Diode Dynamics warranty. Last updated on nvmos.com: October 15, 2026. See our return policy for NVMOS's own terms.
About the brand
Diode Dynamics builds LED lighting in St. Charles, Missouri: Stage Series SS3 and SS5 pods, CrossLink light bars, ditch and fog kits, bulbs and accents. It designs, engineers and assembles as much as it can in the USA instead of rebranding imports, which shows in the warranty. NVMOS carries the Diode Dynamics off-road, vehicle lamp, bulb and accent lines for Toyota, Jeep, Ford, GM, Ram and Nissan trucks and SUVs,...
Based in: St. Charles, Missouri · Founded: 2006 · Made in: Designed and assembled in the USA · Quality: ISO 9001:2015 certified · Lead time: In-stock items usually leave Diode Dynamics the same business day; ask us about any item
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Warranty terms are set by Diode Dynamics, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
Diode Dynamics Switchback DRL LED Boards replace the factory LED boards in the 2014-2015 GMC Sierra headlights. Two high-power LEDs take the place of each original white chip for a brighter running light that holds up in direct sunlight, and the boards add an amber turn signal to the accent.
Why it works
- Two high-power LEDs in place of each factory white chip.
- A big jump in brightness, still visible in direct sunlight.
- Brighter white running light plus an amber turn signal.
- External, waterproof, linear-regulated drivers.
- Runs at full brightness as a DRL with no electrical issues (tested by Diode Dynamics).
- Engineered and assembled in the USA.
Options
One version: the Switchback (white running light / amber turn) board set.
Fitment
Diode Dynamics lists these boards for:
- GMC Sierra 2014-2015
- GMC Sierra 2500/3500 2016-2019
The part name covers 2014-2019 Sierra headlights; call us if you are unsure your headlight matches.
Specs at a glance
- Connectors: JST Inline Connectors, T-Tap Inputs
- Driver: external, waterproof, linear regulated
- Driver size: 2.5" x 1.38" x 0.88"
- Board: FR4 PCB
Warranty
Diode Dynamics backs the boards with a 3-year replacement limited warranty. Full terms are on our Diode Dynamics warranty page, and the rest of the brand lives in our Diode Dynamics lineup.
Questions before you order?
Fitment questions are easier to settle before the box ships. Call or text Carl & Anton at (920) 249-7744 or use the chat — real humans in Sheboygan, Wisconsin, not a call center.
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Specifications
Diode Dynamics 2014-2015 GMC Sierra Switchback DRL LED Boards FAQs
Which trucks do these fit?
Diode Dynamics lists them for the GMC Sierra 2014-2015; GMC Sierra 2500/3500 2016-2019. Call or text the real humans at NVMOS, (920) 249-7744.
Will they throw errors or flicker?
Diode Dynamics lists them as tested and confirmed with no electrical issues, and they run at full brightness as a DRL.
How do they connect?
They use JST Inline Connectors, T-tap Inputs, with external waterproof drivers. Because they replace the factory boards in the headlight, it is a more involved job than a bulb swap.
What does Switchback mean here?
The boards run a brighter white running light and add an amber turn signal to the headlight accent.
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