{"product_id":"lachtem-auto-fog-all-lights-mod-harness-for-2022-2026-chevy-silverado-sierra-plug-and-play-no-cutting","title":"LACHTEM Auto Fog \u0026 All-Lights Mod Harness for 2022–2026 Chevy Silverado \/ Sierra — Plug-and-Play, No Cutting","description":"\u003cp\u003e\u003cstrong\u003eLACHTEM Auto Fog \u0026amp; All Lights Mod Harness adds automatic fog-light control and an all-lights-on function to compatible 2022–2026 Chevy Silverado and GMC Sierra trucks without cutting or coding.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for refreshed Silverado and Sierra models, this plug-and-play harness restores fog lamp behavior and enables fogs, low beams and high beams to operate together when high beams are active. Built with a corrugated, flame-resistant shell and OEM-style connectors, the harness installs behind the driver-side kick panel and interfaces directly with the factory headlight module and BCM.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this harness make fog lights automatic?\u003c\/h3\u003e\n\u003cp\u003eThe harness intercepts the factory headlight wiring so fog lights can turn on when the headlight switch is left in Auto or when high beams are engaged. It respects intelligent beam logic so fogs follow your high-beam operation in standard modes, improving forward illumination without rewiring the truck.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eActivates fogs when headlight switch is in Auto.\u003c\/li\u003e\n  \u003cli\u003eAllows fogs to remain on with manual or automatic high beams (outside smart-beam restrictions).\u003c\/li\u003e\n  \u003cli\u003eNo permanent changes to stock wiring or BCM programming required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicle models and years are compatible?\u003c\/h3\u003e\n\u003cp\u003eThis harness is purpose-built for the refreshed model years of Chevy Silverado and GMC Sierra trucks, covering both 1500 and HD variants where specified. Check fitment before purchase to confirm compatibility with your exact model and year.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eChevy Silverado 1500: 2022–2026 refreshed models.\u003c\/li\u003e\n  \u003cli\u003eChevy Silverado 2500\/3500 HD: 2024–2027 refreshed models (selected years).\u003c\/li\u003e\n  \u003cli\u003eGMC Sierra 1500: 2022–2026 refreshed models; Sierra 2500\/3500 HD: 2024–2027 refreshed models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what does \"plug-and-play\" mean here?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward and reversible: remove the driver-side kick panel, unplug the factory headlight connector, insert the LACHTEM module between the connector and BCM socket, and reassemble. There’s no cutting, splicing, or ECU programming required, so the factory appearance and systems remain intact.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDriver-side kick panel access; minimal hand tools needed.\u003c\/li\u003e\n  \u003cli\u003eFactory connectors are reused; no soldering or wire taps.\u003c\/li\u003e\n  \u003cli\u003eComes as a single headlight all-on mod harness and basic instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat protection and durability features does the harness offer?\u003c\/h3\u003e\n\u003cp\u003eThe harness uses a corrugated outer shell for enhanced abrasion, heat and flame resistance, extending service life in underhood or wheel-well environments. Corrosion-resistant contacts and robust strain relief reduce failure points from vibration and exposure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCorrugated shell for abrasion and flame protection.\u003c\/li\u003e\n  \u003cli\u003eImproved heat and corrosion resistance for long-term reliability.\u003c\/li\u003e\n  \u003cli\u003eOEM-style connectors and secure junction points for stable operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The LACHTEM Auto Fog \u0026amp; All Lights Mod Harness suits owners of compatible Chevy Silverado and GMC Sierra refreshed trucks who want better nighttime illumination and factory-style operation without permanent wiring changes. It’s ideal for DIYers and professional installers who prefer a reversible solution that preserves OEM connectors and vehicle electronics while improving fog-light behavior and overall forward visibility.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this mod require programming or cutting factory wires?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The LACHTEM harness is plug-and-play—no cutting, splicing, or ECU programming required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it work with smart beam (automatic high beam) systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It preserves smart beam behavior; fogs follow high beams except when smart beam prevents manual fog activation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"LACHTEM","offers":[{"title":"Default Title","offer_id":48083100467358,"sku":"B0FHKSRKF2","price":60.56,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/lachtem-harness-installed-front-view.jpg?v=1785824898","url":"https:\/\/northtrailauto.ca\/products\/lachtem-auto-fog-all-lights-mod-harness-for-2022-2026-chevy-silverado-sierra-plug-and-play-no-cutting","provider":"North Trail Auto","version":"1.0","type":"link"}