{"product_id":"gm-genuine-parts-brake-light-switch-d1539j-25981009-oe-fit-replacement-with-factory-connector-and-precise-pedal-engagement","title":"GM GENUINE PARTS Brake Light Switch D1539J (25981009) — OE-fit replacement with factory connector and precise pedal engagement","description":"\u003cp\u003e\u003cstrong\u003eThe GM Genuine Parts D1539J (25981009) Brake Light Switch is the OEM-standard electrical switch that activates your brake lights when you press the brake pedal.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis replacement brake light switch is engineered and validated by General Motors to match the original factory component’s fit, function, and durability. Designed to interface with a vehicle’s electronics, the switch helps ensure brake lights illuminate reliably and that related vehicle systems receive correct signals. Whether replacing a failed switch or restoring proper brake-light operation after repairs, this GM Genuine Parts unit follows GM OE specifications.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this switch restore proper brake light function?\u003c\/h3\u003e\n\u003cp\u003eThe D1539J completes the electrical circuit when the brake pedal is depressed, sending a signal to illuminate the brake lamps. Because it’s manufactured to GM’s OE standards, it aligns with the original mounting points and electrical connectors to simplify installation and reduce troubleshooting time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect electrical replacement for compatible GM vehicles\u003c\/li\u003e\n  \u003cli\u003eMatches original connector and actuator dimensions\u003c\/li\u003e\n  \u003cli\u003eEngineered to engage precisely with pedal travel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this part integrate with vehicle electronics and safety systems?\u003c\/h3\u003e\n\u003cp\u003eThis GM Genuine switch is designed to work with the vehicle’s existing electronics so brake lamp signals and related inputs are consistent with factory behavior. It supports systems that rely on brake switch signals, such as cruise control disengagement, shift-interlock sensors, and onboard diagnostics.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with electronic modules that monitor brake input\u003c\/li\u003e\n  \u003cli\u003eHelps maintain correct diagnostic readings and fault codes\u003c\/li\u003e\n  \u003cli\u003eManufactured to GM OE specification for reliable electrical contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow straightforward is installation for a DIYer or technician?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically straightforward because the D1539J is built to match the original switch’s form and mounting. Many replacements require only basic hand tools, aligning the switch plunger with the pedal bracket and reconnecting the factory wiring harness. Still, follow vehicle-specific repair instructions and safety precautions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFactory-style connector for plug-and-play replacement\u003c\/li\u003e\n  \u003cli\u003eNo special programming generally required for most GM vehicles\u003c\/li\u003e\n  \u003cli\u003eRecommended to verify pedal travel and switch adjustment after fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat quality assurances and benefits come with GM Genuine Parts?\u003c\/h3\u003e\n\u003cp\u003eGM Genuine Parts carry the engineering and validation backing of General Motors and are often the original equipment used during vehicle assembly. This means the part is manufactured and tested to the tolerances and durability expectations set by GM, offering compatibility and longevity comparable to the factory-installed component.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned and tested to GM specifications for fit, form, and function\u003c\/li\u003e\n  \u003cli\u003eRecommended by GM as a replacement for the original factory component\u003c\/li\u003e\n  \u003cli\u003eOffers the reliability and durability associated with OE-level parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The GM Genuine Parts D1539J (25981009) Brake Light Switch is intended for GM owners, fleet technicians, and independent mechanics who need a reliable, OE-spec replacement. It suits anyone repairing brake-light faults, restoring proper brake-signal communication with vehicle electronics, or maintaining a vehicle to OEM standards.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eFeatures:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWork with vehicle electronics to help optimize vehicle capabilities\u003c\/li\u003e\n  \u003cli\u003eGM-recommended replacement part for your GM vehicle’s original factory component\u003c\/li\u003e\n  \u003cli\u003eOffering the quality, reliability, and durability of GM OE\u003c\/li\u003e\n  \u003cli\u003eManufactured to GM OE specification for fit, form, and function\u003c\/li\u003e\n\u003c\/ul\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: Is the D1539J an original equipment part?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The D1539J is a GM Genuine Parts unit engineered and validated to GM OE specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will I need to program this switch after installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Most GM vehicles do not require programming; typically you only need to adjust pedal travel and verify function.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GM GENUINE PARTS","offers":[{"title":"Default Title","offer_id":48086834610334,"sku":"B001KSGJKQ","price":20.23,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/gm-genuine-parts-d1539j-front-view.jpg?v=1785907228","url":"https:\/\/northtrailauto.ca\/products\/gm-genuine-parts-brake-light-switch-d1539j-25981009-oe-fit-replacement-with-factory-connector-and-precise-pedal-engagement","provider":"North Trail Auto","version":"1.0","type":"link"}