{"product_id":"keyecu-nissan-4-button-smart-proximity-remote-key-fob-fcc-cwtwb1u840-unprogrammed-for-2013-2018-sentra-versa-leaf","title":"Keyecu Nissan 4‑Button Smart Proximity Remote Key Fob — FCC CWTWB1U840, Unprogrammed for 2013–2018 Sentra\/Versa\/Leaf","description":"\u003cp\u003e\u003cstrong\u003eKeyecu’s Smart Proximity 4-button remote is a direct-replacement key fob designed to match the Nissan Sentra, Versa and Leaf models from 2013–2018 that use FCC ID CWTWB1U840.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your factory key fob is lost, damaged, or the buttons no longer respond, this Keyecu remote provides the same physical fit and button layout as the original so a certified locksmith can program it to your vehicle. It ships unprogrammed and includes the correct FCC and IC identifiers so professionals can register it to your car’s immobilizer system.\u003c\/p\u003e\n\n\u003ch3\u003eWill this remote physically fit my Nissan model?\u003c\/h3\u003e\n\u003cp\u003eYes — the Keyecu remote is molded to the same dimensions and button positions as the OEM fob for the listed Nissan years and models. Visual and part-number matching are essential to ensure mechanical compatibility before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplace FCC ID: CWTWB1U840, IC: 1788D-FWB1U840\u003c\/li\u003e\n  \u003cli\u003eCompatible with Nissan Versa 2013–2017, Sentra 2013–2017, Leaf 2013–2017\u003c\/li\u003e\n  \u003cli\u003eConfirm by matching your original key’s profile and FCC\/part number\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I get the remote programmed to my car?\u003c\/h3\u003e\n\u003cp\u003eThe Keyecu unit arrives unprogrammed and must be professionally programmed by a qualified locksmith or dealer. There is no user-accessible programming method — a specialized key programmer or locksmith tools are required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTake the remote and your vehicle to a locksmith or dealer\u003c\/li\u003e\n  \u003cli\u003eRecommended programming tools: X100 PAD2, Londor K518, X300 DP, SKP900\u003c\/li\u003e\n  \u003cli\u003eConfirm the locksmith can program CWTWB1U840 keyed remotes before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components and features are included with this fob?\u003c\/h3\u003e\n\u003cp\u003eThe Keyecu remote provides the shell, buttons, and internal board matching the OEM layout; it does not include pre-programming or vehicle-specific immobilizer codes. Battery and final testing are the responsibility of the installer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFactory-style 4-button layout for lock\/unlock\/trunk\/panic\u003c\/li\u003e\n  \u003cli\u003eInternal electronics compatible with CWTWB1U840 identification\u003c\/li\u003e\n  \u003cli\u003eShips unprogrammed — intended for locksmith programming\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before ordering?\u003c\/h3\u003e\n\u003cp\u003eBefore buying, verify your current key’s FCC ID and compare the housing visually to ensure a direct replacement. Also confirm local locksmiths can program this FCC ID so you won’t be left with an unusable fob.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMatch the FCC ID on your original key to CWTWB1U840\u003c\/li\u003e\n  \u003cli\u003eCompare button shape and key housing to photos or the original fob\u003c\/li\u003e\n  \u003cli\u003eCall locksmiths to confirm they will program this specific remote\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Drivers of Nissan Sentra, Versa or Leaf model years 2013–2018 who need a like-for-like replacement key fob shell\/electronics (FCC: CWTWB1U840) and are prepared to have a certified locksmith program the unit. This product suits owners wanting OEM-style fit and functionality without dealer markup, provided they arrange professional programming.\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: Does this Keyecu remote come pre-programmed?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, the Keyecu remote ships unprogrammed and requires a qualified locksmith or dealer to program it to your vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I verify this fob fits my Nissan?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check your original key for FCC ID CWTWB1U840 and visually confirm the button layout matches before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Keyecu","offers":[{"title":"Default Title","offer_id":48085893709982,"sku":"B08CK4NKX1","price":43.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/keyecu-front-view-fob.jpg?v=1785879832","url":"https:\/\/northtrailauto.ca\/products\/keyecu-nissan-4-button-smart-proximity-remote-key-fob-fcc-cwtwb1u840-unprogrammed-for-2013-2018-sentra-versa-leaf","provider":"North Trail Auto","version":"1.0","type":"link"}