{"product_id":"nissan-cwtwb1u840-4-button-smart-key","title":"Nissan Sentra \/ Versa \/ Leaf 4-Button Smart Key – CWTWB1U840 – 315 MHz – ID46","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eNissan Sentra \/ Versa \/ Leaf 4-Button Smart Key – CWTWB1U840 – 315 MHz – ID46\u003c\/strong\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAftermarket replacement smart key for select Nissan Sentra, Versa, and Leaf vehicles equipped with the CWTWB1U840 smart key system.\u003c\/p\u003e\n\u003cp\u003eThis 4-button smart key operates at 315 MHz and uses an integrated ID46 transponder system. The remote provides Lock, Unlock, Trunk Release, and Panic functions and is designed for compatible proximity keyless-entry and push-to-start vehicle applications.\u003c\/p\u003e\n\u003cp\u003eAn NI06 \/ DA34 emergency key is used for mechanical door access. Always verify the FCC ID, frequency, button configuration, OEM part number, emergency blade profile, and vehicle application before programming. \u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFCC ID: \u003ccode\u003eCWTWB1U840\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eIC: \u003ccode\u003e1788D-FWB11U840\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency: \u003ccode\u003e315 MHz\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder Chip: \u003ccode\u003ePhilips ID46\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eButton Count: \u003ccode\u003e4\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eButton Functions: \u003ccode\u003eLock \/ Unlock \/ Trunk Release \/ Panic\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eKey Type: \u003ccode\u003eSmart Key\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eKeyless Go \/ Proximity: \u003ccode\u003eYes\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key Profile included: \u003ccode\u003eNI06 \/ DA34\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eChip Configuration: \u003ccode\u003eIntegrated\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eManufacturer Type: \u003ccode\u003eAftermarket\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eCondition: \u003ccode\u003eNew\u003c\/code\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible Make: \u003ccode\u003eNissan\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eApplication Type: \u003ccode\u003eRemote \/ Proximity \/ Immobilizer\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key: \u003ccode\u003eIncluded\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key Profile: \u003ccode\u003eNI06 \/ DA34\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eBattery size: CR2032\u003c\/li\u003e\n\u003cli\u003eProgramming: \u003ccode\u003eDealer \/ Locksmith Programming Required\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eRemote Features: \u003ccode\u003eKeyless Entry, Power Lock, Trunk Release, Panic Mode\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eOEM \/ Service Cross-Reference: \u003ccode\u003e285E3-3SG0D \/ AX00013950 \/ PRX-NIS-4B7\u003c\/code\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNissan\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLeaf: \u003ccode\u003e2016\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eSentra: \u003ccode\u003e2013–2019\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eVersa: \u003ccode\u003e2013–2018\u003c\/code\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Some 2013 Nissan Sentra vehicles use a different remote. Exact OEM references indicate that \u003ccode\u003eCWTWB1U840\u003c\/code\u003e and \u003ccode\u003eCWTWB1U815\u003c\/code\u003e can both occur during the 2013 model year, so always verify the original FCC ID before ordering. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eProgramming \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis smart key requires programming to the vehicle's immobilizer and proximity system before use.\u003c\/p\u003e\n\u003cp\u003eProfessional locksmith or dealer programming equipment may be required. Confirm the original FCC ID, frequency, button layout, OEM part number, and compatible proximity system before programming.\u003c\/p\u003e","brand":"Aftermarket","offers":[{"title":"Default Title","offer_id":49580064440579,"sku":"PLS-RMT-NIS31B","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/6298\/8803\/files\/ChatGPTImage7sept2026_12_12_58.png?v=1788794022","url":"https:\/\/palmettolocksupply.com\/products\/nissan-cwtwb1u840-4-button-smart-key","provider":"Palmetto Lock Supply","version":"1.0","type":"link"}