{"product_id":"ford-m3n-a3c108397-5-button-smart-key-433mhz","title":"Ford 5-Button Smart Key – M3N-A3C108397 – 433.92 MHz – ID49","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eFord 5-Button Smart Key – M3N-A3C108397 – 433.92 MHz – ID49\u003c\/strong\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAftermarket replacement 5-button smart key for select Ford vehicles equipped with the M3N-A3C108397 proximity and push-to-start system.\u003c\/p\u003e\n\u003cp\u003eThis smart key operates at 433.92 MHz FSK and features an ID49 \/ NCF29A1-compatible HITAG PRO transponder system. The remote provides Lock, Unlock, Remote Start, Rear Access, and Panic functions.\u003c\/p\u003e\n\u003cp\u003eThe Rear Access function varies by vehicle application and may operate the trunk, power tailgate, or rear hatch.\u003c\/p\u003e\n\u003cp\u003eAlways verify the original FCC ID, IC number, frequency, button configuration, OEM part number, and vehicle application before ordering or programming.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFCC ID: \u003ccode\u003eM3N-A3C108397\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eIC: \u003ccode\u003e7812-A3C108397\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency: \u003ccode\u003e433.92 MHz FSK\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eU.S. Nominal Frequency: \u003ccode\u003e434 MHz\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder Chip: \u003ccode\u003eID49\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eChip Configuration: \u003ccode\u003eNCF29A1-compatible aftermarket\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder Technology: \u003ccode\u003eHITAG PRO-compatible\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder Security: \u003ccode\u003e128-bit\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eButton Count: \u003ccode\u003e5\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eButton Layout: \u003ccode\u003e4+1\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eButton Functions: \u003ccode\u003eLock \/ Unlock \/ Remote Start \/ Rear Access \/ Panic\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eRear Access Function: \u003ccode\u003eTrunk \/ Tailgate \/ Hatch – application dependent\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eKey Type: \u003ccode\u003eSmart Key\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eProximity \/ Keyless Go: \u003ccode\u003eYes\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003ePush-to-Start: \u003ccode\u003eYes\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eBattery: \u003ccode\u003eCR2450 \u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key Profile: \u003ccode\u003eHU101\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key Included: \u003ccode\u003eYes\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\u003eFord\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eApplication Type: \u003ccode\u003eSmart Remote \/ Proximity \/ Immobilizer\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eVehicle System: \u003ccode\u003eKeyless Go \/ Push-to-Start\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder: \u003ccode\u003eID49 \/ NCF29A1-compatible aftermarket\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder Technology: \u003ccode\u003eHITAG PRO-compatible\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency: \u003ccode\u003e433.92 MHz FSK\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003ePower Source: \u003ccode\u003eBattery Powered\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eBattery Size: \u003ccode\u003eCR2450\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key Profile: \u003ccode\u003eHU101\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key Included: Yes\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, Proximity Entry, Power Lock, Remote Start, Rear Access, Panic Mode\u003c\/code\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePart Number Information\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFord Mustang family\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ccode\u003e164-R8347\u003c\/code\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ccode\u003e5945957\u003c\/code\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ccode\u003ePR3T-15K601-BA\u003c\/code\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ccode\u003ePR3T-15K601-BB\u003c\/code\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFord F-150 family\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ccode\u003e164-R8370\u003c\/code\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ccode\u003e5946270\u003c\/code\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ccode\u003eRL3T-15K601-BA\u003c\/code\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese correspond to the F-150 five-button Tailgate \/ Remote Start configuration. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFord Expedition family\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ccode\u003e164-R8355\u003c\/code\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ccode\u003e5946046\u003c\/code\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ccode\u003ePL1T-15K601-GA\u003c\/code\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese correspond to the Expedition five-button Hatch \/ Remote Start configuration. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFord\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eF-150: \u003ccode\u003e2023–2025\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eMustang: \u003ccode\u003e2023–2024\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eExpedition: \u003ccode\u003e2023\u003c\/code\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFor \u003cstrong\u003eFord F-150\u003c\/strong\u003e, the corresponding U.S. \u003ccode\u003eM3N-A3C108397 \/ ID49 \/ 434 MHz\u003c\/code\u003e family is also independently documented through 2025, with Lock \/ Unlock \/ Tailgate \/ Remote Start \/ Panic. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor \u003cstrong\u003eFord Mustang\u003c\/strong\u003e, U.S. suppliers actually extend the exact FCC family to \u003cstrong\u003e2025\u003c\/strong\u003e, but they do so under the separate \u003ccode\u003ePR3T \/ 164-R8347 \/ 5945957\u003c\/code\u003e part-number family. \u003c\/p\u003e\n\u003cp\u003eFor \u003cstrong\u003eExpedition\u003c\/strong\u003e, U.S. references support \u003ccode\u003eM3N-A3C108397\u003c\/code\u003e through 2024 and even 2025 under the \u003ccode\u003e164-R8355\u003c\/code\u003e Hatch configuration\u003c\/p\u003e\n\u003ch3\u003eImportant Rear Access Button Note\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eButton Function Note:\u003c\/strong\u003e The Rear Access button function varies by vehicle application and may operate the trunk, tailgate, or rear hatch. Verify the original FCC ID, button configuration, and part number before ordering.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eProgramming \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis smart key requires professional programming to the vehicle's immobilizer and proximity system before use.\u003c\/p\u003e\n\u003cp\u003eThe ID49 \/ HITAG PRO-compatible transponder and remote functions must be registered using compatible Ford locksmith or dealer programming equipment.\u003c\/p\u003e\n\u003cp\u003eNo standard customer onboard programming procedure should be expected for these newer Ford applications.\u003c\/p\u003e\n\u003cp\u003eThe HU101 emergency insert key must also be cut to match the vehicle before mechanical use.\u003c\/p\u003e\n\u003cp\u003eBecause M3N-A3C108397 is used across several Ford smart-key configurations, compatibility should not be determined from FCC ID alone. Verify the original FCC ID, frequency, button configuration, part-number family, and vehicle application before programming.\u003c\/p\u003e","brand":"Aftermarket","offers":[{"title":"Default Title","offer_id":49588740817155,"sku":"PLS-RMT-FO65A","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/6298\/8803\/files\/ChatGPTImage8sept2026_18_09_10.png?v=1788901823","url":"https:\/\/palmettolocksupply.com\/products\/ford-m3n-a3c108397-5-button-smart-key-433mhz","provider":"Palmetto Lock Supply","version":"1.0","type":"link"}