{"product_id":"acura-kr5v1x-4-button-smart-key-315mhz","title":"Acura ILX \/ RLX \/ TLX 4-Button Smart Key – KR5V1X – 315 MHz – ID47","description":"\u003cp\u003e\u003cstrong\u003eAcura ILX \/ RLX \/ TLX 4-Button Smart Key – KR5V1X – 315 MHz – ID47\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAftermarket replacement smart key for select Acura ILX, RLX, and TLX vehicles equipped with the KR5V1X proximity and push-to-start system.\u003c\/p\u003e\n\u003cp\u003eThis 4-button smart key operates in the North American 315 MHz frequency range and features an ID47 \/ HITAG3-compatible transponder system. The remote provides Lock, Unlock, Trunk Release, and Panic functions.\u003c\/p\u003e\n\u003cp\u003eThis KR5V1X family is available under multiple Acura OEM part-number and memory configurations. Always verify the original FCC ID, frequency, button configuration, OEM part number, memory configuration, and vehicle application before ordering or programming.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFCC ID: \u003ccode\u003eKR5V1X\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrequency: \u003ccode\u003e315 MHz\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eNominal Frequency Specification: \u003ccode\u003e313.8 MHz\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder Chip: \u003ccode\u003eID47\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eChip Configuration: \u003ccode\u003ePCF7953X-compatible aftermarket\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder Technology: \u003ccode\u003eHITAG3-compatible\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eButton Count: \u003ccode\u003e4\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eButton Layout: \u003ccode\u003e3+1\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\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\u003eCR2032\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key Profile: \u003ccode\u003eHO01\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\u003eAcura\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\u003eProximity \/ Push-to-Start\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder: \u003ccode\u003eID47 \/ PCF7953X-compatible aftermarket\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTransponder Technology: \u003ccode\u003eHITAG3-compatible\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\u003eCR2032\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key Profile: \u003ccode\u003eHO01\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmergency Key Included: \u003ccode\u003eYes\u003c\/code\u003e\n\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, Trunk Release, Panic Mode\u003c\/code\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe replacement family includes three important Acura part-number configurations:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e72147-TZ5-A01 = Driver 1 \/ Memory 1.\u003c\/li\u003e\n\u003cli\u003e72147-TZ5-A11 = Driver 2 \/ Memory 2.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e\u003cbr\u003e\u003ccode\u003e72147-TX6-A22 \/ 72147-TZ3-A01 \/ 72147-TZ3-A11\u003c\/code\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAcura\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eILX: \u003ccode\u003e2016–2018\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eRLX: \u003ccode\u003e2016–2020\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003eTLX: \u003ccode\u003e2015–2017\u003c\/code\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e KR5V1X is used across several Acura and Honda smart-key configurations. FCC ID alone is not sufficient to determine compatibility. Verify the original FCC ID, frequency, four-button Trunk configuration, OEM part number, and vehicle application before ordering or programming.\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 ID47 \/ HITAG3-compatible transponder and remote functions must be registered using compatible Acura \/ Honda locksmith or dealer programming equipment.\u003c\/p\u003e\n\u003cp\u003eThe emergency insert key must also be cut to match the vehicle for mechanical door access.\u003c\/p\u003e\n\u003cp\u003eBecause the KR5V1X FCC family is used across several configurations—including Acura remotes with \u003cstrong\u003eTrunk\u003c\/strong\u003e and other Acura applications with \u003cstrong\u003eHatch\u003c\/strong\u003e—button configuration must be verified and should not be inferred from FCC ID alone.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Aftermarket","offers":[{"title":"Default Title","offer_id":49588317749507,"sku":"PLS-RMT-ACU10","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/6298\/8803\/files\/ChatGPTImage8sept2026_15_44_28.png?v=1788893132","url":"https:\/\/palmettolocksupply.com\/products\/acura-kr5v1x-4-button-smart-key-315mhz","provider":"Palmetto Lock Supply","version":"1.0","type":"link"}