COMPATIBLE REPLACEMENT: Fits vehicles using FCC ID WAZSKE13D02 and part numbers TK52-67-5DY, TK52675DY. Designed for Mazda CX-5 (2017–2019). Please check our product description and fitment tool to confirm compatibility before ordering. FULLY ASSEMBLED & PRE-TESTED: Each 4-button smart key fob comes with electronics and battery pre-installed. Every unit is pre-tested for signal strength and performance to ensure reliable operation right out of the box. INCLUDES EVERYTHING YOU NEED: Package contains 1× Smart Key Remote Control Fob with built-in electronics, installed battery, and emergency key blade. PROFESSIONAL PROGRAMMING REQUIRED: This item must be programmed and cut by a qualified automotive locksmith or automotive professional. A working key is typically required to add a new one. QUALITY REPLACEMENT YOU CAN TRUST: Built to match the form and function of the original key fob for a secure fit, durable construction, and dependable performance. Replace your lost or damaged key with this Smart Keyless Entry Remote Fob designed specifically for Mazda CX-5 (2017–2019). With FCC ID WAZSKE13D02 and part numbers TK52-67-5DY and TK52675DY, this remote matches the original in look, feel, and functionality. It features 4 responsive buttons for Lock, Unlock, Trunk, and Panic, providing convenient and secure vehicle access. Each key fob comes fully assembled with electronics and battery pre-installed and is pre-tested for signal reliability to ensure top performance. Made with high-quality materials, it resists cracking and wear, offering long-term durability. Programming Notice: This key must be programmed and cut by a professional automotive locksmith before use. A working key is typically required to program a new one. Please verify your vehicle’s model, year, FCC ID, and part number to confirm compatibility before purchase. All items are pre-tested and include a working battery. Backed by our 30 day warranty for your peace of mind.