【Just an Empty Key Fob Shell】 This item isn't a complete remote key fob, it just an aftermarket replacement key shell, NO interior units (electronics/transponder chips/battery) inside. 【Perfect Fitment】Compatible for Chevrolet 2016-2021 HYQ4EA/HYQ4AA. 【Compatible Part Number】this key fob case replacement is compatible with original FCC ID: HYQ4EA/HYQ4AA. 4 Buttons: Unclock, Lock, Trunk Open, Panic Alarm. Check it carefully before purchasing. 【How to Use】1. Please cut the key blade by your local locksmith; 2. Take the internal electronics (include immobilizer/transponder chip) from your original remote and place them to our this new key shell, then Done! There's no programming needed! 【Package Incleded】1* Replacement Smart Remote Key Case Shell. Key Fob Shell, Alliskeys Replacement Smart Remote Key Case Cover 4 Buttons Suitable for Chevrolet 2016-2021 Camaro Cruze Malibu HYQ4EA/HYQ4AA