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 FitmentCompatible with 2019-2021 GMC GMC Sierra Chevy Silverado.Compatible Part Numberthis key fob case replacement is compatible with original FCC ID: HYQ1EA, P/N: 13529632, 13591396. 5 Buttons: Unclock, Lock, Remote Start, Trank open, Panic Alarm. Check it carefully before purchasing.How to Use1. 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 Incleded1* Replacement Smart Remote Key Case Shell.