TOOGOO(R) Replacement Keyless Entry Remote Key Fob Shell Case 4 Button Pad Compatible with Buick AB01502T This item isn't a remote key and it is just a remote key shell case replacement. Not electronic internals. Best replacement for a key with broken buttons or worn key case. There is NO interior (remote/electronics/transponder chip)unit inside. Just take the internal electronics(include immobilizer/transponder chip) from original remote and place them Good quality, durable to use.