2 KeylessOption Replacement Key Remote Keyless Emergency Insert Blade Blank for Lexus Smart Keys Pair of Replacement emergency keys that slide into the bottom of smart/prox keys. No transponder chips included. This part is compatible with the following vehicles: This key needs to be cut prior to using. No programming is required! See product description for a complete list of vehicles this part is compatible with. Replaces HYQ14AAB, HYQ14AAF, HYQ14ACX This is a replacement part to match the original in form and function