Here is the instruction on programming new key for U.S.made Nissan Sentra from 2007 to 2012 year NATS 5 models by using CK100 V45.02 CK100 Auto Key Programmer . Note: CK-100 V45.02 is new update to V45.09 which is verified to be working version as well as CK100 V45.06. Nissan Pin Code is required when program new keys. Instruction: Connect CK-100 auto key programmer with vehicle via OBD socket Check software and firmware information Check battery status Password saved Select IMMOBILIZER function form Main Menu Select vehicle brand and region: Nissan USA Select vehicle model: Sentra(IK) 07-12 CK100 will prompt how many token left Select the Nissan fuel type gasoline or diesel, here we choose gasoline Insert a key and turn ignition ON We note that the warning light stays signal indicating key is not programmed Select Nissan USA NAT system: NATS 5 Select Program New Keys Without pin code you cannot program new keys. Enter 4-digit pin ...