PROGRAMMING: You can buy our program by yourself set and program it at home within 10 minutes.Otherwise, you need to find a locksmith which is very troublesome and expensive.Need 1 WORKING remote to turn the ignition on. After successfully adding a new car key, please add the previous key again. This self-programming tool can add up to 8 keys,please keep it. If you need to add more keys in the future, you can just buy separate keysSERVICEIf you have any questions with our key fob, please feel free to communicate with us at any timeFITMENT for 2011-2016 Hyundai Elantra SedanWHAT YOU GETComplete keyless remote with electronic board and battery, , never used replacement part ( Every single remote is tested before it is sent to make sure it is transmitting).We have two kinds of packaging that are sent out randomly, which does not affect useREFERENCE NUMBERReplacement for FCC ID:OSLOAK-360T,Please confirm part number and FCC ID to ensure proper fitment