OBDSTAR X300 PRO3 is powerful key programming tool for universal car models,and it can do key programming,as well as odometer adjustment, EEPROM/PIC and OBDII.etc.
Here we shows OBDSTAR XPRO3 Key Master to do 2016 Cadillac CT6 all key lost.
1.Connect Key Master with your car,and start the machine.
2.Choose GM car brand,enter in to GM 30.44,click immo/Remote.
3.Choose Cadillac car model,and CT6,2016 year.
4.Choose all key lost.
5.Press start button once.
6.Put the smart key into card slot,take other smart key out of the car,press ENTER to continue.
7.Switch ignition off,wait for the system configuration.
8.Input security code.Then Erase success.Press start button again.
9.Same wayt to do second key.