How OBDSTAR X300 PRO3 add 2016 Cadillac CT6 key when all key lost?

General speaking, OBDSTAR X300 PRO3 key master = SKP900+ Odometer adjustment+ EEPROM/PIC+ OBDII function. As to its powerful basic key programming function, this blog will show you how X300 PRO3 add 2016 Cadillac CT6 key when all key lost as an example.


First, Start OBDSTAR X300 PRO3 key master. Choose these items in this order:

“Vehicle”→ “Immobilizer”→ “Basic”→ “GM” → “GM V30.44” → “IMMO/ Remote” → “Cadillac” → “CT6” → “Immobilizer” → “2016”→ “All Key Lost”.




Next, Press the Start button once. Put the smart key into the card slot then take other smart key out of the car. Press “Enter” button to continue. After that turn the ignition off and wait.


Then, Input security code, press “Enter” button to verify. Wait about 12 minutes for configuring the system.


It will show “Erase success”, press “Enter” button continue.


Last step, Press the start button and press “Enter” button. Now OBDSTAR X300 PRO3 successfully add a new smart key for Cadillac CT6 2016! It will ask if you want to program next key. If yes, go on and the steps are similar. If no, stop here and exit the system.