Another test report: Lonsdor K518ISE key programmer read pin code and program smart key on Cadillac SRX from year 2010-2014 successfully.
Connect K518 host with vehicle via OBD diagnostic socket
Step 1: Read pin code
Select Immobilizer->Cadillac->Read Pin Code->Turn ignition to ON position
Read 4-digit pin code very fast
Step 2: Program smart key
Select SRX->2010-2014->Smart key->Type 1->Add smart key
Put the original car key in the car, don’t press the pedal brakes
Long press the Start button to switch ignition on
Insert the smart key to be programmed into the key slot, take the others out of car
Enter 4-digit pin code to access
Configuring system, wait for 10 minutes
Press Start button
Program succeed
Step 3: Sync key
Lonsdor K518 than prompts to hold down the start button for 12 sec
Release the Start button and wait for 5 sec
Press and hold the Start button until the dashboard turns on
Turn on the vehicle
Press the Start button and turn ignition off
Open and close the driver door, make sure all the electrical appliances are off
Configuring system, wait 30 sec
All key must be synchronized
Slam the brakes, press the Start button to start the engine and wait for 5 sec.
Done.