Easy guide to program smart key on a Honda Civic year 2015 when all keys lost by using Xtool X100 Pad2 key programmer via OBD within 3 minutes.
Procedure:
Connect X100 Pad2 with vehicle diagnostic socket through main test cable
Select car brand Honda/Acura->Smart key system->Type 3 (button) key->All smart keys lost
Take all smart keys out of the car
Put 1st smart key into car
Press on Start button for twice, check whether the ignition can be switched on
Press YES to continue
Enter number of smart keys to be programmed: 2
Take smart key out of the car
Put a new smart key into the car
Turn ignition off
Then turn ignition on within 15 seconds
Check security indicator light goes off
Turn ignition off
Switch ignition on within 15 seconds
Turn ignition off
Switch ignition on within 15 seconds
Xtool X100 Pad 2 programs Civic 2015 smart key success
Test the new smart keys.