How does the factory remote start work on xhorse king card?
It gives you an option to take the trunk button and turn it into the remote start
Here vvdishop.com shows you how to select that option
Customize xhorse king smart card with vvdi key tool plus:
Here is an example of 2016+ Jeep Renegade.
Go to Remote Program- Jeep- Regengade (2016+) KeylessGo ID4A- Modify buttons- Smart key customization