Sir in vitz, premio, axio, fielder etc, there is a button on which push start is mentioned, when u press that button, the car starts in the presence of remote... ok

Next... in passo, there is a twist button as shown in pic, which u have to twist forward with your fingers, in the presence of remote, and the car starts... ok

Technology is same, pushing apparatus is different...
In case of emergency means, if the batteries of remote get dead or remote lost, There is a MASTER KEY, which can be inserted into the jacket to start the car in the absence of remote... ok... now its clear or not... 
This twist start is also present in Honda FIT 10th anniversary edition...