Ii have a button on my 2016 V it unlocks the doors if u have the key in your pocket!
Ii have a button on my 2016 V it unlocks the doors if u have the key in your pocket!Not bad advice in general (using an electronic cleaner) however it is doubtful the cleaner spray would actually get to and into the microswitch(s) buried within the door latch assembly. Also.. what "button" on the door handle are you referring to? There is no button on the door handle of a 2nd gen CTS.
Pulling on a door handle activates the door actuator, which in turn unlatches/frees the door latch assembly which then allows the door to be opened. The mechanical action of the door latch assembly during the moments of "door opening" and "door closing" mechanically causes the microswitch(s) inside the door latch assembly to change state.