Wanting to add keyless entry to passenger & tailgate door. Driver door is already available (Toyota).

Just bought a Prius Alpha 2017 and annoyingly find that the keyless entry only available in driver door.

Ideally this system should be a three-points-door-lock which also include the passenger and tailgate door.

Another interesting part is, I actually find another similar car (Prius Alpha - 7 seater, mine is 5 seater) that has the feature.

So...

  1. How does this system work actually? Does each door handle have antenna to detect the key fob? Or is it centralised?

  2. I understand that installing from scratch is hard, but this case, the driver side has it already? Can i just buy the parts from the 7 seat and make some simple wiring to make it work?

Thank you so much!

Just bought a Prius Alpha 2017 and annoyingly find that the keyless entry only available in driver door.

Ideally this system should be a three-points-door-lock which also include the passenger and tailgate door.

Another interesting part is, I actually find another similar car (Prius Alpha - 7 seater, mine is 5 seater) that has the feature.

So...

  1. How does this system work actually? Does each door handle have antenna to detect the key fob? Or is it centralised?

  2. I understand that installing from scratch is hard, but this case, the driver side has it already? Can i just buy the parts from the 7 seat and make some simple wiring to make it work?

Thank you so much!