My car has the rear window locks with one button. It has the 8 pin plug. Can I replace it with two locks? It has 10 pins. Will it work?!

That's for the Child lock in the door. It requires a different lock to be fitted to work correctly.

It is not a case of just changing out a window switch.

 

Ive carried it out as seen here:

 

 

You need to run a few new wires from the front door module to the switch pack.

You then need new rear door modules and new rear door locks and new wiring to go between them.

 

The door modules need the correct datasets and coding adding to them also.

 

Master Jedi @ApertureS talked. To chose you have. Either forget the idea you must, or prepare yourself for several hours of DIY you will... 😁

Thanks for the replies. I"ll stick with the one button lock. 

Out of curiosity, when I was messing with my "double lock" switch, if I press the 2 buttons at the same time it performs as the rear window lock did, ie. blocking the rear windows from being opened.

1 hour ago, defsix said:

Out of curiosity, when I was messing with my "double lock" switch, if I press the 2 buttons at the same time it performs as the rear window lock did, ie. blocking the rear windows from being opened.

Not too sure what you mean

 

When the electronic child lock is engaged on either or both rear doors it prevents the rear interior door handle from working, disables the rear window switch and turns off the small LED in the interior door handle.

1 hour ago, ApertureS said:

Not too sure what you mean

 

When the electronic child lock is engaged on either or both rear doors it prevents the rear interior door handle from working, disables the rear window switch and turns off the small LED in the interior door handle.

Yes, but if you press them at the same time it also child locks the rear windows.

1 hour ago, defsix said:

Yes, but if you press them at the same time it also child locks the rear windows.

If you press them individually it also child locks the rear windows though.

 

Or do you mean child locks the window without the door?

It child locks the windows without the child lock on the door.