If you're afraid of your car getting stolen by way of extending your keyless rang like this
http://www.bbc.co.uk/news/av/uk-42132804/relay-crime-theft-caught-on-cameraYou can disable the keyless opening bit with OBDeleven by going to central electronics, then go to long coding and near the top you will see Kessy and it will say Installed. Tap on it and change it to not installed and then tap and hold the green tick, job done.
Now the car will not lock or open without pressing the buttons on the remote, mirrors still fold with puddle lights on and so on.
When you unlock your car with the key fob and get in you need to hold the key to where the key blade would go into the barrel on a non keyless car. This will then turn the ignition and then you start the car with the button as usual.
When you stop you stop the car as usual with the button, get out and lock the car with the key fob.
This is what OBDeleven screen will look like when it is turned off, hope this helps.