Some of the things that are 'coded' in cars these days are nuts.
There is a very popular youtube channel (the Car Wizard - video here ) where he had a 2005 VW Jetta with a broken window winder. VW wanted $1000 for a new winder unit and said that it was 'coded' to the car as well - why you need to code something basic like a winder makes no sense to me - apart from locking all servicing into the manufacturers network.