why is a sacrifice key required for 2012-2015 vw standard key installation?

Question

im looking to install the evo-one system with the THAR-vw3 and its showing a sacrifice key wraped to complete the installation... im confused as to what the function is, as i thought the modual would learn and act as a transponder for the key. is there a way around this with a more direct fit system?

Answer 1

Think you might be looking at the wrong guide. There are two guides, one with key wrap, one without. The no key wrap requires the TB-VW as well. 

(am assuming it's a beetle)

https://fortin.ca/en/vehicles/volkswagen/beetle/2012-standard-key/

 

Guide with TB-VW (no key required): 

https://cdn02.fortin.ca/download/64701/evo-one_ig_thr_bi_vol3_beetle_2012-2014_key_tb_a_64701.pdf