GM Tech-2 is a very good tester used to diagnose GM vehicles. The GM Tech 2 contains Authentic GM software and provides support for on-board diagnostics on all GM systems 1991 thru 2013. It supports multi-language.With free TIS2000 software,will allow you to do GM programming till 2007 year .
Diatronik Support all renesas and Infineon airbag restore by OBD2 up to 2016
Diatronik Support Dash mileage correction via OBD2
Diatronik Support Airbag Calculator via USB
Diatronik have many more function like OBDII Diag, IMMO Tool, G-Prog in develop, will add later.