GM Tech2 is a diagnostic scanner that can be used on not only GM vehicles but also SAAB, OPEL, SUZUKI, and Holden vehicles with an additional 32MB card. It supports functions like coding, programming, key programming with TIS2000 software until 2007, reading VIN numbers, and diagnosing GM vehicles from 1992 to 2013 with the help of authentic GM software and the CANDI module.