AWC Switch
WARNING: This page is about a different car, the 2015 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
By pressing the AWC switch, the driving mode can be switched among TARMAC, GRAVEL, and SNOW.
With each pressing of the AWC switch, the ACD control mode shifts in the order as follows: TARMAC → GRAVEL → SNOW → TARMAC
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.