When the system fails
WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
"4WD SYSTEM SERVICE REQUIRED" should be displayed at the center on the multi-information display, and "4WD" should flash at the left upper.
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.