Technical Description (Comment)
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.
When the LDW does not enter the warning monitor mode, the windshield glass, the stoplight switch circuit, the column switch circuit, the turn signal light circuit, the ETACS-ECU or the LDW-ECU may be defective.