Display control system for a working vehicle

A display control system for a working vehicle comprising:

• a plurality of sensors arranged on a vehicle body;
• a display located on the vehicle body for displaying messages relating to various information;
• a display controller operable in response to information from said sensors for selecting information to be displayed in said display, wherein said display controller has
• an ordinary display mode for displaying, on said display during an operation, information necessary to the operation,
• an adjusting mode for displaying, on said display during a non-operation time, information for correcting signals from said sensors, the information including messages for operations to be carried out by an operator wherein in said adjusting mode, messages for plural types of operations to be carried out by the operator are displayed in a predetermined order on said display, said messages being excluded after the operations are determined to have been carried out properly, based on signals from said sensors, said messages being displayed again when the operations are determined not to have been carried out properly, based on signals from said sensors, and
• a diagnostic mode for displaying, on said display during a non-operation time, information for checking the signals from said sensors, the information including messages related to the sensors diagnosed;
• and
• a display mode selecting means for selecting one of said three display modes according a state of said working vehicle.