A system and method for controlling onboard equipments, which can make a driver
certainly understand operations of alarms corresponding to various functions of
a vehicle, and which can make the functions of the vehicle give full effects. When
drive guide data corresponding to a set vehicle condition and simulated vehicle
condition data concerning the set vehicle condition are stored in a memory (700),
and a navigation device (400) plays the drive guide data stored in the memory
(700), a system control unit (100) makes a vehicle condition advise
unit (200) warn a driver of the set vehicle condition by a simulation on
the basis of the simulated vehicle condition data. Accordingly, the driver can
know an alarm operation of the vehicle condition advise unit corresponding to the
set vehicle condition by the simulation.