DRIVER ASSIST DEVICE AND ADAPTIVE WARNING METHOD THEREOF

A driver assist device and an adaptive waning method thereof are provided. The driver assist device includes a processor and a non-transitory storage medium containing program instructions executed by the processor. The processor detects outdoor and indoor information of a vehicle using a detector and determines a waning mode based on a traveling situation and a driver state identified through the detector when a warning-requiring situation is recognized during an operation of a driver assist function. A warning is then output based on the determined warning mode.