DRIVER ASSIST SYSTEM

A driver assist system configured not to provide wrong information about a distance to an obstacle without using map data. A controller of the driver assist system comprises: a linear distance calculator that calculates a linear distance from to the obstacle; an estimator that estimates that an actual distance to the obstacle is different from the linear distance; and an information delivery inhibitor that inhibits provision of the information about a distance to the obstacle to the driver, if the estimator estimates that the actual distance is different from the linear distance.