Electronic control device

A vehicle electronic controller includes a peripheral obstacle identification section identifying obstacles near the vehicle, a blind spot region identification section identifying a blind spot region which is not in a detection range of the obstacle identification section, a region determination section which classifies the blind spot region into either a dangerous blind or a safe blind spot region and an obstacle region presumption section which presumes an obstacle presence region which is a region that a latent obstacle which is the latent obstacle which could be present at a previous time in the dangerous blind spot region which was classified at the previous time can be present at a present time, in which the region determination section determines that a region which overlaps with at least the obstacle presence region in the blind spot region that the blind spot region identification section identified is the dangerous blind spot region.