A vision system for a vehicle includes at least one camera disposed at the equipped vehicle and having a field of view exterior of the equipped vehicle. A control includes an image processor for processing image data captured by the at least one camera. The control, responsive at least in part to image processing of captured image data by the image processor, is operable to at least one of (i) control an HVAC system of the equipped vehicle responsive to a type of vehicle detected exterior of the equipped vehicle, (ii) control an HVAC system of the equipped vehicle responsive to a vehicle detected exterior of the equipped vehicle being within a threshold distance of the equipped vehicle and (iii) control an HVAC system of the equipped vehicle responsive to detection of a construction zone.