Method and apparatus are disclosed for active park assist detection of semi-trailer overhang. An example vehicle includes a first range detection sensor, a second range detection sensor different from the first range detection sensor, and a parking assist unit. The parking assist unit detects, with the first and second range detection sensors, a second vehicle with an overhang adjacent to a parking space. Additionally, the parking assist unit broadcasts, with a DSRC module, a message including properties of the parking space accounting for the overhang.