An extensible draw bar for facilitating coupling of a towed vehicle to a towing vehicle. An extension may be slidably secured to a static portion of a draw bar. A lock may be secured to the draw bar and be activated and deactivated to fix and release the extension, respectively. An extender may be activated to move the extension outwardly from the static portion. The extension may be slidable with respect to the lock while the lock is activated for certain positions of the extension relative to the lock. The extension may be positionable relative to the activated lock to automatically engage the lock to fix the position of the extension relative to the static portion.