A system for warning that a slope is too steep for securely parking a machine includes: at least one inclinometer configured to be disposed on the machine, the machine being disposed on the slope and to measure a pitch of the machine; a controller that includes a processor and is configured to be operatively connected to the at least one inclinometer and to determine, using the pitch, if the machine cannot park securely; and a warning generator configured to be operatively connected to the controller and to alert at least an operator of the machine that the machine cannot park securely when the controller so determines.
