TRANSMISSION SETTING SELECTION AND AUXILIARY BRAKING CONTROL SYSTEM

Systems, apparatuses, and methods for controlling a transmission and other systems and components based on operation of an auxiliary braking system for a vehicle are disclosed. A controller includes one or more processing circuits, and is configured to: receive data regarding operation of an auxiliary brake system of the vehicle; determine an auxiliary brake fault condition based on the received data regarding operation of the auxiliary brake system; determine that a vehicle speed is greater than a requested vehicle speed; and control a transmission to downshift at least one setting relative to a current transmission setting.