1. A method, comprising: receiving a shift schedule for a transmission of a vehicle, the shift schedule indicating when shift events occur based on operation of the vehicle; receiving vehicle operation data regarding operation of the vehicle; determining a power to overcome vehicle losses based on the vehicle operation data; determining an adjustment to the shift schedule responsive to the determined power to overcome losses and a vehicle operating parameter; and implementing the adjustment with the shift schedule of the transmission, wherein the adjustment includes one of a delay to a scheduled shift event, an early implementation of the scheduled shift event, or a skipping of the scheduled shift event.