A vehicle body assembly includes a steering column assembly, a steering wheel, an actuator mechanism and a controller. The steering wheel is rotatably supported to the steering column assembly for rotation about a first axis. The actuator mechanism is connected to the steering column assembly and includes a lever movable relative to the steering column assembly between a first position and a second position about a second axis that extends in a direction perpendicular to the first axis. The controller is operably connected to the actuator mechanism and to a trailer connector such that in response to the lever moving from the first position toward the second position, the controller transmits a braking signal to the trailer connector corresponding to activation of a trailer braking system of a trailer.