A barrier operator includes a drive motor and a controller for causing the motor to move the barrier between open and closed positions and for monitoring parameters related to forces acting on the barrier during movement thereof. A tilting linkage is operably secured to a frame to allow a pair of spaced apart wheels to remain substantially aligned with the plane of the vehicle throughout its range of movement while still allowing the steering axes of each wheel to intersect the substantially vertical centerline of each wheel. An air channel is provided in the first dielectric layer, the air channel formed to be substantially coextensive with the conductor or pair of conductors. In another embodiment switching from disabled to enabled comprises the UE’s configured set of CCs being changed from one to multiple cells; and switching from enabled to disabled comprises the UE’s configured set of CCs being changed from multiple cells to one cell. In one example, a driveline disconnect clutch transfer function may be adapted in response to engine operating conditions during closing of the driveline disconnect clutch.