Abstract: A reverse current protection system for a vehicle electrical system that communicates with a trailer electrical system generally includes a mode determination module that receives a reverse current flow detection signal and that selectively determines a field effect transistor (FET) operating mode to be a reverse on mode based on the reverse current flow detection signal. A current flow control module generates a current flow control signal to a field effect transistor to control the field effect transistor based on the determined FET operating mode.

Abstract: Services for a vehicle or fleet of vehicles can be ordered, renewed, modified, managed, configured, and/or cancelled through a common interface. Services may be managed remotely from outside the vehicle as well as from within the vehicle. For example, the driver of a vehicle could access a secure web site from their home computer to subscribe for satellite radio services, cancel a subscription for global positioning information, renew a contract for broadband Internet access in the vehicle, and modify a relationship for remote vehicle security services. Each service that is registered with the system can possess a different status. Such functionality allows devices necessary for various services to be pre-installed in the vehicle. The service management system can also store user profiles that reflect user preferences and patterns of behavior with respect to how the services are performed and configured.