Roadside service is a term used to describe services that are available to drivers who experience car trouble while on the road. The most common roadside service is towing, which is indicated by the crossword solution 'TOW'. Towing is a service that involves a TOW truck coming to the location of the broken-down vehicle and transporting it to a repair shop or other destination. Roadside service can also include jump-starting a car, changing a tire, providing fuel, and other services.