Weather conditions have become a key element of driving safety, so the precision and individuation of meteorological information service for driving become the new urgent demand of operation meteorological service. To meet the demand, a system model of driving weather service is put forward. It is based on the customized route on the computer Google Maps and the short message service (SMS) received at mobile phone clients. The design is based on the data processing mode: data information knowledge products. The objective analysis of the gridded meteorological field information is used as the meteorological service foundation, and the route analysis is based on JSON, in which the user customized route is analyzed by means of Google Maps API. The PrimeFaces Decoder and the distribution function filtering methods are used to obtain the geographic coordinates of the route. The customized meteorological information service is provided via SMS to users. The car driving weather service system based on this model has been put into trial operation, which is a new attempt on SMS meteorological service.