TOYOTA CITY, Japan—Several leading Japanese automakers are working together to develop technical specifications for next-generation vehicle communication systems. Participants include Daihatsu Motor Co., Mazda Motor Corp., Subaru Corp., Suzuki Motor Corp. and Toyota Motor Corp.

The goal of the initiative is to promote the common use of communications systems. By using connected services to link automobiles, they hope deliver safer and more convenient connected services.

Daihatsu, Mazda, Subaru and Suzuki will incorporate their own technologies into base vehicle communications technology developed by Toyota. Together, the automakers will create common connection specifications from vehicles to networks. By standardizing communication quality between vehicles and vehicle communications device centers, they will provide more convenient connected services to customers and faster connection speeds.