SAE J 3161/1:2025-09-25

This SAE Standard specifies system requirements for an onboard vehicle-to-vehicle (V2V) safety communications system for vehicle classes of 2, 3, 4, and 5, ¹ including standards profiles, functional requirements, and performance requirements. The system is capable of transmitting and receiving the SAE J2735-defined basic safety message (BSM) over a PC5 Sidelink V2X (mode 4) communications link as defined in ETSI Release 14.^2,3 The system uses Institute of Electrical and Electronics Engineers (IEEE) 1609 standards for network and transport layer communications, as well as security.