V2V (Vehicle-to-Vehicle) is V2X communication in which vehicles exchange information with other vehicles to support awareness, warnings and cooperative applications.
What can vehicles exchange?
Depending on the system and application, V2V messages can describe position, speed, heading, vehicle dynamics or safety events. The goal is not to stream everything a car knows, but to share useful, timely information for a defined application.
Potential V2V uses
Examples include forward-collision warnings, intersection awareness, emergency-braking alerts and cooperative maneuvering. V2V can be particularly valuable when another vehicle is hidden by traffic, buildings or road geometry.
V2V is not autonomous driving
V2V provides communication. It does not decide the SAE automation level of a vehicle. A human-driven vehicle can use V2V, while an automated vehicle may use V2V as one input among sensors, maps and software.
Why is V2V gaining attention again in 2026?
India's Ministry of Road Transport and Highways published a draft framework proposing V2V for newly manufactured vehicles from October 2028, with AIS-230 compliance applying earlier where systems are fitted. The proposal uses C-V2X in the 5.875–5.925 GHz ITS band and lists safety applications including Emergency Brake Alert, Forward Collision Warning, Wrong-way Driving and Emergency Vehicle Alert. It remains a draft until the regulatory process is completed.
Interoperability is also a practical deployment issue: NIST published new C-V2X interoperability-testing work in September 2026 focused on heterogeneous onboard and roadside equipment.
Related terms
Sources
- India MoRTH / PIB — 2026 V2V draft framework
- NIST — C-V2X interoperability testing, Sep 2026
- 5GAA — C-V2X explained
- U.S. DOT — Vehicle-to-Everything communications
Automotive terminology evolves quickly. We separate established standards from manufacturer-specific names and update pages as technologies move into production.