Car-to-car communication is designed to prevent traffic accidents (Illustration: Infineon)

Toyota and Lexus will use Dedicated Short-Range Communications (DSRC) systems to connect cars in the US, starting with the 2021 model year.

The goal is to adopt the car-to-car communication protocol across most of the brands' models by the mid-2020s.

Toyota said adoption of the communication technology will let vehicles’ intelligent systems collaborate more broadly and effectly, which should help reduce traffic accidents.

“We believe that greater DSRC adoption by all automakers will not only help drivers get to their destinations more safely and efficiently, but also help lay the foundation for future connected and automated driving systems,” Toyota Motor North America CEO Jim Lentz said in a press release.

DSRC, hich uses seven communication channels in the 5.9 GHz spectrum brand, allows vehicles to exchange anonymized data almost continuously with other vehicles and with the environment. This information can alert drivers to potential hazards, thereby helping them to avoid accidents.

The technology does not require a cellular or data network and vehicles equipped with DSRC, therefore, won’t incur any cellular network carrier charges. And, because DSRC is an industry standard, communication between vehicles from different brands is possible.

Toyota and Lexus have been selling vehicles equipped with DSRC in Japan since 2015. To date, more than 100,000 DSRC-equipped Toyota and Lexus vehicles were on the road in Japan, Toyota said.

-By Arjen Bongard

(Editor's note: Powell Kinney, chief product owner – Mobility Services Platform, at Toyota Connected, will be a featured speaker at the automotiveIT International conference in Atlanta, GA, May 21-23. For more information, please go to