Toyota City, Japan – Toyota will add a function to its navigation systems in Japan that will warn drivers who are going the wrong way.

The function, which will be incorporated into dealer-installed optional navigation systems starting in June, gives onscreen and voice alerts to wrong-way drivers. Jointly developed with Aisin AW and Denso, the function monitors the vehicle’s directions on highways and selected toll roads, including at toll gates, ramps, turn-offs and junctions.

The function was made possible by advances in communications-based map updating technology and in pinpoint position-recognition technology that uses information from GPS, a gyro, vehicle speed and other sensors to determine accurate vehicle movement.

Approximately 1,000 wrong-way driving incidents are reported annually in Japan, with a high percentage involving senior drivers.

Toyota Canada said that there are currently no plans to bring the system to North America at present.

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