Nissan’s appropriately-named ProPilot Assist indicates the system’s functionality, and the promotional material and the handbook correctly indicate the limitations of the system capabilities. Status information is clear, and the Ariya offers a head-up display showing the system status in the driver’s direct line of sight. Nissan did not equip the Ariya with an internal camera and the system relies only on steering wheel input for Driver Monitoring. The system balances driver steering input with lane guidance, promoting co-operative driving.

Nissan combines map-based speed limit information with real time camera inputs to manage fixed, variable and temporary speed limit signs. The system can adapt speed for upcoming road features such as curves and roundabouts, but not for approaching junctions. The Ariya avoids a collision with moving vehicles in the ACC test scenarios and responds also to stationary cars, with AEB interventions providing additional support in critical situations. The driver is supported through the S-Bend, but the system keeps the car fully within the lane only at the lowest test speed. The vehicle has an Active Blindspot system designed to prevent lane changing into adjacent vehicles. A lane-change assist function is not available. In case of an unresponsive driver, the Nissan performs a controlled stop in lane. If the radar or camera are blocked the Ariya provides a timely warning and prevents system activation.

The Nissan Ariya provides a good, balanced level of driver engagement and driving assistance. Combined with excellent safety back-up, the system offers a Very Good level of highway assistance overall.