Nissan LEAF 2023 Owners Manual
9.10.5. BSW temporary disabled status
When radar blockage is detected, the BSW system will be turned off automatically, a chime will sound and a warning message will appear in the Vehicle Information Display.
The system is not available until the conditions no longer exist.
The radar sensors may be blocked by temporary ambient conditions such as splashing water, mist, or fog. The blocked condition may also be caused by objects such as ice, frost or dirt obstructing the radar sensors.
Owners Manual