Nissan LEAF 2023 Owners Manual
9.10.6. System malfunction
When the BSW system malfunctions, it will be turned off automatically and a warning message will appear in the Vehicle Information Display.
Action to take:
Stop the vehicle in a safe location, turn off and restart the EV system. If the message continues to appear, have the BSW system checked by a NISSAN dealer or qualified workshop.
Owners Manual