Nissan ARIYA 2023 Owners Manual
6.4.2.1. 
12-volt battery charge warning light
The DC/DC converter converts 400 volt Li-ion battery voltage to charge the 12-volt battery.
When the power switch is in the ON position, the 12-volt battery charge warning light illuminates and then turns off.
When this warning light illuminates with the power switch in the READY to drive position, a chime sounds and the following warning lights also illuminate.
Master warning light (red)
EV system warning light
The following messages also appear on the vehicle information display.
If the vehicle is being driven: [Stop safely] and if the vehicle is stopped: [Apply parking brake]. When these messages appear, immediately stop the vehicle in a safe location, apply the parking brake and push the park button on the shift lever to place the vehicle in the P (Park) position. The warning and the chime stop when the parking brake is operated or the vehicle is in the P (Park) position. Contact a NISSAN certified electric vehicle dealer for support.
The DC/DC converter system may not be functioning properly if the 12-volt battery charge warning light illuminates continuously when the power switch is in the READY to drive position. Immediately stop the vehicle in a safe location and contact a NISSAN certified electric vehicle dealer.
If the 12-volt battery charge warning light illuminates continuously when the power switch is in the READY to drive position, do not charge the 12-volt battery. It may lead to a malfunction of the DC/DC converter system. Contact a NISSAN certified electric vehicle dealer.
If the vehicle does not go into the READY to drive position (when the power switch is pushed with the brake pedal is depressed), jump-start the vehicle to place the power switch in the READY to drive position. See
.Do not jump-start the vehicle and contact a NISSAN certified electric vehicle dealer for inspection:
If the 12-volt battery charge warning light turns off when the vehicle is in the READY to drive mode, the 12-volt battery may be discharged or there may be a malfunction in the 12-volt battery related system.
If the 12-volt battery charge warning light continues to illuminate when the vehicle is in the READY to drive mode, there may be a malfunction in the DC/DC converter. Contact a NISSAN certified electric vehicle dealer for inspection.