Nissan Juke Hybrid 2024 Owners Manual
11.6.1. Checking inverter coolant level

Check the coolant level in the reservoir (A) when the engine and inverter are cold. If the coolant level is below MIN level (2), add coolant up to the MAX level (1).

If the cooling system frequently requires coolant, have it checked by a NISSAN dealer or qualified workshop.
Owners Manual