If the map lamp (bulb and LED type) does not operate, we recommend that you checked an authorized Kia dealer.
Kia Niro (DE HEV) Owners Manual: Engine Coolant
The high-pressure cooling system has a reservoir filled with year round antifreeze
coolant. The reservoir is filled at the factory.
Check the antifreeze protection and coolant level at least once a year, at the
beginning of the winter season, and before traveling to a colder climate.
CAUTION
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Kia Niro 2017 (DE HEV) Service Manual: Specifications
Specification
Item
Specification
Rated Voltage
DC 12.5V
Operating voltage
DC 12.2 - 15.3V
Operating temperature
-104 - 167°F (-40 - 75°C)
Output voltage ...