The key built into the remote control can be used for the following operations, depending on version:
Without Keyless Entry and Starting
With Keyless Entry and Starting
To eject the key or put it back in place, pull and hold the button.
Kia Niro 2017 (DE HEV) Service Manual: Roof Trim Assembly Components and components location
Component Location
1. Roof Trim Assembly
...
Kia Niro (DE HEV) Owners Manual: Engine clutch actuator fluid
Checking the engine clutch actuator fluid level
In normal driving conditions, the actuator fluid level does not go down rapidly.
However, oil consumption rate may rise as vehicle mileage increases, and leakage
in actuator related parts may result in increased consumption of the engine clutch ...