A seat belt should be used when an injured person is being transported. When this is necessary, you should consult a physician for recommendations.
Kia Niro 2017 (DE HEV) Service Manual: Coolant Repair procedures
Refilling And Bleeding
Never remove the cap when the engine is hot. Serious scalding could be
caused by hot fluid under high pressure escaping from the reservoir.
  ...
Kia Niro 2017 (DE HEV) Service Manual: Rain Sensor Repair procedures
Removal
•
The dust or foreign substance on the rain sensor has a bad effect
upon the rain sensor capability, so protect the sensor surface with
protection cover until installing th ...