To remove the mechanical key, press and hold the release button (1) and remove the mechanical key (2).
To reinstall the mechanical key, put the key into the hole and push it until a click sound is heard.
WARNING - Ignition key (smart key)
Leaving children unattended in a vehicle with the ignition key (smart key) is dangerous even if the key is not in the ignition or start button is ACC or ON position. Children copy adults and they could place the key in the ignition or press the start button. The ignition key (smart key) would enable children to operate power windows or other controls, or even make the vehicle move, which could result in serious bodily injury or even death. Never leave the keys in your vehicle with unsupervised children, when the engine is running.
WARNING
We recommend that you use parts for replacement from an authorized Kia dealer. If an aftermarket key is used, the ignition switch may not return to ON after START. If this happens, the starter will continue to operate causing damage to the starter motor and possible fire due to excessive current in the wiring.
Kia Niro 2017 (DE HEV) Service Manual: Side Airbag (SAB) Module Description and operation
Description
The Side Airbags (SAB) are installed inside the front seat and protects the driver
and passenger from danger when side crash occurs. The SRSCM determines deployment
of side airbag by using Side Impact Sensor (SIS) signal.
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Kia Niro 2017 (DE HEV) Service Manual: Power Door Mirror Switch Schematic diagrams
Circuit Diagram
Driver Power Window Switch (Non-IMS
Type)
[Auto Folding Mirror
Switch]
[Non-Folding Mirror
Switch]
Driver Power Window Module (IMS Type)
...