Other information:
Kia Niro 2017 (DE HEV) Service Manual: Battery Repair procedures
Inspection
Battery Voltage and
Status
Check the battery voltage and status using the battery tester.
Battery Terminal
1.
Move back and forth to check that the battery terminals (A) are loose
or corroded.If the terminals are corroded, clean them.
...
Kia Niro (DE HEV) Owners Manual: Unlocking
Pressing the button of the front outside door handles with all doors (and tailgate)
closed and locked, unlocks all the doors (and tailgate). The hazard warning lights
will blink twice to indicate that all doors (and tailgate) are unlocked. The button
will only operate when the smart key is wit ...