The vehicle certification label attached on the driver’s (or front passenger’s) side center pillar gives the vehicle identification number (VIN).
Kia Niro 2017 (DE HEV) Service Manual: Repair procedures
Adjustment
1.
After loosening the tailgate hinge (A) mounting bolts, adjust the tailgate
by moving it up and down, or right and left.
2.
Adjust the tailgate height by turning the tailgate overslam bumpers (B).
3.
...
Kia Niro (DE HEV) Owners Manual: Tailgate
WARNING - Exhaust fumes
If you drive with the tailgate opened, you will draw dangerous exhaust fumes
into your vehicle which can cause serious injury or death to vehicle occupants.
If you must drive with the tailgate opened, keep the air vents and all windows
open so that additional outside ai ...