Clean the belt webbing with any mild soap solution recommended for cleaning upholstery or carpet. Follow the instructions provided with the soap. Do not bleach or re-dye the webbing because this may weaken it.
Kia Niro 2017 (DE HEV) Service Manual: Assist Handle Components and components location
Component Location
1. Assist handle
...
Kia Niro (DE HEV) Owners Manual: Forward and backward adjustment
The headrest may be adjusted forward to 3 different positions by pulling the
headrest forward to the desired detent.
To adjust the headrest to it’s furthest backwards position, Pull the headrest
fully forward to the farthest position and release it.
Adjust the headrest so that it properly ...